Method for producing an open cell foam from a polyvinyl chloride resin produced by suspension polymerization
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United States of America Patent
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May 3, 1983
Grant Date -
N/A
app pub date -
Nov 28, 1980
filing date -
Dec 25, 1979
priority date (Note) -
Expired
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Abstract
A process for producing an open cell foam comprising the steps of: (a) forming a compound comprising polyvinyl chloride resin produced by suspension polymerization, at least one organic stabilizer containing at least one Group I metal and at least one organic stabilizer containing at least one Group II metal, at least one surface active agent, and a heat decomposable blowing agent; and (b) heating the compound to decompose the blowing agent thereby producing the foam. A foamable compound comprising polyvinyl chloride resin produced by suspension polymerization, at least one organic stabilizer containing at least one Group I metal and at least one organic stabilizer containing at least one Group II metal, at least one surface active agent, and a heat decomposable blowing agent. The foam formed exhibits high breathability as well as a high water permeability when desired.
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