申请人:STAMICARBON B.V.
公开号:EP0115885A1
公开(公告)日:1984-08-15
Stabilized polymer composition comprising
A 10-90 parts by weight polycarbonate,
B 90-10 parts by weight of a mixture of
25-100 parts by weight of a graft copolymer obtained by
polymerizing a monomer mixture consisting of styrene, acrylonitrile, methylmethacrylate or a mixture of two or more of these compounds in the presence of a rubber, and
0-75 parts by weight of a copolymer of styrene, acrylonitrile, methylmethacrylate, or a mixture of two or more of these compounds
C 0.04-5.0 parts by weight stabilizer, per 100 parts by weight A and B jointly.
The stabilizer is a mixture of
C1 0.01-1.0 parts by weight of one or more organic phosphites and/or phosphonites and
C2 0.01 -2.0 parts by weight of at least one compound chosen from the group of
C2 - 1 phenolic antioxidants, and
C2 - 2 thio compounds,
as well as an effective quantity of a fatty acid, fatty acid ester, fatty acid amide, fatty acid salt or a mixture of two or more of these compounds.
稳定聚合物组合物,包括
A 10-90 份(按重量计)聚碳酸酯、
B 90-10 份(按重量计)以下物质的混合物
25-100 份(重量比)接枝共聚物的混合物,该接枝共聚物是通过以下方法获得的
由苯乙烯、丙烯腈、甲基丙烯酸甲酯或其中两种或两种以上化合物的混合物组成的单体混合物在橡胶存在下聚合而成的接枝共聚物的混合物,以及
0-75 重量份的苯乙烯、丙烯腈、甲基丙烯酸甲酯或两种或两种以上此类化合物混合物的共聚物
C 每 100 份重量的 A 和 B 共用 0.04-5.0 份重量的稳定剂。
稳定剂是以下物质的混合物
C1 0.01-1.0 份(按重量计)一种或多种有机亚磷酸盐和/或膦酸盐和
C2 0.01 -2.0(按重量计),至少一种选自以下组别的化合物
C2 - 1 酚类抗氧化剂,和
C2 - 2 硫代化合物、
以及有效量的脂肪酸、脂肪酸酯、脂肪酸酰胺、脂肪酸盐或两种或两种以上此类化合物的混合物。