GB771478A - Process for the manufacture of water-insoluble nitrogen-containing polymerisation products - Google Patents

Process for the manufacture of water-insoluble nitrogen-containing polymerisation products

Info

Publication number
GB771478A
GB771478A GB3085053A GB3085053A GB771478A GB 771478 A GB771478 A GB 771478A GB 3085053 A GB3085053 A GB 3085053A GB 3085053 A GB3085053 A GB 3085053A GB 771478 A GB771478 A GB 771478A
Authority
GB
United Kingdom
Prior art keywords
water
anhydride
manufacture
insoluble nitrogen
polymerisation products
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
GB3085053A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB771478A publication Critical patent/GB771478A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Polyacrylamide and copolymers of acrylamide with acrylonitrile are rendered insoluble in water by heating under exclusion of air, in the presence of non-oxidizing vapours or gases, or in the presence of a carboxylic anhydride at a temperature of 139 DEG C. or more. The anhydride may be acetic anhydride or a mixed anhydride of acetic acid and caproic acid, and when heating in the presence of an anhydride the polymer may be swollen with a solvent such as water, formic acid or acetic acid. Heating under exclusion of air may be effected in an inert liquid such as ethyl hexanol or water. The product may be subsequently treated with formaldehyde.
GB3085053A 1952-11-08 1953-11-06 Process for the manufacture of water-insoluble nitrogen-containing polymerisation products Expired GB771478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW16610A DE1013871B (en) 1952-11-08 1952-11-08 Process for the production of nitrogen-containing, water-insoluble polymers

Publications (1)

Publication Number Publication Date
GB771478A true GB771478A (en) 1957-04-03

Family

ID=7595795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3085053A Expired GB771478A (en) 1952-11-08 1953-11-06 Process for the manufacture of water-insoluble nitrogen-containing polymerisation products

Country Status (3)

Country Link
DE (1) DE1013871B (en)
FR (1) FR1083991A (en)
GB (1) GB771478A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124244B (en) * 1959-09-08 1962-02-22 Bayer Ag Process for the production of solid, water-soluble polyacrylamides with high molecular weights by precipitation polymerization

Also Published As

Publication number Publication date
FR1083991A (en) 1955-01-14
DE1013871B (en) 1957-08-14

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