Patent US3080341A successfully refreshed from Google Patents.
US3080341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for curing epoxy resins
Assignee: Lockheed Martin Corp
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Filing: 1959-12-16
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Granted: 1963-03-05
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Expires: 1979-12-16
Abstract
No abstract record available.
Inventors
- 👤 Albert G Chenicek
- 👤 Frank G Alster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:17
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/72
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A METHOD OF RAPIDILY CURING A POLYEPOXIDE HAVING A 1,2, EPOXY EQUIVALENCY IN EXCESS OF 1.3 TO PROVIDE A SOLID PRODUCT HAVING A SUBSTANTIALLY TACK-FREE SURFACE COMPRISING INTIMATELY ADMIXING SAID POLYPOXIDE WITH A LIQUID COMPONEHT CONTAINING AS THE ESSENTIAL CATALYTIC AGENT FOR CURING SAID POLYEPOXIDE, DISSOLVED BORON TRIFLUORIDE COMPLEX SELECTED FROM THE GROUP CONSISTING OF ETHERATES, PHENOLATES AND CARBOXYLATES AND A POLYVALENT METAL POLYHALIDE SALT, EACH OF SAID BORON TRIFLUORIDE COMPLEX AND POLYVALENT METAL POLYHALIDE BEING PRESENT IN AID ADMIXTURE IN AN AMOUNT OF FROM 0.5 TO 5.0% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYEPOXIDE.
Claim 2
Independent Claim
97 words
A METHOD OF RAPIDILY CURING A POLYEPOXIDE HAVING A 1,2, EPOXY EQUIVALENCY IN EXCESS OF 1.3 TO PROVIDE A SOLID PRODUCT HAVING A SUBSTANTIALLY TACK-FREE SURFACE COMPRISING INTIMATELY ADMIXING SAID POLYPOXIDE WITH A LIQUID COMPONEHT CONTAINING AS THE ESSENTIAL CATALYTIC AGENT FOR CURING SAID POLYEPOXIDE, DISSOLVED BORON TRIFLUORIDE COMPLEX SELECTED FROM THE GROUP CONSISTING OF ETHERATES, PHENOLATES AND CARBOXYLATES AND A POLYVALENT METAL POLYHALIDE SALT, EACH OF SAID BORON TRIFLUORIDE COMPLEX AND POLYVALENT METAL POLYHALIDE BEING PRESENT IN AID ADMIXTURE IN AN AMOUNT OF FROM 0.5 TO 5.0% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYEPOXIDE.
Claim 3
Independent Claim
141 words
A METHOD OF RAPIDLY CURING A POLYEPOXIDE HAVING A 1.2 EPOXY EQUIVALENCY IN EXCESS OF 1.3 TO PROVIDE A SOLID PRODUCT HAVING SUBSTANTIALLY JACK-FREE SURFACE COMPRISING INTIMATELY ADMIXING A FIRST LIQUID COMPONENT CONSISTING ESSENTIALLY OF DIGLYCIDYL ETHER OF BISPHENOL A DILUTED WITH BUTYL GLYCIDYL ETHER AND A SECOND LIQUID COMPONENT CONSISTING ESSENTIALLY OF POLYPROPYLENE GLYCOL HAVING A MOLECULAR WEIGHT OF ABOUT 425, SAID SECOND LIQUID COMPONENT CONTANING, AS THE ESSENTIAL CATALYTIC AGENT FOR CURING SAID POLYPOXIDE, DISSOLVED BORON TRIFLUORIDE ETHERAT AND SNCL4.5H2O, EACH OF SAID BORON TRIFLUORIDE ETHERATE AND SNCL4.5H2O BEING PRESENT IN SAID ADMIXTURE IN AN AMOUNT OF AT LEAST 0.5% BY WEIGHT, BASED ON THE WEIGHT OF SAID DIGLYCIDYL ETHER AND IN A TOTAL AMOUNT OF LESS THAN 4% BY WEIGHT ON SAID BASIS, AND THE WEIGHT RATIO OF SAID FIRST COMPONENT TO SAID SECOND COMPONENT BEING ABOUT 2:1.
Claim 4
Independent Claim
141 words
A METHOD OF RAPIDLY CURING A POLYEPOXIDE HAVING A 1.2 EPOXY EQUIVALENCY IN EXCESS OF 1.3 TO PROVIDE A SOLID PRODUCT HAVING SUBSTANTIALLY JACK-FREE SURFACE COMPRISING INTIMATELY ADMIXING A FIRST LIQUID COMPONENT CONSISTING ESSENTIALLY OF DIGLYCIDYL ETHER OF BISPHENOL A DILUTED WITH BUTYL GLYCIDYL ETHER AND A SECOND LIQUID COMPONENT CONSISTING ESSENTIALLY OF POLYPROPYLENE GLYCOL HAVING A MOLECULAR WEIGHT OF ABOUT 425, SAID SECOND LIQUID COMPONENT CONTANING, AS THE ESSENTIAL CATALYTIC AGENT FOR CURING SAID POLYPOXIDE, DISSOLVED BORON TRIFLUORIDE ETHERAT AND SNCL4.5H2O, EACH OF SAID BORON TRIFLUORIDE ETHERATE AND SNCL4.5H2O BEING PRESENT IN SAID ADMIXTURE IN AN AMOUNT OF AT LEAST 0.5% BY WEIGHT, BASED ON THE WEIGHT OF SAID DIGLYCIDYL ETHER AND IN A TOTAL AMOUNT OF LESS THAN 4% BY WEIGHT ON SAID BASIS, AND THE WEIGHT RATIO OF SAID FIRST COMPONENT TO SAID SECOND COMPONENT BEING ABOUT 2:1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |