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GB590684A - Improvements in the production of phenolic condensation products and treatment of materials therewith - Google Patents

Improvements in the production of phenolic condensation products and treatment of materials therewith

Info

Publication number
GB590684A
GB590684A GB7374/44A GB737444A GB590684A GB 590684 A GB590684 A GB 590684A GB 7374/44 A GB7374/44 A GB 7374/44A GB 737444 A GB737444 A GB 737444A GB 590684 A GB590684 A GB 590684A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
temperature
amount
catalyst
per cent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB7374/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tootal Broadhurst Lee Co Ltd
Original Assignee
Tootal Broadhurst Lee Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tootal Broadhurst Lee Co Ltd filed Critical Tootal Broadhurst Lee Co Ltd
Priority to CH258849D priority Critical patent/CH258849A/en
Publication of GB590684A publication Critical patent/GB590684A/en
Expired legal-status Critical Current

Links

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
    • 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
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28—Chemically modified polycondensates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/41—Phenol-aldehyde or phenol-ketone resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Paper (AREA)

Abstract

A stable semicondensate suitable for impregnating paper (see Group VIII) is made by mixing a phenol with an aqueous solution of formaldehyde in presence of an amount of caustic alkali acting as catalyst for the condensation which is not less than 3 per cent of caustic soda or than the equivalent amount of other caustic alkali (calculated on the weight of material in the mixture other than water), such conditions of heat conservation and concentration of formaldehyde being employed that the reaction mixture can heat itself to a temperature of at least 65 DEG C., and the reaction is interrupted after a temperature of 50 DEG C. has been reached but before a temperature of 65 DEG C. has been exceeded and while the reaction mixture, when containing an amount of water corresponding to the use of 40 per cent formaldehyde in the condensation, has a viscosity of 12-30 centipoises measured at 20 DEG C. The reaction is preferably interrupted when the viscosity at 20 DEG C. is 12-16 centipoises, or when the temperature is 57-62 DEG C. or 59-61 DEG C., and the interruption may be effected by dilution or by neutralization of the catalyst. The catalyst is preferably caustic soda in an amount of 3-7 per cent based on the weight of materials other than water in the reaction mixture. Examples describe the preparation of condensates from formaldehyde and phenol, m- or p-cresol, or o-chlorophenol in presence of caustic soda, and the addition of solutions or emulsions of the partly-neutralized condensates formed with gum arabic and gum tragacanth to paper pulp, e.g. wood pulp, or paper web. Specifications 467,081, 467,899 and 553,122, [Group VIII], are referred to.
GB7374/44A 1944-10-12 1945-01-25 Improvements in the production of phenolic condensation products and treatment of materials therewith Expired GB590684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH258849D CH258849A (en) 1944-10-12 1945-04-11 Process for the preparation of stable, low molecular weight condensation products.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB121044X 1944-10-12
GB250145X 1945-01-25

Publications (1)

Publication Number Publication Date
GB590684A true GB590684A (en) 1947-07-25

Family

ID=26248776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7374/44A Expired GB590684A (en) 1944-10-12 1945-01-25 Improvements in the production of phenolic condensation products and treatment of materials therewith

Country Status (1)

Country Link
GB (1) GB590684A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914315A1 (en) * 1979-04-09 1980-10-16 Kemerowskij Nii Chim Promy Alkali(ne earth) hydroxide-catalysed phenoplast resol prodn. - with ammonium salt addn. on reaching given refractive index
FR2586691A1 (en) * 1985-08-30 1987-03-06 Perstorp Ab LOW-FREE PHENOL-PHENOL-FORMALDEHYDE RESIN, AND PROCESS FOR PRODUCING SUCH A RESIN

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914315A1 (en) * 1979-04-09 1980-10-16 Kemerowskij Nii Chim Promy Alkali(ne earth) hydroxide-catalysed phenoplast resol prodn. - with ammonium salt addn. on reaching given refractive index
FR2586691A1 (en) * 1985-08-30 1987-03-06 Perstorp Ab LOW-FREE PHENOL-PHENOL-FORMALDEHYDE RESIN, AND PROCESS FOR PRODUCING SUCH A RESIN

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