Tri or tetraesters of aliphatic monocarboxylic acids of 6 to 9 carbon atoms and pentaerythritol as mold releases for aromatic polycarbonates
US5210124A · kind A · utility
8Cited by
10References
3Claims
0Family size
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Key dates
| Filing date | Jul 22, 1991 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Jul 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/11
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprising an aromatic polycarbonate in admixture with a mold release effective amount of an ester of an aliphatic carboxylic acid of 6 to about 9 carbon atoms and a trihydric or tetrahydric alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.