Copolycarbonate-polyesters, methods of manufacture, and uses thereof
US7495066B2 · kind B2 · utility
8Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A copolycarbonate-polyester, comprising units of formulawherein at least 60 percent of the total number of R1 groups are divalent aromatic organic radicals and the balance thereof are divalent aliphatic or alicyclic radicals; units of formulawherein T is a C7-20 divalent alkyl aromatic radical or a C6-20 divalent aromatic radical, and D is a divalent C6-20 aromatic radical; and units of the formulawherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or phenyl group, each c is independently 0 to 4, and T is as described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.