US4064026A
Expired / Lapsed
US
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Polyepoxide ether polyacrylate mixtures
Assignee: Valspar Corp
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Filing: 1976-04-12
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Granted: 1977-12-20
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Expires: 1996-04-12
Abstract
Abstract Liquid mixtures which are curable by exposure to ultraviolet light when appropriately photosensitized are provided by etherifying a polyepoxide with an at least 25% stoichiometric excess of an hydroxy alkyl ester of an alpha, beta-monoethylenically unsaturated monocarboxylic acid, expecially hydroxy ethyl acrylate. The unreacted hydroxy alkyl ester is then consumed by reaction with at least 1 molar equivalent of a monoanhydride, such as a monoepoxide, a lactone, or a monoisocyante.
Inventors
- 👤 Marvin L. Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:04
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1494; C08G59/1433; C08G59/1438; C08G59/1455
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A liquid mixture comprising polyethylenic polyepoxide polyether produced by etherifying a polyepoxide having an epoxy functionality of at least 1.2 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess, based on the epoxy group, of an hydroxy alkyl ester of an alpha, beta-monoethyenically unsaturated monocarboxylic acid, and then reacting the unreacted hydroxy alkyl ester with at least one molar equivalent of a monoanhydride selected from monoexpoides, lactones, monoisocyanates, and mixtures thereof, to substantially consume said unreacted hydroxy alkyl ester.
Claim 2
Dependent Claim
86 words
A liquid mixture comprising polyethylenic polyepoxide polyether produced by etherifying a polyepoxide having an epoxy functionality of at least 1.2 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess, based on the epoxy group, of an hydroxy alkyl ester of an alpha, beta-monoethyenically unsaturated monocarboxylic acid, and then reacting the unreacted hydroxy alkyl ester with at least one molar equivalent of a monoanhydride selected from monoexpoides, lactones, monoisocyanates, and mixtures thereof, to substantially consume said unreacted hydroxy alkyl ester.
Claim 3
Dependent Claim
44 words
A mixture as recited in claim 1 in which said polyepoxide is a diglycidyl ether having a molecular weight in the range of 350-600 and said monoanhydride is used in an amount of at least 1.5 moles per mole of unreacted hydroxy alkyl ester.
Claim 4
Dependent Claim
18 words
A mixture as recited in claim 1 in which said hydroxy alkyl ester carries a primary hydroxy group.
Claim 5
Dependent Claim
93 words
A liquid mixture containing less than 10% of volatile organic solvent and comprising polyepoxide ether polyacrylate produced by etherifying a polyepoxide having an epoxy functionality of at least 1.4 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess based on the epoxy group of an hydroxy alkyl acrylate to consume said epoxy functionality, and then reacting the unreacted hydroxyl alkyl acrylate with at least one molar equivalent of a monoanhydride selected from monoepoxides, lactones, monoisocyanates, and mixtures thereof to substantially consume said unreacted hydroxy alkyl acrylate.
Claim 6
Dependent Claim
93 words
A liquid mixture containing less than 10% of volatile organic solvent and comprising polyepoxide ether polyacrylate produced by etherifying a polyepoxide having an epoxy functionality of at least 1.4 and a molecular weight in the range of 350-4000, with an at least 25% stoichiometric excess based on the epoxy group of an hydroxy alkyl acrylate to consume said epoxy functionality, and then reacting the unreacted hydroxyl alkyl acrylate with at least one molar equivalent of a monoanhydride selected from monoepoxides, lactones, monoisocyanates, and mixtures thereof to substantially consume said unreacted hydroxy alkyl acrylate.
Claim 7
Dependent Claim
18 words
A liquid mixture as recited in claim 4 in which said hydroxy alkyl acrylate is hydroxy ethyl acrylate.
Claim 8
Dependent Claim
37 words
A liquid mixture as recited in claim 5 in which said polyepoxide is a diglycidyl ether of a bisphenol having a molecular weight in the range of 350-600 and an epoxy functionally in the range of 1.4-2.0.
Claim 9
Dependent Claim
27 words
A liquid mixture as recited in claim 5 in which at least 3 moles of monoepoxide or lactone are used per mole of unreacted hydroxy ethyl acrylate.
Claim 10
Dependent Claim
15 words
A liquid mixture as recited in claim 5 in which said monoanhydride is a monoepoxide.
Claim 11
Dependent Claim
15 words
A liquid mixture as recited in claim 8 in which said monoepoxide comprises propylene oxide.
Claim 12
Dependent Claim
24 words
A liquid mixture as recited in claim 5 in which the etherification reaction is carried out in the presence of a Lewis acid catalyst.
Claim 13
Dependent Claim
16 words
A liquid mixture as recited in claim 10 in which the catalyst is boron trifluoride etherate.
Claim 14
Dependent Claim
45 words
A liquid mixture as recited in claim 5 in which the functionality of the mixture is increased by prereaction with up to about 5% of the weight of the mixture of an organic compound containing a plurality of groups which will adduct with reactive hydrogen.
Claim 15
Dependent Claim
16 words
A liquid mixture as recited in claim 1 in which said polyepoxide is an aliphatic polyepoxide.
Claim 16
Dependent Claim
20 words
An ultraviolet-curable liquid mixture comprising the liquid mixture of claim 4 and photosensitizer rendering the composition sensitive to ultraviolet light.
Claim 17
Dependent Claim
15 words
A liquid mixture as recited in claim 5 in which said monoanhydride is a monoisocyanate.
Claim 18
Dependent Claim
14 words
A liquid mixture as recited in claim 15 in which said monoisocyanate is butylisocyanate.
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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |