Patent US5091441A successfully refreshed from Google Patents.
US5091441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental composition
Assignee: Kuraray Co Ltd
•
Filing: 1989-07-13
•
Granted: 1992-02-25
•
Expires: 2009-07-13
Abstract
Abstract The invention provides dental compositions comprising a radical-polymerizable monomer and an organic peroxide, which are dissolved in a volatile tertiary alochol. Also provided are the compositions packed in a plastic contains, having a long shelf life.
Inventors
- 👤 Ikuo Omura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:05
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/60; A61K6/62; A61K6/30; Y; Y10; Y10S; Y10S220/00; Y10S220/903; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
A dental primer or adhesive composition comprising a free radical-polymerizable monomer and an organic peroxide, which are dissolved in a volatile tertiary alcohol, the ratios being 0.1 to 300 weight parts of the monomer and 0.01 to 10 weight parts of the organic peroxide based on 100 weight parts of the tertiary alcohol, said composition being contained in an oxygen-permeable plaster container.
Claim 2
Dependent Claim
62 words
A dental primer or adhesive composition comprising a free radical-polymerizable monomer and an organic peroxide, which are dissolved in a volatile tertiary alcohol, the ratios being 0.1 to 300 weight parts of the monomer and 0.01 to 10 weight parts of the organic peroxide based on 100 weight parts of the tertiary alcohol, said composition being contained in an oxygen-permeable plaster container.
Claim 3
Dependent Claim
27 words
The composition of claim 1, wherein said free radical-polymerizable monomer is a (meth)acrylate monomer, said organic peroxide is dibenzoyl peroxide and said tertiary alcohol is tertiary butanol.
Claim 4
Dependent Claim
20 words
The composition of claim 1, wherein the monomer is a (meth)acrylate monomer which is conventionally used for a dental material.
Claim 5
Dependent Claim
54 words
The composition of claim 1, wherein the monomer is selected from the group consisting of methyl (meth)acrylate, ethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, ethylene glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, 2,2-bis[4-(3-methacryloyloxy-2-hydroxypropoxy)phenyl]propane, 2,2-bis[(meth)acryloyoxypolyethoxyphenyl]propane, trimethylolpropane tri(meth)acrylate, (meth)acrylic acid, 2-methacryloyloxyethyl dihydrogen phosphate, 10-methacryloyloxydecyl dihydrogen phosphate, bis[2-methacryloyloxyethyl] hydrogen phosphate, 4-(2-methacryloyloxyethoxycarbonyl]phthalic acid anhydride, 4-[2-methacryloyloxyethoxycarbonyl]phthalic acid, 11,11-dicarboxyundecyl(meth)acrylate, 3-methacryloyloxypropyltrimethoxysilane and 2-(N,N-dimethylamino)ethylmethacrylate.
Claim 6
Dependent Claim
36 words
The composition of claim 1, wherein the organic peroxide is selected from the group consisting of dibenzoyl peroxide, di-p-chlorobenzoyl peroxide, di-2,4-dichlorobenzoyl peroxide, tertiary butyl peroxybenzoate, methylethyl ketone peroxide, ditertiary butyl peroxide, dicumyl peroxide and cumene hydroperoxide.
Claim 7
Dependent Claim
25 words
The composition of claim 1, wherein the tertiary alcohol is selected from the group consisting of tert-butanol, tert-pentanol, 3-methyl-3-pentanol, 3-ethyl-3-pentanol, 1-methylcyclohexanol, 2-methyl-2-heptanol, 3-methyl-3-heptanol and 4-methyl-4-heptanol.
Claim 8
Dependent Claim
85 words
The composition of claim 1, wherein the monomer is selected from the group consisting of methyl (meth)acrylate, ethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, ethylene glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, 2,2-bis[4-(3-methacryloyloxy-2-hydroxypropoxy)phenyl]propane, 2,2-bis[(meth)acryloyoxypolyethoxyphenyl]propane, trimethylolpropane tri(meth)acrylate, (meth)acrylic acid, 2-methacryloyloxyethyl dihydrogen phosphate, 10-methacryloyloxydecyl dihydrogen phosphate, bis[2-methacryloyloxyethyl] hydrogen phosphate, 4-(2-methacryloyloxyethoxycarbonyl]phthalic acid anhydride, 4-[2-methacryloyloxyethoxycarbonyl]phthalic acid, 11,11-dicarboxyundecyl(meth)acrylate, 3-methacryloyloxypropyltrimethoxysilane and 2-(N,N-dimethylamino)ethylmethacrylate, and the organic peroxide is selected from the group consisting of dibenzoyl peroxide, di-p-chlorobenzoyl peroxide, di-2,4-dichlorobenzoyl peroxide, tertiary butyl peroxybenzoate, methylethyl ketone peroxide, ditertiary butyl peroxide, dicumyl peroxide and cumene hydroperoxide.
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) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |