Polycarbonate-base flame-retardant resin composition
US6512077B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Jul 11, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L85/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a flame retardant polycarbonate resin composition, which comprises 50 to 98 parts by weight of an aromatic polycarbonate (A), 0.1 to 49 parts by weight of a copolymer (B) comprising an aromatic vinyl monomer unit (b-1) and a vinyl cyanide monomer unit (b-2), 0.5 to 30 parts by weight of a cyanide-containing, graft copolymer (C) obtained by copolymerizing an aromatic vinyl compound (c-1) and a vinyl cyanide compound (c-2) in the presence of a rubbery polymer (c-3), 0.5 to 30 parts by weight of a (meth)acrylate-containing, graft copolymer (D) obtained by copolymerizing an aromatic vinyl compound (d-1) and an alkyl (meth)acrylate (d-2) in the presence of a rubbery butadiene polymer (d-3), and 0.1 to 30 parts by weight of at least one organic phosphorus compound oligomer (E), wherein the total amount of the components (A), (B), (C) and (D) is 100 parts by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.