Alliedsignal Inc.

Gary Michael Knopeck

Robert Christian Parker

Ian R Shankland

Richard E Eibeck

Timothy R Demmin

Donna M Ruszaj

Earl August Lund, Deceased

Rajiv R Singh

Stephen Frederic Yates

George David Green

Raymond Hilton Thomas

Kane David Cook

Earl A Lund

Keith A Horn

Willis Hammond

Raymond Hilton Percival Thomas

Robert Scott Wedinger

Disclosed are methods of cleaning articles of manufacture using hydrofluorocarbon and hydrochlorofluorocarbon fluids. The methods comprise generally the steps of (a) providing a hydrofluorocarbon and/or hydrochlorofluorocarbon fluid in liquid or supercritical state; (b) contacting an article of manufacture with said fluid; and (c) removing substantially all of said fluid from said article of manufacture.

Cleaning processes using hydrofluorocarbon and/or hydrochlorofluorocarbon compounds

Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 1,1-dichloro-1-fluoroethane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams and as aerosol propellants.

Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and

Azeotrope-like compositions of 1 1 1 3 3-pentafluoropropane and 1

The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol.

Catalysts which stabilize hydrohalocarbon blowing agent in

The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of additives which decrease the formation of haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, catalyst, surfactant, and at least one additive wherein the additive is capable of decreasing the amount of decomposition of said dehydrohalocarbon blowing agent to haloalkenes during polymerization of the polyisocyanate and the polyol. Depending upon the polyol and polyisocyanate used and the quantity of polyisocyanate used, the compositions may be used in pour-in-place molded foams; rigid urethane spray foams; rigid high and low density foams for slabstock, froth foams, and molded foams; rigid laminated boardstock; or specialty foams.

Additives which stabilize hydrohalocarbon blowing agent in polyurethane

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Lakeview, NY, United States of America

Gary Michael Knopeck