Method for producing an open cell foam from a polyvinyl chloride resin produced by suspension polymerization

A process for producing an open cell foam comprising the steps of:

• (a) forming an extrudable 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, one anionic surface active agent, and a heat decomposable blowing agent;
• and
• (b) heating said compound to decompose said blowing agent, thereby producing said foam.

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, one anionic surface active agent, and a heat decomposable blowing agent;
• and
• (b) heating said compound to decompose said blowing agent, thereby producing said foam.

A process for producing an open cell foam comprising the steps of:

• (a) forming a compound comprising a resin of which the major amount is polyvinyl chloride resin produced by suspension polymerization, 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 anionic surface active agent, and a heat decomposable blowing agent;
• and
• (b) heating said compound to decompose said blowing agent, thereby producing said foam.