US4072592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable coating
Assignee: Valspar Corp
•
Filing: 1975-09-30
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Granted: 1978-02-07
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Expires: 1995-09-30
Abstract
Abstract A radiation curable coating composition for various substrates containing an adduct of acrylic acid and an epoxy resin (which may be modified with an anhydride, such as maleic anhydride), and a reactive acrylate monomer vehicle. The coating composition can be pigmented and can also contain additives commonly used in coatings, such as wetting agents and flow control agents. The coating composition does not require the usual hydrocarbon vehicles that give rise to air pollution problems. Surface gloss of a UV cured film obtained from a pigmented coating composition can be increased by using a photosensitizer combination of 2-chlorothioxanthone and a phenyl ketone, such as benzophenone. Adhesion of a cured coating is improved by replacing the tertiary amine co-sensitizer, at least in part, with dimethylaminoethyl acrylate.
Inventors
- 👤 George B. Due
- 👤 John P. Guarino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:48
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
68 words
A radiation curable coating composition that comprises, by weight of said composition, 10-75% of a diacrylate of a diglycidyl ether of a bisphenol, or of a diacrylate of a diglycidyl ether of a bisphenol further esterfied with 0.1-1 mole, per mole of said diacrylate, of a dicarboxylic acid anhydride to form an esterified product having an acid number of 10-40, and 25-90% of an ester of acrylic acid.
Claim 2
Dependent Claim
68 words
A radiation curable coating composition that comprises, by weight of said composition, 10-75% of a diacrylate of a diglycidyl ether of a bisphenol, or of a diacrylate of a diglycidyl ether of a bisphenol further esterfied with 0.1-1 mole, per mole of said diacrylate, of a dicarboxylic acid anhydride to form an esterified product having an acid number of 10-40, and 25-90% of an ester of acrylic acid.
Claim 3
Dependent Claim
12 words
The coating composition of claim 1, wherein said bisphenol is bisphenol A.
Claim 4
Dependent Claim
12 words
The coating composition of claim 1, wherein said anhydride is maleic anhydride.
Claim 5
Dependent Claim
12 words
The coating composition of claim 2, wherein said anhydride is maleic anhydride.
Claim 6
Dependent Claim
12 words
The coating composition of claim 2, wherein said anhydride is Δ4-tetrahydrophthalic anhydride.
Claim 7
Dependent Claim
12 words
The coating composition of claim 1, wherein said ester is hydroxypropyl acrylate.
Claim 8
Dependent Claim
12 words
The coating composition of claim 2, wherein said ester is hydroxypropyl acrylate.
Claim 9
Dependent Claim
12 words
The coating composition of claim 3, wherein said ester is hydroxypropyl acrylate.
Claim 10
Dependent Claim
12 words
The coating composition of claim 4, wherein said ester is hydroxypropyl acrylate.
Claim 11
Dependent Claim
12 words
The coating composition of claim 1, wherein said ester is hydroxyethyl acrylate.
Claim 12
Dependent Claim
12 words
The coating composition of claim 2, wherein said ester is hydroxyethyl acrylate.
Claim 13
Dependent Claim
32 words
The coating composition of claim 1, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of a photosensitizer and 0-6% of a tertiary amine co-sensitizer.
Claim 14
Dependent Claim
17 words
The coating composition of claim 12, wherein said photosensitizer is 2-chlorothioxanthone and said tertiary amine is methyldiethanolamine.
Claim 15
Dependent Claim
28 words
The coating composition of claim 8, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of 2-chlorothioxanthone and 0-6% of methyldiethanolamine.
Claim 16
Dependent Claim
28 words
The coating composition of claim 9, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of 2-chlorothioxanthone and 0-6% of methyldiethanolamine.
Claim 17
Dependent Claim
28 words
A coating composition of claim 11, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of 2-chlorothioxanthone and 0-6% of methyldiethanolamine.
Claim 18
Dependent Claim
28 words
The coating composition of claim 1, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of 2-chlorothioxanthone and 0-6% of triethanolamine.
Claim 19
Dependent Claim
28 words
The coating composition of claim 2, wherein said coating is curable by UV light and contains, by weight of said composition, 0.1-6% of 2-chlorothioxanthone and 0-6% of triethanolamine.
Claim 20
Dependent Claim
12 words
The coating composition of claim 1, wherein said coating contains a pigment.
Claim 21
Dependent Claim
13 words
The coating composition of claim 1, wherein said coating contains titanium dioxide pigment.
Claim 22
Dependent Claim
13 words
The coating composition of claim 6, wherein said coating contains titanium dioxide pigment.
Claim 23
Dependent Claim
13 words
The coating composition of claim 9, wherein said coating contains titanium dioxide pigment.
Claim 24
Dependent Claim
13 words
The coating composition of claim 12, wherein said coating contains titanium dioxide pigment.
Claim 25
Dependent Claim
13 words
The coating composition of claim 14, wherein said coating contains titanium dioxide pigment.
Claim 26
Dependent Claim
13 words
The coating composition of claim 15, wherein said coating contains titanium dioxide pigment.
Claim 27
Dependent Claim
13 words
The coating composition of claim 16, wherein said coating contains titanium dioxide pigment.
Claim 28
Dependent Claim
13 words
The coating composition of claim 18, wherein said coating contains titanium dioxide pigment.
Claim 29
Dependent Claim
10 words
A substrate coated with the coating composition of claim 1.
Claim 30
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 2.
Claim 31
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 4.
Claim 32
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 9.
Claim 33
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 14.
Claim 34
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 21.
Claim 35
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 20.
Claim 36
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 22.
Claim 37
Dependent Claim
11 words
A metal substrate coated with the coating composition of claim 27.
Claim 38
Dependent Claim
13 words
The coating composition of claim 1, wherein said ester is a carbamoyloxyalkyl acrylate.
Claim 39
Dependent Claim
13 words
The coating composition of claim 2, wherein said ester is a carbamoyloxyalkyl acrylate.
Claim 40
Dependent Claim
13 words
The coating composition of claim 4, wherein said ester is a carbamoyloxyalkyl acrylate.
Claim 41
Dependent Claim
12 words
The coating composition of claim 1, wherein said ester is butylcarbamoyloxyethyl acrylate.
Claim 42
Dependent Claim
12 words
The coating composition of claim 2, wherein said ester is butylcarbamoyloxyethyl acrylate.
Claim 43
Dependent Claim
13 words
The coating composition of claim 12, wherein said photosensitizer is benzoin isobutyl ether.
Claim 44
Dependent Claim
13 words
The coating composition of claim 12, wherein said photosensitizer is benzoin isopropyl ether.
Claim 45
Dependent Claim
11 words
The coating composition of claim 12, wherein said photosensitizer is 4'-t-butyl-2,2,2-trichloroacetophenone.
Claim 46
Dependent Claim
12 words
The coating composition of claim 42, wherein said ester is butylcarbamoylethyl acrylate.
Claim 47
Dependent Claim
12 words
The coating composition of claim 43, wherein said ester is butylcarbamoylethyl acrylate.
Claim 48
Dependent Claim
12 words
The coating composition of claim 44, wherein said ester is butylcarbamoylethyl acrylate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |