Glass filled polyester compositions with improved color stability
US6187848A · kind A · utility
4Cited by
29References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5393
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester molding composition reinforced with fiber glass or other silica based filler which has color stability at relatively high temperatures and comprises (a) from 40 to 97 weight percent of a polyester resin; (b) from about 3 to about 60 weight percent fibrous glass or silica based filler or mixture; (c) less than about 5 percent by weight additional ingredients which include a combination of stabilizers consisting essentially of an acidic quencher, a thioester and a phosphonite and (d) optionally from 2 to 30 weight percent of a flame retarding composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.