CA2312467A1 - Flexible low bulk pre-impregnated tow - Google Patents
Flexible low bulk pre-impregnated tow Download PDFInfo
- Publication number
- CA2312467A1 CA2312467A1 CA002312467A CA2312467A CA2312467A1 CA 2312467 A1 CA2312467 A1 CA 2312467A1 CA 002312467 A CA002312467 A CA 002312467A CA 2312467 A CA2312467 A CA 2312467A CA 2312467 A1 CA2312467 A1 CA 2312467A1
- Authority
- CA
- Canada
- Prior art keywords
- towpreg
- fibers
- resin
- core
- resulting
- 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
Abstract
A method for producing flexible, low-bulk towpreg which involves powder coating a bundle of unspread fiber tows (35) arranged in a predetermined cross-sectional shape, and the resulting towpreg. During the powder coating process, the resin powder particles do not enter into the fiber bundle, but rather only coat the surface fibers comprising the tows, resulting in dry fibers in the core of the towpreg and outer fibers which are coated with a discontinuous sheath of resin on the surface of the towpreg surrounding the core of dry fibers. The resin layer on the surface of the towpreg is formed by a partial melting of the powder particles. A post-treatment process can be used to convert flat ribbon towpreg produced in accordance with the present invention into flexible unidirectional tape.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/404,872 US5756206A (en) | 1995-03-15 | 1995-03-15 | Flexible low bulk pre-impregnated tow |
US08/404,872 | 1995-03-15 | ||
CA002218907A CA2218907C (en) | 1995-03-15 | 1996-03-11 | Flexible low bulk pre-impregnated tow |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002218907A Division CA2218907C (en) | 1995-03-15 | 1996-03-11 | Flexible low bulk pre-impregnated tow |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2312467A1 true CA2312467A1 (en) | 1996-09-19 |
CA2312467C CA2312467C (en) | 2004-02-03 |
Family
ID=25679749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002312467A Expired - Fee Related CA2312467C (en) | 1995-03-15 | 1996-03-11 | Flexible low bulk pre-impregnated tow |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2312467C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3000783A1 (en) * | 2014-09-23 | 2016-03-30 | The Boeing Company | Polymer nanoparticles for controlling permeability and fiber volume fraction in composites |
EP3000922A1 (en) * | 2014-09-23 | 2016-03-30 | The Boeing Company | Printing patterns onto composite laminates |
US10538015B2 (en) | 2014-10-24 | 2020-01-21 | Porcher Industries | Strands powdered by electrostatic method |
-
1996
- 1996-03-11 CA CA002312467A patent/CA2312467C/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3000783A1 (en) * | 2014-09-23 | 2016-03-30 | The Boeing Company | Polymer nanoparticles for controlling permeability and fiber volume fraction in composites |
EP3000922A1 (en) * | 2014-09-23 | 2016-03-30 | The Boeing Company | Printing patterns onto composite laminates |
US9845556B2 (en) | 2014-09-23 | 2017-12-19 | The Boeing Company | Printing patterns onto composite laminates |
US10160840B2 (en) | 2014-09-23 | 2018-12-25 | The Boeing Company | Polymer nanoparticles for controlling permeability and fiber volume fraction in composites |
US10538015B2 (en) | 2014-10-24 | 2020-01-21 | Porcher Industries | Strands powdered by electrostatic method |
Also Published As
Publication number | Publication date |
---|---|
CA2312467C (en) | 2004-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140311 |