Epoxy resin, coating composition, and method of can inside coating
OwnerHideo Yokoi, Keiji Inomata +2inventors
InventorsHideo Yokoi, Keiji Inomata, Yuji Hirose, Reiziro Nishida
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Abstract
The present invention provides a coating composition comprising: an epoxy resin (C) having a number average molecular weight of 2,500 to 30,000 and an epoxy equivalent of 1,500 to 20,000 g/equiv., and obtainable by reacting a specific low-molecular-weight novolak epoxy resin (A) with a specific low-molecular-weight novolak phenol resin (B); or a neutralized product of a carboxyl-containing acrylic-modified epoxy resin (H) obtainable by reacting the epoxy resin (C) with a carboxyl-containing acrylic resin (G). Also provided is a method for coating the inner surface of a can using the coating composition.
Claims7
An epoxy resin having a number average molecular weight of 2,500 to 30,000 and an epoxy equivalent of 1,500 to 20,000 g/equiv., and obtainable by reacting a low-molecular-weight novolak epoxy resin (A) containing at least 70 wt. % of the compound represented by Formula (1) with a low-molecular-weight novolak phenol resin (B) containing at least 75 wt. % of the compound represented by Formula (2):
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- wherein R1 and R2 each represent hydrogen or methyl, provided that either or both of R1 and R2 represent methyl.
Dependencies are inferred from the claim text.