Self-extinguishing compositions based on ethylene/vinylacetate copolymers suitable for the preparation of foamed articles
US4666947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1984 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Nov 13, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K13/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions based on ethylene/vinylacetate copolymers provided with self-extinguishing properties and suitable for the preparation of foamed materials, comprising for 100 parts by weight of the EVA copolymers: PA0 from 5 to 10 parts by weight of at least a bromodiphenylether containing at least 3 bromine atoms; PA0 from 2 to 4 parts by weight of a metal oxide selected from antimony, bismuth and tungsten oxides; and PA0 from 0.1 to 1 part by weight of a compound having general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, equal or different from each other, can by hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 6 carbon atoms, cyclohexyl or phenyl radicals, the nitro group or the --CN group. R.sub.5, R.sub.6, equal or different, can be hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 3 carbon atoms, or alkoxy radicals containing 1 to 4 carbon atoms or ##STR2## groups, R.sub.7 being an alkyl radical containing from 1 to 3 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.