US4289798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reducing surface gloss
Assignee: Armstrong World Industries Inc
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Filing: 1980-04-14
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Granted: 1981-09-15
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Expires: 2000-04-14
Abstract
Abstract This invention pertains to a method and apparatus for producing a cured resinous coating which exhibits a reduced gloss level. In a preferred embodiment, the cured resinous coating which exhibits a reduced gloss level is a wear resistant coating and is superimposed on a resilient floor covering material.
Inventors
- 👤 George E. Bagley
- 👤 Willard E. McCreary
- 👤 Werner Rueggeberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; B05D3/061; B05D3/065; B05D3/067; B41; B41M; B41M7/00; B41M7/0045; H; H01; H01T; H01T19/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A method for producing a radiant energy cured resinous coating having a reduced gloss level, wherein said coating does not require the presence of flatting pigments to achieve gloss reduction, which method comprises: (a) coating the surface of a substrate with a liquid resinous coating composition curable by radiant energy; (b) treating at least a portion of the surface of the liquid resinous coating with a corona discharge sufficient to reduce the gloss level of the coating in the treated portion; and (c) exposing the liquid resinous coating having a reduced gloss level to a dosage of radiant energy sufficient to polymerize the coating and set the reduced gloss level.
Claim 2
Independent Claim
110 words
A method for producing a radiant energy cured resinous coating having a reduced gloss level, wherein said coating does not require the presence of flatting pigments to achieve gloss reduction, which method comprises: (a) coating the surface of a substrate with a liquid resinous coating composition curable by radiant energy; (b) treating at least a portion of the surface of the liquid resinous coating with a corona discharge sufficient to reduce the gloss level of the coating in the treated portion; and (c) exposing the liquid resinous coating having a reduced gloss level to a dosage of radiant energy sufficient to polymerize the coating and set the reduced gloss level.
Claim 3
Dependent Claim
27 words
The method of claim 1 in which said liquid resinous coating composition is a free radical initiated ethylenically unsaturated polymerizable coating composition fully curable by ultraviolet light.
Claim 4
Dependent Claim
26 words
The method of claim 1 in which said liquid resinous coating composition is a free radical initiated polyene-polythiol polymerizable coating composition fully curable by ultraviolet light.
Claim 5
Dependent Claim
30 words
The method of claim 1 in which said corona discharge is produced by ionizing a gas or gas mixture which contains water vapor at more than about 25% relative humidity.
Claim 6
Dependent Claim
20 words
The method of claim 1 in which said substrate is a resilient floor covering material to be wear layer coated.
Claim 7
Independent Claim
140 words
A method for producing a combined radiant energy and moisture cured resinous coating having a reduced gloss level, wherein said coating does not require the presence of flatting pigments to achieve gloss reduction, which method comprises: (a) coating the surface of a substrate with a liquid resinous coating composition curable by a combined radiant energy and moisture cure; (b) treating at least a portion of the surface of the liquid resinous coating with a corona discharge sufficient to reduce the gloss level of the coating in the treated portion; (c) exposing the liquid resinous coating having a reduced gloss level to a dosage of radiant energy sufficient to polymerize the radiant energy curable components of the coating and set the reduced gloss level; and, (d) subjecting the radiant energy cured coating to a moisture cure to fully cure the coating.
Claim 8
Independent Claim
140 words
A method for producing a combined radiant energy and moisture cured resinous coating having a reduced gloss level, wherein said coating does not require the presence of flatting pigments to achieve gloss reduction, which method comprises: (a) coating the surface of a substrate with a liquid resinous coating composition curable by a combined radiant energy and moisture cure; (b) treating at least a portion of the surface of the liquid resinous coating with a corona discharge sufficient to reduce the gloss level of the coating in the treated portion; (c) exposing the liquid resinous coating having a reduced gloss level to a dosage of radiant energy sufficient to polymerize the radiant energy curable components of the coating and set the reduced gloss level; and, (d) subjecting the radiant energy cured coating to a moisture cure to fully cure the coating.
Claim 9
Dependent Claim
31 words
The method of claim 6 in which said liquid resinous coating composition is a free radical initiated ethylenically unsaturated polymerizable coating composition curable by a combined radiant energy and moisture cure.
Claim 10
Dependent Claim
27 words
The method of claim 7 in which the radiant energy is ultraviolet light and the moisture cure consists of allowing the coating to age at room conditions.
Claim 11
Dependent Claim
30 words
The method of claim 6 in which said corona discharge is produced by ionizing a gas or gas mixture which contains water vapor at more than about 25% relative humidity.
Claim 12
Dependent Claim
20 words
The method of claim 6 in which said substrate is a resilient floor covering material to be wear layer coated.
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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) | 1984-09-14 | 1985-03-16 | 1985-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-14 | 1989-03-16 | 1989-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-14 | 1993-03-16 | 1993-09-15 | $7700.00 | Window Closed / Lapsed |