Patent US3676192A successfully refreshed from Google Patents.
US3676192A
Expired / Lapsed
US
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Crosslinked polyvinyl chloride or polyvinylidene fluoride film
Assignee: PPG Industries Inc
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Filing: 1970-04-06
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Granted: 1972-07-11
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Expires: 1990-04-06
Abstract
Abstract COATING COMPOSITIONS COMPRISING POLYVINYL CHLORIDE OR POLYVINYLIDENE FLUORIDE ARE PREPARED BY MIXING A SOLUTION OF THE POLYVINYL CHLORIDE OR POLYLVINYLIDENE FLUORIDE IN AN ACTIVE SOLVENT WITH AN ACRYLIC MONOMER AND SUBJECTING THE MIXTURE TO IONIZING IRRADIATION. THE CURED FILMS ARE HARD, STAIN-RESISTANT, HEAT-RESISTANT, AND MAR-RESISTANT.
Inventors
- 👤 Ernest A Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:56
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |