GB905405A - Cation exchange process - Google Patents
Cation exchange processInfo
- Publication number
- GB905405A GB905405A GB9905/59A GB990559A GB905405A GB 905405 A GB905405 A GB 905405A GB 9905/59 A GB9905/59 A GB 9905/59A GB 990559 A GB990559 A GB 990559A GB 905405 A GB905405 A GB 905405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- acrylonitrile
- copolymers
- cation
- vinylidene cyanide
- 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
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
- C08F8/44—Preparation of metal salts or ammonium salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/12—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
- B01J47/127—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes in the form of filaments or fibres
-
- 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
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
-
- 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
- C08F2810/00—Chemical modification of a polymer
- C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Weak acid cation-exchange resins are made by treating a high molecular weight organic nitrile-containing polymer with a hydrolytic agent to convert at least some of the nitrile groups into carboxylic acid groups. Polymers specified are homopolymers of acrylonitrile, methacrylonitrile, ethacrylonitrile, fumaryl dinitrile and vinylidene cyanide, and copolymers of such monomers, e.g. copolymers of acrylonitrile with vinyl chloride, acrylic acid or methacrylic acid and a copolymer of vinylidene cyanide and vinyl acetate cross-linked with diphenylmethane diisocyanate. As a hydrolytic agent there is specified aqueous sulphuric acid of 50-70% strength. The final cation-exchange product is in fibrous form, the formation of fibres taking place either before or after the hydrolysis reaction. The products are able to combine with free bases such as ammonia, pyridine and streptomycin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76502858A | 1958-10-03 | 1958-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB905405A true GB905405A (en) | 1962-09-05 |
Family
ID=25072438
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9905/59A Expired GB905405A (en) | 1958-10-03 | 1959-06-30 | Cation exchange process |
GB22432/59A Expired GB905404A (en) | 1958-10-03 | 1959-06-30 | Weak cation exchange resins |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22432/59A Expired GB905404A (en) | 1958-10-03 | 1959-06-30 | Weak cation exchange resins |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE579309A (en) |
FR (1) | FR1237346A (en) |
GB (2) | GB905405A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2249443C2 (en) * | 1972-10-09 | 1984-11-15 | Cassella Ag, 6000 Frankfurt | Water-soluble copolymers containing sulfonic acid groups and their use as textile auxiliaries |
-
1959
- 1959-06-03 BE BE579309A patent/BE579309A/en unknown
- 1959-06-30 GB GB9905/59A patent/GB905405A/en not_active Expired
- 1959-06-30 GB GB22432/59A patent/GB905404A/en not_active Expired
- 1959-07-22 FR FR800827A patent/FR1237346A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE579309A (en) | 1959-10-01 |
GB905404A (en) | 1962-09-05 |
FR1237346A (en) | 1960-11-25 |
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