GB715221A - Improvements in or relating to piperylene synthetic rubber - Google Patents
Improvements in or relating to piperylene synthetic rubberInfo
- Publication number
- GB715221A GB715221A GB5879/52A GB587952A GB715221A GB 715221 A GB715221 A GB 715221A GB 5879/52 A GB5879/52 A GB 5879/52A GB 587952 A GB587952 A GB 587952A GB 715221 A GB715221 A GB 715221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piperylene
- chloride
- olefin
- butene
- 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
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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
Olefin-piperylene copolymers are prepared by cooling to below -75 DEG C. a mixture containing an olefin containing from 4 to 8 carbon atoms and 35 or more percent. of piperylene, and adding thereto a dissolved Friedel-Crafts polymerization catalyst. Modifiers such as butene-1, butene-2, trimethylethylene and diisobutylene may also be present in amounts from 5 to 40 per cent. by weight of the mixture. Isobutylene is the preferred olefin. Specified catalysts are aluminium chloride or bromide, boron trifluoride, titanium tetrafluoride and zirconium chloride in methyl or ethyl chloride, methylene or ethylene dichloride, chloroform, propyl chloride, and ethylidene fluoride. A diluent such as liquid ethane, propane, butane, hexane, heptane, difluorodichloromethane, fluoro-trichloromethane, tetrafluorodichloroethane, carbon disulphide and carbon dioxide may be used. The process may be by batch or continuous. An inhibitor, e.g. phenyl-b -naphthylamine or 2, 6-ditertiarybutyl-4-methyl phenol, may be added before purification while the copolymer may be compounded and vulcanized in the usual manner.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US715221XA | 1951-09-04 | 1951-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB715221A true GB715221A (en) | 1954-09-08 |
Family
ID=22101865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5879/52A Expired GB715221A (en) | 1951-09-04 | 1952-03-06 | Improvements in or relating to piperylene synthetic rubber |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB715221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1720833A1 (en) * | 1966-06-09 | 1971-07-22 | Goodyear Tire & Rubber | Process for producing a plastic by copolymerizing piperylene and 2-methyl-2-butene |
-
1952
- 1952-03-06 GB GB5879/52A patent/GB715221A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1720833A1 (en) * | 1966-06-09 | 1971-07-22 | Goodyear Tire & Rubber | Process for producing a plastic by copolymerizing piperylene and 2-methyl-2-butene |
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