US4398007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denture-base resin composition and method for using the same
Assignee: GC Corp
•
Filing: 1980-10-22
•
Granted: 1983-08-09
•
Expires: 2000-10-22
Abstract
Abstract The denture-base resin composition of the present invention contains a liquid component obtained by incorporation of 0.5 to 20% by weight of a particular silane compound and 0.5 to 10% by weight of a unsaturated carboxylic acid into a methyl methacrylate monomer. Examples of the silane compound used in the present invention includes γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-methacryloxypropyltriethoxysilane, etc. The liquid component may be mixed with a methyl methacrylate polymer in a mixing ratio (by weight) of 1:3 to 3:1.
Inventors
- 👤 Takao Kubota
- 👤 Shigenobu Kusakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/14; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; C08F2/00; C08F2/44
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
A denture-base resin composition comprising a methyl methacrylate monomer containing 0.5 to 20% by weight of a particular silane compound expressed by the general formula: ##STR7## wherein D: a hydrolyzable group n: an integer of 1, 2 or 3 b: an integer of 0, 1 or 2 n+b: an integer of 1, 2 or 3 R': is a monovalent hydrocarbon group R: an alkylene group having 1 to 4 carbon atoms c: an integer of 0 to 1 ##STR8## wherein X: a hydrogen atom or a hydrocarbon group having 1 to 6 carbon atoms, and mixed with 0.5 to 10% by weight of a unsaturated carboxylic acid.
Claim 2
Dependent Claim
107 words
A denture-base resin composition comprising a methyl methacrylate monomer containing 0.5 to 20% by weight of a particular silane compound expressed by the general formula: ##STR7## wherein D: a hydrolyzable group n: an integer of 1, 2 or 3 b: an integer of 0, 1 or 2 n+b: an integer of 1, 2 or 3 R': is a monovalent hydrocarbon group R: an alkylene group having 1 to 4 carbon atoms c: an integer of 0 to 1 ##STR8## wherein X: a hydrogen atom or a hydrocarbon group having 1 to 6 carbon atoms, and mixed with 0.5 to 10% by weight of a unsaturated carboxylic acid.
Claim 3
Dependent Claim
21 words
The denture-base resin composition as recited in claim 1, in which the unsaturated carboxylic acid used is a unsaturated monocarboxylic acid.
Claim 4
Dependent Claim
21 words
The denture-base resin composition as recited in claim 1, in which the unsaturated carboxylic acid used is a unsaturated polycarboxylic acid.
Claim 5
Dependent Claim
27 words
The denture-based resin composition as recited in claim 2 or 3, in which the methyl methacrylate monomer contains 0.1 to 5% by weight of a cross-linking agent.
References Cited (Backward Citations)
US3706697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |