Polycarbonate molding compositions and articles with improved surface aesthetics
US6825266B2 · kind B2 · utility
3Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Feb 15, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic polymer molding composition useful for producing an article, where the molding composition comprises a polyorganosiloxane-polycarbonate block copolymer and a flow modifier; wherein the flow modifier is at least one selected from the group consisting of a polyalkylene glycol, a low weight average molecular weight polycarbonate polymer, or mixtures thereof; and further wherein the flow modifier reduces surface imperfections when molded into the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.