THERMOPLASTIC RESIN COMPOSITION

PURPOSE:An impact-resistant thermoplastic resin composition excellent in gloss, prepared by specifying both the content of the unsaturated nitrile monomer units in the polymer portion grafted onto the rubber in a graft polymer and the content of the same monomer units in the total free poymer within...

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Bibliographische Detailangaben
Hauptverfasser:	ABE MITSUO, KAWASHIMA KOUZOU, NOCHIMORI SEIICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:An impact-resistant thermoplastic resin composition excellent in gloss, prepared by specifying both the content of the unsaturated nitrile monomer units in the polymer portion grafted onto the rubber in a graft polymer and the content of the same monomer units in the total free poymer within specified ranges. CONSTITUTION:The titled composition comprising a graft polymer (C) obtained by polymerizing an aromatic vinyl compound (A) or a monomer mixture containing compound A and an unsaturated nitrile (B), or a mixture comprising polymer C and a polymer based on compound A or on both compounds A and B, wherein the weight ratio of compound B to compound A of the nonrubber polymer is 5-25/95-75, the content of rubber is 5-25wt%, that of the unsaturated nitrile monomer units in the polymer portion, except rubber, grafted onto the rubbery polymer is 0-35wt%, that of the total free ungrafted polymer is 2-20wt%, and the intrinsic viscosity (as measured in methyl ethyl ketone at 30 deg.C) of the total free polymer is 0.4-0.9dl/g.