GB777484A - Manufacture of polymeric materials - Google Patents
Manufacture of polymeric materialsInfo
- Publication number
- GB777484A GB777484A GB2830854A GB2830854A GB777484A GB 777484 A GB777484 A GB 777484A GB 2830854 A GB2830854 A GB 2830854A GB 2830854 A GB2830854 A GB 2830854A GB 777484 A GB777484 A GB 777484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- ammonium
- polyvinyl acetate
- potassium
- manufacture
- 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
- C08F18/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F18/02—Esters of monocarboxylic acids
- C08F18/04—Vinyl esters
- C08F18/08—Vinyl acetate
-
- 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
- C08F261/00—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00
- C08F261/02—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols
- C08F261/04—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Aqueous dispersions of polyvinyl acetate are obtained by the catalytic polymerization of vinyl acetate in emulsion in the presence of polyvinyl acetate partially hydrolysed to at least 78 per cent and an alkali salt of polymethacrylic acid, e.g. the ammonium, sodium, potassium or triethanolamine salt. Catalysts specified are ammonium, sodium and potassium persulphates, peroxides and reduction-activation systems. Optional ingredients are alkalies, such as sodium carbonate, which ensure stability. In examples the ingredients are added continuously. The products are stable and of small particle size, e.g. 15 microns.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2830854A GB777484A (en) | 1954-10-01 | 1954-10-01 | Manufacture of polymeric materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2830854A GB777484A (en) | 1954-10-01 | 1954-10-01 | Manufacture of polymeric materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB777484A true GB777484A (en) | 1957-06-26 |
Family
ID=10273574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2830854A Expired GB777484A (en) | 1954-10-01 | 1954-10-01 | Manufacture of polymeric materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB777484A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5089570A (en) * | 1988-09-28 | 1992-02-18 | Hoechst Aktiengesellschaft | Organic dispersion polymers based on ethylenically unsaturated monomers which contain water-soluble graft polymers containing vinyl alcohol units having a polyurethane grafting base, processes for their preparation and their use |
-
1954
- 1954-10-01 GB GB2830854A patent/GB777484A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5089570A (en) * | 1988-09-28 | 1992-02-18 | Hoechst Aktiengesellschaft | Organic dispersion polymers based on ethylenically unsaturated monomers which contain water-soluble graft polymers containing vinyl alcohol units having a polyurethane grafting base, processes for their preparation and their use |
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