US4125503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet curing emulsion systems
Assignee: Valspar Corp
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Filing: 1976-10-12
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Granted: 1978-11-14
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Expires: 1996-10-12
Abstract
Abstract Ultraviolet curable aqueous emulsion coating compositions are provided in which the discontinuous phase of the emulsion is constituted by liquid droplets of ultraviolet curable polyethylenically unsaturated material (such as an epoxy polyacrylate dissolved in liquid monoacrylate monomer). These liquid droplets are stabilized in the emulsion by means of a polyoxypropylene-polyoxyethylene emulsifier which serves as a cosensitizer, especially when the photosensitizer is a phenyl ketone, such as benzophenone.
Inventors
- 👤 William H. McCarty
- 👤 Carlos J. Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C09; C09D; C09D163/00; C09D163/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
93 words
An ultraviolet curable aqueous emulsion coating composition consisting essentially of water having emulsified therein liquid droplets comprising ultraviolet curable water insoluble extremely viscous to solid polyethylenically unsaturated resin in solution in ethylenically unsaturated liquid monomer, the ratio of polyethylenically unsaturated resin to liquid monomer being in the range of 5:95 to 95:5, said liquid droplets containing a phenyl ketone photosensitizer and being stabilized in the emulsion by means of a polyoxypropylene-polyoxyethylene emulsifier in an amount of about 0.1% to about 15%, based on the weight of resin which it is desired to emulsify.
Claim 2
Dependent Claim
93 words
An ultraviolet curable aqueous emulsion coating composition consisting essentially of water having emulsified therein liquid droplets comprising ultraviolet curable water insoluble extremely viscous to solid polyethylenically unsaturated resin in solution in ethylenically unsaturated liquid monomer, the ratio of polyethylenically unsaturated resin to liquid monomer being in the range of 5:95 to 95:5, said liquid droplets containing a phenyl ketone photosensitizer and being stabilized in the emulsion by means of a polyoxypropylene-polyoxyethylene emulsifier in an amount of about 0.1% to about 15%, based on the weight of resin which it is desired to emulsify.
Claim 3
Dependent Claim
41 words
An emulsion as recited in claim 1 in which said polyethylenically unsaturated resin is a resin having a plurality of acrylate ester groups and said liquid monomer is a monofunctional ester of acrylic acid having from 4 to 20 carbon atoms.
Claim 4
Dependent Claim
22 words
An emulsion as recited in claim 2 in which said resin is an epoxy resin having a plurality of acrylate ester groups.
Claim 5
Dependent Claim
22 words
An emulsion as recited in claim 3 in which said epoxy resin is a diacrylate of a diglycidyl ether of a bisphenol.
Claim 6
Dependent Claim
13 words
An emulsion as recited in claim 1 in which said photosensitizer is benzophenone.
Claim 7
Dependent Claim
24 words
An emulsion as recited in claim 4 in which said diglycidyl ether of a bisphenol has a molecular weight in the range of 350-600.
Claim 8
Dependent Claim
22 words
An emulsion as recited in claim 4 in which said diacrylate is a diether of an hydroxy acrylate with said diglycidyl ether.
Claim 9
Dependent Claim
23 words
An emulsion as recited in claim 1 in which said emulsifier contains a poly(oxypropylene) hydrophobe and an ethylene oxide content of from 50-85%.
Claim 10
Dependent Claim
84 words
An ultraviolet curable aqueous emulsion coating composition comprising water having emulsified therein liquid droplets consisting essentially of epoxy resin having a plurality of acrylate ester groups and a phenyl ketone photosensitizer dissolved in a liquid monoacrylate, said liquid droplets being stabilized in the emulsion by means of a polyoxypropylene-polyoxyethylene emulsifier in an amount of from 2-10%, based on the weight of resin which it is desired to emulsify, said monoacrylate being a monofunctional ester of acrylic acid having from 5 to 20 carbon atoms.
Claim 11
Dependent Claim
84 words
An ultraviolet curable aqueous emulsion coating composition comprising water having emulsified therein liquid droplets consisting essentially of epoxy resin having a plurality of acrylate ester groups and a phenyl ketone photosensitizer dissolved in a liquid monoacrylate, said liquid droplets being stabilized in the emulsion by means of a polyoxypropylene-polyoxyethylene emulsifier in an amount of from 2-10%, based on the weight of resin which it is desired to emulsify, said monoacrylate being a monofunctional ester of acrylic acid having from 5 to 20 carbon atoms.
References Cited (Backward Citations)
US3945964A
Cited
US3856744A
Cited
US3945833A
Cited
US3957741A
Cited
US4003751A
Cited
US3989644A
Cited
US4012559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-13 | 1982-05-15 | 1982-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-13 | 1986-05-15 | 1986-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-13 | 1990-05-15 | 1990-11-14 | $7700.00 | Window Closed / Lapsed |