Filled thermoplastic moulding materials on the basis of polycarbonate and styrene copolymers
申请人:——
公开号:US20030166761A1
公开(公告)日:2003-09-04
The thermoplastic molding composition comprises components A, B, C and D, and also, where appropriate, E, F, G and H, the entirety of which gives 100% by weight:
a) from 1 to 97.5% by weight of at least one aromatic polycarbonate A,
b) from 1 to 97.5% by weight of at least one graft polymer B made from
b1) from 40 to 80% by weight of a graft base made from an elastomeric polymer B1 based on alkyl acrylates having from 1 to 8 carbon atoms in the alkyl radical, on ethylene-propylene, on dienes or on siloxanes, and having a glass transition temperature below 0° C.,
b2) from 20 to 60% by weight of a graft B2 made from
b21) from 60 to 95% by weight of styrene or of substituted styrenes B21 of the formula I
1
where R is C
1
-C
8
-alkyl or hydrogen and R
1
is C
1
-C
8
-alkyl and n is 1, 2 or 3, or a mixture of these, and
b22) from 5 to 40% by weight of at least one unsaturated nitrile B22,
c) from 1 to 97.5% by weight of at least one thermoplastic copolymer C made from
c1) from 60 to 85% by weight of styrene or of substituted styrenes C1 of the formula I, or mixtures of these compounds, and
c2) from 15 to 40% by weight of at least one unsaturated nitrile C2,
d) from 0.5 to 25% by weight of a mixture D made from, based on component D,
d1) from 5 to 95% by weight of at least one particulate mineral filler D1, and
d2) from 5 to 95% by weight of fibrous fillers D2, where at least 50% by weight of the fibrous fillers have a length of at least 50 &mgr;m,
and other ingredients where appropriate.
热塑性模塑组合物包括 A、B、C 和 D 组份,适当时还包括 E、F、G 和 H 组份,按重量计,它们的总含量为 100%:
a) 至少一种芳香族聚碳酸酯 A,重量百分比为 1-97.5%、
b) 至少一种接枝聚合物 B,重量百分比为 1 至 97.5%,由以下材料制成
b1) 40%至 80%(以重量计)的接枝基,由弹性聚合物 B1 制成,该聚合物以烷基丙烯酸酯为基础,在烷基中含有 1 至 8 个碳原子,以乙烯-丙烯、二烯烃或硅氧烷为基础,玻璃化温度低于 0 摄氏度、
b2) 20%至 60%(按重量计)的接枝 B2,由以下材料制成
b21) 60% 至 95% (按重量计)的苯乙烯或取代的苯乙烯 B21,如式 I 所示
1
其中 R 为 C
1
-C
8
-烷基或氢,R
1
是 C
1
-C
8
-烷基,n 为 1、2 或 3,或它们的混合物,以及
b22) 至少一种不饱和腈 B22,重量百分比为 5-40%、
c) 至少一种热塑性共聚物 C,重量百分比为 1 至 97.5%,该共聚物由以下材料制成
c1) 60-85%(重量)的苯乙烯或式 I 的取代苯乙烯 C1 或这些化合物的混合物,以及
c2) 至少一种不饱和腈 C2,重量百分比为 15-40%、
d) 0.5%至 25%(按重量计)的混合物 D,以组分 D 为基础、
d1) 至少一种微粒矿物填料 D1 的 5%至 95%(按重量计),以及
d2) 5-95%(重量)的纤维填料 D2,其中至少 50%(重量)的纤维填料长度至少为 50 米、
以及其他适当的成分。