C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/1101, 400/17
C08K 3/26 (2006.01) C08K 3/00 (2006.01) C08K 5/02 (2006.01) C08K 5/56 (2006.01) C08K 13/02 (2006.01) C08L 23/02 (2006.01) C08L 25/06 (2006.01)
Patent
CA 1081388
ABSTRACT OF THE DISCLOSURE The present invention relates to new polyolefinic compositions suited for producing self-extinguishing articles, and more particularly, compositions consisting of polymers or copolymers of ethylene and/or of alpha-olefins or of polymers of styrene containing special flame-extinguishing agents. The polyolefinic compositions of this invention comprise (1) a polyolefin selected from the group consisting of polymers and copolymers of ethylene and/or alpha-olefins and styrene polymers; (2) a mixture of (a) a bismuth compound selected from the group consisting of basic bismuth carbonate and triphenyl-bismuthine and (b) a partially halogenated organic compound, thermally unstable, which on heating decomposes with formation of the corresponding hydrogen halide; component (a) being present in such an amount as to have a bismuth content in the composition lower than 5% by weight, and more particularly from 0.5% to 3% by weight, while component (b) is present in an amount from 1% to 10% by weight of the composition.
238519
Bertelli Guido
Roma Pierpaolo
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