The Oil and Colour Chemists' Association. Oil and Colour Chemists'Association Oil and Colour Chemists' Association Journal of the Oil and Colour Chemists' Association/ Oil and Colour Chemists' Association, Australia. The American Leather Chemists Association Journal of the Oil & Colour Chemists' Association The Manufacturing Chemists' Association. prepared by the Oil and Colour Chemists' Association, Australia. Manufac turing chemists Association.