Location History:
- Baton Rouge, LA (US) (1988)
- Coralville, IA (US) (1990)
Company Filing History:
Years Active: 1988-1990
Title: Innovations of James H Simon
Introduction
James H Simon is a notable inventor based in Coralville, IA (US). He has made significant contributions to the field of polyurethanes, holding a total of 2 patents. His work focuses on developing materials with superior performance characteristics, particularly in high-temperature applications.
Latest Patents
One of Simon's latest patents involves novel polyurethanes that exhibit superior high-temperature performance. These materials are prepared by reacting 3,5-di(methylthio)2,6-diaminotoluene with a toluenediisocyanate prepolymer. This prepolymer has a free --NCO content ranging from 0.1-20% by weight, with a preference for a toluenediisocyanate/polyether glycol prepolymer having a free --NCO content of 2-7% by weight. The resulting elastomers possess excellent dynamic properties, making them suitable for tire-forming materials. Another patent focuses on polyhydroxyalkane/aromatic diamine chain extenders. This invention blends 90-99 mol % of a polyhydroxyalkane with 2-6 carbons and 2-3 hydroxyl groups with 1-10 mol % of an aromatic diamine. This combination is useful as chain extenders for polyurethanes derived from diphenylmethanediisocyanate (MDI) prepolymers. The use of these blends overcomes the sensitivity to stoichiometry common in MDI prepolymer/polyhydroxyalkane systems, leading to cast elastomers with improved green strength and shorter demold times.
Career Highlights
James H Simon is currently associated with Ethyl Corporation, where he continues to innovate in the field of materials science. His work has had a significant impact on the development of advanced polyurethane materials.
Collaborations
Simon has collaborated with notable coworkers, including Christopher J Nalepa and J Kenneth Presswood. Their combined expertise has contributed to the advancement of their projects and innovations.
Conclusion
James H Simon's contributions to the field of polyurethanes demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material properties and their applications in various industries.