Highly functional fluorinated polyisocyanates and varnishes...

Details Highly functional fluorinated polyisocyanates and varnishes... Highly functional fluorinated polyisocyanates and varnishes...

C - Chemistry, Metallurgy

07

C

402/132, 260/468

C07C 271/08 (2006.01) C08G 18/10 (2006.01) C08G 18/50 (2006.01) C09D 175/08 (2006.01)

Patent

CA 1277674

ABSTRACT OF THE DISCLOSURE Highly functional fluorinated polyisocyanates of the formula: Image (I) wherein Z1 represents the functional group -O-CO-NH-R-NCO; Z2 represents the difunctional group -O-CO-NH-R-NH-CO-O-; Rf is a radical derived from fluoropolyethers having a molecular weight between 500 and 7000; T represents a trivalent or tetravalent radical derived from a polyol; q is zero or l; and s is 1 or 2. Also, varnishes containing said highly functional fluorinated polyisocyanates of formula (I).

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