Polypropylene foam sheets

Details Polypropylene foam sheets Polypropylene foam sheets

C - Chemistry, Metallurgy

08

J

C08J 9/12 (2006.01) B29C 44/56 (2006.01) C08J 5/18 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2078123

A thermoformable, rigid or semi-rigid polypropylene foam sheet having a smooth surface and a uniform cell structure and a density of at least 2.5 lbs/ft3 is prepared by extruding a mixture of a nucleating agent, a physical blowing agent and a polypropylene resin having a high melt strength and high melt elasticity.

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