Polyethylene product and a method of providing a product, such as a laser welded polyethylene product
US8084138B2 · kind B2 · utility
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12References
19Claims
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Key dates
| Filing date | Apr 13, 2005 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Apr 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of decreasing the penetration depth of radiation provided to an interface, such as a surface, or a predetermined volume in a polyethylene (PE) element, where the PE element has a scattering coefficient larger than one tenth of an absorption coefficient thereof so that the radiation not absorbed at the interface or in the volume but transmitted further into the PE element is at least partly reflected toward the interface/volume. The radiation intensity is higher in the volume and the absorption coefficient may be reduced while retaining the total absorption in the volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.