Composition comprising a vinylaromatic polymer and a rubber and process for obtaining it
US5708081A · kind A · utility
3Cited by
0References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1995 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Jun 12, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F279/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to polymer compositions of high impact strength, comprising a vinylaromatic polymer and a rubber, and to a process for their manufacture. These compositions are obtained by virtue of the use of two polybutadienes whose viscosities, measured at 25.degree. C. at a concentration of 5% in styrene, are, respectively, between 120 and 350 centipoises in the case of one and between 30 and 90 centipoises in the case of the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.