Rigid foams with improved insulation and physical properties

Details Rigid foams with improved insulation and physical properties Rigid foams with improved insulation and physical properties

1993-12-15

1996-07-23

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 90, 521131, 521174, 521909, 528 76, C08J 906

Patent

active

055390064

ABSTRACT:
Rigid polyurethane foams are produced by reacting an organic polyisocyanate with a sucrose-based polyether polyol in the presence of a catalyst and a blowing agent selected from hydrogen-containing chlorofluorocarbons, hydrogen-containing fluorocarbons, hydrocarbons and mixtures thereof. These foams are characterized by good demold and insulation properties.

REFERENCES:
patent: 3085085 (1963-04-01), Wismer et al.
patent: 3153002 (1964-10-01), Wismer et al.
patent: 3215652 (1965-11-01), Kaplan
patent: 3222357 (1965-12-01), Wismer et al.
patent: 4430490 (1984-02-01), Doerge
patent: 4900365 (1990-02-01), Lund et al.
patent: 5205956 (1993-04-01), Volkert et al.
Dishart et al "The DuPont Program on Fluorocarbon Alternative Blowing Agents for Polyurethane Foams", Polyurethanes World Congress 1987, pp. 59-66.

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