Etchant/primer composition, etchant/primer/adhesive monomer composition, kits and methods using the same for improved bonding to dental structures
US6458869B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 30, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/887
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to an etchant/primer composition, an etchant/primer/adhesive monomer composition, kits using the same and methods using the same for improved bonding to dental structures. The etchant/primer composition comprises a compound having the formula:RN(CH2YCO2M)2wherein R=R1 or R2;R1=an aromatic group;R2=a conjugated unsaturated aliphatic group;Y=a single bond, CH2, CHCH3 or C═CH2; andeach M is independently H, an alkali metal, an alkaline earth metal, aluminum, a transition or redox metal or an alkyl group having 1 to 18 carbon atoms, with the proviso that when both M groups are alkyl groups, said compound is capable of being easily hydrolyzed, displaced, or exchanged with other reagents present in the etchant/primer composition, a polar solvent system, and nitric acid. The etchant/primer/adhesive monomer composition comprises a compound having the formula (I) as noted above, a polar solvent system, an acid selected from the group consisting of nitric acid, hydrochloric acid, citric acid, lactic acid, glycolic acid, formic acid, pyruvic acid and combinations thereof, and adhesive monomer resin, and an initiator. The above-noted compositions are appl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.