Flame retardant polymer with stable polymeric additive
US5227443A · kind A · utility
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6Claims
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Key dates
| Filing date | Dec 21, 1989 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Dec 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L55/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric compositions, such as thermoplastic molding compositions, are rendered flame retardant by blending the base polymer with a stable interpolymer prepared by copolymerizing a brominated monovinyl aromatic monomer, a methacrylic acid ester and, optionally, an ethylenically unsaturated nitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.