US3246049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive comprising an isocyanate cross-linked polyester of castor oil and diglycolic acid, and tape coated with said adhesive
Assignee: Saint Gobain Abrasives Inc
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Filing: 1963-08-30
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Granted: 1966-04-12
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Charles S Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4244; C08G18/4258; C08G18/30; C08G18/36; C09; C09J; C09J175/00; C09J175/04; C09J175/06; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; C08G2170/00; C08G2170/40; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PRESSURE SENSITIVE ADHESIVE HAVING HIGH SOLVENT, ULTRAVIOLET, OXYGEN AND OZONE RESISTANCE AND BEING STRONGLY ADHERENT TO NON-FIBROUS FILM SURFACES EXCEPT TO ITSELF WHICH COMPRISES: AN ISOCYANATE CROSS-LINKED REACTION PRODUCT OF CASTOR OIL AND DIGLYCOLIC ACID FORMED FROM 0.3 TO 0.9 EQUIVALENT OF ACID TO ONE OF OIL; SAID REACTION PRODUCT CONTAINING FREE HYDROXYL GROUPS AND BEFORE CROSS-LINKING HAVING A VISCOSITY BETWEEN 5,000 AND 35,000 CENTIPOISES AT 25*C., AN ACID NUMBER LESS THAN 30; A HYDROXYL NUMBER BETWEEN 40 AND 90; AND A MOLECULAR WEIGHT NUMBER AVERAGE OF FROM 1,200 TO 2,100.
Claim 2
Dependent Claim
92 words
A PRESSURE SENSITIVE ADHESIVE HAVING HIGH SOLVENT, ULTRAVIOLET, OXYGEN AND OZONE RESISTANCE AND BEING STRONGLY ADHERENT TO NON-FIBROUS FILM SURFACES EXCEPT TO ITSELF WHICH COMPRISES: AN ISOCYANATE CROSS-LINKED REACTION PRODUCT OF CASTOR OIL AND DIGLYCOLIC ACID FORMED FROM 0.3 TO 0.9 EQUIVALENT OF ACID TO ONE OF OIL; SAID REACTION PRODUCT CONTAINING FREE HYDROXYL GROUPS AND BEFORE CROSS-LINKING HAVING A VISCOSITY BETWEEN 5,000 AND 35,000 CENTIPOISES AT 25*C., AN ACID NUMBER LESS THAN 30; A HYDROXYL NUMBER BETWEEN 40 AND 90; AND A MOLECULAR WEIGHT NUMBER AVERAGE OF FROM 1,200 TO 2,100.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |