Title:
【発明の名称】超低密度ポリオレフィン発泡体、発泡可能なポリオレフィン組成物及びそれらを製造する方法
Document Type and Number:
Japanese Patent JP3380816
Kind Code:
B2
Abstract:
An ultra low density polyolefin foam having a density of about 0.6 to about 1.5 pounds per cubic foot comprising a heat-plastified mixture comprising (1) a non-elastomeric olefin polymer resin selected from the group consisting of ethylene homopolymers, non-elastomeric copolymers of ethylene and a copolymerizable monomer, and propylene homopolymers; (2) an elastomer in an amount of about 3 to about 30 wt. parts per 100 wt. parts of said non-elastomeric olefin polymer resin; (3) polystyrene in an amount of about 1 to about 15 wt. parts per 100 wt. parts of said olefin polymer resin; (4) a stability control agent selected from the group consisting of partial esters of long chain fatty acids with polyols, higher alkyl amines, fatty acid amides, and olefinically unsaturated carboxylic acid copolymers, and (5) a hydrocarbon blowing agent having from 1 to 6 carbon atoms and a boiling point between -175 DEG C. and 50 DEG C., said heat-plastified mixture being at a temperature and a pressure which does not allow said mixture to expand, foamable compositions for making said low density polyolefin foam and process of making said foam.
Inventors:
John E Rogers
Ronnie Day Kissner
Ronnie Day Kissner
Application Number:
JP16549693A
Publication Date:
February 24, 2003
Filing Date:
July 05, 1993
Export Citation:
Assignee:
Astro-Valker Inc.
International Classes:
C08J9/14; C08K5/00; C08L21/00; C08L23/04; C08L23/10; C08L25/00; (IPC1-7): C08J9/14
Other References:
【文献】国際公開88/8864(WO,A1)
Attorney, Agent or Firm:
Shotaro Mogami