Curable composition with urethane (meth)acrylate monomer and acidic comonomer
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsJeffrey W. STANSBURY, Austyn SALAZAR
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Abstract
A curable composition includes a urethane (meth)acrylate monomer and an acidic or latent acidic comonomer. The urethane (meth)acrylate monomer includes 2 to 12 urethane groups and, independently, 2 to 12 (meth)acrylate groups, wherein each of at least two urethane groups is separated from at least one other urethane group or at least one urea group by at most three carbon atoms. The urethane (meth)acrylate monomer has a molecular weight less than or equal to 5,000 grams/mole. In the curable composition, the molar ratio of urethane groups in the urethane (meth)acrylate monomer to carboxylic acid and carboxylic acid anhydride groups in the acidic or latent acidic comonomer is 1:3 to 3:1.
Claims27
A curable composition, comprising:
- a urethane (meth)acrylate monomer comprising 2 to 12 urethane groups and 2 to 12 (meth)acrylate groups, wherein each of at least two urethane groups is separated from at least one other urethane group or at least one urea group by at most three carbon atoms;
- and wherein the urethane (meth)acrylate monomer has a molecular weight less than or equal to 5,000 grams/mole;
- provided that the urethane (meth)acrylate monomer does not have structure (A), (B), or (C)
- wherein X is —H or —CH3;
- n is 1, 2, 3, or 4;
- and R is an aliphatic, alkoxyalkyl, or alkylarylalkyl core group;
- an acidic or latent acidic comonomer selected from the group consisting of (meth)acrylic acid, 2-carboxyethyl (meth)acrylate, (meth)acrylic anhydride, itaconic anhydride, maleic anhydride, 4-methacryloxyethyl methacrylate, 1,3-glycerol dimethacrylate/succinate adduct, 4-methacryloxyethyl trimellitic acid, and combinations thereof;
- wherein a molar ratio of urethane groups in the urethane (meth)acrylate monomer to carboxylic acid and carboxylic acid anhydride groups in the acidic or latent acidic comonomer is 1:3 to 3:1.
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A urethane (meth)acrylate monomer comprising 2 to 12 urethane groups and 2 to 12 (meth)acrylate groups, wherein each of at least two urethane groups is separated from at least one other urethane group or at least one urea group by at most three carbon atoms;
- and wherein the urethane (meth)acrylate monomer has a molecular weight less than or equal to 5,000 grams/mole.
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Dependencies are inferred from the claim text.