INDIANAPOLIS (Oct. 7)—Great Lakes Chemical Corp. will raise prices on its pentabromodiphenyl oxide-based flame retardants and all grades of antimony trioxide, effective Oct. 16. The pentabromodiphenyl oxide-based flame retardants cost will increase 10 cents per pound in the Americas and $220 per metric ton in Europe and the Asia Pacific region. Prices for the firm's antimony trioxide grades will rise 50 cents per pound in the Americas and $1,100 per metric ton in Europe and the Asia Pacific region. Prices for other antimony derivatives also will increase based on antimony content. Great Lakes said higher costs for producing the flame retardants and increasing value for antimony metal necessitated the price hikes.