US3661876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesives or sealing agents which harden on exclusion of oxygen
Assignee: Henkel AG and Co KGaA
•
Filing: 1970-03-30
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Granted: 1972-05-09
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Expires: 1990-03-30
Abstract
Abstract ADHESIVE COMPOSITIONS HARDENABLE UNDER EXCLUSION OF OXYGEN COMPRISING LIQUID ESTERS OF METHACRYLIC AND ACRYLIC ACIDS WHICH HARDEN UNDER EXCLUSION OF OXYGEN, AN ORGANIC PERCOMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC HYDROPEROXIDES HAVING FROM 3 TO 18 CARBON ATOMS AND ORGANIC PEROXIDES WHOSE HALF LIFE DECOMPOSITION TEMPERATURE AFTER 10 HOURS IS GREATER THAN 85*C., AND AT LEAST 10% BY WEIGHT OF A COMPOUND OF THE FORMULA CH2=C(-COO-R)-OOC-C(-X)=CH2 WHEREIN X REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN AND LOWER ALKYL AND R REPRESENTS A HYDROCARBON HAVING FROM 1 TO 12 CARBON ATOMS. SAID COMPOSITIONS FORM A HEAT-STABLE ADHESIVE BOND.
Inventors
- 👤 Bernd Wegemund
- 👤 Joachim Galinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:08
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06
Claims Analysis
Total Claims: 0
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |