C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/34 (2006.01) B29C 47/00 (2006.01) C08L 23/10 (2006.01)
Patent
CA 2623229
The present invention is directed to compositions comprising (a) a synthetic polymer, (b) a talc as a filler, wherein the talc particles have a mean particle size of from 0.4 to 25 ~m, and are present in an amount of from 0.1 to 10 % based on the weight of component (a) and (c) a dispersing agent which is based on a non-ionic surfactant or an amphiphilic statistical, block or comb copolymer; provided that when the synthetic polymer (a) is a polyamide, this is present in an amount of less than 55 % based on the weight of (a), (b) and (c).
La présente invention concerne des compositions comprenant (a) un polymère synthétique, (b) du talc en tant que charge, les particules de talc ayant une dimension particulaire moyenne de 0,4 à 25 µm, et étant présentes en une quantité de 0,1 à 10 % sur la base du poids du composant (a) et (c) un agent de dispersion à base d~un agent tensioactif non ionique ou d~un copolymère amphiphile statistique, séquencé ou en peigne ; à condition que lorsque le polymère synthétique (a) est un polyamide, il est présent en une quantité n~excédant pas 55 % sur la base du poids de (a), (b) et (c).
Campbell Jonathan
Li Guoxin
Moad Graeme
Pfaendner Rudolf
Wermter Hendrik
Fetherstonhaugh & Co.
Polymers Crc Limited
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