US3838079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive composition comprising carboxylated polymer
Assignee: Tosoh Corp
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Filing: 1971-09-29
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Granted: 1974-09-24
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Expires: 1991-09-29
Abstract
Abstract A PRESSURE SENSITIVE ADHESIVE COMPOSITION IS FORMED FROM 30 TO 70% BY WEIGHT, OF A CARBOXYLATED POLYMER PRODUCT OBTAINED BY COPOLYMERIZING MALEID ANHYDRIDE AND AN ALKYL ACRYLATE IN CONTACT WITH AN ETHYLENE VINYL ACETATE COPOLYMER, AND FROM 70 TO 30%, BY WEIGHT BASED ON THE TOTAL COMPOSITION, OF A TACKIFIER AND VISCOSITY REDUCING AGENT.
Inventors
- 👤 Y Kosaka
- 👤 M Saito
- 👤 Shi S Nanyo
- 👤 M Uemura
- 👤 T Fujiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
C; C08; C08F; C08F263/00; C08F263/02; C08F263/04; C08F255/00; C08F255/02; C08F255/026; C09; C09J; C09J151/00; C09J151/003; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 0
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |