APPARATUS FOR MIXING AND INJECTION MOLDING THERMOSETTING POLYURETHANE

摘要

The invention is an apparatus for mixing and injection molding thermosetting polyurethane. The invention involves using a premixer (39) comprising of a series of specially designed premixing chambers, one or more static, rather than dynamic mixers, (80, 84), and a specially designed dual-path mixer (40). After the material is mixed it is pumped into an injector (100), and then deposited into a mold. This entire process is accomplished in an airtight environment. The mold into which the material is pumped is attached to a vacuum that decreases the chances of any air bubbles being trapped inside the mold.