C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3037
C08L 69/00 (2006.01) C08L 51/00 (2006.01) C08L 51/04 (2006.01)
Patent
CA 1255833
- 20 - O.Z. 0050/37072 Abstract of the Disclosure: A thermoplastic molding material consists of a polycarbonate A and a graft co- polymer B, the latter consisting of an elastomer (rubber) b1) and a shell b2) grafted onto the elastomer. The elastomer b1) contains, as copolymerized units, from 35 to 100% by weight of a diene from the group consisting of the conjugated dienes of 4 or 5 car- bon atoms, and can contain, as copolymerized units, from 0 to 65% by weight of a monomer from the group consisting of the alkyl acrylates or alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The shell b2) is obtained in a conventional manner by successive polymerization of the monomers con- stituting the shell, in two process steps, in the pre- sence of the elastomer b1); in a first process step, from 10 to 90% by weight of a mixture of a vinylaromatic hydrocarbon and one or more ethylenically unsaturated monomers which differ from the said hydrocarbon, in a weight ratio of from 90:10 to 60:40, are first incor- porated as copolymerized units, followed by the polymeri- zation of from 90 to 10% by weight of a monomer from the group consisting of the alkyl acrylates or of the alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The molding material is used for the production of shaped articles.
478835
Echte Adolf
Frank Herbert
Hambrecht Juergen
Mitulla Konrad
Schwaab Josef
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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