Rigidifiable plastic composites and manufacturing methods therefor
US5874151A · kind A · utility
17Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Rigidifiable composites are formed by stitching a reinforced B-stage resin sheet stock to form a three-dimensional preform. The preform is subsequently rigidified by initiating final cure of the resin. Molded articles, inflatable and other structures, such as, tank, tunnel and sewer liners are some of the typical structures which can be formed by the methods of the invention. Control of thread count, thread tension and thread spacing can be used to consolidate multi-ply or layered preforms, which, upon cure, can have up to 90% of the load carrying capacity of compression molded fiber reinforced articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.