NEW YORK (Standard&Poor's) Nov. 20, 2006--Standard&Poor's Ratings Services said today that it assigned its 'B' long-term and 'B-3' short-term corporate credit ratings to Wilton, Conn.-based silicone and quartz producer Momentive Performance Materials Inc. (Momentive). The outlook is stable. At the same time, based on preliminary terms and conditions, we assigned a 'B+' senior secured bank loan rating and a recovery rating of '1' to Momentive's proposed $275 million six-year revolving credit facility, $35 million synthetic letter of credit facility, and $1.075 billion seven-year term loan B. These ratings indicate our expectation that lenders would realize a full recovery (100%) of principal in a payment default scenario, assuming a fully drawn revolving credit facility. We also assigned