US4230766A
Expired / Lapsed
US
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Fiber-base composite material having high tensile strength
Assignee: Oris Industrie SA
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Filing: 1978-09-13
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Granted: 1980-10-28
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Expires: 1998-09-13
Abstract
Abstract The fibers constituting the composite material are impregnated with a composition containing at least one unsaturated epoxy resin mixed with at least two ethylenic monounsaturation monomers, at least one ethylenic polyunsaturation monomer, a photoinitiator and an organic peroxide. The composition is prepolymerized by means of ultraviolet rays in a first step and then cross-linked either by ultraviolet rays or a temperature rise in a second step.
Inventors
- 👤 Gilbert Gaussens
- 👤 Francis Lemaire
- 👤 Bach Van Nguyen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:28
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K7/00; C08K7/02; C08L; C08L63/00; C08L63/10; C08L77/00; D01; D01F; D01F11/00; D01F11/10; D01F11/14; D06M14/00; D06M14/36; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1369; Y10T428/139; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249942; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/2971; Y10T428/31504; Y10T428/31511; Y10T428/31725; Y10T428/3175; Y10T428/31757; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
A fiber-base composite material having high tensile strength, obtained by impregnating fibers with a composition containing at least one unsaturated epoxy resin having a double bond index within the range of 0.10 to 0.40, obtained by modifying a saturated epoxy resin by acrylic acid or methacrylic acid, at least a first ethylenically unsaturated monomer selected from the group consisting of vinyl-pyrrolidone, 2-vinyl-pyridine, 4-vinyl-pyridine, 2-vinyl-5-methyl-pyridine, methylamino-ethyl methacrylate, methoxy-ethyl acrylate, butoxy-ethyl acrylate, at least a second ethylenically unsaturated monomer selected from the group consisting of butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, at least one ethylenically polyunsaturated monomer selected from the group consisting of hexane-diol diacrylate, diethyleneglycol diacrylate, tetraethyleneglycol, diacrylate, polyethylene-glycol diacrylate, pentaerythritol tetraacrylate, a photoinitiator and an organic peroxide, said composition comprising 30-60% by weight of said unsaturated epoxy resin, 5-30% by weight of said first monomer, 5-40% by weight of said second monomer, 5-25% by weight of said polyunsaturated monomer, 1-5% by weight of said photoinitiator and 1-5% by weight of said organic peroxide, by prepolymerizing said composition by means of ultraviolet rays in a first step, and then cross-linking said composition in a second step.
Claim 2
Dependent Claim
187 words
A fiber-base composite material having high tensile strength, obtained by impregnating fibers with a composition containing at least one unsaturated epoxy resin having a double bond index within the range of 0.10 to 0.40, obtained by modifying a saturated epoxy resin by acrylic acid or methacrylic acid, at least a first ethylenically unsaturated monomer selected from the group consisting of vinyl-pyrrolidone, 2-vinyl-pyridine, 4-vinyl-pyridine, 2-vinyl-5-methyl-pyridine, methylamino-ethyl methacrylate, methoxy-ethyl acrylate, butoxy-ethyl acrylate, at least a second ethylenically unsaturated monomer selected from the group consisting of butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, at least one ethylenically polyunsaturated monomer selected from the group consisting of hexane-diol diacrylate, diethyleneglycol diacrylate, tetraethyleneglycol, diacrylate, polyethylene-glycol diacrylate, pentaerythritol tetraacrylate, a photoinitiator and an organic peroxide, said composition comprising 30-60% by weight of said unsaturated epoxy resin, 5-30% by weight of said first monomer, 5-40% by weight of said second monomer, 5-25% by weight of said polyunsaturated monomer, 1-5% by weight of said photoinitiator and 1-5% by weight of said organic peroxide, by prepolymerizing said composition by means of ultraviolet rays in a first step, and then cross-linking said composition in a second step.
Claim 3
Dependent Claim
20 words
A material according to claim 1, wherein said composition is cross-linked in the second step by means of ultraviolet rays.
Claim 4
Dependent Claim
21 words
A material according to claim 1, wherein said composition is cross-linked in the second step by means of a temperature rise.
Claim 5
Dependent Claim
19 words
A material according to claim 1, wherein said fibers are constituted by aromatic polyamide fibers having high tensile strength.
Claim 6
Dependent Claim
14 words
A material according to claim 1, wherein said fibers are constituted by carbon fibers.
Claim 7
Independent Claim
190 words
A method of fabrication of a fiber-base material having high tensile strength, wherein the fibers are impregnated with a composition containing at least one unsaturated epoxy resin having a double bond index within the range of 0.10 to 0.40, obtained by modifying a saturated epoxy resin by acrylic acid or methacrylic acid, at least a first ethylenically unsaturated monomer selected from the group consisting of vinyl-pyrrolidone, 2-vinyl-pyridine, 4-vinyl-pyridine, 2-vinyl-5-methyl-pyridine, methylaminoethyl methacrylate, methoxy-ethyl acrylate, butoxy-ethyl acrylate, at least a second ethylenically unsaturated monomer selected from the group consisting of butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, at least one ethylenically polyunsaturated monomer selected from the group consisting of hexane-diol diacrylate, diethylene-glycol diacrylate, tetraethylene-glycol diacrylate, polyethylene-glycol diacrylate, pentaerythritol tetraacrylate, a photoinitiator and an organic peroxide, said composition comprising 30-60% by weight of said unsaturated epoxy resin, 5-30% by weight of said first monomer, 5-40% by weight of said second monomer, 5-25% by weight of said polyunsaturated monomer, 1-5% by weight of said photoinitiator and 1-5% by weight of said organic peroxide, said composition is prepolymerized by means of ultraviolet rays in a first step and then cross-linked in a second step.
Claim 8
Independent Claim
190 words
A method of fabrication of a fiber-base material having high tensile strength, wherein the fibers are impregnated with a composition containing at least one unsaturated epoxy resin having a double bond index within the range of 0.10 to 0.40, obtained by modifying a saturated epoxy resin by acrylic acid or methacrylic acid, at least a first ethylenically unsaturated monomer selected from the group consisting of vinyl-pyrrolidone, 2-vinyl-pyridine, 4-vinyl-pyridine, 2-vinyl-5-methyl-pyridine, methylaminoethyl methacrylate, methoxy-ethyl acrylate, butoxy-ethyl acrylate, at least a second ethylenically unsaturated monomer selected from the group consisting of butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, at least one ethylenically polyunsaturated monomer selected from the group consisting of hexane-diol diacrylate, diethylene-glycol diacrylate, tetraethylene-glycol diacrylate, polyethylene-glycol diacrylate, pentaerythritol tetraacrylate, a photoinitiator and an organic peroxide, said composition comprising 30-60% by weight of said unsaturated epoxy resin, 5-30% by weight of said first monomer, 5-40% by weight of said second monomer, 5-25% by weight of said polyunsaturated monomer, 1-5% by weight of said photoinitiator and 1-5% by weight of said organic peroxide, said composition is prepolymerized by means of ultraviolet rays in a first step and then cross-linked in a second step.
Claim 9
Dependent Claim
20 words
A method according to claim 6, wherein the composition is cross-linked by means of ultraviolet rays in the second step.
Claim 10
Dependent Claim
21 words
A method according to claim 6, wherein the composition is cross-linked by means of a temperature rise in the second step.
Claim 11
Dependent Claim
41 words
A method according to claim 6, wherein said fibers are impregnated with said composition, the material obtained is subjected to said prepolymerization by ultraviolet rays, the material is shaped by winding on a mandrel and then subjected to said cross-linking step.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |