PURPOSE: The titled covering paint that is composed of a hydrocarbon linear polymer with hydroxyls and the saturated main chain as a vehcle and a specific amount of fine powder of metal oxide such as tin oxide, thus being suitably used in record disc packaging and shrink package, because it has high electroconductivity to prevent the contents from being charged electrically.
CONSTITUTION: (A) A hydrocarbon linear polymer which has at least one hydroxyl in the molecule and the saturated main chain, e.g., a polybutadiene hydroxylated in its terminals, when necessary, hydrogenated, with a molecular weight of 400W48,000 is combined with (B) 30W60wt% of a fine powder of at least one metal oxide (preferably of less than 2μ particle sizes) selected from tin oxide, antimony oxide and indium oxide.
USE: Enclosing of electronic products, shrink packaging for transport containers, trays, semiconductor printing bases.
FUJII TOSHIO
HASEGAWA KOUICHI
SEKI IWAO
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