US3874906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for applying polyester-acrylate containing ionizing irradiation curable coatings
Assignee: PPG Industries Inc
•
Filing: 1972-09-22
•
Granted: 1975-04-01
•
Expires: 1992-09-22
Abstract
Abstract A method of applying and curing a polyester-acrylate containing coating composition with minimum volatility and toxic odor comprises adding to the composition N-vinyl pyrrolidone and applying the composition at low viscosity to a substrate and subjecting the coating to actinic light to cure.
Inventors
- 👤 Paul J Prucnal
- 👤 Charles B Friedlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:16
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/16; C; C09; C09D; C09D4/00; C09D4/06; D06; D06N; D06N3/00; D06N3/04; D06N3/06; D06N3/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A METHOD OF COATING A SUBSTRATE COMPRISING APPLYING TO SAID SUBSTRATE A LOW ODOR, LOW VOLATILITY, CURABLE POLYESTERACRYLATE CONTAINING COMPOSITION AND SUBJECTING THE COMPOSITION TO ACTINIC LIGHT TO CURE, SAID POLYESTER-CONTAINING COMPOSITION COMPRISING A. A POLYESTER-ACRYLATE AND B. FROM ABOUT 2 TO ABOUT 60 PERCENT BY WEIGHT BASED ON THE WEIGHT OF POLYESTER-ACRYLATE CONTAINING COMPOSITION OF N-VINYL PYRROLIDONE.
Claim 2
Independent Claim
58 words
A METHOD OF COATING A SUBSTRATE COMPRISING APPLYING TO SAID SUBSTRATE A LOW ODOR, LOW VOLATILITY, CURABLE POLYESTERACRYLATE CONTAINING COMPOSITION AND SUBJECTING THE COMPOSITION TO ACTINIC LIGHT TO CURE, SAID POLYESTER-CONTAINING COMPOSITION COMPRISING A. A POLYESTER-ACRYLATE AND B. FROM ABOUT 2 TO ABOUT 60 PERCENT BY WEIGHT BASED ON THE WEIGHT OF POLYESTER-ACRYLATE CONTAINING COMPOSITION OF N-VINYL PYRROLIDONE.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the composition also comprises a photosensitizer.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein the viscosity of the composition is less than about 1000 cps.
Claim 5
Dependent Claim
11 words
The method of claim 1 wherein the composition additionally contains pigments.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein the substrate is a cellulosic material.
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein the substrate is hardboard.
Claim 8
Dependent Claim
11 words
The method of claim 1 wherein the substrate is particle board.
Claim 9
Dependent Claim
18 words
The method of claim 1 in which said polyester-acrylate containing composition comprises A. a polyester-acrylate of the formula
Claim 10
Dependent Claim
37 words
The method of claim 1 which said polyester-acrylate containing composition comprises A. a polyester-acrylate formed by reaction of acrylic or methacrylic acid with a polyglycidyl ether of a polyphenol or a polyhydric alcohol, and, B. N-vinyl pyrrolidone.
References Cited (Backward Citations)
US3669716A
Cited
US3455801A
Cited
US3468861A
Cited
US3520714A
Cited
US3531547A
Cited
US3578614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |