US3690924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive articles having a release coating
Assignee: WR Grace and Co
•
Filing: 1970-10-05
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Granted: 1972-09-12
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Expires: 1990-10-05
Abstract
Abstract A PRESSURE-SENSITIVE ADHESIVE COATED ARTICLE, SUCH AS A TAPE, HAVING A RELEASE COATING WITH SUPERIOR ORGANIC SOLVENT AND WATER RESISTANCE ON SIDE OPPOSITE THE ADHESIVE COATING COMPRISING A WATER SOLUBLE, ORGANIC SOLVENT-INSOLUBLE FILM FORMING POLYMER, E.G. POLYVINYL ALCOHOL, AS THE MAJOR COMPONENT, A FLUOROCHEMICAL CONTAINING A NONPOLAR "HEAD" PORTION OF THE STRUCTURE F-(CF2)N-CF2- AND A POLAR "TAIL" PORTION WHICH IS A CARBOXYLIC ACIDO GROUP OF THE WERNER COMPLEX TYPE WITH CHROMIUM AND AN INSOLUBILIZER FOR SAID POLYVINYL ALCOHOL.
Inventors
- 👤 Phillip W Estes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:56
CPC Classifications
C; C09; C09J; C09J129/00; C09J129/02; C09J129/04; C09J7/00; C09J7/20; C09J7/201; C09J7/21; C09J7/22; C09J7/30; C09J7/38; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/24; C09J2427/00; C09J2427/005; C09J2429/00; C09J2429/005; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |