Open cell body made of hard vinyl chloride resin
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United States of America Patent
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Jan 24, 1989
Grant Date -
N/A
app pub date -
Oct 13, 1987
filing date -
Oct 21, 1986
priority date (Note) -
Expired
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Abstract
An open cell body is made of hard vinyl chloride resin made by extruding a compound composition consisting essentially of a vinyl chloride resin made by a suspension polymerization method or a block polymerization method, an ultramacromolecular weight acrylic processing aid, joint use of an organic stabilizer containing a metal of the group I in the periodic table and an organic stabilizer containing a metal of the group II in the periodic table, or an organic composite stabilizer containing the both metals, joint use of an anionic surface active agent and a nonionic surface active agent, or joint use of an anionic surface active agent and a low polymerization degree polyolefin or waxes, a thermal decomposing organic blowing agent such as azodicarbonamide, and, as occasion demands, a powderly filler such as calcium carbonate.
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