GB788987A - Production of water-soluble aromatic resin sulphonates - Google Patents
Production of water-soluble aromatic resin sulphonatesInfo
- Publication number
- GB788987A GB788987A GB1678156A GB1678156A GB788987A GB 788987 A GB788987 A GB 788987A GB 1678156 A GB1678156 A GB 1678156A GB 1678156 A GB1678156 A GB 1678156A GB 788987 A GB788987 A GB 788987A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vinyl toluene
- sulphur dioxide
- sulphonates
- liquid sulphur
- water
- 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
- C08F8/34—Introducing sulfur atoms or sulfur-containing groups
- C08F8/36—Sulfonation; Sulfation
-
- 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
- C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
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
Water-soluble resin sulphonates are obtained by reacting copolymers of vinyl toluene dispersed in liquid sulphur dioxide with at least 0.7 molecular equivalent of sulphur trioxide per molecular equivalent of vinyl toluene, at a temperature of not higher than 40 DEG C. The copolymers contain at least 60 per cent by weight of vinyl toluene chemically combined with an olefinic compound containing a carbonyl or carbonyloxy group in the molecule, e.g. maleic anhydride, dimethyl and diethyl maleates, methyl isopropenyl ketone, acrylic and methacrylic acids and methyl, ethyl, and propyl acrylates and methacrylates or mixtures thereof. The reactants may be admixed before or during the reaction, which may be made continuous, at a pressure sufficient to maintain a dispersion of unreacted copolymer in liquid sulphur dioxide. The product precipitates as small granules which may be separated and washed with liquid sulphur dioxide which is removed by vaporization. Salts may be prepared by neutralizing with alkalis such as ammonia and sodium and potassium hydroxide, solutions of which may be used as sizing agents. Specification 746,616 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1678156A GB788987A (en) | 1956-05-30 | 1956-05-30 | Production of water-soluble aromatic resin sulphonates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1678156A GB788987A (en) | 1956-05-30 | 1956-05-30 | Production of water-soluble aromatic resin sulphonates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB788987A true GB788987A (en) | 1958-01-08 |
Family
ID=10083554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1678156A Expired GB788987A (en) | 1956-05-30 | 1956-05-30 | Production of water-soluble aromatic resin sulphonates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB788987A (en) |
-
1956
- 1956-05-30 GB GB1678156A patent/GB788987A/en not_active Expired
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