Blowing agent blends

Details Blowing agent blends Blowing agent blends

1998-11-24

1999-09-28

Cooney, Jr., John M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

2521822, 2521824, 510415, 521155, 521170, 521174, 568700, C08J 904

Patent

active

059589922

ABSTRACT:
Foam blowing agents blends of 10-90% of n- and/or i-pentane with 90-10% of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.

REFERENCES:
patent: 4789690 (1988-12-01), Milooanovic-Lerik et al.
patent: 4945119 (1990-07-01), Smits et al.
patent: 4972003 (1990-11-01), Grunbauer et al.
patent: 5182311 (1993-01-01), Patterson et al.
patent: 5283003 (1994-02-01), Chen
patent: 5451615 (1995-09-01), Birch
patent: 5484817 (1996-01-01), Patterson
RD 40137, pp. 606-609, Sep. 1997.
"Dupont Program on Fluorocarbon Alternative Blowing Agents for Polyurethane Foams", Dishart et al., Oct. 1987.
Heilig et al.; "Pentane Blown Rigid Foam", Dec. 1993.
Nelson; "Findings of the CFC Chem. Substitutes Int'l. Committee"; EPA/600/9-88/009, Apr. 1988.

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