UPDATE 2-Smurfit-Stone files for Chapter 11 bankruptcy

PK) have filed for bankruptcy protection in the past four weeks. Some of Smurfit-Stone's top customers include Kellogg Co (K.N), PepsiCo Inc (PEP.N) and Unilever (ULVR.L). The case is In re Smurfit-Stone Container Corp, US Bankruptcy Court, for the...