Use of phosphines and/or diphosphanes in the production of...

Details Use of phosphines and/or diphosphanes in the production of... Use of phosphines and/or diphosphanes in the production of...

C - Chemistry, Metallurgy

08

K

403/20

C08K 5/50 (2006.01)

Patent

CA 1322815

Mo-3116 LeA 25,714 THE USE OF PHOSPHINES AND/OR DIPHOSPHANES IN THE PRODUCTION OF ISOCYANATE-BASED PLASTICS ABSTRACT OF THE DISCLOSURE This invention relates to a method for inhibiting core discoloration in the production of isocyanate-based foams, preferably polyurethanes based on polyesters containing at least two hydroxyl groups and having a molecular weight of from about 400 to about 10,000 or polyisocyanurates, comprising using one or more phosphines or diphosphanes in the production of such foams. Mo-3116

585336

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