Patent US4077858A successfully refreshed from Google Patents.
US4077858A
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US
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Completely polymerized ultraviolet cured coatings
Assignee: Celanese Corp
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Filing: 1976-10-04
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Granted: 1978-03-07
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Expires: 1996-10-04
Abstract
Abstract The use of an aliphatic saturated ether as a promoter to insure complete polymerization of residual unsaturation in ultraviolet curable coating compositions is disclosed.
Inventors
- 👤 John R. Costanza
- 👤 George L. Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:20
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
In an ultraviolet coating composition containing, based on the total weight of the system, about 30 to about 95 percent of an alpha beta ethylenically unsaturated vinyl polymerizable compound containing at least about 2 sites of vinyl polymerizable unsaturation, up to about 65 percent, by weight, on the same basis, of an alpha beta ethylenically unsaturated vinyl polymerizable compound containing a single site of alpha beta ethylenic unsaturation, and about 0.01 to about 15 percent, on the same basis, of an ultraviolet photoinitiator, the improvement of which comprises utilizing about 5 to about 50 percent, by weight, based on the total ultraviolet curable system, of an aliphatic saturated ether containing no other groups interferingly reactive with the ultraviolet cross-linking mechanism.
Claim 2
Dependent Claim
120 words
In an ultraviolet coating composition containing, based on the total weight of the system, about 30 to about 95 percent of an alpha beta ethylenically unsaturated vinyl polymerizable compound containing at least about 2 sites of vinyl polymerizable unsaturation, up to about 65 percent, by weight, on the same basis, of an alpha beta ethylenically unsaturated vinyl polymerizable compound containing a single site of alpha beta ethylenic unsaturation, and about 0.01 to about 15 percent, on the same basis, of an ultraviolet photoinitiator, the improvement of which comprises utilizing about 5 to about 50 percent, by weight, based on the total ultraviolet curable system, of an aliphatic saturated ether containing no other groups interferingly reactive with the ultraviolet cross-linking mechanism.
Claim 3
Dependent Claim
23 words
The composition of claim 1 in admixture with up to about 50 percent, by weight, based on the photoinitiator, of an amine activator.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein the ether is selected from polyethylene glycol ethers, polypropylene glycol ethers, or polybutylene glycol ethers.
Claim 5
Dependent Claim
12 words
The composition of claim 3 wherein the ether is a polyethylene glycol.
References Cited (Backward Citations)
US3380831A
Cited
US3759807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |