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US 2004/0062869 A1Published application
Waterborne lubricant and method for treating metal surfaces
OwnerRyosuke Kawagoshi, Masaaki Fuji +1inventors
InventorsRyosuke Kawagoshi, Masaaki Fuji, Masayuki Yoshida
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Abstract
A waterborne lubricant is provided that can form coatings on metal surfaces, inexpensively and with little environmental pollution load, wherein said coatings exhibit very good sliding properties. Also, a surface treatment method that uses the novel waterborne lubricant is provided. The waterborne lubricant contains molybdenum disulfide and waterborne resin having specified characteristics.
Claims11
A waterborne lubricant comprising:
- (a) molybdenum disulfide having an average particle diameter of 0.5 to 10 μm;
- and
- (b) a waterborne resin having a weight average molecular weight of 5,000 to 50,000, a rupture strength of at least 300 kg/cm2 , and a rupture elongation no greater than 10%.
Dependencies are inferred from the claim text.