Patent ID: 6765033
Filing Date: 2004-07-20
Classification: C08J,C08L

Abstract:
An expandable vinyl chloride resin composition comprising 100 parts by weight of a vinyl chloride resin, 5 to 30 parts by weight of, as a processing aid, a (meth)acrylic acid ester polymer having a specific viscosity of not less than 0.73 measured at 30Â° C. with respect to a solution of 0.1 g of the polymer dissolved in 100 ml of chloroform, and 2 to 25 parts by weight of a thermally decomposable inorganic blowing agent, said composition containing no organic solvent blowing agent, wherein the resultant expandability ratio is not less than 5:1, expandability being defined as (specific gravity of non-foamed molding)/(specific gravity of foamed molding).