Patent ID: 7968022
Filing Date: 2011-06-28
Classification: B29B,B29C,B29K,Y02W

Abstract:
1. A method for preparing a reformulated feed material having a rheology suitable for use in manufacturing a desired product comprising contaminated reclaimed mixed waste plastic: preprocessing a plurality of batches of contaminated, reclaimed mixed waste plastic, including injection molding representative sample material selected from each batch; analyzing operating parameters of equipment used to injection mold the sample material from each batch of preprocessed, reclaimed mixed waste plastic to characterize the batch by its rheology, from which the melt index is then determined; temporarily storing each batch of preprocessed, reclaimed mixed waste plastic; calculating a reformulated blend for the feed material using preprocessed, reclaimed mixed waste plastic from the plurality of batches to achieve a desired rheology; and blending the feed material according to the reformulated blend.