US3795644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesive composition
Assignee: Eastman Kodak Co
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Filing: 1972-08-14
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Granted: 1974-03-05
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Expires: 1992-08-14
Abstract
Abstract HOT, MELT ADHESIVE COMPOSITIONS HAVING LOW MELT VISCOSITY AND HIGH ADHESIVE STRENGTH, ESPECIALLY TO METALS. THE COMPOSITION INCLUDES A COPOLYESTER COMPRISING 1,4BUTANEDIOL, TEREPHTHALIC ACID AND DIMER ACID, BLENDED WITH A POLYMERIC MATERIAL COMPRISING A VINYL AROMATIC POLYMER DERIVED FROM A MONOMER OF THE FORMULA (R-C(=CH2)-),R1-BENZENE WHEREIN R IS HYDROGEN OR AN ALKYL GROUP CONTANING 1 TO 4 CARBON ATOMS AND R1 IS HYDROGEN, CHLORINE, ALKYL FROM 1 TO 4 CARBON ATOMS OR PHENYL.
Inventors
- 👤 W Jackson
- 👤 W Darnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; C08G63/183; B32B15/00; B32B15/04; C08G63/199; C08G63/46; C09; C09J; C09J167/00; C09J167/02; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
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References Cited (Backward Citations)
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |