US4554336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethane modified orthodontic adhesive
Assignee: Manufacturers Hanover Trust Co
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Filing: 1983-10-28
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Granted: 1985-11-19
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Expires: 2003-10-28
Abstract
Abstract A trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR1## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 , or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR2## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 .
Inventors
- 👤 Patrick D. Kidd
- 👤 Terry L. Sterrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:34
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; A; A61; A61K; A61K6/00; A61K6/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A two-paste dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR8## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR9## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a catalyst, and a filler material; and Part B: at least 5% of said trifunctional methacrylate or acrylic terminated urethane resin blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a polymerization activator, and a filler material.
Claim 2
Dependent Claim
155 words
A two-paste dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR8## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR9## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a catalyst, and a filler material; and Part B: at least 5% of said trifunctional methacrylate or acrylic terminated urethane resin blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a polymerization activator, and a filler material.
Claim 3
Dependent Claim
129 words
A two-component dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR10## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR11## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a catalyst, and a filler material; and Part B: a solution which contains a polymerization activator.
Claim 4
Dependent Claim
129 words
A two-component dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR10## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR11## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a catalyst, and a filler material; and Part B: a solution which contains a polymerization activator.
Claim 5
Dependent Claim
129 words
A two-component dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR12## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR13## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a polymerization activator, and a filler material; and Part B: a solution which contains polymerization initiator.
Claim 6
Dependent Claim
129 words
A two-component dental adhesive composition which comprises in weight percent: Part A: at least 5% of a trifunctional methacrylate or acrylic terminated urethane resin of the following chemical structure: ##STR12## Where: R 1 is --H, --CH 3 , --CH 2 CH 3 or --CH 2 CH 2 CH 3 , R 2 is (--CH 2 CH 2 --O--) n or ##STR13## where: n=2 to 10, R 3 is a divalent organic radical obtained by removal of two isocyanato groups from an organic diisocyanate, R 4 is methylene, ethylene or propylene, and R 5 is --H, or --CH 3 , blended with up to 95% of at least one polymerizable acrylate or methacrylate monomer, a polymerization activator, and a filler material; and Part B: a solution which contains polymerization initiator.
References Cited (Backward Citations)
US3891523A
Cited
US3825518A
Cited
US3907865A
Cited
US4271223A
Cited
US4394494A
Cited
US4380432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |