Neenah Paper has signed a definitive  agreement to purchase certain premium brands, including Astrobrights and  Royal, from Wausau Paper. The transaction has been approved by the  boards of both companies and is subject to customary closing conditions.The purchase would be financed through existing credit facilities and  operating cash flows. Closing is expected to occur on Jan. 31, 2012 and  additional details will be shared at that time.