...NEW YORK (Standard & Poor's) March 31, 2015--Standard & Poor's Ratings Services today assigned its '###+' issue rating and '3' recovery rating to Columbus, Ohio-based global manufacturer and marketer of thermoset resins, Hexion Inc.'s $315 million senior secured notes due 2020. Hexion will use note proceeds to redeem outstanding debentures and for general corporate purposes. All existing ratings on Hexion, including the '###+' corporate credit rating, are unchanged. The outlook is negative. The '3' recovery indicates meaningful (the lower end of the 50% to 70% range) recovery in a default scenario. The ratings on Hexion reflect our assessments of the company's "weak" business profile and "highly leveraged" financial risk profile. (For the latest corporate credit rating research update, see Standard & Poor's "Momentive Specialty Chemicals Inc. Corporate Credit Rating Lowered to `###+' From `B-'; Outlook Negative", published Oct. 1, 2014, on RatingsDirect). RELATED CRITERIA AND RESEARCH Related...