Lyondell Chemical Co., Newtown Square, PA, plans to expand production capacity for its MPDiol glycol (2-methyl-1,3-propanediol) as part of its recently announced butanediol facility project in Rotterdam, The Netherlands. The new capacity of 45 million pounds per year will more than double Lyondell's current worldwide capacity for the product. MPDiol is used as an intermediate in a variety of coatings.