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Hydrophilizing plasma coating
专利权人:
BIOENERGY CAPITAL AG
发明人:
Martin Görne,Thomas Kordick
申请号:
US14351504
公开号:
US09173974B2
申请日:
2013.02.01
申请国别(地区):
US
年份:
2015
代理人:
摘要:
The invention relates to a method for hydrophilizing surfaces of polymer workpieces. The method has a step (a) of pretreating the workpiece surfaces in a high-frequency gas plasma which is produced on the basis of an inert gas in order to clean and activate the workpiece surfaces; a step (b) of precoating the pretreated workpiece surfaces with polyacrylic acid using a high-frequency gas plasma made of a gas mixture, said gas mixture being composed of an inert gas and a first gas made of biocompatible, polymerizable carboxy group-containing monomers; and a step (c) of subsequently coating the precoated workpiece surfaces using a second gas substantially containing acrylic acid monomers.
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