Hard polyvinyl chloride resin composition and open-cell foam made of said composition
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United States of America Patent
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Jan 10, 1989
Grant Date -
N/A
app pub date -
Nov 18, 1987
filing date -
Feb 21, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hard polyvinyl chloride resin composition is provided, which contains as essential components thereof the following components (a)-(e): (a) a polyvinyl chloride base resin produced by suspension polymerization and/or bulk polymerization; (b) a super high molecular acrylic resin base processing aid; (c) a stabilizer containing one or more Group-II and/or Group-IV metals; (d) a surfactant; and (e) a heat-decomposable organic foaming agent. The above composition is formed by extrusion into a hard polyvinyl chloride resin open-cell foam.
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