Fuctionalized multistage polymers

Details Fuctionalized multistage polymers Fuctionalized multistage polymers

C - Chemistry, Metallurgy

08

L

C08L 101/08 (2006.01) C08F 8/08 (2006.01) C08F 265/06 (2006.01) C09D 5/02 (2006.01) C09D 151/06 (2006.01) C09D 201/08 (2006.01)

Patent

CA 2087570

ABSTRACT OF THE DISCLOSURE: An aqueous, radiation-curable, functionalized latex polymer composition and its preparation are disclosed. The composition is a multistaged latex polymer formed from a first stage polymer and a second stage polymer having a, .alpha., .beta.-unsaturated carbonyl functionalization which permits curing by UV radiation. The composition dries tack-free before curing. The final cured W coating has excellent solvent resistance, water resistance, stain resistance, direct impact resistance arid hot print resistance. The composition is useful in coatings, adhesives, inks and leather coatings, and is particularly useful as a coating on wood. A method of forming a radiation-curable multistage polymer is disclosed. The polymer is made by (a) forming a multistage polymer having (1) a first stage polymer; and (2) a second stage polymer comprising at least one comonomer containing acid functionality; (b) partially neutralizing said acid functionality of said second stage polymer of said multistage polymer with a base; and (c) reacting said multistage polymer having partially neutralized acid functionality with a monoethylenically unsaturated epoxide compound.

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