Patent ID: 6841589

Claim:
A UV curable composition useful for three-dimensional inkjet printing comprising (i) at least one UV curable urethane (meth)acrylate resin; (ii) at least one linear carbamate wax selected one from the group consisting of the structure C n H (2n+1) NC(O)OC m H (2m) OC(O)C(CH 3 )═CH 2 wherein n is an integer from about 1 to about 18 and m is an integer from about 2 to about 12; the structure C n H (2n+1) (O)OCNC 2 H 4 OOCC(CH 3 )═CH 2 wherein n is an integer from about 4 to about 18, the structure C 18 H 37 NCOOC n H (2n+1) wherein n is an integer from 4 to 16 and combinations thereof; (iii) at least one (meth)acrylate diluent; (iv) at least one photoinitiator; and (v) at least one polymerization inhibitor; wherein the amount of wax (ii) is sufficient to phase change the UV curable composition after jetting.