Thermoplastic compositions, methods of making, and articles formed therefrom
US7709562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic composition comprises a polycarbonate having repeating structural carbonate units of the formula (1):wherein at least 60 percent of the total number of R1 groups contain aromatic organic groups and the balance thereof are aliphatic, alicyclic, or aromatic groups; and wherein the polycarbonate comprises terminal groups derived from reaction with a cyanophenol of the formulawherein Y is a halogen, C1-3 alkyl group, C1-3 alkoxy group, C7-12 arylalkyl, C7-12 alkylaryl, or nitro group, y is 0 to 4, and c is 1 to 5, provided that y+c is 1 to 5; optionally a branching agent; an impact modifier; and a flame retardant. The compositions are useful in the manufacture of a wide variety of parts, particularly those having a thin wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.