Patent US3063455A successfully refreshed from Google Patents.
Patent EP0084407A2 successfully refreshed from Google Patents.
EP0084407A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Dentin and enamel adhesive
Assignee: 3M Co
•
Filing: 1983-01-05
•
Granted: —
•
Expires: 2003-01-05
Abstract
Abstract Dental liner and primer compositions having improved adhesion to dentin and containing a metal dissolved in a polar organic solvent, said metal being selected from Fe, Cu, Mn, Co, Sn, Cr, Ni, and Zn.
Inventors
- 👤 James E. Bunker
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
62 words
A dental bonding composition comprising a mixture of: (a) polymerizable phosphorus compound, (b) sulfur compound having sulfur in the +2 or +4 oxidation state, (c) tertiary amine, (d) polymerization catalyst, and (e) diluent, characterized in that said composition contains an effective amount of a metal selected from Fe, Cu, Mn, Co, Sn, Cr, Ni, and Zn, dissolved in a polar organic solvent.
Claim 2
Dependent Claim
62 words
A dental bonding composition comprising a mixture of: (a) polymerizable phosphorus compound, (b) sulfur compound having sulfur in the +2 or +4 oxidation state, (c) tertiary amine, (d) polymerization catalyst, and (e) diluent, characterized in that said composition contains an effective amount of a metal selected from Fe, Cu, Mn, Co, Sn, Cr, Ni, and Zn, dissolved in a polar organic solvent.
Claim 3
Dependent Claim
64 words
Dental bonding composition according to Claim 1, further characterized in that said polymerizable phosphorus compound comprises an organic ester of one or more acids of phosphorus, said ester having chlorine or bromine bonded directly to phosphorus, and the organic radical of said ester containing at least one polymerizable functional group, or said polymerizable phosphorus compound has olefinic functionality and contains at least one moiety.
Claim 4
Dependent Claim
21 words
Dental bonding composition according to Claim 2, further characterized in that said polymerizable phosphorus compound comprises a compound of the formula
Claim 5
Dependent Claim
29 words
Dental bonding composition according to any preceeding claim, further characterized in that said metal is an ion selected from Fe +3 , Cu+2, M n +2 , and Co+2.
Claim 6
Dependent Claim
18 words
Dental bonding composition according to any preceeding claim, further characterized in that said metal comprises Fe +3 ion.
Claim 7
Dependent Claim
43 words
Dental bonding composition according to any preceeding claim, further characterized in that the concentration of metal in said dental bonding composition is between 5.2 x 10- 5 and 1.9 x 10- 2 weight percent based upon the weight of said polymerizable phosphorus compound.
Claim 8
Dependent Claim
57 words
Dental bonding compositions according to any preceeding claim, further characterized in that said metal comprises Fe +3 ion and the concentration of said Fe +3 ion in said polar organic solvent is between 3.2 x 10' 4 and 1.2 x 10 -1 grams of iron per liter of solvent, based upon an equivalent weight of elemental iron.
Claim 9
Dependent Claim
39 words
Dental bonding compositions according to Claim 7, further characterized in that said polar organic solvent comprises ethanol and said concentration is between about 3.2 x 10 -3 and 3.2 x 10- 2 grams of iron per liter of solvent.
Claim 10
Independent Claim
35 words
A method for lining or priming dentin prior to applying a dental restorative, composite, or adhesive composition thereto, characterized in that a dental bonding composition according to any preceeding claim is applied to said dentin.
Claim 11
Dependent Claim
26 words
A method according to Claim 9, further characterized in that said dental restorative, composite, or adhesive composition is applied to said dental bonding composition and hardened.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.