Patent ID: 9028943
Filing Date: 2015-05-12
Classification: B29B,C08J,C08L,Y02P,Y02W,Y10T

Abstract:
1. A process for reducing the content of polar organic residues in mixtures of plastics from durable goods comprising separating a feed stream into two or more mixtures of flakes, each mixture containing a primary plastic type, one or more additional plastic types, at least one organic substance absorbed into the one or more plastic types, and at least one or more non-melting contaminants, wherein a first mixture of flakes comprises a primary plastic type selected from the group consisting of HDPE, ABS, HIPS, or PP, wherein the first mixture of flakes comprises a contaminant selected from the group consisting of rubber, wood, thermosets, high melting thermoplastics, and combinations thereof; melt compounding the first mixture of flakes; and adding calcium oxide to first mixture of flakes prior to or during melt compounding to reduce the presence of volatile organics in the melt compounded first mixture.