PROCESS FOR THE PRODUCTION OF SYNTHETIC RESIN FOAMS

Title:

PROCESS FOR THE PRODUCTION OF SYNTHETIC RESIN FOAMS

Document Type and Number:

WIPO Patent Application WO/1998/032788

Kind Code:

A1

Abstract:

A process for the production of polyurethane or polyisocyanurate foams by reacting a polyol with a polyisocyanate compound in the presence of a blowing agent comprising a low-boiling organic compound, characterized by using as the blowing agent a mixture comprising 5 to 95 wt. % of 1,1,1,3,3- pentafluoropropane and 5 to 95 wt. % of a hydrocarbon having a boiling point ranging from 20 to 70 �C. This mixture is out of danger of destroying the ozonosphere, reduced in the effect on global warming, and flame-retardant, has a suitable boiling point, and is excellent in the compatibility with the raw materials of the foam, and conducting the above reaction in the presence of the mixture can give synthetic resin foams having excellent heat insulating properties, mechanical strengths and so on.

Inventors:

SHIBATA NORIAKI (JP)
IDE SATOSHI (JP)
SHIBANUMA TAKASHI (JP)

Application Number:

PCT/JP1998/000165

Publication Date:

July 30, 1998

Filing Date:

January 16, 1998

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
SHIBATA NORIAKI (JP)
IDE SATOSHI (JP)
SHIBANUMA TAKASHI (JP)

International Classes:

C08G18/08; C08J9/14; C08G101/00; (IPC1-7): C08J9/14

Foreign References:

JPH09176059A	1997-07-08
JPH05239251A	1993-09-17
JPH09111032A	1997-04-28

Other References: