Styrene butadiene block copolymer mixtures for shrink-wrap films

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United States of America Patent

PATENT NO 8759445
APP PUB NO 20110098401A1
SERIAL NO

13000817

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Abstract

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A mixture which comprises

    a) from 5 to 95% by weight of a copolymer A which comprises one or more copolymer blocks (B/S)A each composed of from 65 to 95% by weight of vinylaromatic monomers and from 35 to 5% by weight of dienes and of a glass transition temperature TgA in the range from 40° to 90° C.,b) from 95 to 5% by weight of a block copolymer B which comprises at least one hard block S composed of from 95 to 100% by weight of vinylaromatic monomers and of from 0 to 5 by weight of dienes, and comprises one or more copolymer blocks (B/S)A each composed of from 65 to 95% by weight of vinylaromatic monomers and of from 35 to 5% by weight of dienes and of a glass transition temperature TgA in the range from 40° to 90° C., and comprises one or more copolymer blocks (B/S)B each composed of from 20 to 60% by weight of vinylaromatic monomers and of from 80 to 40% by weight of dienes and of a glass transition temperature TgB in the range from −70° to 0° C.,c) from 0 to 45% by weight of thermoplastic polymers C other than A and B, andd) from 0 to 6% by weight of processing aids D,where the entirety of A to D gives 100% by weight, and its use for the production of shrink films.

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Patent Owner(s)

Patent OwnerAddress
STYROLUTION EUROPE GMBH60325 FRANKFURT AM MAIN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Güntherberg, Norbert Speyer, DE 20 151
Greger, Florian Ellerstadt, DE 2 12
Knoll, Konrad Mannheim, DE 89 754
Müller, Matthias Pfungstadt, DE 77 804
Mehler, Christof Dossenheim, DE 12 63
Schuster, Michael Erpolzheim, DE 52 1086
Steininger, Helmut Worms, DE 24 324
Verlinden, Geert Stekene, BE 6 13
Wagner, Daniel Bad Dürkheim, DE 152 1336

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