Patent ID: 8492459

Claim:
An ink composition, which is used in an imprint lithographic process and roll-printing process for transferring a pattern on a substrate by bringing an ink composition into contact with a blanket having a pattern formed thereon, wherein the ink composition comprising: a) 5 to 45 parts by weight of polymer resin; b) 5 to 45 parts by weight of a tackifier; and c) 50 to 90 parts by weight of an organic solvent, the blanket having a swelling ratio after 24 hours of 0 to 5% relative to the ink composition, wherein the polymer resin is one or more selected from the group consisting of a novolac resin, an acrylic resin, and a mixture thereof, wherein the ink composition further comprising 0.01 to 3 parts by weight of a boron-based surfactant with respect to a total of 100 parts by weight of the ink composition, wherein the ink composition further comprises 0.01 to 5 parts by weight of an adhesive sensitizer that is a melamine-based cross-linking agent, and wherein the tackifier is one or more selected from the group consisting of butylated hydroxyanisole, 2,6-di-tert-butyl-4-hydroxymethylphenol, butylated hydroxytoluene, propyl gallate, lauryl gallate, octyl gallate, 2,4,5-trihydroxybutyprophenone, tert-butylhydroquinone; phenols selected from the group consisting of methoxyphenol, 2,3,5-trimethylphenol, 2,4-dimethylphenol, 2,6-dimethylphenol, poly(4-vinylphenol), and 4-bromophenol; ethers selected from the group consisting of ethylvinylether, poly(methylvinylether), and poly(isobutylvinylether); poly-(p-hydroxy)styrene, 1,1-bis(4-hydroxyphenyl)decane, tetrakis(methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate))methane, 1,3,5-trimethyl-2,4,6-tris-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanuate, octadecyl 3-(3′,5′-di-t-butyl-4-hydroxyphenyl)propionate, 2,5-bis(1,1-dimethylpropyl)-1,4-benzenediol, 1,1,3-tris(2-methyl)-4-hydroxy-5-tert-butylphenyl butane, triethylene-bis-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, 2,2-methylenebis(4-methyl-6-(1-methylcyclohexyl)phenol), tris(2,4-di-tert-putylphenyl)phosphate; unmodified rosins selected from the group consisting of gum rosins, wood rosins, and tall oil rosins; modified rosins selected from the group consisting of stabilized rosins, completely hydrogenated rosins, and partially hydrogenated rosins modified by polymerization, disproportionation, or hydrogenation; unsaturated fatty acid modified rosin-based resins, unsaturated fatty acid modified rosin ester-based resins, rosin alcohol-based resins, metal salts of rosin-based resins, and an urethane oligomer having an average molecular weight of 1,000 to 5,000.