EXPANDABLE STYRENE RESIN PARTICLE AND MOLDED STYRENE RESIN FOAM PRODUCED THEREFROM

Title:

EXPANDABLE STYRENE RESIN PARTICLE AND MOLDED STYRENE RESIN FOAM PRODUCED THEREFROM

Document Type and Number:

Japanese Patent JPH0790105

Kind Code:

A

Abstract:

PURPOSE: To produce a molded styrene resin foam excellent in compression strength, elasticity such as recovery from compression set, and impact resistance and suitable for applications where elasticity and impact resistance are required, such as a cushioning material for packaging and a heat insulation material.

CONSTITUTION: The title particles are based on a copolymer obtd. by the graft polymn. of a styrene monomer onto polybutadiene with a high cis content, contain n-pentane as the blowing agent, and give a molded foam with a density of 0.015-0.040g/cm3, an average cell size of 60-300μm, and a closed cell content of 50% or higher.

Inventors:

MORIOKA IKUO
YAMAGATA HIROYUKI
SHIMADA MUTSUHIKO

Application Number:

JP15887994A

Publication Date:

April 04, 1995

Filing Date:

July 11, 1994

Export Citation:

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Assignee:

SEKISUI PLASTICS

International Classes:

B29B11/06; B65D81/09; C08F279/02; C08J9/14; C08J9/18; (IPC1-7): C08J9/18; C08J9/14

Attorney, Agent or Firm:

Shintaro Nogawa

Next Patent: METHOD AND APPARATUS FOR PROCESSING FOAM