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專利名稱 Method for enhancing the corrosion resistance of chemical conversion coating aluminum
專利證號 US6074495A
國別 美國
獲證日期 2000-06-13
專利摘要 A method for treating aluminum to enhance corrosion resistance of its surface. The chemical conversion coating aluminum and aluminum alloys are exposed to an aqueous PU solution to form a PU film on the surface. The aqueous PU solution comprises: (i) 5-15% weight of water dispersable polyurethane resin, (ii) 0.1-56 weight of cross-linking agent, and (iii) 80-94.9% weight of water.

IPC國際分類號

B05D000700 | C08G001808 | C08G001883 | C09D017504 | C23C002283