21-01-2021 дата публикации
Номер: US20210020335A1
Принадлежит:
One aspect relates to a process for preparing a processed filament, including provision of a filament, including a segment. At least in the segment, the filament includes a core, including a first metal, a first layer which is superimposed on the core, and includes a polymer, and a second layer which is superimposed on the first layer, and includes a second metal. The segment of the filament is processed by interaction of the segment with at least one beam of electromagnetic radiation of a first kind. The electromagnetic radiation of the first kind has a spectrum with a peak wavelength in the range from 430 to 780 nm. Further, one aspect relates to a processed filament, obtainable by the process; a filament; an electrical device, including at least a part of the processed filament. 1. A process for preparing a processed filament , the process comprising: wherein, at least in the segment, the filament comprises', 'i) a core, comprising a first metal,', I) is superimposed on the core, and', 'II) comprises a polymer, and, 'ii) a first layer which'}, I) is superimposed on the first layer, and', 'II) comprises a second metal; and, 'iii) a second layer which'}], 'a) providing a filament, comprising a segment,'}b) processing the segment of the filament by interaction of the segment with at least one beam of electromagnetic radiation of a first kind;wherein the electromagnetic radiation of the first kind has a spectrum with a peak wavelength in the range from 430 to 780 nm.2. The process of claim 1 , wherein a surface of the first layer has an average roughness Ra in the range from 0.07 to 4 μm.3. The process of claim 1 , wherein a surface of the first layer has a root-mean-squared roughness Rin the range from 0.2 to 7 μm.4. The process of claim 1 , wherein the at least one beam of electromagnetic radiation of the first kind is at least one laser beam of a first kind claim 1 , wherein the at least one laser beam of the first kind is at least one pulsed laser beam of the ...
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