Impact modified alpha alkyl substituted vinyl aromatic-vinyl cyanide thermoplastic compositions

A high heat deflection temperature impact modified thermoplastic composition exhibiting reduced opacity and high gloss is provided. The composition contains (a) an alpha-alkyl substituted-vinyl aromatic-vinyl cyanide copolymer and (b) an emulsion polymerized graft copolymer of a vinyl aromatic - die...

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Bibliographische Detailangaben
Hauptverfasser:	ROETTGER, LOUIS GEORGE, KURUGANTI, VIJAYA KUMAR, GAGGAR, SATISH KUMAR, BURGER, JAMES CHRISTOPHER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A high heat deflection temperature impact modified thermoplastic composition exhibiting reduced opacity and high gloss is provided. The composition contains (a) an alpha-alkyl substituted-vinyl aromatic-vinyl cyanide copolymer and (b) an emulsion polymerized graft copolymer of a vinyl aromatic - diene rubber substrate and a vinyl aromatic-vinyl cyanide superstrate and exhibiting high gloss and lower opacity. The reduced level of opacity allows for the ability to maintain color intensity at reduced levels of pigment loading. The compositions are useful for making molded articles such as automotive parts.