Polycarbonate-polysiloxane block copolymers
US6072011A · kind A · utility
75Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1994 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Nov 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Block copolymers suitable as molding resins are provided having polycarbonate blocks and polysiloxane blocks of the structure ##STR1## where R.sup.1, R.sup.2, Y and m are as defined herein, and where the weight percentage of blocks of polycarbonate blocks is from 92 to 96% and the weight percentage of siloxane from blocks of polysiloxane blocks is from 4 to 8%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.