Patent No. U.S. 7,247,677 B2
Daikin Industries, Ltd. has obtained a patent for a thermosetting powder coating composition comprised of a fluorine-containing copolymer and a curing agent, in which the copolymer contains, as essential structural units, a fluoroolefin unit, an alkene unit and p-tertiary butyl vinyl benzoate unit, has the p-tertiary butyl vinyl benzoate unit in an amount of from 5-20% by mole, has a thermal transition temperature of from 45° to 120° C and has a crosslinkable reaction group.