
    Koppers Company, Inc., Respondent, v. Empire Bituminous Products, Inc., Appellants, et al., Defendant.
    Aruged February 10, 1972;
    decided March 15, 1972.
    
      
      Terrance Hoffman for appellants.
    
      John J. Costello for respondent.
   no opinion.

Concur: Chief Judge Fuld and Judges Burke, Scileppi, Bergan, Breitel, Jasen and Gibson.  