Patent ID: 8293354

Claim:
A stamp or mold for nanoimprint lithography comprising a cured organosiloxane resin that defines a feature having at least one dimension of greater than or equal to about 2 nanometers to less than or equal to about 100 micrometers for nanoimprint lithography, wherein the organosiloxane resin is a reaction product formed in the presence of a basic catalyst that comprises at least one silsesquioxane unit of formula (II): —(R 2 SiO 1.5 )— (II) wherein R 2 is at least one radiation-curable group independently selected from the group consisting of acrylate, epoxy, and vinyl ether groups; a second unit selected from: —(R 5 SiO 1.5 )— or —(R 1 R 5 SiO)—, wherein R 5 is a C1-C12 linear or branched alkyl group including at least one halogen heteroatom; and at least one additional unit selected from: —(R 1 SiO 1.5 )—; or (I) —(SiO 2 )—; (IV) wherein R 1 is independently selected from the group consisting of hydrogen; C1-C12 linear or branched alkyl groups; C1-C12 linear or branched alkyl groups including at least one heteroatom selected from the group consisting of nitrogen, oxygen, and combinations thereof; C1-C12 linear or branched carboxylate groups; C1-C12 linear or branched ether groups; and C6-C12 aryl groups, including phenyl groups.