US2986546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions and their preparation
Assignee: Shell USA Inc
•
Filing: 1956-11-15
•
Granted: 1961-05-30
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Naps Marguerite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:20
CPC Classifications
C; C09; C09J; C09J163/00; C09J129/00; C09J129/14; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/35; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN ADHESIVE COMPOSITION COMPRISING A MIXTURE OF 20 TO 60 PARTS OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL HAVING AN EPOXY EQUIVALENCY BETWEEN 1.0 AND 2.0 AND A MOLECULAR WEIGHT BETWEEN 800 AND 4000, 40 TO 80 PARTS OF A METHYLOL-CONTAINING PHENOL-ALDEHYDE RESIN AND FROM 7.5 PARTS TO 40 PARTS PER 100 PARTS BY WEIGHT OF THE MIXTURE OF GLYCIDYL POLYETHER AND PHENOL-ALDEHYDE RESIN OF A POLYVINYL ACETAL RESIN OF AN ALKANOL OF 1 TO 4 CARBON ATOMS, SAID POLYVINYL ACETAL RESIN HAVING A MOLECULAR WEIGHT BETWEEN 20,000 AND 100,000.
Claim 2
Dependent Claim
91 words
AN ADHESIVE COMPOSITION COMPRISING A MIXTURE OF 20 TO 60 PARTS OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL HAVING AN EPOXY EQUIVALENCY BETWEEN 1.0 AND 2.0 AND A MOLECULAR WEIGHT BETWEEN 800 AND 4000, 40 TO 80 PARTS OF A METHYLOL-CONTAINING PHENOL-ALDEHYDE RESIN AND FROM 7.5 PARTS TO 40 PARTS PER 100 PARTS BY WEIGHT OF THE MIXTURE OF GLYCIDYL POLYETHER AND PHENOL-ALDEHYDE RESIN OF A POLYVINYL ACETAL RESIN OF AN ALKANOL OF 1 TO 4 CARBON ATOMS, SAID POLYVINYL ACETAL RESIN HAVING A MOLECULAR WEIGHT BETWEEN 20,000 AND 100,000.
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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |