PURPOSE: To obtain a water-repellent lustering agent improved in luster, water- repellency, removability by wiping, and persistence of luster by dissolving a specific higher alcohol, an alicyclic satd. hydrocarbon resin, and an alkyl- modified silicone wax in a solvent.
CONSTITUTION: This water-repellent lustering agent is prepd. by thermally dissolving 0.5-10.0wt.% higher alcohol represented by CnH2n+1 (wherein (n) is 25 or higher 0.2-5.0wt.% alicyclic hydrocarbon resin which is colorless, transparent, tasteless, and odorless, is excellent in heat resistance, weatherability, and water repellency, is known as a self-adhesive tape or a hot-melt adhesive, and has a softening point of 70-125°C, a mol.wt. of 600-820, and an acid value of 0.2-10.0wt.% alkyl-modified silicone wax obtd. by the addition reaction of polymethylhydrogensiloxane or polymethylhydromethylsiloxane copolymer to a hydrocarbon having at least one double bond and represented by formula I, II, or II (wherein X1, X2, and X3 are each a long-chain alkyl), a hydrocarbon wax, a fluorine-modified wax, a lubricant, etc., in a solvent.
NONAKA JUNICHI