Ronald M. Emanuel, Jr.

 Scientist, Technology Leader - Adhesives, Coatings & Sealants

 Lanxess Urethane Systems

Personal Biography

Ronald M. Emanuel, Jr. has been a chemist with Lanxess Urethane Systems since May of 1998. During his 20-year career, Mr. Emanuel pioneered low free monomer methylene diphenyl diisocyanate (MDI) technology development and production scale-up globally. This effort has allowed Laxness to establish the best production and scale capability to achieve below 0.10 percent of free isocyanate monomer and to establish a position to develop low free monomer versions of many isocyanate types. Ron’s current research focus is development of low free monomer prepolymer formulations for adhesives, coatings and sealants.

Presentation Abstract

Unique high performance low-monomer urethane prepolymers for adhesives and sealants

Unique low-monomer urethane prepolymers have been developed for use in adhesives and sealants. This technology creates prepolymers with less than 0.1% free methylene diphenyl diisocyanate (MDI) and other isocyanates, providing unsurpassed industrial hygiene standards, excellent performance, and improved processing.

Low-monomer urethane prepolymers minimise exposure to free isocyanate, a subject of increasing regulatory focus. Benefits of low-monomer urethanes include improved industrial hygiene, enabling adhesive and sealant formulations to meet increasingly strict levels of free monomer, minimising EH&S workload related to isocyanates, and eliminating any toxic classification (H351-free).

Synthesising low-monomer urethanes enhances phase segregation between hard and soft segment domains, leading to controlled morphology. Low-monomer urethane technology enables design of prepolymers for specific applications with a tailored balance between viscosity and NCO content for desired property and processing advantages. Recent case studies for adhesives and sealants will be discussed. Low-monomer urethane prepolymers are available across isocyanate chemistries, including MDI, isophorone diisocyante (IPDI), hexamethylene diisocyanate (HDI), toluene diisocyante (TDI), and 1,4 phenylene diisocyanate (pPDI), and with a range of polyols, including polyethers, polyesters, polycaprolactones, and polycarbonates.

FEICA Conference