US3579490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing resins for use in adhesives
Assignee: Ashland LLC
•
Filing: 1964-08-31
•
Granted: 1971-05-18
•
Expires: 1984-08-31
Abstract
Abstract A TACKY AND PRESSURE SENSITIVE ADHESIVE COMPRISING ONE OR MORE ALIPHATIC ESTERS OF ACRYLIC, METHACRYLIC AND ACETIC ACID TOGETHER WITH ONE OR MORE OF GLYCIDYL ACRYLATE, GLYCIDYL METHACRYLATE OR GLYCIDYL ALLYL ETHER IS DISCLOSED. THE PROPORTIONS OF MONOMERIC INGREDIENTS ARE SELECTED TO GIVE A CALCULATED GLASS TRANSITION TEMPERATURE FROM ABOUT -20*C. TO ABOUT -55*C. THE MONOMERIC SYSTEM IS COPOLYMERIZED AT A TEMPERATURE NOT EXCEEDING ABOUT 100*C. IN ORDER TO KEEP THE GLYCIDYL COMPOUNDS INTACT DURING POLYMERIZATION.
Inventors
- 👤 Stanley Kordzinski
- 👤 Milton B Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:44
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |