Patent ID: 6521675
Filing Date: 2003-02-18
Classification: B29C,B29K,C08J,Y10T

Abstract:
A foamable polymer composition comprising a monomodal polypropylene resin having a melt flow rate of from about 0.5 to about 30 g/10 min. determined according to ASTM D1238 condition L, said resin having dispersed therein from about 0.05 to about 0.5 wt. % of a crystallization nucleating agent, from about 0.01 to about 5 wt. % of a finely divided inert solid bubble nucleating agent having a mean particle size in the range of from about 0.3 to about 5 microns, and from about 0.1 to about 5 wt. % of a non-physical foaming agent.