US3772062A
Expired / Lapsed
US
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Ultra-violet curable coating compositions
Assignee: BASF Corp
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Filing: 1971-11-16
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Granted: 1973-11-13
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Expires: 1991-11-16
Abstract
Abstract Novel ultra-violet curable coating compositions preferably comprising the diacrylate of an epichlorohydrin-bisphenol-A epoxy resin, neopentyl glycol diacrylate, hydroxyethyl acrylate, dicyclopentenyl acrylate and a photosensitizer. These coating compositions cure rapidly under ultra-violet light, even in the presence of oxygen, and result in hard, stain-, fade-, abrasion-, and weather-resistant coatings.
Inventors
- 👤 E Shur
- 👤 R Dabal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31971
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
23 words
The composition of claim 1 wherein the photosensitizer has a triplet energy in the range between about 42 and 85 kcal per mole.
Claim 2
Dependent Claim
41 words
The composition of claim 2 wherein (a) has an acid number of 0 - 1 mg KOH/gm, a viscosity of about 5,000 poises (Luray) and a GaRdner color of about 1, (b) is neopentyl glycol diacrylate and (d) is dicyclopentenyl acrylate.
Claim 3
Dependent Claim
23 words
The composition of claim 3 wherein the photosensitizer is selected from the group consisting of acetophenone, benzophenone, xanthone, Michler''s ketone and mixtures thereof.
Claim 4
Dependent Claim
12 words
The composition of claim 4 wherein the photosensitizer additionally contains methyl diethanolamine.
Claim 5
Dependent Claim
10 words
The composition of claim 5 wherein the photosensitizer is benzophenone.
Claim 6
Dependent Claim
44 words
The composition of claim 6 wherein the components are present in the following weight percent ranges: 16 - 60% epichlorohydrin-bisphenol-A epoxy resin diacrylate 10 - 42% neopentyl glycol diacrylate 0 - 21% hydroxyethyl acrylate 5 - 15% dicyclopentenyl acrylate 2 - 7 % photosensitizer.
Claim 7
Dependent Claim
44 words
The composition of claim 6 wherein the components are present in the following weight percent ranges: 40 - 60% epichlorohydrin-bisphenol-A epoxy resin diacrylate 15 - 25% neopentyl glycol diacrylate 10 - 20% hydroxyethyl acrylate 5 - 15% dicyclopentenyl acrylate 2 - 5 % photosensitizer.
Claim 8
Dependent Claim
20 words
The composition of claim 8 wherein the photosensitizer is a mixture of 2 parts benzophenone to 3 parts methyl diethanolamine.
Claim 9
Dependent Claim
17 words
The composition of claim 9 wherein the composition additionally contains a high butyrate content cellulose acetate butyrate.
Claim 10
Dependent Claim
38 words
The method of providing a stain-, weather-, abrasion- and fade-resistant plastic coating on a substrate comprising coating the substrate with the composition of claim 1 and then exposing the coated substrate to an effective amount of actinic radiation.
Claim 11
Dependent Claim
13 words
A substrate carrying a plastic coating comprising the cured composition of claim 1.
References Cited (Backward Citations)
US3631127A
Cited
US3597373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |