GB490792A - Improvements in rubber compositions - Google Patents
Improvements in rubber compositionsInfo
- Publication number
- GB490792A GB490792A GB17466/37A GB1746637A GB490792A GB 490792 A GB490792 A GB 490792A GB 17466/37 A GB17466/37 A GB 17466/37A GB 1746637 A GB1746637 A GB 1746637A GB 490792 A GB490792 A GB 490792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- parts
- mix
- composition
- sulphur
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A flexible hard rubber composition is made by vulcanizing a mix comprising rubber, sulphur in amount sufficient to render the rubber vulcanizable to hard rubber, and an elastic high molecular weight polymer of a purely aliphatic mono-olefin having a branched carbon chain. The mix should preferably contain at least 40 parts of polymer and 30 parts of sulphur per 100 parts of rubber. The polymers may be made by the action of boron trifluoride on the mono-olefines, e.g. isobutylene; they should have a molecular weight of at least 5,000 and preferably 150,000. The composition may be used for making moulded articles and for lining or covering metal articles such as tanks, pipes, &c. with or without an intermediate layer of soft rubber. Specification 479,478 is referred to.ALSO:A flexible hard rubber composition is made by vulcanizing a mix comprising rubber, sulphur in amount sufficient to render the rubber vulcanizable to hard rubber, and an elastic high molecular weight polymer of a purely aliphatic mono-olefin having a branched carbon chain. The mix should preferably contain at least 40 parts of polymer and 30 parts of sulphur per 100 parts of rubber. The polymers may be made by the action of boron trifluoride on the mono-olefines, e.g. isobutylene; they should have molecular weights of at least 5,000 and preferably 150,000. The composition may be used for making moulded articles and for lining or covering metal articles such as tanks, pipes, &c., with or without an intermediate layer of soft rubber. Specification 479,478 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US490792XA | 1936-06-24 | 1936-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490792A true GB490792A (en) | 1938-08-22 |
Family
ID=21957938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17466/37A Expired GB490792A (en) | 1936-06-24 | 1937-06-23 | Improvements in rubber compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB490792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350621A (en) | 1977-09-09 | 1982-09-21 | Dunlop Limited | Elastomer compositions for tire tread |
-
1937
- 1937-06-23 GB GB17466/37A patent/GB490792A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350621A (en) | 1977-09-09 | 1982-09-21 | Dunlop Limited | Elastomer compositions for tire tread |
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