US2981650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesives, cements and the like
Assignee: Evonik Operations GmbH
•
Filing: 1956-02-21
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Granted: 1961-04-25
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Bader Erich
- 👤 Schweitzer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:13
CPC Classifications
C; C09; C09J; C09J111/00; C08; C08F; C08F279/00; C08F279/02; C09J167/00; C09J167/06; C09J4/00; C09J4/06; F; F16; F16B; F16B11/00; F16B11/006; C08K; C08K5/00; C08K5/16; C08K5/315; C08L; C08L11/00; C08L2666/00; C08L2666/02; C08L51/00; C08L51/04; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD OF ADHESIVELY UNITING METAL SURFACES WHICH COMPRISES APPLYING BETWEEN THE SURFACES TO BE UNITED A COMPOSITION COMPRISING AN UNSATURATED LIQUID MONOMERIC POLYMERIZABLE ORGANIC COMPOUND CONTAINING A>C=CH2 GROUP WHICH CAN BE POLYMERIZED WITH THE AID OF A CATALYST, AT LEAST ONE POLYCHLOROPRENE POLYMER PRODUCED BY THE POLYMERIZATION OF 2-CHLOROBUTADIENE-1,3 AND ANOTHER POWDERED POLYMERIC CPMPOUND THE QUANTITY OF POLYCHLOROPRENE POLYMERIC BEING 0,5 TO 15% OF THE ADHESIVE COMPOSITION AS AN ADHESIVE FOR THE SURFACES TO BE ADHESIVELY UNITED AND EFFECTING BULK POLYMERIZATION OF SUCH COMPOSITION WHILE IN CONTACT WITH THE SURFACES TO BE UNITED IN THE PRESENCE OF A CATALYST.
Claim 2
Independent Claim
100 words
A METHOD OF ADHESIVELY UNITING METAL SURFACES WHICH COMPRISES APPLYING BETWEEN THE SURFACES TO BE UNITED A COMPOSITION COMPRISING AN UNSATURATED LIQUID MONOMERIC POLYMERIZABLE ORGANIC COMPOUND CONTAINING A>C=CH2 GROUP WHICH CAN BE POLYMERIZED WITH THE AID OF A CATALYST, AT LEAST ONE POLYCHLOROPRENE POLYMER PRODUCED BY THE POLYMERIZATION OF 2-CHLOROBUTADIENE-1,3 AND ANOTHER POWDERED POLYMERIC CPMPOUND THE QUANTITY OF POLYCHLOROPRENE POLYMERIC BEING 0,5 TO 15% OF THE ADHESIVE COMPOSITION AS AN ADHESIVE FOR THE SURFACES TO BE ADHESIVELY UNITED AND EFFECTING BULK POLYMERIZATION OF SUCH COMPOSITION WHILE IN CONTACT WITH THE SURFACES TO BE UNITED IN THE PRESENCE OF A CATALYST.
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |