C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08G 18/65 (2006.01) C08J 9/00 (2006.01)
Patent
CA 2086291
PROCESS FOR THE PREPARATION OF POLYURETHANE FOAMS EMPLOYING POLYOL DISPERSIONS CONTAINING POLYISOCYANATE POLYADDITION SOLIDS Abstract of the Disclosure Addition of minor quantities of mono- or dicarboxylic acids to polyurethane foam formulations which employ polyisocyanate polyaddition polymer polyol dispersions prevents shrinkage and tightness in polyurethane foams prepared therefrom. If acid addition is made directly after dispersion preparation, reduction of polyol viscosity and more rapid stabilization against viscosity change is observed. 19
Christman Donald L.
Grace Oscar M.
Wujcik Steven E.
Basf Corporation
Christman Donald L.
Grace Oscar M.
Robic
Wujcik Steven E.
LandOfFree
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