PRODUCTION OF INTEGRAL SKIN FOAM

Title:

PRODUCTION OF INTEGRAL SKIN FOAM

Document Type and Number:

Japanese Patent JPH02196813

Kind Code:

A

Abstract:

PURPOSE:To obtain the title foam having excellent abrasion resistance and useful for steering wheel, shift knob, etc., by subjecting a mixture containing an isocyanate and polyol at a specific ratio to heat foaming in the presence of a CFC based foaming agent in a closed mold. CONSTITUTION:A raw material consisting of an isocyanate (e.g. diphenylmethanediisocyanate) and polyol (preferably polyetherpolyol having 3000-8000 molecular weight) and controlled so that equivalent ratio of NCO/OH is 1.15-1.35 is subjected to foaming reaction in the presence of a CFC based foaming agent (e.g. trichloromonofluoromethane) in a closed mold retained at 40-70 deg.C to provide the aimed foam having 0.3-0.9g/cm<3> average density.

Inventors:

HOTTA HIROMICHI
MIZUMURA KAZUO
KURIBAYASHI KATSUJI

Application Number:

JP1705489A

Publication Date:

August 03, 1990

Filing Date:

January 26, 1989

Export Citation:

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Assignee:

MD KASEI KK

International Classes:

B29C39/38; B29C39/44; C08G18/00; C08G18/08; C08G18/48; C08G18/63; C08J9/34; B29K105/04; B29L31/58; (IPC1-7): B29C39/38; B29C39/44; B29K105/04; B29L31/58; C08G18/00

Attorney, Agent or Firm:

Hasegawa Soji

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