Method for extruding plastic materials

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United States of America Patent

PATENT NO 9944008
SERIAL NO

12999810

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Abstract

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The invention relates to a process for extruding plastic compositions, in particular polymer melts and mixtures of polymer melts, above all thermoplastics and elastomers, particularly preferably polycarbonate and polycarbonate blends, also with the incorporation of other substances such as for example solids, liquids, gases or other polymers or other polymer blends with improved optical characteristics, with the assistance of a multi-screw extruder with specific screw geometries.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AGLEVERKUSEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bierdel, Michael Leverkusen, DE 29 120
Koenig, Thomas Leverkusen, DE 36 119
Kohlgrüber, Klemens Kuerten, DE 8 32
Liesenfelder, Ulrich Bergisch-Gladbach, DE 38 144
Rechner, Johann Kempen, DE 63 497

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