The solvent type water repellency plectrum oily fluid composition and the mixed solvent,

摘要

PROBLEM TO BE SOLVED: To obtain a novel solvent type composition having an excellent water- and oil-repellent performance, comprising fine particles which contain a mixed solvent of a hydrocarbon solvent with a polar solvent and two kinds of specific polymers in the each particle. ;SOLUTION: This composition comprises fine particles containing, in the each particle, (A) a solvent mixture of a hydrocarbon, preferably n-heptane with a polar solvent, preferably acetone, (B) a polymer dissolving singly in the mixed solvent (A), and (C) a polymer which does not dissolve singly in the mixed solvent (A) and contains the polymer units of a acrylic ester and/or methacrylic polyfluoroalkyl (addreviated to R^f group)-containing ester and the polymer units of alkyl (meth)acrylate. The component B is preferably a polymer containing 5-65wt.% of (meth)acrylic R^f group-containing ester and 35-95wt.% of (meth)acrylic alkyl ester.;COPYRIGHT: (C)1997,JPO