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US 5,344,876 AGranted
Molding compounds having improved fire behavior
AssigneeBayer Aktiengesellschaft
InventorsKarl-Erwin Piejko, Hans-Eberhard Braese, Christian Lindner
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Abstract
Molding compounds of acrylate polymers, optionally graft rubbers and/or optionally resin-like vinyl polymers containing 0.05 to 5% by weight tetrafluoroethylene polymers.
Claims6
A molding compound which consists of:
- A. an acrylate polymer prepared from at least one C.sub.1-8 alkyl acrylate and optionally up to 50% by weight of monomers selected from the group consisting of C.sub.1-4 alkyl methacrylates, styrene, or acrylonitrile in the presence of a polyfunctional vinyl or allyl crosslinking comonomer, which acrylate polymer is particulate and is at least partially crosslinked and is not grafted,
- B. from 1 to 5% by weight of tetrafluoroethylene polymers, based on weight of molding compound, the tetrafluoroethylene polymers having a fluorine content of 65 to 76% by weight, said molding compound optionally additionally containing
- C. a graft rubber selected from acrylate-based graft rubber and/or ABS graft rubber,
- D. a styrene/acrylonitrile resin, and/or
- E. lubricants, antioxidants, antistatic agents, colorants and flameproofing agents.
2 more elements
Dependencies are inferred from the claim text.