Rubber composition having high modulus of elasticity and process for preparing same
US4380607A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1981 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Apr 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L21/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rubber composition consisting essentially of a dispersion in which particles of a high-melting isotactic poly-.alpha.-olefin having a melting point of at least 150.degree. C. are uniformly dispersed in a rubber matrix, said particles having an average particle size of not more than 200.mu., has a high modulus of elasticity and also excellent tear resistance. Such rubber composition can be obtained, for example, by mixing fine powder of said isotactic poly-.alpha.-olefin having an average particle size of not more than 200.mu. with a rubber solution, dispersing the particles uniformly in said rubber solution and recovering a rubber composition from the dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.