Low toxicity fire retardant thermoplastic material
US5017637A · kind A · utility
Inventors
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A fire-retardant thermoplastic compound that can be used as compound or further enhanced through chemical cross linkage. The compounding thereof and the composition are disclosed. The compound is manufactured from a composition of a copolymer or terpolymer with a carboxylic acid comonomer and optionally a low modulus polymer and a synthetic hydrocarbon elastomer with or without a graft of ethylenically unsaturated carboxylic acid or anhydride. A fire retardant additive comprising a group I, group II or group III metal oxide hydrate with the proviso that at least 1% by weight of the composition is in the form of an organopolysiloxane. The compound may be used for sheet or wire extrusion and for injection or compression molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.