Dr. Gary Conroy Dr. Gary Conroy, director of research and development at Rohm & Hass. Like most RWC students, Gary held down a full-time job while pursuing his education. In fact, he worked full-time for the 22 years between when he graduated with his associate's degree in science from RWC and when he earned his doctorate in Chemistry. Today, he manages a staff of 30 scientists who are involved in leading-edge research in the field of PVC stabilization. He is widely regarded as a leading expert in his field, holding seven US patents (with three more pending). In fact, his work in developing environmentally-friendly PVC stabilizers is considered crucial to the green chemistry movement.