The Evolution of High Performance Amine-Extended RIM Systems

Limitations of conventional glycol-extended RIM systems offer the opportunity for improvements in processing latitude. Several shortcomings have been eliminated with the introduction of amine-extended RIM materials. However, the initial amine systems required high throughput machinery to mold large, thin cross-section parts. An improved amine-extended RIM material has therefore been introduced, which maintains the processing advantages of the initial systems, but provides significantly better flowability.