1. Boynton-Hercules, Inc. Private Communication to P. F. Bruins, Polytechnic Institute of New York, dated July 1, 1975. SPE NATEC, October 1975, Louisville, Kentucky, “Broadening the Capability of Polypropylene,” Bob Heinhold, Hercules, Inc
2. SPI. 33rd Annual Reinforced Plastics/Composites Institute, February 7–10, 1978, Washington, D.C. (2 papers), 1. Paper No. 2B, “Titanate Coupling Agents in Filler Reinforced Thermoplastics,” S. J. Monte and G. Sugerman
3. Martorell Sole, C.Colores Hispania, S. A. 1980. Private Communication to S. J. Monte dated May 7