Patent ID: 7514124

Claim:
A white conductive primer coating composition comprising: (a) 100 parts by weight of a resin mixture of a chlorinated polyolefin resin with a chlorine content of 10 to 40 wt. %, and at least one modifier resin selected from the group consisting of acrylic resins, polyester resins and polyurethane resins; (b) 5 to 50 parts by weight of a crosslinking agent; and (c) 10 to 250 parts by weight of a white conductive titanium dioxide powder which comprises titanium dioxide particles having on their surfaces a conductive layer comprising tin oxide and phosphorus, and in which the content (A) of metallic elements with valencies of 4 or less contained as impurities is no more than 0.1; the content (A) being calculated by the following formula (1) ( A )=( M 1 )×(4 −n 1 )+( M 2 )×(4 −n 2 )+( M 3 )×(4 −n 3 )+( M 4 )×(4 −n 4 )+ . . . +( M X )×(4 −n X ) Formula (1) wherein M 1 , M 2 , M 3 , M 4 , . . . M X are the atomic ratios of metallic elements with valencies of 4 or less to Sn of the tin oxide in the white conductive titanium dioxide powder; n 1 , n 2 , n 3 , n 4 , . . . n X are the valencies of metallic elements having atomic ratios of M 1 , M 2 , M 3 , M 4 , . . . M X , respectively; and X in M X and n X is the number of such metallic elements contained in the white conductive titanium dioxide powder, and may be a natural number 1 or more.