Stephen O'Rourke, MS, Chemistry

Technical Director, Polymer Additives Stephen O'Rourke, MS, Chemistry Hallstar 5851 W. 73rd St. Chicago, IL USA 60638 Email: sorourke@hallstar.com Biographical Sketch: Biography Stephen O’Rourke B.S. Chemistry - Eastern Illinois University 1975 M.S. Chemistry-St. Louis University-1978 Lanson Chemical - East St. Louis, IL 1975-1977 Product Development Chemist - Production Manager Manufacturer of Alkyd and Latex Polymers Marchem - St. Louis, MO 1977-1979 Product Development Chemist - Urethanes and PVC Plastisols Insta-Foam Products - 1979-1983 Group Leader - Technical Development Process Engineer - Urethane Foams Hallstar - 1983-Present Group Leader - Technical Service Supervisor - Commercial Development Product Manager - Elastomers Commercial Development Manager Product Development Manager Technical Director, Polymer Additives Personal: Married to Margo, four children, enjoy fishing and all sports.