Curable zirconia adhesive compositions for dental restorations
US8785518B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 27, 2009 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F230/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present application relates to a polymerizable dental adhesive system formulated for effective and durable bonding of zirconia based materials and restorations to dental resins and dental surfaces. According to one embodiment, a polymerizable dental adhesive system comprises a first acidic monomer comprising an ethylenically unsaturated polymerizable group or moiety of the general formula CH2═CX—C(O)— wherein X is hydrogen, methyl or a lower alkyl group, and the first polymerizable monomer further comprises a phosphoric or phosphonic acid group of general formula —OP(O)(OH)2, —OP(O)(OH), —C—P(O)(OH)2 and —C—P(O)(OH), and a second polymerizable acidic monomer comprises an ethylenically unsaturated polymerizable group or moiety of the general formula CH2═CX—C(O)— wherein X is hydrogen, methyl or a lower alkyl group, and wherein the second polymerizable acidic monomer further comprises a carboxylic acid group of the general formula —C(O)OH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.