India, Nov. 4 -- Japanese chemicals maker Zeon Corporation raised its full-year operating profit forecast after first-quarter earnings more than doubled, driven by robust demand for battery materials and optical films.

The Tokyo-based company, which produces speciality plastics and synthetic rubbers, posted operating income of 12.1 billion yen ($83.3 million) for the three months to June 30, up 136 percent from the previous quarter and 59 percent higher year-on-year.

Net sales declined 2 percent to 103.1 billion yen from a year earlier, affected by yen appreciation and lower elastomer prices reflecting declining raw material costs. However, sales volumes of optical films and battery materials increased during the period.

The company re...