PITTSBURGH - A Pennsylvania federal judge on Dec. 5 denied an insurer's motion to dismiss claims seeking contribution from it for underlying personal injuries lawsuits arising out exposure to a chemical product on the basis that it is possible that the insurer owes indemnification for defense of the underlying suits (National Union Fire Insurance Company of Pittsburgh, Pa. et al. v. Essex Insurance Co., No. 13-32, W.D. Pa.; 2013 U.S. Dist. LEXIS 171401).