GB770322A - Improvements in cation-exchange resins - Google Patents
Improvements in cation-exchange resinsInfo
- Publication number
- GB770322A GB770322A GB24375/54A GB2437554A GB770322A GB 770322 A GB770322 A GB 770322A GB 24375/54 A GB24375/54 A GB 24375/54A GB 2437554 A GB2437554 A GB 2437554A GB 770322 A GB770322 A GB 770322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cross
- phenol
- acetone
- resorcinol
- phenols
- 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
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/19—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Cation exchange resins are made by introducing sulphonic acid groups into the benzene rings of a resin formed by reacting epichlorhydrin, a dihydric phenol and a phenol containing three or more hydroxy groups as a cross-linking agent. Specified dihydric phenols include resorcinol, catechol, hydroquinone and dihydric phenols derived from acetone or formaldehyde and phenols, e.g. diphenylol propane. The cross-linking agents specified are phloroglucinol, pyrocatechol and tetrahydric phenols derived from acetone and catechol, hydroquinone or resorcinol, e.g. bis-(2,4-dihydroxy phenyl)-dimethyl methane, whilst additional cross-linking agents, e.g. polyamines such as diethylene triamine, bifunctional compounds such as glyoxal, succinic acid, dichloromethyl ether, hexamethylene di-isocyanate and water soluble resins of the urea-, melamine- and phenol-formaldehyde types may be included. Sulphonic acid groups can be introduced into the cross-linked resin by sulphuric acid or oleum. In the example, a tetrahydric phenol prepared from resorcinol and acetone is mixed with diphenylol propane and epichlorhydrin and heated in caustic soda solution to solidification. The solid is dried, broken up and sulphonated with sulphuric acid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24375/54A GB770322A (en) | 1954-08-20 | 1954-08-20 | Improvements in cation-exchange resins |
| DEP14688A DE1131020B (en) | 1954-08-20 | 1955-08-19 | Process for the production of cation exchange resins based on epoxy compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24375/54A GB770322A (en) | 1954-08-20 | 1954-08-20 | Improvements in cation-exchange resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB770322A true GB770322A (en) | 1957-03-20 |
Family
ID=10210738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24375/54A Expired GB770322A (en) | 1954-08-20 | 1954-08-20 | Improvements in cation-exchange resins |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1131020B (en) |
| GB (1) | GB770322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1196160B (en) * | 1961-12-22 | 1965-07-08 | Bayer Ag | Process for the production of anion exchange membranes, consisting of an anion exchange resin and a support fabric |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR839668A (en) * | 1937-07-13 | 1939-04-07 | Ig Farbenindustrie Ag | Process for reducing the swelling of synthetic phenol resins |
| BE436046A (en) * | 1938-08-23 | |||
| US2469684A (en) * | 1946-03-16 | 1949-05-10 | American Cyanamid Co | Anion active resins and processes of producing the same |
-
1954
- 1954-08-20 GB GB24375/54A patent/GB770322A/en not_active Expired
-
1955
- 1955-08-19 DE DEP14688A patent/DE1131020B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1196160B (en) * | 1961-12-22 | 1965-07-08 | Bayer Ag | Process for the production of anion exchange membranes, consisting of an anion exchange resin and a support fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1131020B (en) | 1962-06-07 |
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