TONEN SEKIYU AND EXXON UNIT STUDYING RESIN PROJECT <Tonen Sekiyukagaku KK> and <Exxon Chemical Co>, a petrochemical division of Exxon Corp <XON>, said they agreed to accelerate a study to set up an equally-owned joint venture to make waterwhite resin in Japan. Details of the venture, to be based on Exxon Chemical technology, will be set later, the companies said. Waterwhite resins are widely used in adhesive applications for baby nappies, medical tapes, and other bonding agents. Tonen is a wholly-owned subsidiary of Toa Nenryo Kogyo KK <TNEN.T> which is owned 25 pct by Exxon Corp.