| CPC C09D 5/08 (2013.01) [C09D 7/65 (2018.01); C09D 123/20 (2013.01)] | 6 Claims |
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1. An anti-rust composition, comprising a polybutene-based polymer, a wax having a melting point of 35° C. or higher, and a polyaniline-based polymer, and optionally a hydrogenated styrene-based thermoplastic elastomer, an oil having iodine value of more than 100, an alkyd resin, and/or a hydrocarbon-based solvent, and comprising no fillers,
wherein, relative to a total amount of anti-rust composition, which is 100% by mass,
a content of the polybutene-based polymer is 20% or more by mass and 70% or less by mass,
a content of the wax having a melting point of 35° C. or higher is 7% or more by mass and 35% or less by mass,
a content of the polyaniline-based polymer is 3% or more by mass and 15% or less by mass,
a content of the hydrogenated styrene-based thermoplastic elastomer is 5% or less by mass,
a content of the oil having iodine value of more than 100 is 30% or less by mass,
a content of the alkyd resin is 50% or less by mass,
a content of the hydrocarbon-based solvent is less than 30% or less by mass, and
a total content of the polybutene-based polymer, the wax having a melting point of 35° C. or higher, the polyaniline-based polymer, the hydrogenated styrene-based thermoplastic elastomer, the oil having iodine value of more than 100, the alkyd resin, and the hydrocarbon-based solvent is 80% or more by mass,
wherein the polybutene-based polymer has a pour point of 25° C. or lower and −10° C. or higher as measured in accordance with JIS K2269:1987, and
the wax having a melting point of 35° C. or higher is constituted by two or more waxes having different melting points, and each wax has an acid value of 5 mgKOH/g or more and 200 mgKOH/g or less.
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