Terpolymer having aliphatic polyester, polysiloxane and polycarbonate
US5608026A · kind A · utility
45Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Mar 2, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Mar 2, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/448
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Block condensation copolymers with improved processability, low temperature impact strength and solvent resistance have a polysiloxane block such as ##STR1## where D is about 10 to 120, and a polycarbonate-aliphatic polyester block. Such polymers are made by an interfacial reaction of phosgene with a bisphenol, a phenol-terminated siloxane, and an aliphatic dicarboxylic acid salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.