GB577350A - Improved process relating to the polymerisation of olefinic materials - Google Patents
Improved process relating to the polymerisation of olefinic materialsInfo
- Publication number
- GB577350A GB577350A GB857/43A GB85743A GB577350A GB 577350 A GB577350 A GB 577350A GB 857/43 A GB857/43 A GB 857/43A GB 85743 A GB85743 A GB 85743A GB 577350 A GB577350 A GB 577350A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dimethyl
- added
- hexatriene
- hexadiene
- butadiene
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
- C08F210/08—Butenes
- C08F210/10—Isobutene
- C08F210/12—Isobutene with conjugated diolefins, e.g. butyl rubber
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)
- Polymerisation Methods In General (AREA)
Abstract
In the low temperature polymerization of isoolefines with or without polyolefines, e.g. butadiene, isoprene, piperylene, 2,3-dimethyl-1,3 - butadiene, 2 - methyl - hexadiene - 1,5, 2,6 - dimethyl - hexadiene - 1,5, myrcene, hexatriene, 2,4,6 - trimethyl - 1,3,5 - hexatriene and 1,6 - dimethyl - heptatriene - 1,3,5 in the presence of Friedel-Crafts catalysts, a water-insoluble metal soap is added before or during polymerization, whereby the polymer or copolymer is obtained in a finely-divided non-adhesive condition. Suitable soaps are aluminium, magnesium, zinc or calcium stearates, caproates, caprylates, caprates, myristates, palmitates and laurates. They may be added to the monomeric mixture as powders or dissolved in methyl chloride. Alternatively, they may be added in solution or dispersion in the liquid used to quench the catalyst, e.g. isopropyl alcohol, ethyl ether, an organic acid or a ketone. The product is isolated by draining the mixture, applying a jet of high-pressure steam or rapidly warming the solid polymer to remove unreacted olefinic substances and washing with water. It may be compounded with zinc oxide, stearic acid, sulphur and tetramethyl thiuram disulphide and vulcanized by heat.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US577350XA | 1942-01-30 | 1942-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB577350A true GB577350A (en) | 1946-05-15 |
Family
ID=22012427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB857/43A Expired GB577350A (en) | 1942-01-30 | 1943-01-16 | Improved process relating to the polymerisation of olefinic materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB577350A (en) |
-
1943
- 1943-01-16 GB GB857/43A patent/GB577350A/en not_active Expired
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