WO2006070853A1 - 歩留向上剤用組成物 - Google Patents
歩留向上剤用組成物 Download PDFInfo
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- WO2006070853A1 WO2006070853A1 PCT/JP2005/024023 JP2005024023W WO2006070853A1 WO 2006070853 A1 WO2006070853 A1 WO 2006070853A1 JP 2005024023 W JP2005024023 W JP 2005024023W WO 2006070853 A1 WO2006070853 A1 WO 2006070853A1
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- WIPO (PCT)
- Prior art keywords
- polymerizable monomer
- monomer
- cationic
- composition
- component
- Prior art date
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- 150000005309 metal halides Chemical class 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- WTNTZFRNCHEDOS-UHFFFAOYSA-N n-(2-hydroxyethyl)-2-methylpropanamide Chemical compound CC(C)C(=O)NCCO WTNTZFRNCHEDOS-UHFFFAOYSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- LEVJVKGPFAQPOI-UHFFFAOYSA-N phenylmethanone Chemical compound O=[C]C1=CC=CC=C1 LEVJVKGPFAQPOI-UHFFFAOYSA-N 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- XUXNAKZDHHEHPC-UHFFFAOYSA-M sodium bromate Chemical compound [Na+].[O-]Br(=O)=O XUXNAKZDHHEHPC-UHFFFAOYSA-M 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- PUVAFTRIIUSGLK-UHFFFAOYSA-M trimethyl(oxiran-2-ylmethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1CO1 PUVAFTRIIUSGLK-UHFFFAOYSA-M 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/08—Ethers
- C08B31/10—Alkyl or cycloalkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/04—Starch derivatives, e.g. crosslinked derivatives
- C08L3/08—Ethers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
Definitions
- the present invention relates to a composition for a yield improver comprising a cationic water-soluble polymer and an amphoteric water-soluble polymer, and the composition of the present invention is a technical field in the yield improver and paper industry. Can be used in awards.
- a yield improver is added to the white water from the paper machine. Suppresses pulp and filler spills and improves yield.
- a water-soluble polymer such as water-soluble high molecular weight polyethylene oxide or cationic polyacrylamide is usually used.
- the yield improver containing these water-soluble polymers is required to use a relatively large amount of the yield improver for the purpose of further improving the yield rate. This has the problem that the formation of paper is extremely bad.
- a method called a dual system using a cationic polymer and a ionic compound or a polymer in combination has recently been highlighted.
- a typical example is a method of adding a cationic inorganic compound such as bentonite after adding a cationic polymer (Patent Document 1), or a method of adding a cationic colloidal silica after adding a cationic polymer. (Patent Document 2).
- Patent Document 1 Japanese Patent Laid-Open No. 4281095 (Claims)
- Patent Document 2 Japanese Patent No. 2945761 (Claims)
- Patent Document 3 a yield improver comprising a composition containing two amphoteric polymers having different ionic equivalents
- This yield improver has excellent performance to solve the above-mentioned problems, but it may be insufficient in applications where further yield improvement performance is required. In particular, the yield and formation were inadequate depending on the paper used.
- the inventors of the present invention are able to ensure a high degree of paper formation at the same time, and furthermore, a novel process that is simple to use. In order to find a distillate improver, intensive studies were conducted.
- Patent Document 3 Japanese Patent Application Laid-Open No. 2003-175302 (Claims)
- acrylate or metatalylate is represented as (meth) acrylate
- acrylic acid or methacrylic acid is represented as (meth) acrylic acid
- acrylamide or methacrylamide is represented as (meth) acrylamide.
- the present invention relates to a composition for a yield improver comprising (A) a cationic water-soluble polymer (hereinafter referred to as component (A) and)) and (B) an amphoteric water-soluble polymer (hereinafter referred to as component (B)).
- component (A) and) a cationic water-soluble polymer
- component (B) an amphoteric water-soluble polymer
- cationic water-soluble polymer (A) used in the present invention various polymers can be used as long as they are cationic polymers.
- a cationic radical polymerizable monomer hereinafter simply referred to as a cationic monomer and V ⁇ ⁇
- a non-on radical polymerizable monomer hereinafter referred to as a non-on monomer
- cationic monomer various compounds can be used as long as they have radical polymerizability. Specifically, dimethylaminoethyl (meth) acrylate, jetylaminoethyl (meth) acrylate, and dimethyl Tertiary salts such as hydrochlorides and sulfates of dialkylaminoalkyl (meth) acrylates such as aminoethyl (meth) acrylate and jetylamino-2-hydroxypropyl (meth) acrylate and dimethylamino propyl (meth) acrylate.
- dimethylaminoethyl (meth) acrylate jetylaminoethyl (meth) acrylate
- dimethyl Tertiary salts such as hydrochlorides and sulfates of dialkylaminoalkyl (meth) acrylates such as aminoethyl (meth) acrylate and jetylamino-2-hydroxypropyl (meth) acrylate and dimethyla
- Hydrochloric acid salts of dialkylaminoalkyl (meth) acrylamides such as dimethylaminoethyl (meth) acrylamide and tertiary salts such as sulfates; Halogenation of methyl chloride adducts of dialkylaminoalkyl (meth) acrylates; Halogenated adducts such as alkyl adducts and benzyl chloride adducts Quaternary salts, and quaternary salts of Harogeni spoon Ariru adducts of alkyl halide adduct and base chlorides Njiru adduct of methyl chloride adduct of a dialkylaminoalkyl (meth) Akurirua bromide and the like.
- dialkylaminoalkyl (meth) acrylate quaternary salts are preferred, and dialkylaminoalkyl (meth) acrylate haloalkyl adducts are more preferred.
- Nonionic monomers include (meth) acrylamide, dimethyl (meth) acrylamide, dimethyl (meth) acrylamide and hydroxylethyl (meth) acrylate, ethylene oxide-added methoxy (meth) acrylate and ethylene.
- Examples include oxide (meth) aryl ether with oxide.
- (meth) acrylamide is preferable.
- monomers other than those described above may be used in combination as required.
- examples of such monomers include methoxyethyl (meth) acrylate, butoxychetyl (meth) acrylate, ethyl carbitol (meth) acrylate, methyl (meth) acrylate, ethyl (meth) acrylate and vinyl acetate. Etc.
- component (A) With respect to the production method of component (A), a general polymerization method with no particular limitation can be adopted.
- a general polymerization method with no particular limitation can be adopted.
- potassium persulfate, persulfuric acid as a polymerization initiator
- Ammonia 2,2'-azobis (2-amidinopropane) dihydrochloride
- a method of thermal radical polymerization using a redox polymerization initiator, etc. or a photopolymerization initiator of benzoin and acetophenone type
- radical photopolymerization by irradiation with ultraviolet rays.
- reverse-phase emulsion polymerization in addition to the polymerization initiator, polymerization may be performed using a water-insoluble initiator such as azobisisobutyryl-tolyl or peroxybenzoyl.
- the obtained gel polymer is then cut and chopped by a known method.
- the chopped polymer is dried at a temperature of about 60 to 150 ° C using a dryer such as a band dryer, rotary dryer, far-infrared dryer, or vibratory fluid dryer, and roll pulverization. It is pulverized by a machine to make a powdery polymer, and the particle size is adjusted.
- a relatively high hydrophilic surfactant of HLB is added, diluted with water, phase-inverted, Used as an oil-type emulsion.
- a powdery product is preferably used.
- Component (A) in the present invention preferably has a cation equivalent of 0.05 to 4. OOmeqZg. If the cation equivalent is less than 0.05 meqZg, the texture of the paper produced may be impaired. 4. If it exceeds OOmeqZg, the yield may decrease.
- the cation equivalent value in the present invention refers to a value measured by a colloid titration method.
- a cationic monomer may be used so as to achieve the preferable cation equivalent, but it is preferably used in an amount of 0.5 to 55.0 mol%.
- a 0.5% salt viscosity of 30-200 mPa's which is an index of molecular weight, is preferred. Especially preferred. If this value is less than 30 mPa's, the yield may decrease, and if it exceeds 200 mPa's, the formation may be impaired.
- the 0.5% salt viscosity means that a sample obtained by dissolving 0.5% of a polymer in a 4% sodium chloride aqueous solution at 25 ° C. with a B-type viscometer, The value measured at 60 rpm using 2.
- amphoteric water-soluble polymer (B) used in the present invention various polymers can be used.
- a copolymer having a thione monomer unit and a terionic radical polymerizable monomer (hereinafter simply referred to as terionic monomer) is preferred.
- the same monomers as described above can be used.
- dialkylaminoalkyl (meth) acrylate quaternary salts are preferred, and dialkylaminoalkyl (meth) acrylate haloalkyl adducts are more preferred.
- ionic monomer various compounds can be used as long as they have radical polymerizability. Specifically, unsaturated carboxylic acids such as (meth) acrylic acid, crotonic acid, itaconic acid and maleic acid are used. An acid and its salt are mentioned. Examples of the salt include ammonium salts and alkali metal salts such as sodium and potassium.
- (meth) acrylic acid is preferable.
- the component (B) is essentially composed of the cationic monomer and the ionic monomer. If necessary, a nonionic monomer can be used in combination.
- non-ionic monomer examples are the same as those described above.
- (meth) acrylamide is preferable.
- monomers other than those described above may be used in combination as required.
- examples of the monomer include those described above.
- Preferred monomer combinations in the present invention include: [1] Tertiary salt or quaternary salt of a alkylaminoalkyl acrylate as a cationic monomer, and athlyl as a ionic monomer.
- Examples of the component (B) include those produced by the same production method as described above.
- amphoteric water-soluble polymer of the component (B) is obtained by polymerizing a cationic monomer and a cation monomer in the presence of a polysaccharide (hereinafter referred to as polysaccharide-modified amphoteric). Polymer))
- natural product-based polysaccharides include starch, specifically, potato starch, waxy potato starch, sweet potato starch, waxy corn starch, high amylose corn starch, barley starch, rice starch, tapio starch , Sago starch, gurumannan, galactan, etc., as well as raw starch such as wheat flour, corn flour, chopped sweet potato, and chopped tapio force.
- raw starch such as wheat flour, corn flour, chopped sweet potato, and chopped tapio force.
- polysaccharides that are preferred include starch, potato starch, waxy potato starch, sweet potato starch, waxy corn starch, high amylose corn starch, wheat starch, rice starch Tapio force starch, sago starch, gulmannan, galactan and the like are preferable.
- starch processed starch obtained by chemical or enzymatic modification can be used.
- caking method include oxidation, esterification, etherification, and acid treatment.
- polysaccharide in the present invention those obtained by cationizing or amphotericizing the above-mentioned polysaccharides by a conventional method are excellent in copolymerizability with the monomers described later, and in performance as a flocculant. Excellent Therefore, it is preferable.
- the polysaccharide may be cationized by a conventional method.
- Examples of cationization include a method of treating raw material starch with a cationizing agent.
- Specific examples of the cationic agent include tertiary amines such as jetylaminoethyl chloride, and quaternary ammonium salts such as 3-chlorodi-2-hydroxypropyltrimethylammonium chloride and glycidyltrimethylammonium chloride. Etc.
- the cation substitution degree of the cationized polysaccharide is preferably 0.01 to 0.06 mass Z mass% in terms of nitrogen atom, more preferably 0.02 to 0.06 mass Z mass%. is there.
- the polysaccharide may have been subjected to a known reaction after cationization.
- it may be an amphoteric polysaccharide that has been subjected to a key-on reaction.
- Specific examples of the cation reaction include phosphoric acid esterification with inorganic phosphoric acid, etc .; urea phosphoric acid, acid with hypohalite, etc .; carboxymethyl alcohol with monochloroacetic acid; and sulfuric acid ⁇ ⁇ etc. are mentioned
- the polysaccharide is preferably used as a paste liquid, it is preferable to use a polysaccharide that has been subjected to cooking treatment.
- cooking is a method in which a polysaccharide is heated to a gelatinization temperature or higher.
- the heating temperature in this case may be appropriately set according to the type of starch used, but is preferably 70 ° C or higher.
- Starch cooking can be done either in a notch manner or in a continuous manner.
- the viscosity of the starch paste to be used is preferably 10 to 40 mass% with a solid content concentration of 100 to 10,000 mPa's measured with a B-type viscometer at 25 ° C! /.
- the polysaccharide paste used in the present invention is preferably diluted with water to give a slurry of 3 to 10% by mass.
- the cooking method may be the same method as described above.
- Cationic monomer, anionic monomer and other monomers are the same as described above.
- the same monomers as described above can be used as preferable monomers.
- the polysaccharide-modified amphoteric polymer is obtained by polymerizing a cationic monomer and a ionic monomer in the presence of a polysaccharide.
- Examples of the production method in this case include a method of polymerizing a cationic monomer and an anionic monomer according to a conventional method in the presence of a polymerization initiator and a polysaccharide.
- the proportion of the polysaccharide and the monomer is preferably 50% by mass or more of the monomer with respect to the total amount of the polysaccharide and the total monomer. 99% by mass is more preferred.
- the resulting polymer becomes insoluble in water, or when the resulting polymer is used as a flocculant, a high molecular weight polymer cannot be obtained. There is a case.
- Preferred monomer combinations in the present invention include: [1] Tertiary salt or quaternary salt of a alkylaminoalkyl acrylate as a cationic monomer, and athlyl as a ionic monomer.
- a copolymer of acrylamide as an acid salt and a nonionic monomer [2] a tertiary or quaternary salt of a dialkylaminoalkylmetatalylate as a cationic monomer, as a cationic monomer
- a copolymer comprising acrylate and acrylamide as a nonionic monomer and [3] a tertiary or quaternary salt of a dialkylaminoalkyl methacrylate and a dialkylaminoalkyl acrylate as a cationic monomer.
- copolymers consisting of tertiary or quaternary salts, acrylates as the ionic monomers and acrylamide as the nonionic monomers.
- polymerization initiator examples include an azo polymerization initiator, a redox polymerization initiator, and a photopolymerization initiator.
- Oazo initiator Various compounds can be used as the azo polymerization initiator, for example, 4, 4'-azobis (4-cyananovaleric acid) (10-hour half-life temperature 69 ° C, hereinafter the temperatures in parentheses have the same meaning) ), 2, 2, —azobisisobutyric-tolyl (65 ° C), 2,2, -azobis (2-methylbutyral-tolyl) (67 ° C), 2, 2,1azobis [2-methyl N— ( 2-Hydroxyethyl) propionamide] (86 ° C), 2,2, -azobis (2amidinopropane) hydrochloride (56 ° C), 2,2, -azobis [2- (2 imidazoline-2 yl) Propane] hydrochloride (44 ° C).
- 4, 4'-azobis (4-cyananovaleric acid) (10-hour half-life temperature 69 ° C, hereinafter the temperatures in parentheses have the same meaning)
- the azo polymerization initiator may be used alone or in combination of two or more.
- the proportion of the azo polymerization initiator used is preferably from 50 to 5000 ppm S, more preferably from 100 to 3000 ppm, still more preferably from 300 to 3000 ppm, based on the total amount of polysaccharide and monomer. ⁇ : LOOOppm. If the proportion of the azo polymerization initiator used is less than 50 ppm, the polymerization is incomplete and the amount of residual monomers increases. On the other hand, if it exceeds 5000 ppm, the resulting aqueous polymer becomes a low molecular weight product.
- the redox polymerization initiator is a combination of an oxidizing agent and a reducing agent.
- a peroxide is preferable in that it has a hydrogen abstraction effect of the polysaccharide, and a monomer can be preferably dragged into the polysaccharide.
- Peroxides include persulfates such as sodium persulfate, potassium persulfate, and ammonium persulfate, organic peroxides such as benzoyl peroxide, tert-butyl peroxide, and succinic peroxide. Products, hydrogen peroxide, and sodium bromate. Of these, persulfates are preferred because they have excellent hydrogen abstraction effects even at low temperatures at the start of polymerization!
- reducing agents include sulfites such as sodium sulfite and sulfites such as sodium hydrogen sulfite.
- examples include hydrogen salt, ascorbic acid and its salt, Rongalite, thiothionic acid and its salt, triethanolamine, and cuprous sulfate.
- Preferable combinations of a peracid salt and a reducing agent include persulfate and sulfite, persulfate and bisulfite, and the like.
- the ratio of the oxidizing agent is preferably 10 to: LOOOppm, more preferably 20 to 500ppm, and particularly preferably 40 to 200ppm with respect to the total amount of polysaccharide and monomer. If this ratio is less than lOppm, hydrogen abstraction may be insufficient, while if it exceeds lOOOppm, the molecular weight of the polysaccharide-modified amphoteric polymer may become small and sufficient performance may not be exhibited.
- the ratio of the reducing agent is preferably 10 to LOOOppm, more preferably 20 to 500ppm with respect to the total amount of polysaccharide and monomer.
- a ketal-type photopolymerization initiator As the photopolymerization initiator, a ketal-type photopolymerization initiator, a acetophenone-type photopolymerization initiator, and the like are preferable because they have a hydrogen abstraction effect on the polysaccharide and can preferably graft a monomer onto the polysaccharide. In this case, it is generated by photocleavage to generate benzoyl radical, which functions as a hydrogen abstraction agent.
- ketal-type photopolymerization initiator examples include 2,2-dimethoxy-1,1,2-diphenyl-1-one and benzyldimethyl ketal.
- the acetophenone-type photopolymerization initiators include jetoxyacetophenone, 4- (2-hydroxyethoxy) ferro (2-hydroxy-1-2-propyl) ketone, 1-hydroxycyclohexylphenolketone, and 2-methyl.
- a benzoin-type photopolymerization initiator a thixanthone-type photopolymerization initiator, and a photopolymerization having a polyalkylene oxide group as described in JP-A-2002-097236 Initiators can also be used.
- the ratio of the photopolymerization initiator is 10 to: LOOO ppm force S, more preferably 20 to 500 ppm, still more preferably 40 to 540, based on the total amount of polysaccharide and monomer. 200ppm. If this amount is less than lOppm, hydrogen abstraction may be insufficient or the residual monomer may increase, and if it exceeds lOOOppm, the molecular weight of the polysaccharide-modified amphoteric polymer may be reduced and performance may not be exhibited. .
- a photosensitizer such as an amine photosensitizer such as triethanolamine or methyljetanolamine may be used in combination.
- Examples of the polymerization method include aqueous solution polymerization, reverse phase suspension polymerization, reverse phase emulsion polymerization and the like, and aqueous solution polymerization and reverse phase emulsion polymerization are preferred because they are easy to handle.
- aqueous solution polymerization for example, a method in which a polysaccharide and a monomer are dissolved or dispersed in an aqueous medium and polymerized at 10 to 100 ° C in the presence of a polymerization initiator, etc. Can be mentioned.
- the raw material polysaccharide and monomer are dissolved or dispersed in water and added to an aqueous medium.
- an aqueous solution containing a polysaccharide and a monomer and an organic dispersion medium containing a hydrophobic surfactant having an HLB of 3 to 6 are mixed by stirring and emulsified. Thereafter, polymerization is carried out at 10 to 100 ° C. in the presence of a polymerization initiator to obtain a water-in-oil (reverse phase) polymer emulsion.
- the organic dispersion medium include high boiling point hydrocarbon solvents such as mineral spirits.
- the proportion of the polysaccharide and the monomer in the aqueous medium or the organic dispersion medium may be appropriately set according to the purpose, and is preferably 20 to 70% by mass.
- photopolymerization As the polymerization method, photopolymerization, redox polymerization or the like may be performed according to the type of polymerization initiator used.
- a polymerization initiator may be added to an aqueous solution containing a polysaccharide and a monomer, or to a reverse phase emulsion containing a polysaccharide and a monomer.
- a chain transfer agent may be used.
- the chain transfer agent include thiol compounds such as mercaptoethanol and mercaptopropionic acid, and reducing inorganic salts such as sodium sulfite, sodium bisulfite and sodium hypophosphite.
- aqueous solution polymerization is preferred.
- polymerization is preferably performed under light irradiation because polymerization time is particularly fast and productivity is excellent.
- ultraviolet light or Z and visible light rays are used as light to be irradiated, and among these, ultraviolet light is preferable.
- the intensity of light irradiation is determined in consideration of the type of monomer, the type and concentration of photopolymerization initiator and Z or photosensitizer, the molecular weight of the target polysaccharide-modified amphoteric polymer, the polymerization time, etc. Generally 0.5 to 1, OOOW / m 2 force is preferred, 5 to 400 W / m 2 force is preferred! / ⁇ .
- a fluorescent chemical lamp, a fluorescent blue lamp, a metal halide lamp, a high-pressure mercury lamp, or the like can be used.
- the temperature of the aqueous monomer solution is not particularly limited, but in order to allow the photopolymerization reaction to proceed smoothly under mild conditions, it is usually 5 to : LOO ° C is preferred 10 to 95 ° C is more preferred.
- the temperature at the start of the polymerization is preferably 5 to 15 ° C. in that the obtained polysaccharide-modified amphoteric polymer can have a large molecular weight and heat removal is easy.
- the photoirradiation polymerization reaction of the aqueous monomer solution may be performed in a batch system or a continuous system.
- a method for producing a polysaccharide-modified amphoteric polymer a method in which a cationic monomer and an anionic monomer are polymerized in the presence of a polysaccharide, an azo polymerization initiator and a hydrogen abstracting agent is used for the polysaccharide. It is preferable because it can graft a polymer having a high molecular weight and has a small amount of residual monomer, and when the resulting polysaccharide-modified amphoteric polymer is used as a flocculant, it is excellent in various aggregating performances U, .
- Examples of the azo polymerization initiator include those described above.
- Hydrogen abstraction agents include redox hydrogen abstraction (hereinafter referred to as RD abstraction) and light. Examples thereof include a polymerization initiator-based hydrogen abstraction agent (hereinafter referred to as PT abstraction agent).
- RD abstraction agent and PT abstraction agent function as a polymerization initiator for the monomer in addition to the polysaccharide power hydrogen abstraction.
- RD extracting agent examples include oxidizing agents and the like. In this case, it is preferable to use it together with a reducing agent.
- ketal-type photopolymerization initiators As specific examples of the wrinkle-drawing agent, ketal-type photopolymerization initiators, andacetophenone-type photopolymerization initiators, and the like are preferable.
- a monomer copolymer may be used as long as the main component is a graft copolymer obtained by grafting a monomer polymer to a polysaccharide. There may be a polymer that has not been grafted.
- the component (ii) obtained by aqueous solution polymerization is usually in the form of a gel, and is cut, chopped, dried, pulverized into a powdery polymer in the same manner as described above, the particle size is adjusted, or additives, etc. Is added and used.
- component (ii) obtained by water-in-oil (reverse phase) emulsion polymerization is actually used, it is diluted with water and phase-inverted and used as an oil-in-water emulsion in the same manner as described above.
- a powdery product is preferably used.
- 0.5% salt viscosity is 10 to: 10% to 80mPa's is more preferable to achieve high yield and formation that are preferred by LOOPa's.
- the preferred range is 10 to 50 mPa's. If this value is outside the range of 10 to: LOOPa's, the integrity of the paper produced may be impaired.
- the molar ratio of the cationic monomer to the cation monomer CaZAn may be appropriately set depending on the purpose.
- a paper satisfying CaZAn 1.2 is preferred.
- a paper having a Ca ZAn of 0.5 to 0.9 is more preferred.
- Such a component (B) has a cationic monomer and a ionic property so as to satisfy the above monomer ratio. It can be obtained by copolymerizing monomers.
- composition of the present invention is a combination of the components (A) and (B).
- the composition of the present invention can be produced by mixing the component (A) and the component (B).
- each component can be added separately.
- component (A) and component (B) one type can be used, or two or more types can be used in combination, and it is easy to use one type of component (A) and component (B). It is preferable.
- the proportion of the component (A) and the component (B) in the composition may be appropriately set according to the purpose, but the component (A) is 40 to 90% by mass and the component (B) is 10 to 60% by mass. A range is preferred.
- the polymer of the composition of the present invention is more preferably a powder or a powder in which a reverse emulsion is preferred.
- the polymer when the polymer is a powder, the powder is dissolved in water and used as an aqueous solution.
- the polymer is a reversed-phase emulsion, it is diluted with water and phase-inverted to obtain an oil-in-water solution.
- the solid content in this case is preferably 0.01 to 0.5% by mass, more preferably 0.01 to 0.1% by mass.
- the pH of the aqueous solution is preferably 4 to 6.
- the paper making method using the composition of the present invention may be made after adding the composition of the present invention to a good paper material according to a conventional method.
- the yield improver may be added in accordance with conventional methods. For example, it is added at the time of diluting the paper stock to the final concentration to be fed into the paper machine or after the dilution.
- the paper material to which the yield improver is applied it is sufficient if it is used in a normal paper making process.
- it contains at least pulp and filler, and if necessary, additives other than filler, Specifically, it includes a sizing agent, a fixing agent, a paper strength enhancer, a colorant and the like.
- the yield improver of the present invention can be preferably applied to a pulp having a relatively high ratio of used paper such as deinked used paper in the pulp. Further, the yield improver of the present invention has a filler ratio of It is preferably applicable to high papermaking systems, neutral papermaking systems, and high-speed papermaking systems.
- Examples of the filler include clay, kaolin, agarite, talc, calcium carbonate, magnesium carbonate, lime sulfate, barium sulfate, zinc oxide and titanium oxide.
- Examples of the sizing agent include acrylic acid styrene copolymer.
- Examples of the fixing agent include sulfuric acid band, force thione starch and alkyl ketene dimer.
- Examples of the paper strength enhancer include starch and cationic. Or amphoteric polyacrylamide etc. are mentioned.
- a preferable addition ratio of the yield improver is 50 to 500 ppm, more preferably 100 to 500 ppm per dry pulp mass in the paper.
- the pH of the stock after the addition of the yield improver is preferably 5 to 8 and more preferably 5 to 8 when maintained at LO. After adding the yield improver, the stock is immediately sent to the paper machine.
- composition of the present invention as a yield improver, it can be used as a one-component type that is not easily affected by the location of addition, timing, etc. in the papermaking process.
- the yield rate can be highly balanced.
- the present invention is a composition for a yield improver comprising the component (A) and the component (B).
- component (A) a copolymer having a cationic monomer unit and a nonionic monomer unit and having a cation equivalent value of 0.05 to 4.
- OOmeqZg a copolymer having a cationic monomer unit and a nonionic monomer unit and having a cation equivalent value of 0.05 to 4.
- Those having a 0.5% salt viscosity of 30 to 200 mPa.s are preferred.
- a cationic radical polymerizable monomer unit a copolymer having a cation radical polymerizable monomer unit, and a nonionic radical polymerizable monomer unit, or a polysaccharide
- An amphoteric water-soluble polymer obtained by polymerizing a cationic radical polymerizable monomer and a cationic radical polymerizable monomer in the presence thereof is preferred.
- the component (B) it is preferable to satisfy CaZAn 1.
- CaZAn the component (B)
- one that satisfies CaZAn> 5 is preferable.
- the component (B) preferably has a 0.5% salt viscosity of 10 to: LOOmPa.s.
- the composition of the present invention can be preferably used in a papermaking method for papermaking after adding any of the above-described compositions to the stock.
- DAC Methyl dimethylaminoethyl acrylate quaternary salt
- AM acrylamide
- V-50 azobisamidinopropane hydrochloride
- the obtained cationic polymer was taken out from the container and dried and pulverized to obtain a powdery amphoteric polymer. This cationic property is called C1.
- salt viscosity 0.5% salt viscosity (hereinafter simply referred to as salt viscosity). The results are shown in Table 1.
- a total of 760 g was charged into a stainless steel reaction vessel.
- Amphoteric starch slurry [Ace KT-245 manufactured by Oji Constarch Co., Ltd. Solid content: 22% or less, referred to as “KT-245”. ] was diluted to 5% solids using ion-exchanged water, and further heated at 80 ° C for 30 minutes and cooked to obtain an amphoteric starch slurry with 6% solids.
- the amphoteric starch slurry is charged with 213 g corresponding to 3% of the total amount of monomer and starch in terms of solid content, and 20 g of ion-exchanged water is added, and the solid content of all monomers and starch is added. The concentration was adjusted to 43%, the total weight 1. Okg, and the mixture was stirred and dispersed.
- the resulting polymer was measured for salt viscosity. The results are shown in Table 2.
- a polymer was produced in the same manner as in Production Example 3, except that the components and ratios used were changed as shown in Table 2 above.
- the resulting polymer was measured for salt viscosity. The results are shown in Table 2.
- compositions were mixed in the proportions shown in Table 3 below to produce compositions.
- a yield improver an aqueous solution containing 0.05% by mass of the following composition was used.
- the deinked waste paper and hardwood kraft pulp are disaggregated and beaten, and the deinked waste paper (50SS%) and hard leaf straw kraft pulp (50SS%) and 1% solids slurry (hereinafter referred to as raw pulp slurry) It was used.
- the disaggregation of waste paper and pulp is carried out until it reaches 350 ml with Canadian Standard Freeness (Canadian Standard Freeness, hereinafter CSF!), Except that 1% sample is used. It was.
- the following components [1] and [5] were added to the raw pulp slurry in this order every 10 seconds while stirring at lOOOrpm, and the total yield was measured by the dynamic drainage method.
- the paper was made to a basis weight of 60gZm 2 using a square-type yarn stall made by Kumagai Riki Kogyo Co., Ltd., and pressed using a square-type sheet machine press. Thereafter, the formation index of the paper formed by drying at 100 ° C. with an automatic dryer was measured by a formation tester.
- the yield improver of the present invention was excellent in both the total yield and the formation.
- Comparative Examples 1 and 2 using a single amphoteric polymer having the same monomer composition as in the Examples the balance between yield rate and formation was inferior.
- Comparative Example 3 using only the component (A) the yield was relatively good, but the formation was poor.
- Example 3 to 5 Components (A) and (B) shown in Table 5 below were mixed in the proportions shown in Table 5 below to produce compositions. As a yield improver, an aqueous solution containing 0.05% by mass of the following composition was used.
- composition of the present invention can be preferably used as a yield improver and can be used in the paper industry.
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- Polymers & Plastics (AREA)
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Description
Claims
Priority Applications (3)
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JP2006550831A JP4940952B6 (ja) | 2004-12-28 | 2005-12-28 | 歩留向上剤用組成物 |
EP05844841A EP1835074A4 (en) | 2004-12-28 | 2005-12-28 | COMPOSITION FOR EARNINGS SUPPLIERS |
US11/794,336 US7776181B2 (en) | 2004-12-28 | 2005-12-28 | Retention improving composition |
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JP2004-381099 | 2004-12-28 | ||
JP2004-381092 | 2004-12-28 | ||
JP2004381092 | 2004-12-28 | ||
JP2004381099 | 2004-12-28 |
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WO2006070853A1 true WO2006070853A1 (ja) | 2006-07-06 |
Family
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PCT/JP2005/024023 WO2006070853A1 (ja) | 2004-12-28 | 2005-12-28 | 歩留向上剤用組成物 |
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US (1) | US7776181B2 (ja) |
EP (1) | EP1835074A4 (ja) |
JP (1) | JP4940952B6 (ja) |
KR (1) | KR20070089832A (ja) |
WO (1) | WO2006070853A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006188694A (ja) * | 2005-12-27 | 2006-07-20 | Toagosei Co Ltd | 組成物 |
CN102644214A (zh) * | 2012-04-12 | 2012-08-22 | 华南理工大学 | 聚丙烯酰胺/埃洛石纳米管复合物造纸填料的制备方法与应用 |
WO2014199996A1 (ja) * | 2013-06-13 | 2014-12-18 | 栗田工業株式会社 | 製紙用添加剤及び製紙用添加剤の製造方法並びに紙の製造方法 |
JP2015001027A (ja) * | 2013-06-13 | 2015-01-05 | 栗田工業株式会社 | 製紙用添加剤及び製紙用添加剤の製造方法並びに紙の製造方法 |
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FI125712B (en) * | 2012-11-13 | 2016-01-15 | Kemira Oyj | Paper-making material and its use |
FI126527B (en) | 2014-11-17 | 2017-01-31 | Kemira Oyj | Process for the preparation of a dry cationic hydrogel polymer product, polymer product and its use |
CN108698872B (zh) * | 2015-12-08 | 2022-11-15 | 凯米罗总公司 | 聚合物组合物和使用方法 |
US10626320B2 (en) | 2015-12-08 | 2020-04-21 | Chevron U.S.A. Inc. | Methods for hydrocarbon recovery |
FR3048436B1 (fr) * | 2016-03-03 | 2018-03-23 | S.P.C.M. Sa | Procede de fabrication de papier et de carton |
FI128012B (en) | 2016-03-22 | 2019-07-31 | Kemira Oyj | A system and method for manufacture of paper, board or the like |
MX2018015283A (es) | 2016-06-10 | 2019-04-09 | Ecolab Usa Inc | Polimero de polvo seco de bajo peso molecular para usar como agente de resistencia en estado seco que fabrica papel. |
EP3662108A1 (en) | 2017-07-31 | 2020-06-10 | Ecolab Usa Inc. | Dry polymer application method |
EP3724265A1 (en) | 2017-12-13 | 2020-10-21 | Ecolab USA Inc. | Solution comprising an associative polymer and a cyclodextrin polymer |
US11655593B2 (en) | 2018-07-12 | 2023-05-23 | Kemira Oyj | Method for manufacturing multi-layered fibrous web and multi-layered fibrous web |
JP6744589B2 (ja) * | 2018-07-13 | 2020-08-19 | 荒川化学工業株式会社 | 製紙用歩留剤の希釈液の製造方法 |
WO2021130411A1 (en) * | 2019-12-23 | 2021-07-01 | Kemira Oyj | Composition and its use for use in manufacture of paper, board or the like |
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- 2005-12-28 JP JP2006550831A patent/JP4940952B6/ja not_active Expired - Fee Related
- 2005-12-28 US US11/794,336 patent/US7776181B2/en not_active Expired - Fee Related
- 2005-12-28 WO PCT/JP2005/024023 patent/WO2006070853A1/ja active Application Filing
- 2005-12-28 EP EP05844841A patent/EP1835074A4/en not_active Withdrawn
- 2005-12-28 KR KR1020077014846A patent/KR20070089832A/ko not_active Withdrawn
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CN102644214A (zh) * | 2012-04-12 | 2012-08-22 | 华南理工大学 | 聚丙烯酰胺/埃洛石纳米管复合物造纸填料的制备方法与应用 |
WO2014199996A1 (ja) * | 2013-06-13 | 2014-12-18 | 栗田工業株式会社 | 製紙用添加剤及び製紙用添加剤の製造方法並びに紙の製造方法 |
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Also Published As
Publication number | Publication date |
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EP1835074A1 (en) | 2007-09-19 |
JP4940952B6 (ja) | 2018-06-27 |
EP1835074A4 (en) | 2010-04-07 |
JP4940952B2 (ja) | 2012-05-30 |
JPWO2006070853A1 (ja) | 2008-06-12 |
US7776181B2 (en) | 2010-08-17 |
KR20070089832A (ko) | 2007-09-03 |
US20080004405A1 (en) | 2008-01-03 |
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