US4713403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental composite resin composition
Assignee: GC Corp
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Filing: 1986-03-24
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Granted: 1987-12-15
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Expires: 2006-03-24
Abstract
Abstract A dental composite resin composition is disclosed, which comprises as main components a polymerizable monomer, an inorganic and/or organic filler, a gold powder and/or a gold-color alloy powder, and a polymerization catalyst. The dental composite resin composition of the present invention is useful as a filling material for repairing a tooth cavity, which has a gold-color luster and exhibits an excellent abrasion resistance as well as an excellent x-ray contrast.
Inventors
- 👤 Bunsaku Yoshida
- 👤 Kentaro Tomioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/80; A61K6/84; A61K6/844; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
45 words
A dental composite resin composition comprising as main components a polymerizable monomer, which is a monofunctional or polyfunctional acrylate or methacrylate, an inorganic filler and/or an organic filler, a gold powder and/or a gold-color alloy powder having a gold-color luster, and a redox polymerization catalyst.
Claim 2
Dependent Claim
45 words
A dental composite resin composition comprising as main components a polymerizable monomer, which is a monofunctional or polyfunctional acrylate or methacrylate, an inorganic filler and/or an organic filler, a gold powder and/or a gold-color alloy powder having a gold-color luster, and a redox polymerization catalyst.
Claim 3
Dependent Claim
32 words
A dental composite resin composition as claimed in claim 1, wherein the content of said gold powder and/or gold-color alloy powder is in the range of from 1 to 60% by weight.
Claim 4
Dependent Claim
27 words
A dental composite resin composition as claimed in claim 1, wherein the particle size of said gold powder and/or gold-color alloy powder is 50 μm or less.
Claim 5
Dependent Claim
27 words
A dental composite resin composition as claimed in claim 2, wherein the particle size of said gold powder and/or gold-color alloy powder is 50 μm or less.
Claim 6
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 1, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 7
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 2, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 8
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 3, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 9
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 4, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 10
Dependent Claim
50 words
A dental composite resin composition as claimed in claim 1, wherein said gold powder and/or gold-color alloy powder is selected from the group consisting of gold powder, gold base alloy powder, Cu-Zn base alloy powder, Cu-Al base alloy powder, In-Pd base alloy powder, Zn-Pd base alloy powder and TiN powder.
Claim 11
Dependent Claim
32 words
A dental composite resin composition as claimed in claim 9, wherein the content of said gold powder and/or gold-color alloy powder is in the range of from 1 to 60% by weight.
Claim 12
Dependent Claim
27 words
A dental composite resin composition as claimed in claim 9, wherein the particle size of said gold powder and/or gold-color alloy powder is 50 μm or less.
Claim 13
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 9, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 14
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 10, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
Claim 15
Dependent Claim
28 words
A dental composite resin composition as claimed in claim 11, wherein said gold powder and/or gold-color alloy powder is subjected to surface treatment with a silane coupling agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |