Compacted olefin fibers
US7279441B2 · kind B2 · utility
10Cited by
24References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Nov 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/69
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polyolefin plaque is made by hot compaction of an assembly of fibres of the oriented polymer. It has been found to be beneficial to subject the fibres to a prior crosslinking process. Hot compaction is then less temperature-sensitive and produces plaques with excellent hot strength properties. Preferably the fibres have been subjected to prior stages of irradiation and annealing, both in a non-oxidising environment, for example acetylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.