Method to prepare high strength ultrahigh molecular weight polyolefin articles by dissolving particles and shaping the solution
US5032338A · kind A · utility
35Cited by
8References
19Claims
0Family size
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Key dates
| Filing date | May 22, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method to prepare high strength high modulus polyolefin shaped articles comprising forming a heated solution of the polyolefin from particles of which about 75 to 100% by weight have a particle size of from about 100 to about 400 microns and having a weight average molecular weight of from about 300,000 to 7,000,000, then shaping the heated soltion then cooling the shaped solution. To further increase the strength of the article it can be stretched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.