HERCULES RESEARCH

John J. McHugh, Hexcel Corporation, Hercules Research Center, Wilmington, Delaware 19808, USA... 

Submitted on August 11, 1988. This is Hercules Research Center Contribution Number 2013. 

Materials. Hydrophobically modified hydroxyethyl cellulose (HM-HEC) research samples were supplied by the Hercules Research Center. The compositions of the samples determined according to the preparation recipes, rather than by analysis, are summarized... 

Steller, K., Hercules Research Center, private communication. 

We thank Thomas F. Sanderson, Hercules Research Center, Wilmington, DE, for a sample of pure abietic acid and Roxanne J. Fine, Vassar College, for the preparation of the other standards. 

Hercules Incorporated Hercules Research Center Wilmington, DE 19899... 

J, B. Class (Hercules Research Center) Did you examine PSA properties as a function of the time elapsed between curing of the film and assembling the test piece ... 

Jay B. Class received his Ph.D. from the Pennsylvania State University in Organic Chemistry (1952). He joined Hercules Incorporated in 1952. Dr. Class research has been pr imar ily concerned with resins, elastomers and adhesives. He has been head of both the Rubber Laboratory and Adhesives Laboratory at Hercules. He is presently a Research Scientist in the Polymer Science Division at the Hercules Research Center. 

Sung Gun Chu received his B.S. from Han Yang University, Seoul, Korea and his Ph.D. from the University of Texas (1978) in Polymer Physical Chemistry. He joined Hercules Incorporated in 1981 and is presently a Research Chemist in the Adhesives Laboratory at the Hercules Research Center. 

Marlene Jones received her B.A. degree in Chemistry from Thiel College. She joined Hercules Incorporated in 1972 and is currently a Sales Development Supervisor in the Resins Division. Prior to this, Marlene held the position of Staff Chemist in the Adhesives Laboratory at the Hercules Research Center. Her experience in adhesives is primarily in the pressure-sensitive field. 

Sung Gun Chu, chemist, received a Ph.D. degree in physical polymer chemistry from the University of Texas at Austin in 1978. His main interests are in the property-structure processing relations of polymeric materials, and the rheology of polymers. Since Dr. Chu began work at Hercules in April 1981, he has been involved in the study of adhesives and sealants. He is also involved in the development of new, tough matrix resins for graphite composite applications, has published over 20 papers, and has several patents on adhesives and composite resins. He is presently a Project Leader in Adhesives at the Hercules Research Center. 

David Breslow of the Hercules Research Center recognized in the mid-1950s that efforts to identify a homogeneous ethylene polymerization catalyst system would be an important step in understanding the nature of... 

Hercules Research Center Contribution No. 1645 Current address Hercules Incorporated, Bacchus Works, Magna, Utah 84044... 

---