EP0547330A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for manufacturing product made of fiber-reinforced resin and product manufactured by method
Assignee: Sumitomo Rubber Industries Ltd
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Filing: 1992-10-19
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Granted: —
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Expires: 2012-10-19
Abstract
Abstract Fibers consisting of two or more kinds of fibers in the form of roving, tape, yarn, monofilament or cloth are preformed by winding them around the core by filament winding method and is then set in the cavity of the mold so that resin impregnates the preformed fibers by reaction injection molding method. In this manner, a product made of fiber-reinforced resin and having a predetermined configuration can be obtained. If necessary, the preformed fibers are bent and then set in the cavity of the mold. It is preferable that two or more kinds of fibers are wound around the core. The fibers are dipped in liquid or a binder which does not hinder the polymerization of an unreacted monomer to be used in reaction injection molding before they are wound around the core.
Inventors
- 👤 Kazumi Fujita
- 👤 Tetsuo Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/566; B29B; B29B11/00; B29B11/14; B29B11/16; B29C53/02; B29C53/08; B29C53/083; B29C53/58; B29C53/583; B29C53/585; B29C53/80; B29C53/82; B29C53/821; B29C53/824; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/48; B29K; B29K2105/00; B29K2105/06; B29L; B29L2023/00; B29L2023/004; B29L2031/00; B29L2031/52; B29L2031/5245
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
A method for manufacturing a product made of fiber-reinforced resin of a required configuration comprising the steps of: winding fibers such as roving, tape, yarn, monofilament or cross around a core to preform said fibers by filament winding method; setting said core and said preformed fibers integral with each other in a cavity of a mold; injecting an unreacted solution of resin serving as matrix resin into said cavity; and carrying cut reaction injection molding.
Claim 2
Dependent Claim
28 words
A method as defined in claim 1, wherein said fibers to be wound around said core by filament winding method consists of two or more kinds of fibers.
Claim 3
Dependent Claim
23 words
A method as defined in claim 1, wherein resin to be used in reaction injection molding consists of RIM nylon, cyclopentadiene or epoxy.
Claim 4
Dependent Claim
23 words
A method as defined in claim 2, wherein resin to be used in reaction injection molding consists of RIM nylon, cyclopentadiene or epoxy.
Claim 5
Dependent Claim
55 words
A method as defined in claim 1, wherein said core consists of a tube which covers a mandrel; is removed from said mandrel after said fibers are wound around said core; is set in a reaction injection molding mold together with said fibers; and the the interior of said tube is fulled with pressure gas.
Claim 6
Dependent Claim
55 words
A method as defined in claim 2, wherein said core consists of a tube which covers a mandrel; is removed from said mandrel after said fibers are wound around said core; is set in a reaction injection molding mold together with said fibers; and the the interior of said tube is fulled with pressure gas.
Claim 7
Dependent Claim
27 words
A method as defined in claim 1, wherein said core consists of a solid body and set in said reaction injection molding mold together with said fibers.
Claim 8
Dependent Claim
27 words
A method as defined in claim 2, wherein said core consists of a solid body and set in said reaction injection molding mold together with said fibers.
Claim 9
Dependent Claim
12 words
A method as defined in claim 5, wherein said tube is flexible.
Claim 10
Dependent Claim
13 words
A method as defined in claim 7, wherein said solid body is flexible.
Claim 11
Independent Claim
37 words
A method as defined in claim in claims 1, wherein said reinforcing fibers are dipped in water, an organic solvent or a mixture thereof before said reinforcing fibers are wound around said core by filament winding method.
Claim 12
Dependent Claim
37 words
A method as defined in claim in claim 2, wherein said reinforcing fibers are dipped in water, an organic solvent or a mixture thereof before said reinforcing fibers are wound around said core by filament winding method.
Claim 13
Dependent Claim
38 words
A method as defined in claim 11, wherein said organic solvent is selected from among methanol, carbon tetrachloride, chloroform, hexane, cyclohexane, benzene, toluene, 1, 2-dichloroethane, isopropanol, tetrahydrofuran, 1, 4-dioxane, acetone, methyl ethyl ketone, diethyl ether, methanol, and ethanol.
Claim 14
Dependent Claim
32 words
A method as defined in claim 1, wherein said reinforcing fibers are dipped in a solution containing soluble nylon before said reinforcing fibers are wound around said core by filament winding method.
Claim 15
Dependent Claim
32 words
A method as defined in claim 2, wherein said reinforcing fibers are dipped in a solution containing soluble nylon before said reinforcing fibers are wound around said core by filament winding method.
Claim 16
Dependent Claim
39 words
A method as defined in claim 1, wherein said reinforcing fibers are dipped in water, an organic solvent or a mixture thereof each containing soluble nylon before said reinforcing fibers are wound around said core by filament winding method.
Claim 17
Dependent Claim
39 words
A method as defined in claim 2, wherein said reinforcing fibers are dipped in water, an organic solvent or a mixture thereof each containing soluble nylon before said reinforcing fibers are wound around said core by filament winding method.
Claim 18
Dependent Claim
51 words
A product made of fiber-reinforced resin comprising; fibers consisting of two or more kinds of fibers in the form of roving, tape, yarn, monofilament or cloth preformed by winding said fibers around a core by filament winding method, and matrix resin which impregnates said preformed fibers by reaction injection molding method.
References Cited (Backward Citations)
No citation records indexed.
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