Polymer composition for flexible coating

Details Polymer composition for flexible coating Polymer composition for flexible coating

C - Chemistry, Metallurgy

08

L

240/150, 400/400

C08L 101/00 (2006.01) C08K 7/20 (2006.01) C09D 5/33 (2006.01) C09D 201/00 (2006.01) G02B 5/128 (2006.01) G09F 13/16 (2006.01)

Patent

CA 1336300

A curable polymer composition for use in providing a dimensionally stable coating comprises a semi-interpenetrating polymer network. The semi- interpenetrating polymer network includes a reactive polymer component, cross-linking agent, and non-reactive polymer component. The non-reactive polymer component has a molecular weight of about 7,000-30,000, and preferably about 15,000. In preferred embodiments, the reactive polymer has a molecular weight of about 30,000- 200,000, and preferably about 40,000-60,000. Spacecoat compositions made with formulations described, exhibit good long-term stability, and resistance to failure upon embossing of a substrate to which the retroreflective sheeting is applied.

607083

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