Patent US4608300A successfully refreshed from Google Patents.
US4608300A
Expired / Lapsed
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Fibre composite materials impregnated with a curable epoxide resin matrix
Assignee: Huntsman Advanced Materials Americas LLC
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Filing: 1984-06-11
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Granted: 1986-08-26
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Expires: 2004-06-11
Abstract
Abstract Fibre composite systems, in particular fibre composite laminates, can be prepared advantageously from a fibre composite impregnated with a curable epoxide resin matrix containing: (a) a liquid epoxide resin or a liquid mixture of epoxide resins, (b) an aliphatic or cycloaliphatic primary monoamine and/or disecondary diamine and (c) a tertiary amine which cures by catalysis or (d) a cycloaliphatic diamine or an aliphatic diamine or polyamine, containing not more than one sterically unhindered primary amino group, by crosslinking and curing the resin matrix below 120° C.
Inventors
- 👤 Urs Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:06
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/244; C08J2363/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31525; Y10T442/00; Y10T442/20; Y10T442/2361
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
A fibre composite impregnated with a solvent-free epoxide resin matrix curable at a temperature less than 120° C. which contains (a) a liquid epoxide resin or a liquid mixture of epoxide resins, (b) an aliphatic or cycloaliphatic primary monoamine and/or disecondary diamine and (c) a tertiary amine epoxy curing agent or imidazole which cures by catalysis, there being present in the curable epoxide resin matrix, for 1 epoxide equivalent of the epoxide resin (a), 0.15 to 0.8 amine hydrogen equivalent of the amine component (b) and 0.01 to 0.1 mole of the tertiary amine (c).
Claim 2
Dependent Claim
95 words
A fibre composite impregnated with a solvent-free epoxide resin matrix curable at a temperature less than 120° C. which contains (a) a liquid epoxide resin or a liquid mixture of epoxide resins, (b) an aliphatic or cycloaliphatic primary monoamine and/or disecondary diamine and (c) a tertiary amine epoxy curing agent or imidazole which cures by catalysis, there being present in the curable epoxide resin matrix, for 1 epoxide equivalent of the epoxide resin (a), 0.15 to 0.8 amine hydrogen equivalent of the amine component (b) and 0.01 to 0.1 mole of the tertiary amine (c).
Claim 3
Dependent Claim
41 words
A fibre composite according to claim 1, wherein 0.2 to 0.7 amine hydrogen equivalent of the amine component (b) and 0.02 to 0.06 mole of the tertiary amine (c) are present in the curable epoxide resin matrix for 1 epoxide equivalent.
Claim 4
Dependent Claim
19 words
A fibre composite according to either of claims 1 or 2, wherein the component (b) is a primary monoamine.
Claim 5
Dependent Claim
19 words
A fibre composite according to either of claims 1 or 3, wherein the component (c) is an imidazole compound.
Claim 6
Dependent Claim
15 words
A fibre composite according to claim 1, which is in the form of a prepreg.
Claim 7
Dependent Claim
15 words
A fibre composite according to claim 1 wherein the component (b) is a primary monoamine.
Claim 8
Dependent Claim
15 words
A fibre composite according to claim 1 wherein the component (c) is an imidazole compound.
Claim 9
Dependent Claim
31 words
A fibre composite system, in particular a fibre composite laminate, prepared from the fibre composite according to claim 1 and, if appropriate, other materials, by shaping and crosslinking the resin matrix.
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |