Patent US3626022A successfully refreshed from Google Patents.
US3626022A
Expired / Lapsed
US
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Hardenable epoxy resin containing chelates from metal halides, monoepoxides, and chelate forming compounds
Assignee: Adeka Corp
•
Filing: 1968-04-10
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Granted: 1971-12-07
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Expires: 1988-04-10
Abstract
Abstract D R A W I N G
Inventors
- 👤 Hiroshi Suzuki
- 👤 Yasusi Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:29
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/625; C08G59/20; C08G59/68; C08G59/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
10 words
at least one aromatic chelate-forming compound having the general formula:
Claim 2
Dependent Claim
53 words
A hardenaBle epoxy resin composition which contains as essential constituents A. at least one epoxy compound which contains on the average more than one adjacent epoxy group per molecule and B. 0.01 to 35 percent by weight, based on the weight of said epoxy compound, of at least one hardener having the formula:
Claim 3
Dependent Claim
10 words
at least one aromatic chelate-forming compound having the general formula:
Claim 4
Dependent Claim
10 words
at least one aromatic chelate-forming compound having the general formuLa:
Claim 5
Dependent Claim
21 words
A method of hardening a composition according to claim 2, which comprises hardening said composition at a low temperature in water.
Claim 6
Dependent Claim
52 words
A hardenable epoxy resin composition according to claim 2, in which said metal halide is a ferric halide, M represents an iron atom, and said additional hardener is an addition product of an aromatic amine with a liquid epoxy compound containing on the average not more than two 1,2-epoxy groups per molecule.
Claim 7
Dependent Claim
30 words
A hardenable epoxy resin composition according to claim 2, in which said metal halide is a ferric halide, M represents an iron atom, and said additional hardener is a polyamide.
Claim 8
Dependent Claim
52 words
A hardenable epoxy resin composition according to claim 2, in which said metal halide is an aluminum halide, M represents an aluminum atom, and said additional hardener is an addition product of an aromatic amine with a liquid epoxy compound containing on the average not more than two 1,2-epoxy groups per molecule.
Claim 9
Dependent Claim
30 words
A hardenable epoxy resin composition according to claim 2, in which said metal halide is an aluminum halide, M represents an aluminum atom, and said additional hardener is a polyamide.
Claim 10
Dependent Claim
53 words
A hardenable epoxy resin composition which contains as essential constituents A. at least one epoxy compound which contains on the average more than one adjacent epoxy group per molecule and B. 0.01 to 35 percent by weight, based on the weight of said epoxy compound, of at least one hardener having the formula:
Claim 11
Dependent Claim
54 words
A process for preparing an epoxy resin which comprises hardening at least one epoxy compound which contains on the average more than one adjacent epoxy group per molecule, by admixing therewith from 0.01 to 35 percent by weight, based on the weight of said epoxy compound, of at least one hardener having the formula
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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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |