US5173142A
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Method of making reinforced structural composite assemblies
Assignee: Ticom Corp
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Filing: 1991-07-19
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Granted: 1992-12-22
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Expires: 2011-07-19
Abstract
Abstract The present invention contemplates a method of making a hollow section fiber reinforced composite assembly useful as a structural component wherein a first rigid, fiber reinforced, EB (electron beam) curable-thermoplastic composite member is formed by liquid castable molding (LCM) thermoplastic-forming material about a fiber reinforcement and a second rigid, fiber reinforced, EB curable-thermoplastic composite memer is similarly formed. The first and second rigid, fiber reinforced, thermoplastic members are then fusion bonded together in a manner to form a hollow section. The hollow sectio is subjected to irradiation by high energy electrons effective to cure the bonded first and second fiber reinforced, EB curable-thermoplastic members to a thermoset condition useful in structural applications.
Inventors
- 👤 Charles R. Billiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:57
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/78; B29C65/7855; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/131; B29C66/1312; B29C66/70; B29C66/72; B29C66/721; B29C66/723; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C69/00; B29C69/004; B29C71/00; B29C71/04; B29D; B29D22/00; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0877; B29C65/08; B29C66/20; B29C66/21; B29C66/71; B29C66/7212; B29C66/7214; B29C66/72143; B29K; B29K2075/00; B29K2105/00; B29K2105/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
80 words
A method of making a hollow section fiber reinforced composite assembly, comprising the steps of: a) forming a first rigid, fiber reinforced, EB curable-thermoplastic composite member, b) forming a second rigid, fiber reinforced, EB-curable thermoplastic composite member, c) fusion bonding the first and second fiber reinforced, thermoplastic members to form a hollow section, and d) subjecting the hollow section to irradiation by electrons effective to cure the bonded first and second fiber reinforced, EB-curable thermoplastic members to a thermoset condition.
Claim 2
Independent Claim
80 words
A method of making a hollow section fiber reinforced composite assembly, comprising the steps of: a) forming a first rigid, fiber reinforced, EB curable-thermoplastic composite member, b) forming a second rigid, fiber reinforced, EB-curable thermoplastic composite member, c) fusion bonding the first and second fiber reinforced, thermoplastic members to form a hollow section, and d) subjecting the hollow section to irradiation by electrons effective to cure the bonded first and second fiber reinforced, EB-curable thermoplastic members to a thermoset condition.
Claim 3
Dependent Claim
53 words
The method of claim 1 wherein in step a) the first fiber reinforced, EB-curable thermoplastic member is formed by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid polyol material into a mold about a fiber reinforcement therein and reacting the materials to form an EB curable-thermoplastic matrix about the fiber reinforcement.
Claim 4
Dependent Claim
12 words
The method of claim 2 wherein the polyisocyanate material comprises a diisocyanate.
Claim 5
Dependent Claim
20 words
The method of claim 2 wherein the polyol material comprises an unsaturated esterol and a catalyst for the polyol/polyisocyanate reaction.
Claim 6
Dependent Claim
46 words
The method of claim 4 wherein the unsaturated esterol comprises a fumarate formed by the catalytically induced addition reaction of a dicarboxylic acid anhydride with alkylene oxide in the presence of methacrylic or acrylic acid followed by isomerization of the addition reaction product to the fumarate.
Claim 7
Dependent Claim
53 words
The method of claim 1 wherein in step b) the second fiber reinforced, EB-curable thermoplastic member is formed by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid polyol material into a mold about a fiber reinforcement therein and reacting the streams to form an EB curable-thermoplastic matrix about the fiber reinforcement.
Claim 8
Dependent Claim
12 words
The method of claim 4 wherein the polyisocyanate material comprises a diisocyanate.
Claim 9
Dependent Claim
20 words
The method of claim 4 wherein the polyol material comprises an unsaturated esterol and a catalyst for the polyol/polyisocyanate reaction.
Claim 10
Dependent Claim
46 words
The method of claim 8 wherein the unsaturated esterol comprises a fumarate formed by the catalytically induced addition reaction of a dicarboxylic acid anhydride with alkylene oxide in the presence of methacrylic or acrylic acid followed by isomerization of the addition reaction product to the fumarate.
Claim 11
Dependent Claim
26 words
The method of claim 1 wherein in step c), the first and second fiber reinforced, EB-curable thermoplastic composite members are bonded by fusing portions thereof together.
Claim 12
Dependent Claim
16 words
The method of claim 10 wherein peripheral portions of the composite members are fusion welded together.
Claim 13
Dependent Claim
20 words
The method of claim 1 wherein in step d), the hollow section is subjected to irradiation by an electron beam.
Claim 14
Dependent Claim
15 words
The method of claim 12 wherein the hollow section is passed through the electron beam.
Claim 15
Independent Claim
150 words
A method of making a hollow section fiber reinforced structural composite assembly, comprising the steps of: a) forming a first rigid, fiber reinforced, EB curable-thermoplastic composite member by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid unsaturated esterol material into a mold about a fiber reinforcement therein and reacting the materials to form an EB curable-thermoplastic matrix about the fiber reinforcement, b) forming a second rigid, fiber reinforced, EB curable-thermoplastic composite member by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid unsaturated esterol material into a mold about a fiber reinforcement therein and reacting the materials to form an EB curable-thermoplastic matrix about the fiber reinforcement, c) fusion bonding the first and second fiber reinforced, thermoplastic members to form a hollow section, and d) irradiating the hollow section with electrons to cure the bonded first and second fiber reinforced, EB curable-thermoplastic members to a thermoset condition.
Claim 16
Independent Claim
150 words
A method of making a hollow section fiber reinforced structural composite assembly, comprising the steps of: a) forming a first rigid, fiber reinforced, EB curable-thermoplastic composite member by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid unsaturated esterol material into a mold about a fiber reinforcement therein and reacting the materials to form an EB curable-thermoplastic matrix about the fiber reinforcement, b) forming a second rigid, fiber reinforced, EB curable-thermoplastic composite member by introducing a non-catalyzed, liquid polyisocyanate material and a catalyzed, liquid unsaturated esterol material into a mold about a fiber reinforcement therein and reacting the materials to form an EB curable-thermoplastic matrix about the fiber reinforcement, c) fusion bonding the first and second fiber reinforced, thermoplastic members to form a hollow section, and d) irradiating the hollow section with electrons to cure the bonded first and second fiber reinforced, EB curable-thermoplastic members to a thermoset condition.
Claim 17
Dependent Claim
46 words
The method of claim 14 wherein the unsaturated esterol material comprises a fumarate formed by the catalytically induced reaction of a dicarboxylic acid anhydride with alkylene oxide in the presence of methacrylic or acrylic acid followed by isomerization of the addition reaction product to the fumarate.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |