Flameproof thermoplastic resin compositions
US5952408A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Feb 9, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to flameproof thermoplastic resin compositions comprising (A) a base resin comprising (1) 75 to 96% by weight of a thermoplastic, halogen-free polycarbonate, (2) 4 to 25% by weight of a styrene-containing graft copolymer, and (3) 0 to 10% by weight of a styrene-containing copolymer, (B) 5 to 20 parts by weight, per 100 parts by weight of the base resin (A), of a phosphate composition, and (C) 0.05 to 10 parts by weight, per 100 parts by weight of the base resin (A), of a zeolite. The addition of the zeolite component provides thermoplastic resin compositions with a good combination of physical properties, including improved long-term heat stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.