[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB1086323A - Derivative of carboxy methyl cellulose - Google Patents

Derivative of carboxy methyl cellulose

Info

Publication number
GB1086323A
GB1086323A GB2840463A GB2840463A GB1086323A GB 1086323 A GB1086323 A GB 1086323A GB 2840463 A GB2840463 A GB 2840463A GB 2840463 A GB2840463 A GB 2840463A GB 1086323 A GB1086323 A GB 1086323A
Authority
GB
United Kingdom
Prior art keywords
carboxymethyl cellulose
derivative
water
sodium carboxymethyl
groups
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
GB2840463A
Inventor
Leslie Rose
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB2840463A priority Critical patent/GB1086323A/en
Publication of GB1086323A publication Critical patent/GB1086323A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/10—Crosslinking of cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

A water-insoluble derivative of carboxymethyl cellulose is made by adjusting the pH of a salt-contaminated sodium carboxymethyl cellulose to 4.5-5.5, thereby generating a plurality of free carboxyl groups, heating the sodium carboxymethyl cellulose at a temperature in excess of 100 DEG C. to condense hydroxyl groups with a sufficient proportion of the free carboxylic acid groups to render the derivative insoluble in water, and washing the derivative in water. The heating temperature is preferably 115-130 DEG C. The insolubilization resulting from the formation of intermolecular or intra-molecular ester groups, enables the sodium carboxymethyl cellulose to be freed from by-products formed in its synthesis, by water-washing only, without use of alcohol. The insolubilized material may be stored as such or may be treated with heated caustic soda solution to form a solution of purified sodium carboxymethyl cellulose
GB2840463A 1963-07-18 1963-07-18 Derivative of carboxy methyl cellulose Expired GB1086323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2840463A GB1086323A (en) 1963-07-18 1963-07-18 Derivative of carboxy methyl cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2840463A GB1086323A (en) 1963-07-18 1963-07-18 Derivative of carboxy methyl cellulose

Publications (1)

Publication Number Publication Date
GB1086323A true GB1086323A (en) 1967-10-11

Family

ID=10275091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2840463A Expired GB1086323A (en) 1963-07-18 1963-07-18 Derivative of carboxy methyl cellulose

Country Status (1)

Country Link
GB (1) GB1086323A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200737A (en) * 1978-05-17 1980-04-29 International Playtex, Inc. Preparation of water-insoluble carboxymethyl cellulose absorbents
JPS5657719A (en) * 1979-10-16 1981-05-20 Asahi Chem Ind Co Ltd Preparation of pharmaceutical
US4340731A (en) * 1979-06-20 1982-07-20 Montedison S.P.A. Polycarboxyalkyl-cellulose having high fluid absorbing and retaining properties, and process for preparing same
USRE31323E (en) * 1978-05-17 1983-07-26 International Playtex, Inc. Preparation of water-insoluble carboxymethyl cellulose absorbents
US4420611A (en) * 1982-03-18 1983-12-13 Hercules Incorporated Stabilization of irradiated carboxymethyl cellulose
US4521594A (en) * 1983-05-20 1985-06-04 Daicel Chemical Industries, Ltd. Process for producing sodium carboxymethylcellulose
EP0341745A1 (en) * 1988-05-13 1989-11-15 FIDIA S.p.A. Crosslinked carboxy polysaccharides
EP0538904A2 (en) * 1991-10-25 1993-04-28 Kimberly-Clark Corporation Carboxyalkyl polysaccharides and process for their preparation
EP0566118A1 (en) * 1992-04-17 1993-10-20 Kimberly-Clark Corporation Process for the preparation of modified polysaccharides and modified polysaccharides
WO1995011925A1 (en) * 1993-10-29 1995-05-04 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof
WO2001087365A2 (en) * 2000-05-15 2001-11-22 Kimberly-Clark Worldwide, Inc. Polysaccharide absorbent and method
US6790461B2 (en) 1997-08-22 2004-09-14 Denki Kagaku Kogyo Kabushiki Kaisha Hyaluronic acid gel, method of its production and medical material containing it
US7514097B1 (en) 1999-11-09 2009-04-07 Denki Kagaku Kogyo Kabushiki Kaisha Use of soluble cellulose derivative having been made hardly soluble in water and process for producing the same

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31323E (en) * 1978-05-17 1983-07-26 International Playtex, Inc. Preparation of water-insoluble carboxymethyl cellulose absorbents
US4200737A (en) * 1978-05-17 1980-04-29 International Playtex, Inc. Preparation of water-insoluble carboxymethyl cellulose absorbents
US4340731A (en) * 1979-06-20 1982-07-20 Montedison S.P.A. Polycarboxyalkyl-cellulose having high fluid absorbing and retaining properties, and process for preparing same
JPS6354693B2 (en) * 1979-10-16 1988-10-28 Asahi Chemical Ind
JPS5657719A (en) * 1979-10-16 1981-05-20 Asahi Chem Ind Co Ltd Preparation of pharmaceutical
US4420611A (en) * 1982-03-18 1983-12-13 Hercules Incorporated Stabilization of irradiated carboxymethyl cellulose
US4521594A (en) * 1983-05-20 1985-06-04 Daicel Chemical Industries, Ltd. Process for producing sodium carboxymethylcellulose
EP0614914A2 (en) * 1988-05-13 1994-09-14 FIDIA S.p.A. Crosslinked carboxy polysaccharides
EP0341745A1 (en) * 1988-05-13 1989-11-15 FIDIA S.p.A. Crosslinked carboxy polysaccharides
WO1989010941A1 (en) * 1988-05-13 1989-11-16 Fidia S.P.A. Cross-linked carboxy polysaccharides
AU631125B2 (en) * 1988-05-13 1992-11-19 Fidia S.P.A. Cross-linked hyalonic acid ester polysaccharides
US5676964A (en) * 1988-05-13 1997-10-14 Fidia, S.P.A. Crosslinked carboxy polysaccharides
EP0614914A3 (en) * 1988-05-13 1994-12-28 Fidia Spa Crosslinked carboxy polysaccharides.
EP0538904A2 (en) * 1991-10-25 1993-04-28 Kimberly-Clark Corporation Carboxyalkyl polysaccharides and process for their preparation
EP0538904A3 (en) * 1991-10-25 1993-10-13 Kimberly-Clark Corporation Carboxyalkyl polysaccharides and process for their preparation
EP0566118A1 (en) * 1992-04-17 1993-10-20 Kimberly-Clark Corporation Process for the preparation of modified polysaccharides and modified polysaccharides
US5550189A (en) * 1992-04-17 1996-08-27 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof
WO1995011925A1 (en) * 1993-10-29 1995-05-04 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof
US6790461B2 (en) 1997-08-22 2004-09-14 Denki Kagaku Kogyo Kabushiki Kaisha Hyaluronic acid gel, method of its production and medical material containing it
US7514097B1 (en) 1999-11-09 2009-04-07 Denki Kagaku Kogyo Kabushiki Kaisha Use of soluble cellulose derivative having been made hardly soluble in water and process for producing the same
WO2001087365A2 (en) * 2000-05-15 2001-11-22 Kimberly-Clark Worldwide, Inc. Polysaccharide absorbent and method
WO2001087365A3 (en) * 2000-05-15 2002-04-11 Kimberly Clark Co Polysaccharide absorbent and method

Similar Documents

Publication Publication Date Title
GB1086323A (en) Derivative of carboxy methyl cellulose
GB1042864A (en) Gel-forming polysaccharide derivatives and their preparation
ES224006A1 (en) Preparation of phthalic anhydride
GB856158A (en) Improvements in or relating to the production of coloured photographic images
GB1177749A (en) Improvements in the Manufacture of Partially Acylated Cellulose Film or Fibre
GB785051A (en) Purification of terephthalic acid
GB975601A (en) Derivatives of 14-hydroxynorcodeine and their production
GB1329534A (en) Purification of esters
GB226309A (en) Improvements in the manufacture of cellulose acetate
ES396457A1 (en) A procedure for the production of a starch hydrolysed. (Machine-translation by Google Translate, not legally binding)
ES403313A1 (en) Procedure for obtaining a new derivative of the 3,4,5 trimetoxibenzoic acid and its salts. (Machine-translation by Google Translate, not legally binding)
GB348255A (en) Improvements in or relating to manufacture or production of alkali salts of organic acids
ES326359A1 (en) A procedure for the preparation of a new iodine vegetable protein. (Machine-translation by Google Translate, not legally binding)
GB633681A (en) Process for synthesising vinyl esters of carboxylic acids
GB1249037A (en) A process for the production of a sheet material having a shammying effect
GB520493A (en) Improvements in or relating to the manufacture of artificial filaments, yarns, foilsand similar materials made of cellulose or cellulose derivatives
ES339215A1 (en) Improvements in the Production of Detergent Compositions
ES413441A1 (en) A process of production of the crystalline form and relatively insoluble in cephalexin monohydrate water. (Machine-translation by Google Translate, not legally binding)
GB868478A (en) Synthesis of deserpidine
GB855504A (en) Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids
FR2318629A2 (en) Analgesic indole deriv. - i.e. (2)-methyl (3)-para chloro-benzoyl (6)-dimethyl-amino (1)-indolyl acetic acid
ES222290A1 (en) A procedure for epoxidating esters of non-saturated aliphatic acids (Machine-translation by Google Translate, not legally binding)
ES361743A1 (en) New procedure for preparing amidas, hydracides and esters. (Machine-translation by Google Translate, not legally binding)
ES328522A1 (en) Procedure to obtain triperpenic acids and their salts from waste and agricultural subproducts. (Machine-translation by Google Translate, not legally binding)
FR2385740A1 (en) Starch esterification with organic acid - by heating under dry conditions, opt. with salt addn., to improve freeze-thaw cycle stability (OE 15.7.77)