Flame retardant composition and method for use in synthetic thermoplastic resins
US5532302A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved flame-retardant composition and method for its use are provided. The composition imparts flame retardency to synthetic thermoplastic resins to prevent dripping of the melt of the resin when the resin is burnt. The composition comprises a flame retardant agent such as phosphate ester compound, optionally combined with a metal hydroxide, and an organopoly-siloxane-based graft copolymer of a (meth)acrylic acid ester such as methyl(meth)-acrylate. The flame retardant is used in an amount from 1-50 parts by weight per 100 parts by weight of the synthetic resin, and the graft copolymer provides 0.5 to 20 parts by weight of an organosilicone group per 100 parts by weight of the synthetic resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.