GB731791A - Manufacture of polymerisation products - Google Patents
Manufacture of polymerisation productsInfo
- Publication number
- GB731791A GB731791A GB13783/50A GB1378350A GB731791A GB 731791 A GB731791 A GB 731791A GB 13783/50 A GB13783/50 A GB 13783/50A GB 1378350 A GB1378350 A GB 1378350A GB 731791 A GB731791 A GB 731791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butyl
- peroxide
- ethyl
- esters
- methyl
- 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
- C08F218/00—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
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/34—Polymerisation in gaseous state
Landscapes
- 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
Distillable liquid homo- or copolymers consisting of, or comprising, halogen-free vinyl esters, acrylic or methacrylic acid esters, are made by polymerizing the monomeric mixture in the gaseous state, at a pressure of up to 8 atmospheres and a temperature of 200-300 DEG C. in the presence of a catalyst which is gaseous at the polymerization temperature. Specified esters are vinyl formate, acetate, propionate, butyrate and benzoate, methyl, ethyl, or propyl acrylate, and methyl, ethyl, propyl, or butyl methacrylate. Catalysts mentioned are di-t.-butyl peroxide, di-t.-amyl peroxide, t.-butyl-pentamethylethyl peroxide, and t.-butyl hydroperoxide. The polymers may be used as solvents and plasticizers, e.g. for vinyl chloride polymers.ALSO:Distillable liquid homopolymers, e.g. having a degree of polymerization between 2 and 6, and copolymers consisting of one or more halogen-free vinyl esters, acrylic or methacrylic acid esters are made by polymerizing the monomeric mixture in the gaseous state, at a pressure up to 8 atmospheres and a temperature of 200-300 DEG C. in the presence of a catalyst which is gaseous at the polymerization temperature. Specified esters are vinyl formate, acetate, propionate, butyrate and benzoate, methyl, ethyl, or propyl acrylate, and methyl, ethyl, propyl or butyl methacrylate. Catalysts mentioned are di-t-butyl peroxide, di-t-amyl peroxide, t-butyl-pentamethyl-ethyl peroxide and t-butyl hydroperoxide. The polymers may be used as solvents and plasticizers, e.g. for vinyl chloride polymers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE731791X | 1949-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB731791A true GB731791A (en) | 1955-06-15 |
Family
ID=6638575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13783/50A Expired GB731791A (en) | 1949-06-10 | 1950-06-01 | Manufacture of polymerisation products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB731791A (en) |
-
1950
- 1950-06-01 GB GB13783/50A patent/GB731791A/en not_active Expired
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