NEW YORK (Standard&Poor's) April 21, 2014--Standard&Poor's Ratings Services today withdrew all its ratings on Albany, N.Y.-based Momentive Performance Materials Inc., including the 'D' corporate credit rating. RELATED CRITERIA AND RESEARCH Related Criteria General Criteria: Understanding Standard&Poor's Rating Definitions, June 3, 2009 Criteria - Corporates - General: 2008 Corporate Criteria: Analytical Methodology, April 15, 2008