Method of preparing polycarbonate-polysiloxane block copolymers
US5616674A · kind A · utility
26Cited by
6References
14Claims
0Family size
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Key dates
| Filing date | Sep 20, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Sep 20, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/448
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polycarbonate-polysiloxane block copolymers are prepared by interfacial polymerization technique in the presence or a phase transfer catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.