Processing additive for halogen-containing polymers

Details Processing additive for halogen-containing polymers Processing additive for halogen-containing polymers

C - Chemistry, Metallurgy

08

K

31/71, 400/9338,

C08K 13/02 (2006.01) C07D 251/32 (2006.01) C08K 3/10 (2006.01) C08K 3/34 (2006.01) C08K 5/3477 (2006.01) C08L 27/06 (2006.01)

Patent

CA 2005821

Proposed is a processing additive for halogen-containing polymers, in particular for polyvinyl chloride, with a content of a synthetic, crystalline, finely particulate alkali metal alumo silicate containing 13 to 25 percent by weight of bound water, which - in its anhydrous form - is of the composition (0.7 - 1.1) Me2O.Al2O3 x (1.3 - 2.4) SiO2, Me standing for an alkali metal, wherein the alkali metal alumo silciate is present in combination with at least one isocyanuric acid derivative of the formula Image I wherein each n stands for an integer from 0 to 5, preferably from 0 to 3, each X represents H or a straight or branched alkyl group having 1 to 6 carbon atoms, preferably 1 or 2 carbon atoms, and each R is -OH or -COOH, and wherein the n's, X's and/or R's preferably have the same meaning, as well as halogen-containing polymers stabilized with use of this combination.

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