초록 ▼

Solute polymers in solvent monomers form a coatable syrup that can be cured to a viscoelastomeric material when radiation-sensitive hydrogen abstracting groups in either the polymer or one of the monomers are exposed to ultraviolet radiation. The solute polymers can be formed from the solvent monome

Solute polymers in solvent monomers form a coatable syrup that can be cured to a viscoelastomeric material when radiation-sensitive hydrogen abstracting groups in either the polymer or one of the monomers are exposed to ultraviolet radiation. The solute polymers can be formed from the solvent monomers.

대표청구항 ▼

[ We claim:] [1.] A syrup curable to a crosslinked viscoelastomeric material comprising:a) about 65 to 99.9 weight percent of a solvent monomer mixture comprising1) 95 to 99.9999 parts by weight of at least one free radically-polymerizable ethylenically unsaturated monomer, and2) 0.0001 to 5 parts b

[ We claim:] [1.] A syrup curable to a crosslinked viscoelastomeric material comprising:a) about 65 to 99.9 weight percent of a solvent monomer mixture comprising1) 95 to 99.9999 parts by weight of at least one free radically-polymerizable ethylenically unsaturated monomer, and2) 0.0001 to 5 parts by weight of an ethylenically unsaturated monomer comprising a radiation-sensitive hydrogen abstracting group;b) about 0.1 to 35 weight percent of a solute polymer comprising1) 9s to 99.9999 weight percent mer units derived from one or more free radically-polymerizable ethylenically unsaturated monomers, and2) about 0.001 to 5 weight percent mer units derived from an ethylenically unsaturated monomer comprising a radiation-sensitive hydrogen abstracting group,said polymer having a molecular weight of at least 500,000;c) from 0.01 to 5 parts by weight of a free radically-polymerizable polyethylenically unsaturated monomer selected from the group consisting of acrylate monomers and divinyl monomers; andd) from 0.0001 to 3 parts by weight of a saturated energy-activated initiator of polymerization;wherein the parts by weight of said free radically-polymerizable polyethylenically unsaturated monomer and said saturated energy-activated initiator of polymerization are based upon 100 parts by weight of said solvent monomer mixture and said solute polymer.