High-impact vinylaromatic polymer obtained from a rubber bearing a group which generates a stable free radical
US6255402A · kind A · utility
16Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Sep 18, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing a composition comprising a vinylaromatic polymer matrix and particles of rubber, which comprises a step of polymerizing at least one vinylaromatic monomer in the presence of a rubber comprising a group which generates a stable free radical. The process makes it possible to obtain morphologies other than salami morphologies, such as the labyrinth, onion or capsule morphology, with the aim, for example, of enhancing the gloss of the high-impact vinylaromatic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.