Preparation of ultra high molecular weight polyethylene
US10647792B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Aug 30, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Particulate ultra high molecular weight polyethylene (pUHMWPE) are disclosed having an intrinsic viscosity (IV) of at least 4 dl/g, a molecular weight distribution Mw/Mn of less than 4.0, a median particle size D50 of between 50 and 200 μm, a residual Ti-content of less than 10 ppm, a residual Si-content of less than 50 ppm, and a total ash content of less than 1000 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.