By any measure, our sulfonated polystyrene polymers get high marks.
National Starch and Chemical offers the broadest line of sulfonated polymers in the industry. Put them to the test, and you'll find that they deliver excellent thermal stability plus superior pH and alkali stability. National's VERSA-TL® line of sulfonated polymers are water soluble and function as dispersants, complexing agents, thickeners and electro-conductives. Current applications include photographic film production, oil well drilling, water treatment and many more. If you have a specialized application and you think a VERSA-TL sulfonated polystyrene polymer or copolymer may be the answer, why not discuss it with us. Samples are available. Write National Starch and Chemical Corporation, Finderne Avenue, Bridgewater, New Jersey 08807 or call (201) 685-5250.
National Starch and Chemical Corporation PERFORMANCE POLYMERS CIRCLE 21 ON READER SERVICE CARD