Prefoamed particles of crosslinked propylene-type resin and...

Details Prefoamed particles of crosslinked propylene-type resin and... Prefoamed particles of crosslinked propylene-type resin and...

C - Chemistry, Metallurgy

08

J

403/78

C08J 9/22 (2006.01) C08J 9/18 (2006.01) C08J 9/228 (2006.01)

Patent

CA 1223400

Abstract of the Disclosure Prefoamed crosslinked propylene-type resin particles prepared by using as a base resin a propylene random copolymer whose amount of heat of crystallization determined by a DSC method is 19 to 10 cal/g. The pre- foamed particles have a gel fraction of 1 to 65 %. Also provided is a molded article of a crosslinked propylene- type resin which is a fused aggregate of the aforesaid prefoamed particles in which the number of cells, N per mm2, and the density, d (g/cm3), have the relation represented by the expression 2<Nl/2/dl/3<45.

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