Difunctional isocyanate-terminated poloxyalkylene diamine...

Details Difunctional isocyanate-terminated poloxyalkylene diamine... Difunctional isocyanate-terminated poloxyalkylene diamine...

C - Chemistry, Metallurgy

07

C

402/168, 260/455

C07C 275/04 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01) C08G 18/32 (2006.01) C08G 18/50 (2006.01) C08G 18/73 (2006.01) C08G 18/75 (2006.01) C08G 18/76 (2006.01) C08G 18/79 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1305163

DIFUNCTIONAL ISOCYANATE-TERMINATED POLYOXYALKYLENE DIAMINE PREPOLYMERS AND POLYMER COATINGS APPLICATIONS (D#80,655-F) ABSTRACT OF THE DISCLOSURE Diisocyanate and polyoxyalkylene diamine reaction products which contain as the principle reaction component, a diamine having the formula: Image wherein R' independently represents hydrogen or methyl and x is a number having an average value of at least 1 to about 60 and a diisocyanate of the formula: Image or OCN - (CH2)6-NCO The products of the invention are obtained by reacting a polyoxyalkylene diamine with an excess of diisocyanate in the presence of a polar solvent to obtain products with the following general structures: Image where B is alkyl group from diisocyanates. These products and the corresponding blocked isocyanate prepolymer are further used to prepare coatings by reaction with polyoxyalkylene polyamine. pg:EX9L/d

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