PRODUCTION METHOD OF RIGID AND FLEXIBLE POLYURETHANE FOAM

Title:

PRODUCTION METHOD OF RIGID AND FLEXIBLE POLYURETHANE FOAM

Document Type and Number:

Japanese Patent JP2007146179

Kind Code:

A

Abstract:

To provide a production method of a water-blown polyurethane foam using a specific catalyst and the thus formed foam.

This production method of a water-blown polyurethane foam comprises reacting a polyisocyanate and a polyol in the presence of water, a tin salt of a carboxylic acid having 2 to 18 carbon atoms (catalyst 1) and a lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and/or balium salt of a proton acid having at least two acidic hydrogen atoms and having pKa in water of 2 to 10 (catalyst 2), wherein the ratio of catalyst 1:catalyst 2 is 30:70 to 95:5; the amount of catalyst 1 and catalyst 2 respectively is 0.1 to 5% by weight; and before a foaming reaction, catalyst 1 is mixed with a part of an isocyanate-reactive compound and catalyst 2 is mixed with another part of the isocyanate-reactive compound.

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WO/2018/002203	PU FLOORING PRODUCTION FOR A SPORTS FIELD
JPS57200417	CATALYST FOR POLYURETHANE
WO/2022/060687	PREPARATION OF LOW ODOR POLYURETHANE FOAMS

Inventors:

ELING BEREND

Application Number:

JP2007025133A

Publication Date:

June 14, 2007

Filing Date:

February 05, 2007

Export Citation:

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Assignee:

HUNTSMAN INTERNATL LLC

International Classes:

C08G18/24; C08G18/22; C08J9/02; C08G101/00

Domestic Patent References:

JPH03168228A	1991-07-22
JPH07233234A	1995-09-05
JPS467118B1
JPH06507925A	1994-09-08
JPS528100A	1977-01-21
JPH0538726A	1993-02-19
JPH03237138A	1991-10-23
JPH09324119A	1997-12-16

Foreign References:

US4237235A

1980-12-02

Attorney, Agent or Firm:

Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi

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