CA2512483A1 - Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles - Google Patents
Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles Download PDFInfo
- Publication number
- CA2512483A1 CA2512483A1 CA002512483A CA2512483A CA2512483A1 CA 2512483 A1 CA2512483 A1 CA 2512483A1 CA 002512483 A CA002512483 A CA 002512483A CA 2512483 A CA2512483 A CA 2512483A CA 2512483 A1 CA2512483 A1 CA 2512483A1
- Authority
- CA
- Canada
- Prior art keywords
- fibers
- composite
- treatment
- strands
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
In one general aspect, the invention involves applying a chemical treatment to fibers, such as reinforcing fibers suitable for making a composite article, so as to size and/or preimpregnate the fibers. The chemical treatment has a relatively low viscosity and is substantially solvent-free and non-radiation curable. Heat energy may be employed to lower the viscosity and improve the wetting ability of the applied treatment and/or to increase the molecular weight of, or otherwise cure, the treatment with essentially no generation of solvent vapor. The treated fibers are used to form a composite strand, which may be subsequently processed in-line or off line into a composite article having fibers disposed in a polymeric matrix. Another general aspect relates to encased composite strands, in thread or pellet form, and to wire-coating methods and apparatus for making them. The strands are moldable into fiber-reinforced thermoplastic composite articles. Each strand is made from fibers, including reinforcing fibers and optionally fibers of a matrix material, that are impregnated with a chemical treatment so that the treatment is disposed between substantially all of the fibers.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/695,504 | 1996-08-12 | ||
| US08/695,909 | 1996-08-12 | ||
| US08/695,909 US6533882B1 (en) | 1996-08-12 | 1996-08-12 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
| US08/695,504 US6099910A (en) | 1996-08-12 | 1996-08-12 | Chemical treatments for fibers |
| CA002262935A CA2262935C (en) | 1996-08-12 | 1997-08-07 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002262935A Division CA2262935C (en) | 1996-08-12 | 1997-08-07 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2512483A1 true CA2512483A1 (en) | 1998-02-19 |
| CA2512483C CA2512483C (en) | 2008-11-18 |
Family
ID=34977004
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002512483A Expired - Lifetime CA2512483C (en) | 1996-08-12 | 1997-08-07 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
| CA002512098A Expired - Lifetime CA2512098C (en) | 1996-08-12 | 1997-08-07 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002512098A Expired - Lifetime CA2512098C (en) | 1996-08-12 | 1997-08-07 | Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2512483C (en) |
-
1997
- 1997-08-07 CA CA002512483A patent/CA2512483C/en not_active Expired - Lifetime
- 1997-08-07 CA CA002512098A patent/CA2512098C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2512098A1 (en) | 1998-02-19 |
| CA2512098C (en) | 2007-07-17 |
| CA2512483C (en) | 2008-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20170807 |