Patent ID: 9546305
Date: 2017-01-17
CPC Classifications: C09J,Y10T

Claim:
1. A derivatized polymer, comprising a polymer backbone having constituents bound thereto, wherein (A) the polymer backbone is derived from at least one (meth)acrylate monomer, and (B) the constituents are: (i) a photoinitiator adduct present in an amount ranging from about 1% to about 2%, by total weight of the photoinitiator adduct and the polymer backbone, wherein the photoinitiator adduct comprises a reaction product of (a) a Type I photoinitiator and (b) a (meth)acrylate monomer in the form of an anhydride or an acid; and (ii) a derivatizing agent present in an amount ranging from about 1% to about 4%, by total weight of the derivatizing agent and the polymer backbone, comprising an acrylate monomer and a diisocyanate, wherein the molar ratio of the acrylate monomer to the diisocyanate is in a range of from about 1.05:1 to about 1.5:1 such that the derivatizing agent comprises a monoacrylate functionalized diisocyanate and a diacrylate functionalized diisocyanate.