Patent ID: 6571864
Filing Date: 2003-06-03
Classification: A01N,B05D,F28F,Y10T

Abstract:
An aluminum-alloy fin material with antibacterial and antifungal properties, comprising:(i) a first film with average dry thickness of 0.8-2.2 microns, comprising a water-soluble resin paint containing 1-30 wt % of (A) bis-(2-pyridylthio)-zinc-1,1â€²-dioxide particles of the total solids in the composition of the paint, 40 or more vol % of said bis-(2-pyridylthio)-zinc-1,1â€²-dioxide particles being 1-10 microns in diameter; (ii) a second film with average dry thickness of 0.1-0.6 microns, formed on the first film, said second film comprising a mixed aqueous solution which comprises (P1) vinyl resin with secondary alcoholic structure or derivative thereof, (P2) a water soluble acrylic resin with sulfonic acid group or salt(s) thereof and (B) water block isocyariate compound, in the range of (P1):(P2)=1:8 by weight for solids or in the range of ((P1)+(P2)):(B)=94:6 to 86:14 by wt % for solids.