申请人:Weber Martin
公开号:US20080227920A1
公开(公告)日:2008-09-18
Thermoplastic molding compositions, comprising
A) from 10 to 97.5% by weight of at least one thermoplastic polyester A,
B) from 1 to 97.5% by weight of at least one graft polymer B composed of
b1) from 40 to 80% by weight of a graft base composed of 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 with a glass transition temperature below 0° C.,
b2) from 20 to 60% by weight of a graft B2 composed of
b21) from 60 to 95% by weight of styrene or of substituted styrenes B21 of the general formula I
where R is a C
1-8
-alkyl radical or hydrogen and R
1
is a C
1-8
-alkyl radical 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 composed of
c1) from 60 to 85% by weight of styrene or of substituted styrenes C1 of the general formula 1, or a mixture thereof, and
c2) from 15 to 40% by weight of at least one unsaturated nitrile C2,
D) from 0.5 to 50% by weight of at least one copolymer D, obtainable via reaction of
d1) from 5 to 95% by weight of at least one thermoplastic methacrylate polymer D1 comprising at least one type of functional groups, selected from epoxy, carboxy, hydroxy, anhydride, and oxazoline, with
d2) from 5 to 95% by weight of at least one thermoplastic polyester D2,
E) from 0 to 40% by weight of at least one filler E,
F) from 0 to 2% by weight of at least one organic acid F,
G) from 0 to 25% by weight of at least one halogen-free phosphorus compound G,
H) from 0 to 45% by weight of other additives H,
where the entirety of components A to H always gives 100%.