Back to results
US 4,054,615 AGranted
High impact ternary blend PVC moulding compositions
AssigneeBayer Aktiengesellschaft
InventorsDietrich Hardt, Gert Humme, Karl-Heinz Ott, Hans-Eberhard Braese
Life of this patent
Estimating the term…
Abstract
Thermoplastic moulding compositions of A. 65 to 95% by weight polyvinyl chloride or vinyl chloride copolymer having K-values of 50 to 80, B. 2 to 25% by weight of a chlorinated polyolefin or of a chlorinated olefin copolymer with a chlorine content of 20 to 80% by weight, C. 3 to 30% by weight of a graft polymer produced by grafting styrene or styrene and acrylonitrile and optionally copolymerizable monomers onto an EPDM rubber as graft base.
Claims16
A thermoplastic moulding composition comprising:
- a. 65 to 95% by weight of polyvinyl chloride or a vinyl chloride copolymer having a K-value of 50 to 80;
- b. 2 to 25% by weight of a chlorinated polyolefin or of a chlorinated olefin copolymer with a chlorine content of 20 to 80% by weight;
- and
- c. 3 to 30% by weight of a graft polymer produced by grafting onto an EPDM rubber as graft base a member selected from the group consisting of styrene, .alpha.-methyl styrene, a mixture of styrene and .alpha.-methyl styrene, a mixture of styrene and acrylonitrile, a mixture of .alpha.-methyl styrene and acrylonitrile, and a mixture of styrene, .alpha.-methyl styrene and acrylonitrile.
1 more element
Dependencies are inferred from the claim text.