Composition of a selectively hydrogenated block copolymer of a vinyl aromatic compound and a diolefin, a polycarbonate and an amorphous polyester
US4267096A · kind A · utility
33Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Nov 9, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are provided compositions comprising (a) a selectively hydrogenated elastomeric block copolymer, (b) a polycarbonate and (c) an amorphous polyester. The use of the combination of (a) and (c) provides remarkable improvements in the melt flow characteristics, in resistance to brittle failure, and in the resistance to environmental stress crazing and cracking of the polycarbonate resin component (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.