Acrylic copolymer for use in highly filled composites
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United States of America Patent
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Jan 14, 2014
Grant Date -
May 16, 2013
app pub date -
Dec 19, 2012
filing date -
Oct 30, 2007
priority date (Note) -
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Abstract
The invention relates to an acrylic copolymer additive useful as a process aid in highly filled polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) composites. The acrylic additive is especially useful in highly filled PVC flooring tiles, rolled flooring, pipe and siding. The acrylic copolymer additive contains from 50 to 79 weight percent of methyl methacrylate monomer units, and has a Tg of less than 90° C.
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