POLYPROPYLENE-BASED RESIN FOAM PARTICLE AND ITS MOLDING

Title:

POLYPROPYLENE-BASED RESIN FOAM PARTICLE AND ITS MOLDING

Document Type and Number:

Japanese Patent JP3281904

Kind Code:

B2

Abstract:

PURPOSE: To provide the subject propylene-based resin foam particles improved in its stiffness without reducing its lightweight properties suitable, e.g. for a core material of an automobile bumper and to provide the subject molding thereof.
CONSTITUTION: The objective polypropylene-based resin foam particles are characteristically produced by foaming propylene-based resin particles containing a polypropylene-based base resin having 250 to 350kg/cm2 tensile strength at yield point and a crystal structure giving a differential thermal analysis DSC curve in which a high-temperature peak other than its characteristic peak appears at 15 to 35J/g and a small amount of an organoaluminum-based nucleating agent. The objective molding is obtained from the resultant resin foam particles.

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Inventors:

Hideki Kuwahara
Hidehiro Sasaki
Akira Shioya

Application Number:

JP36036791A

Publication Date:

May 13, 2002

Filing Date:

December 28, 1991

Export Citation:

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Assignee:

JSP Corporation

International Classes:

B29C44/00; C08J9/16; C08J9/232; C08L23/12; B29K23/00; B29K105/04; (IPC1-7): C08J9/16; C08J9/232

Attorney, Agent or Firm:

Toshiaki Ikeura (1 outside)

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