Patent US5218070A successfully refreshed from Google Patents.
US5218070A
Expired / Lapsed
US
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Dental/medical composition and use
Assignee: Dentsply GmbH
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Filing: 1991-02-11
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Granted: 1993-06-08
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Expires: 2011-02-11
Abstract
Abstract The invention provides an improved dental/medical restorative/prosthetic composition employing a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula: (RO2C)x -- C4H6 -- (CO2R')y where R is an acid radical or a reactive acid derivative and R' is a polymerizable unsaturated radical having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
Inventors
- 👤 Gordon B. Blackwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:44
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/80; A61K6/884; A61K6/887; A61K6/889
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
72 words
A dental/medical restorative/prosthetic composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula: (RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.y where R is hydrogen, an acid radical containing moiety or a moiety containing a reactive acid derivative and R' is a polymerizable unsaturated ester containing radical having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
Claim 2
Dependent Claim
72 words
A dental/medical restorative/prosthetic composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula: (RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.y where R is hydrogen, an acid radical containing moiety or a moiety containing a reactive acid derivative and R' is a polymerizable unsaturated ester containing radical having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
Claim 3
Dependent Claim
40 words
The dental/medical restorative/prosthetic composition of claim 1 in the form of a dental liner or bonding agent consisting essentially of said butane compound and other active ingredients chosen from the group consisting of curing catalysts, initiators, accelerators and mixtures thereof.
Claim 4
Dependent Claim
18 words
The dental/medical restorative/prosthetic composition of claim 2 wherein said composition is one-component, system shelf-stable and visible light curable.
Claim 5
Dependent Claim
23 words
The dental/medical restorative/prosthetic composition of claim 1 in the form of a dental liner or bonding agent further comprising, curing agents and aldehyde.
Claim 6
Dependent Claim
23 words
The dental/medical restorative/prosthetic composition of claim 4 wherein said aldehyde is glutoraldehyde and said composition is one-component, system shelf-stable and visible light curable.
Claim 7
Dependent Claim
42 words
The dental/medical restorative/prosthetic composition of claim 1 in the form of a dental composite comprising said butane compound, at least one finely divided reactive filler that can react ionically with the acids or acid derivative of said butane compound and curing agent.
Claim 8
Dependent Claim
52 words
The dental/medical restorative/prosthetic composition of claim 1 in the form of a dental composite consisting essentially of said butane compound and other active ingredients chosen from the group consisting of finely divided filler which is ionically active with the acids or acid derivative of said butane compound, curing agent and mixtures thereof.
Claim 9
Dependent Claim
50 words
The dental/medical restorative/prosthetic composition of claim 1 in the form of a dental cement comprising curing agent and other ingredients chosen from the group consisting of finely divided filler which is ionically active with the acids or acid derivative of said butane compound, substantially nonionic filler, diluent and mixtures thereof.
Claim 10
Dependent Claim
19 words
The dental/medical restorative/prosthetic composition of claim 1 wherein said composition is a one-component system, shelf-stable and visible light curable.
Claim 11
Dependent Claim
16 words
The dental/medical restorative/prosthetic composition of claim 1 wherein R is H providing an acid radical CO(OH).
Claim 12
Dependent Claim
25 words
The dental/medical restorative/prosthetic composition of claim 1 wherein R is H and R' is a 2-hydroxyethylmethacrylate radical and x is 2 and y is 2.
Claim 13
Dependent Claim
26 words
The dental/medical restorative/prosthetic composition of claim 1 further comprising a inorganic particulate filler chosen from the group of glass, metal oxides, hydroxides, salts and mixtures thereof.
Claim 14
Dependent Claim
13 words
The dental/medical restorative/prosthetic composition of claim 12 wherein said filler is zinc oxide.
Claim 15
Dependent Claim
16 words
The dental/medical restorative/prosthetic composition of claim 1 further comprising a fluoride ion soluble in said composition.
Claim 16
Dependent Claim
14 words
The dental/medical restorative/prosthetic composition of claim 14 wherein said fluoride ions are amine fluorides.
Claim 17
Dependent Claim
24 words
The dental/medical restorative/prosthetic composition of claim 1 further comprising a fluoride ion eluting filler that is a source of cations reactive with said compound.
Claim 18
Dependent Claim
17 words
The dental/medical restorative/prosthetic composition of claim 1 in which said compound is butane tetracarboxylic acid bis-(2-hydroxyethylmethacrylate) ester.
Claim 19
Dependent Claim
79 words
A dental treatment comprising applying to a tooth in vivo a composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula: (RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.y where R is hydrogen, an acid containing moiety or a moiety containing a reactive acid derivative and R' is a polymerizable unsaturated ester containing moiety having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
Claim 20
Dependent Claim
79 words
A dental treatment comprising applying to a tooth in vivo a composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula: (RO.sub.2 C).sub.x --C.sub.4 H.sub.6 --(CO.sub.2 R').sub.y where R is hydrogen, an acid containing moiety or a moiety containing a reactive acid derivative and R' is a polymerizable unsaturated ester containing moiety having from 2 to 13 C and x is 2 to 3 and y is 1 to 2.
Claim 21
Dependent Claim
46 words
A dental treatment according to claim 18 wherein said treatment is the application of a dental liner or bonding agent and said composition consisting essentially of said butane compound and other active ingredients chosen from the group consisting of curing catalyst, initiators, accelerators, and mixtures thereof.
Claim 22
Dependent Claim
45 words
A dental treatment according to claim 18 wherein said treatment is the application of a dental composite and said composite comprises said butane compound, at least one finely divided filler ionically active with the acids or acid derivative of said butane compound and curing agent.
Claim 23
Dependent Claim
18 words
A dental treatment according to claim 20 further comprising fluoride ions applied as an ingredient of said composition.
Claim 24
Dependent Claim
29 words
A dental treatment according to claim 21 wherein said application involves direct application of the composition in its stored condition without mixing and curing is initiated with visible light.
Claim 25
Dependent Claim
32 words
A dental treatment according to claim 19 wherein said application involves direct application of the composition in its stored condition without mixing and curing is initiated with the application of visible light.
Claim 26
Dependent Claim
12 words
The composition of claim 1 wherein R is a hydroxyethyl methacrylate moiety.
Claim 27
Dependent Claim
19 words
The composition of claim 1 wherein R is ethoxy acrylate, ethoxy methacrylate, (iso) propoxy (meth) acrylate, or polyglycol methacrylate.
Claim 28
Dependent Claim
50 words
A dental/medical restorative/prosthetic composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula ##STR10## where R 1 and R 1 ' independently are a moiety containing reactive acid derivative which is polymerizable, unsaturated and has from 2 to 13 carbons atoms.
Claim 29
Dependent Claim
50 words
A dental/medical restorative/prosthetic composition comprising a polymerizable unsaturated substituted butane moiety with acid or reactive acid derivative functionality having the general formula ##STR10## where R 1 and R 1 ' independently are a moiety containing reactive acid derivative which is polymerizable, unsaturated and has from 2 to 13 carbons atoms.
Claim 30
Dependent Claim
10 words
The composition of claim 26 wherein R 1 is ##STR11##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |