Patent ID: 8696957
Filing Date: 2014-04-15
Classification: A61F,B29C,B29L,C08J,Y02P

Abstract:
1. A method of microcellular injection molding, comprising: providing a polymer; providing a supercritical fluid to the polymer; processing the polymer and the supercritical fluid; adjusting at least one condition of processing the polymer and the supercritical fluid to control at least one of a weight of a plastic part produced and a surface characteristic of the plastic part produced from the method of microcellular injection molding; and injecting the processed polymer with the supercritical fluid therein into a mold; wherein injecting the processed polymer with the supercritical fluid therein into the mold causes a pressure drop of about 0.5 bar to about 2.5 bar that causes the supercritical fluid to nucleate in the processed polymer.