US4041007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy composition and article of manufacture thereof
Assignee: FOC Corp A DE CORP
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Filing: 1976-03-05
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Granted: 1977-08-09
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Expires: 1996-03-05
Abstract
Abstract An epoxy composition including an epoxy resin, an aromatic amine which is used in an amount which is substantially the stoichiometric amount sufficient to react with the epoxy groups of the epoxy resin, a clay filler, and a material provided to extend the shelf life the composition which material has a composition as follows: ##STR1## and wherein R may be hydrogen or an organic radical and preferably where said material is selected from a group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidazole, and 2-ethyl 4-methyl imidazole with such material being in the range of from 0.2% to 12% by weight of the clay filler or in the range from 0.06% to 3.30% by weight of the total composition.
Inventors
- 👤 William D. Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:11
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/346; C08K5/00; C08K5/16; C08K5/17; C08K5/34; C08K5/3442; C08K5/3445
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
An epoxy composition which comprises, an epoxy resin, an aromatic amine and substantially the stoichiometric amounts sufficient to react with the epoxy groups in said epoxy resin, a clay filler, and a retarding agent having a composition as follows: ##STR4## wherein R may be hydrogen or an organic radical, said retarding agent being provided in an amount in the range from 0.06% to 3.30% by weight of the total composition and in the range from 0.2% to 12% by weight of the clay filler.
Claim 2
Dependent Claim
84 words
An epoxy composition which comprises, an epoxy resin, an aromatic amine and substantially the stoichiometric amounts sufficient to react with the epoxy groups in said epoxy resin, a clay filler, and a retarding agent having a composition as follows: ##STR4## wherein R may be hydrogen or an organic radical, said retarding agent being provided in an amount in the range from 0.06% to 3.30% by weight of the total composition and in the range from 0.2% to 12% by weight of the clay filler.
Claim 3
Dependent Claim
28 words
An epoxy composition according to claim 1 wherein said material is selected from the group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidazole, and 2-ethyl 4-methyl imidazole.
Claim 4
Dependent Claim
15 words
A composition according to claim 1 including a fibrous reinforcing material added to said composition.
Claim 5
Dependent Claim
72 words
An epoxy composition which comprises an epoxy resin, an aromatic amine in substantially the stoichiometric amount sufficient to react with the epoxy groups in said epoxy resin, a clay filler, and a retarding agent selected from the group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidizole, and 2-ethyl 4-methyl imidazole, said retarding agent being provided in an amount in the range of f0.3% to 12% by weight of the clay filler.
Claim 6
Dependent Claim
72 words
An epoxy composition which comprises an epoxy resin, an aromatic amine in substantially the stoichiometric amount sufficient to react with the epoxy groups in said epoxy resin, a clay filler, and a retarding agent selected from the group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidizole, and 2-ethyl 4-methyl imidazole, said retarding agent being provided in an amount in the range of f0.3% to 12% by weight of the clay filler.
Claim 7
Dependent Claim
36 words
An epoxy composition comprising 100 parts by weight-epoxy resin, substantially the stoichiometric weight of aromatic amine to react with the epoxy groups of said epoxy resin, 75 parts by weight-clay filler, and 0.5 parts by weight-1-methyl-imidazole.
Claim 8
Dependent Claim
36 words
An epoxy composition comprising 100 parts by weight-epoxy resin, substantially the stoichiometric weight of aromatic amine to react with the epoxy groups of said epoxy resin, 75 parts by weight-clay filler, and 0.5 parts by weight-1-methyl-imidazole.
Claim 9
Dependent Claim
20 words
An article of manufacture comprising a structure of heat cured material having the composition as set forth in claim 1.
Claim 10
Dependent Claim
87 words
An article of manufacture produced by curing an epoxy material having the following composition an epoxy resin, an aromatic amine in substantially stoichiometric amounts sufficient to react with the epoxy groups in an epoxy resin, a clay filler, a retarding agent selected from the group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidizole, and 2 ethyl imidizole 4 methyl imidazole, and a fibrous reinforcing material, said retarding agent being provided in an amount in the range of 0.2% to 12% by weight of the clay filler.
Claim 11
Dependent Claim
87 words
An article of manufacture produced by curing an epoxy material having the following composition an epoxy resin, an aromatic amine in substantially stoichiometric amounts sufficient to react with the epoxy groups in an epoxy resin, a clay filler, a retarding agent selected from the group consisting of imidazole, 1-methyl imidazole, 2-ethyl imidazole, 1-vinyl imidizole, and 2 ethyl imidizole 4 methyl imidazole, and a fibrous reinforcing material, said retarding agent being provided in an amount in the range of 0.2% to 12% by weight of the clay filler.
References Cited (Backward Citations)
US3533985A
Cited
US3923571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |