Abstract
Polyurea RIM, because of its production speed, internal release characteristics, high temperature dimensional stability, and increased resis tance to water absorption is finally coming to the forefront as a better route to producing automotive body panels and fascia. One of the barriers that held back the rapid replacement of polyurethane-urea RIM by this new technology has been the increased reaction rate typically exhibited by polyurea RIM. The throughputs of existing RIM equipment were not high enough to produce some of the larger fascia and body panel parts. To address this need of some molders to process polyurea RIM in lower throughput RIM machines, we have investigated various modifications of our polyetheramines. Among the modifications investigated were the recently in troduced ketimine technology, N-alkyl substituted polyetheramines and polyether amines having aromatic amine termination. The processing charac teristics and physical properties of some of these slower polyether amines in polyurea RIM formulations will be discussed.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call