Back to results
US 9,237,990 B2Granted
Polymerizable isocyanurate monomers and dental compositions
Assignee3M Innovative Properties Company
InventorsAhmed S. Abuelyaman, Sumita B. Mitra
Life of this patent
Estimating the term…
Abstract
Polymerizable isocyanurate monomers and dental compositions are described. A hardenable dental composition is described comprising at least one isocyanurate monomer that is a stable liquid at about 25° C. The isocyanurate monomer comprises at least one divalent linking group bonded to a nitrogen atom of a trivalent isocyanuric acid ring, wherein the divalent linking group comprises a moiety selected from ester, thioester, ether, or thioether, and combinations of such moieties and a terminal ethylenically unsaturated polymerizable group.
Claims23
A hardenable dental composition comprising
- at least one isocyanurate monomer that is a liquid at about 25° C., the isocyanurate monomer comprising at least one terminal ethylenically unsaturated polymerizable group bonded to a nitrogen atom of a trivalent isocyanuric acid ring via a divalent linking group;
- wherein the divalent linking group is branched or comprises an aliphatic cyclic moiety or aromatic moiety;
- and comprises one or more moieties selected from ester, thioester, ether, thioether, and the divalent linking is free of urethane linkages.
Dependencies are inferred from the claim text.