US3971834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified acrylate resin
Assignee: Shell USA Inc
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Filing: 1975-03-27
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Granted: 1976-07-27
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Expires: 1995-03-27
Abstract
Abstract A modified photocurable acrylate resin with improved adhesion to metals is prepared by reacting a liquid polyepoxide, an ethylenically unsaturated conjugated organic carboxylic acid, and a secondary monoamine.
Inventors
- 👤 Christopher W. Uzelmeier
- 👤 Paul D. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
An ultraviolet curable acrylate resin composition with improved adhesion to metal surfaces consisting essentially of a reaction product of (i) a secondary monoamine selected from the group consisting of dimethylamine, diethylamine, methylethylamine, diisopropylamine, piperidine, toluidine, diallylamines, methylcyclohexyl amine, N-methyhydroxyl amine, methylethanolamine, butylethanolamine, N-acetylethanolamine and phenylethanolamine, (ii) acrylic acid and (iii) a polyepoxide in a ratio of between about 0.2 and about 0.9 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.1 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide wherein said polyepoxide is a glycidyl ether of 2,2-bis(4-hydroxyphenyl)propane and wherein said reaction product is prepared by contacting components (i), (ii) and (iii) at reaction temperatures of about 125°F to about 200°F.
Claim 2
Dependent Claim
124 words
An ultraviolet curable acrylate resin composition with improved adhesion to metal surfaces consisting essentially of a reaction product of (i) a secondary monoamine selected from the group consisting of dimethylamine, diethylamine, methylethylamine, diisopropylamine, piperidine, toluidine, diallylamines, methylcyclohexyl amine, N-methyhydroxyl amine, methylethanolamine, butylethanolamine, N-acetylethanolamine and phenylethanolamine, (ii) acrylic acid and (iii) a polyepoxide in a ratio of between about 0.2 and about 0.9 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.1 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide wherein said polyepoxide is a glycidyl ether of 2,2-bis(4-hydroxyphenyl)propane and wherein said reaction product is prepared by contacting components (i), (ii) and (iii) at reaction temperatures of about 125°F to about 200°F.
Claim 3
Dependent Claim
63 words
A composition according to claim 1 wherein the composition consists essentially of said secondary monoamine, (ii) said acrylic acid and (iii) said polyepoxide in a ratio of between about 0.2 and about 0.5 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.5 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide.
Claim 4
Dependent Claim
12 words
A composition according to claim 2 wherein said secondary monoamine is diisopropanolamine.
Claim 5
Independent Claim
138 words
The method of preparing an ultraviolet curable acrylate resin composition having improved adhesion to metal surfaces which comprises contacting in a reactor at a temperature of between about 125°F to about 200°F and in the absence of additional catalysts (i) a secondary monoamine selected from the group consisting of dimethylamine, diethylamine, methylethylamine, diisopropylamine, piperidine, toluidine, diallylamines, methylcyclohexyl amine, N-methylhydroxyl amine, methylethanolamine, butylethanolamine, N-acetylethanolamine and phenylethanolamine, (ii) acrylic acid and (iii) a polyepoxide in a ratio of between about 0.2 and about 0.9 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.1 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide wherein said polyepoxide is a glycidyl ether of 2,2-bis(4-hydroxyphenyl)propane and wherein said polyepoxide is contacted first with said secondary monoamine and then with said acrylic acid.
Claim 6
Independent Claim
138 words
The method of preparing an ultraviolet curable acrylate resin composition having improved adhesion to metal surfaces which comprises contacting in a reactor at a temperature of between about 125°F to about 200°F and in the absence of additional catalysts (i) a secondary monoamine selected from the group consisting of dimethylamine, diethylamine, methylethylamine, diisopropylamine, piperidine, toluidine, diallylamines, methylcyclohexyl amine, N-methylhydroxyl amine, methylethanolamine, butylethanolamine, N-acetylethanolamine and phenylethanolamine, (ii) acrylic acid and (iii) a polyepoxide in a ratio of between about 0.2 and about 0.9 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.1 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide wherein said polyepoxide is a glycidyl ether of 2,2-bis(4-hydroxyphenyl)propane and wherein said polyepoxide is contacted first with said secondary monoamine and then with said acrylic acid.
Claim 7
Dependent Claim
61 words
The method according to claim 4 which comprises contacting (i) said secondary monoamine, (ii) said acrylic acid and (iii) said polyepoxide in a ratio of between about 0.2 and about 0.5 chemical equivalents of the monoamine per chemical equivalent of the polyepoxide and between about 0.8 and about 0.5 chemical equivalents of the acrylic acid per chemical equivalent of the polyepoxide.
Claim 8
Dependent Claim
12 words
The method according to claim 5 wherein said secondary monoamine is diisopropanolamine.
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) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |