Eva Harth (IMAGE) University of Houston Caption Eva Harth, director of the Welch-UH Center for Excellence in Polymer Chemistry at the University of Houston, said the new method addresses a long-standing need for industrial plastics producers, without requiring a new catalyst or expensive additives. Credit University of Houston Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.