| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-chromium coating type anticorrosive for aluminum materials which contains neither chromium nor alternative metals for chromium and has anticorrosion property practically equal to that of chromating. SOLUTION: The non-chromium coating type anticorrosion for fin material contains a quaternary copolymer (A) and a heterocyclic organic compound (B). The quaternary copolymer (A) is prepared by neutralizing a base of a quaternary copolymer (a) constituted of glucopyranosil alkyl (meth)acrylate (a1), dialkylaminoethyl (meth)acrylate (a2), hydroxyalkyl (meth)acrylate (a3) and alkyl (meth)acrylate (a4) using the anticorrosive (c). The heterocyclic organic compound (B) is derived from carboxylic acid (b) having 1,3-dioxane rings and has two or more 1,3-dioxane rings. COPYRIGHT: (C)2005,JPO&NCIPI
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