Isocyanate-functional polymers containing a terminal...

Details Isocyanate-functional polymers containing a terminal... Isocyanate-functional polymers containing a terminal...

C - Chemistry, Metallurgy

08

L

402/131, 402/167

C08L 75/02 (2006.01) C08L 91/00 (2006.01)

Patent

CA 1131242

ABSTRACT OF THE DISCLOSURE Low molecular weight isocyanate-functional acrylic polymers are provided, which contain at least 10% by weight of copolymerized isocyanatoalkyl (meth)acrylate, are substan- tially free of toxic monomeric isocyantes, and have the following general structure: Image where R is alkyl or aryl, R1 is hydrogen or methyl; X is COO-A-NCO or a mixture of COO-A-NCO and at least one of phenyl, COOR2, Image , Cl, H; where A is an alkylene group having 2-6 carbon atoms, and R2 is an alkyl group having 1-18 carbon atoms; and n is 2-400. These polymers can be crosslinked and are useful in a variety of applications such as finishes, pigment surface treatments and dispersants, and theology control agents.

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