US3681277A
Expired / Lapsed
US
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Process for preparing solvent-free pressure-sensitive adhesive from a polyisocyanate,a polyoxyalkylated diol or polyol and a tackifier
Assignee: BASF SE
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Filing: 1970-01-26
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Granted: 1972-08-01
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Expires: 1990-01-26
Abstract
Abstract PRODUCTION OF PRESSURE-SENSITIVE ADHESIVES COMPRISING A SOLUTION OF A TACKIFYING RESIN IN A POLY-(ALKYLENE OXIDE) AND AN ORGANIC DIISOCYANATE OR POLYISOCYANATE.
Inventors
- 👤 Kurt Scholz
- 👤 Kurt Hagenweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:14
CPC Classifications
C; C09; C09J; C09J171/00; C09J171/02; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/63; C08G18/637; C09J175/00; C09J175/04; C09J175/08; C08G2170/00; C08G2170/40; C08L; C08L2666/00; C08L2666/02; C08L2666/26
Claims Analysis
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |