Patent ID: 7297460
Filing Date: 2007-11-20
Classification: C09D,Y10S

Abstract:
1. A radiation curable ink composition comprising at least one initiator and at least one polyhedral oligomeric silsesquioxane (POSS) characterized in that said silsesquioxane is selected from the group consisting of: wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclohexyl, cyclopentyl, ethyl, isobutyl, isooctyl or phenyl; wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclohexyl, cyclopentyl, ethyl, isobutyl, isooctyl or phenyl; wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclohexyl or isobutyl; wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclopentyl; wherein R=cyclopentyl; wherein R=cyclopentyl or isobutyl; wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclohexyl, cyclopentyl or isobutyl; wherein R=cyclohexyl, cyclopentyl, ethyl, isobutyl, isooctyl or phenyl; wherein R=isobutyl; wherein R=cyclohexyl, cyclopentyl, ethyl, isobutyl; wherein R=cyclohexyl, cyclopentyl, isobutyl; wherein R=cyclohexyl, cyclopentyl, isobutyl; wherein R=cyclopentyl; wherein R=isobutyl; and wherein R=cyclohexyl, cyclopentyl, isobutyl; and wherein said radiation curable ink composition contains at least one colorant in a concentration between 0.5 and 20 percent by weight based on the total weight of said radiation curable ink composition and each colorant is a pigment.