US4265976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-curable coated article having moisture barrier propetes
Assignee: Celanese Corp
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Filing: 1979-09-17
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Granted: 1981-05-05
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Expires: 1999-09-17
Abstract
Abstract This invention provides an ultraviolet radiation-curable coating composition which after curing has utility as a moisture barrier film for the protection of substrates such as paper and cardboard. Illustrative of the invention radiation-curable composition is a blend of components comprising (1) chlorinated rubber, (2) chlorinated paraffin; (3) vinyl acetate; (4) trimethylolpropane triacrylate; (5) photoinitiator; and (6) heat and light stabilizer for the chlorocarbon components. The invention composition cures as a substantially 100 percent solids system within one second at room temperature when exposed to ultraviolet radiation.
Inventors
- 👤 Michael T. Nowak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31812; Y10T428/31826; Y10T428/31841; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
131 words
An article comprising a substrate in combination with an adherent moisture barrier protective film, which combination is produced by coating the substrate surface with a resin composition, and then radiation-curing the said coating to form the moisture barrier protective film on the substrate surface; wherein the resin composition comprises a blend of (1) between about 10 and 30 weight percent of chlorinated rubber; (2) between about 2 and 25 weight percent of chlorinated paraffin; (3) between about 15 and 45 weight percent of vinyl alkanoate; (4) between about 10 and 40 weight percent of crosslinking monomer containing at least two polymerizable olefinically unsaturated groups; (5) between about 0.5 and 15 weight percent of photoinitiator; and (6) between about 0.5 and 5 weight percent of stabilizer, based on the total composition weight.
Claim 2
Dependent Claim
131 words
An article comprising a substrate in combination with an adherent moisture barrier protective film, which combination is produced by coating the substrate surface with a resin composition, and then radiation-curing the said coating to form the moisture barrier protective film on the substrate surface; wherein the resin composition comprises a blend of (1) between about 10 and 30 weight percent of chlorinated rubber; (2) between about 2 and 25 weight percent of chlorinated paraffin; (3) between about 15 and 45 weight percent of vinyl alkanoate; (4) between about 10 and 40 weight percent of crosslinking monomer containing at least two polymerizable olefinically unsaturated groups; (5) between about 0.5 and 15 weight percent of photoinitiator; and (6) between about 0.5 and 5 weight percent of stabilizer, based on the total composition weight.
Claim 3
Dependent Claim
16 words
An article in accordance with claim 1 wherein the substrate is a flexible cellulosic sheet composition.
Claim 4
Dependent Claim
138 words
An article comprising a substrate in combination with an adherent moisture barrier protective film, which combination is produced by coating the substrate surface with a resin composition, and then ultraviolet radiation-curing the said coating to form the moisture barrier protective film on the substrate surface; wherein the resin composition comprises a blend of (1) between about 15 and 25 weight percent of chlorinated rubber; (2) between about 5 and 20 weight percent of chlorinated paraffin; (3) between about 20 and 35 weight percent vinyl acetate; (4) between about 15 and 35 weight percent of crosslinking monomer selected from trimethylolpropane triacrylate and trimethylolpropane trimethacrylate; (5) between about 1 and 10 weight percent of photoinitiator; and (6) between about 1 and 4 weight percent of heat and light stabilizer for the chlorocarbon components, all based on the total composition weight.
Claim 5
Dependent Claim
138 words
An article comprising a substrate in combination with an adherent moisture barrier protective film, which combination is produced by coating the substrate surface with a resin composition, and then ultraviolet radiation-curing the said coating to form the moisture barrier protective film on the substrate surface; wherein the resin composition comprises a blend of (1) between about 15 and 25 weight percent of chlorinated rubber; (2) between about 5 and 20 weight percent of chlorinated paraffin; (3) between about 20 and 35 weight percent vinyl acetate; (4) between about 15 and 35 weight percent of crosslinking monomer selected from trimethylolpropane triacrylate and trimethylolpropane trimethacrylate; (5) between about 1 and 10 weight percent of photoinitiator; and (6) between about 1 and 4 weight percent of heat and light stabilizer for the chlorocarbon components, all based on the total composition weight.
Claim 6
Dependent Claim
18 words
An article in accordance with claim 3 wherein the substrate is a flexible sheet of paper or cardboard.
Claim 7
Dependent Claim
40 words
An article in accordance with claim 3 wherein the moisture barrier protective film on the substrate surface exhibits a rate of water vapor transmission of less than 2 grams/100 square inches/24 hours at a film thickness of about 0.2 mil.
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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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |