Preparation of copolymer from carboxy-functionalized polycarbonate and nucleophilic polymer
US4959411A · kind A · utility
6Cited by
1References
10Claims
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Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Carboxy-functionalized polycarbonates are prepared by incorporating a carboxylic acid-substituted phenol, preferably t-butyl p-hydroxybenzoate, as a chainstopper in a polycarbonate-forming reaction. The products are capable of forming copolymers with other polymers such as polyamides and functionalized olefin polymers, by generation of a carboxy group which reacts therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.