GB848368A - Hydrolysis process - Google Patents

Hydrolysis process

Info

Publication number
GB848368A
GB848368A GB2398358A GB2398358A GB848368A GB 848368 A GB848368 A GB 848368A GB 2398358 A GB2398358 A GB 2398358A GB 2398358 A GB2398358 A GB 2398358A GB 848368 A GB848368 A GB 848368A
Authority
GB
United Kingdom
Prior art keywords
hydrolysis
orientated
polyacrylonitrile
fibrous
liquor
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
GB2398358A
Inventor
Harold George Burrows
Malcolm Sandall
Stanley Minor Todd
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2398358A priority Critical patent/GB848368A/en
Publication of GB848368A publication Critical patent/GB848368A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical 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)

Abstract

Fibrous orientated polyacrylonitrile is hydrolysed by a process characterised in that the hydrolysis process is commenced employing at least 15 parts of aqueous alkaline hydrolysis liquor for each part of fibrous orientated polyacrylonitrile and in that the hydrolysis is conducted at substantially the boiling point of the hydrolysis liquor. The hydrolysis liquor may be an aqueous solution of potassium or sodium hydroxide, and may contain small amounts of surface active agents or water-miscible solvents such as ethyl alcohol. The products may be used as thickening, dispersing and flocculating agents.
GB2398358A 1958-07-25 1958-07-25 Hydrolysis process Expired GB848368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2398358A GB848368A (en) 1958-07-25 1958-07-25 Hydrolysis process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2398358A GB848368A (en) 1958-07-25 1958-07-25 Hydrolysis process

Publications (1)

Publication Number Publication Date
GB848368A true GB848368A (en) 1960-09-14

Family

ID=10204529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2398358A Expired GB848368A (en) 1958-07-25 1958-07-25 Hydrolysis process

Country Status (1)

Country Link
GB (1) GB848368A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337328A (en) * 1979-01-29 1982-06-29 Hoechst Aktiengesellschaft Acrylic polymers having a high swellability in water
EP0150302A2 (en) * 1983-12-03 1985-08-07 Wolff Walsrode Aktiengesellschaft Water swellable high molecular substances and their use as soil improving agent
DE3613207A1 (en) * 1986-04-18 1987-10-22 Akzo Gmbh COMPOSITION COMPOSED WITH WATER, THEIR PRODUCTION AND USE
CN112281471A (en) * 2020-11-02 2021-01-29 中国船舶重工集团公司第七一八研究所 Method for catalytically hydrolyzing polyacrylonitrile material under alkaline condition

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337328A (en) * 1979-01-29 1982-06-29 Hoechst Aktiengesellschaft Acrylic polymers having a high swellability in water
EP0150302A2 (en) * 1983-12-03 1985-08-07 Wolff Walsrode Aktiengesellschaft Water swellable high molecular substances and their use as soil improving agent
EP0150302A3 (en) * 1983-12-03 1986-02-19 Wolff Walsrode Aktiengesellschaft Water swellable high molecular substances and their use as soil improving agent
US4614780A (en) * 1983-12-03 1986-09-30 Wolff Walsrode Aktiengesellschaft High molecular weight water-swellable substances
DE3613207A1 (en) * 1986-04-18 1987-10-22 Akzo Gmbh COMPOSITION COMPOSED WITH WATER, THEIR PRODUCTION AND USE
US4795762A (en) * 1986-04-18 1989-01-03 Akzo Nv Water-swellable composition, synthesis and use thereof
CN112281471A (en) * 2020-11-02 2021-01-29 中国船舶重工集团公司第七一八研究所 Method for catalytically hydrolyzing polyacrylonitrile material under alkaline condition

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