Kraton Performance Polymers advances after S&P revises outlook Shares of Kraton Performance Polymers (KRA) are one of today's few winners in a down market after S&P revised its outlook on the company to Positive from Stable earlier today. The company’s polymers are found in products ranging from diapers to adhesives to roofing products. WHAT'S NEW: Kraton's plan to combine with LCY Chemical's sytrenic block copolymers assets could improve Kraton's financial risk, S&P stated in a press release. The firm affirmed its B+ corporate credit rating on the company. ANOTHER TO WATCH: Another polymer maker is PolyOne (POL). PRICE ACTION: In mid-afternoon trading, Kraton climbed 49c, or about 2%, to $25.50.