Flame-resistant thermostable polycarbonate ABS moulding materials
US6566428B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L27/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flame-resistant, thermoplastic molding composition characterized by its improved stress cracking resistance, notched impact strength and heat resistance is disclosed. The composition containsA) an aromatic polycarbonate or polyestercarbonate,B) a graft polymer of B.1 5 to 95 wt. % of one or more vinyl monomers on B.2 5 to 95 wt. % of one or more graft substrates with a glass transition temperature below 10° C. and an average particle size (d50 value) of 0.05 to 5 &mgr;m,C) 0 to 50 parts by weight of a thermoplastic vinyl copolymer,D) 0.5 to 20 parts by weight of at least one phosphorus compound of the general formula (I) and optionally at least one further phosphorus compound which differs from compounds of the formula (I), andE) 0.05 to 5 parts by weight of a fluorinated polyolefin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.