C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/3029
C08J 3/00 (2006.01) C08L 25/12 (2006.01) C08L 55/02 (2006.01) C08L 27/18 (2006.01)
Patent
CA 1248662
\ ABSTRACT This invention relates to flame-resistant ABS moulding material comprising: I) 95 to 35 parts by weight of one or more matrix resin polymers of a thermoplastic copolymer of styrene and acrylonitrile in which, if required, all or some of the styrene is replaced by .alpha.-methylstyrene, a nuclear-alkylated styrene, a nuclear-halogenated styrene, methyl methcrylate, maleic anhydride or substituted or unsubstituted maleimide and all or some of the acrylonitrile is replaced by methacrylonitrile. II) 5 to 65 parts by weight of one or more graft polymers of a product formed when at least one of the monomers listed under I is poly- merised in the prsence of a rubber-like polymer graft base. III) 0.05 to 0.5 parts by weight of a tetrafluoroethylene polymer, IV) 0 to 8% by weight (based on I + II + III) of an inorganic flame- proofing synergist, and V) 0 to 25% by weight (based on I + II + III) of at least one organic halogen compound, having been pre- pared by a process comprising mixing an aqueous dispersion of component III with a latex of component II or a latex of component I or a latex mixture of components I and II, isolating the polymer mixture by coagulation and then incorporating components IV and V and, if appropriate, further graft polymer II and/or resin polymer I.
473350
Bosshammer Hubert
Lindner Christian
Urbannek Bernd
Zabrocki Kari
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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