Patent US5319003A successfully refreshed from Google Patents.
US5319003A
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Method for improving the mechanical performance of composite articles
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1992-09-30
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Granted: 1994-06-07
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Expires: 2012-09-30
Abstract
Abstract A process for making a composite article having improved mechanical properties such as fatigue life, which process comprises contacting at least one continuous filament with a mixture comprising a resin and a strain relieving polymer.
Inventors
- 👤 Jaime A. Gomez
- 👤 Glenn R. Magrum
- 👤 Eric R. Pohl
- 👤 Frederick D. Osterholtz
- 👤 Joshua B. Sweeney
- 👤 Leonard J. Adzima
- 👤 Martin C. Flautt
- 👤 Paul R. Krumlauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:29
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1369
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
In a process for forming a reinforced resin composite article, comprising the following steps: a) coating at least one continuous filament with a thermosetting mixture comprising: i) a resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, and mixtures thereof; ii) a sytrene monomer; and iii) a thermoplastic polymer; and b) subjecting the resulting coated filament(s) to a filament winding or protrusion treatment of form said coated filament into a desired shape and cure the thermosetting mixture; the improvement wherein the thermoplastic polymer comprises a polyvinylacetate homopolymer.
Claim 2
Dependent Claim
91 words
In a process for forming a reinforced resin composite article, comprising the following steps: a) coating at least one continuous filament with a thermosetting mixture comprising: i) a resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, and mixtures thereof; ii) a sytrene monomer; and iii) a thermoplastic polymer; and b) subjecting the resulting coated filament(s) to a filament winding or protrusion treatment of form said coated filament into a desired shape and cure the thermosetting mixture; the improvement wherein the thermoplastic polymer comprises a polyvinylacetate homopolymer.
Claim 3
Dependent Claim
30 words
The process of claim 1 wherein said at least one continuous filament is selected from the group consisting of polyaramid fiber, graphite fiber, boron fiber, glass fiber, and mixtures thereof.
Claim 4
Dependent Claim
15 words
The process of claim 2 wherein said at least one continuous filament is glass fiber.
Claim 5
Dependent Claim
21 words
The process of claim 3 wherein said at least one continuous filament is glass fiber made by the in-line drying process.
Claim 6
Dependent Claim
14 words
The process of claim 1 wherein the thermosetting mixture further comprises a curing catalyst.
Claim 7
Dependent Claim
22 words
The process of claim 5 wherein sad catalyst is selected from the group consisting of organic peroxides, organic hydroperoxides, and azo compounds.
Claim 8
Dependent Claim
104 words
In a process for forming a reinforced resin composite article, comprising the following steps: a) coating at least one continuous glass filament with a thermosetting mixture comprising: i) a resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, and mixtures thereof; ii) a styrene monomer and iii) a thermoplastic polymer; and b) subjecting the resulting coated filament to a filament winding or protrusion treatment to form said coated filament(s) into a desired shape and cure the thermosetting mixture; the improvement wherein the thermosplastic polymer comprises a polyvinylacetate homopolymer and the continuous glass filament is made by an in-line drying process.
Claim 9
Dependent Claim
104 words
In a process for forming a reinforced resin composite article, comprising the following steps: a) coating at least one continuous glass filament with a thermosetting mixture comprising: i) a resin selected from the group consisting of unsaturated polyester resins, vinyl ester resins, and mixtures thereof; ii) a styrene monomer and iii) a thermoplastic polymer; and b) subjecting the resulting coated filament to a filament winding or protrusion treatment to form said coated filament(s) into a desired shape and cure the thermosetting mixture; the improvement wherein the thermosplastic polymer comprises a polyvinylacetate homopolymer and the continuous glass filament is made by an in-line drying process.
Claim 10
Dependent Claim
14 words
The process of claim 7 wherein said thermosetting mixture further comprises a curing catalyst.
Claim 11
Dependent Claim
22 words
The process of claim 8 wherein said catalyst is selected from the group consisting of organic peroxides, organic hydroperoxides, and azo compounds.
Claim 12
Dependent Claim
10 words
A composite article made by the process of claim 1.
Claim 13
Dependent Claim
10 words
A composite article made by the process of claim 7.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |