Coating composition for lubricating coating film
AssigneeDow Corning Toray Co., Ltd.
InventorsTakahiko Sasaki, Tetsuji Yamaguchi
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Abstract
A coating composition for a lubricating coating film includes: (A) a phenolic resin; (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000; and (C) at least one type of solid lubricant. The epoxy equivalent weight is generally defined by the number average molecular weight per the number of epoxy groups in a single molecule. The coating composition has a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %. A lubricating coating film, formed from the coating composition, has a high level of flexibility on surfaces of various base materials.
Claims20
A coating composition for a lubricating coating film, the coating composition comprising:
- (A) a phenolic resin;
- (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000, the epoxy equivalent weight defined by the number average molecular weight per the number of epoxy groups in a single molecule;
- and
- (C) at least one type of solid lubricant;
- wherein a weight ratio of component (A) per the total weight of component (A) and component (B) is at least 50 weight %;
- wherein component (C) comprises:
- (C1) fluororesin comprising polytetrafluoroethylene;
- and
- (C2) one or more types of metal oxide or metal nitride selected from titanium nitride, titanium oxide, aluminum oxide, silicon nitride, silicon dioxide, and mixtures thereof;
- wherein the weight % ratio of component (C1) and (C2) is in a range of 60:40 to 85:15;
- and
- wherein the coating composition is free of carbon fibers.
Dependencies are inferred from the claim text.