High clarity, low friction polyethylene compositions for films
US7265183B2 · kind B2 · utility
3Cited by
13References
21Claims
0Family size
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Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Mar 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31562
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A melt-blended polyethylene/COP composition suitable for making optically clear films with low coefficients of friction includes from about 70 to about 98 weight percent of a polyethylene resin and from about 2 to about 25 weight percent of a first COP resin component, the first COP resin component having a weight average molecular weight of from about 0.5 kg/mol to about 50 kg/mol and being present in an amount effective to increase the relative slip value of films made from the composition as compared with a like film made from the polyethylene resin alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.