Patent ID: 6099659
Filing Date: 2000-08-08
Classification: B29B,B29K,G01N,Y02W,Y10S

Abstract:
A process for continuously discriminating between a contaminated plastic material containing trapped volatile contaminants and plastic material which contains an acceptable threshold of contaminants in a recycling plant wherein said plant is reprocessing recycled plastic material comprising the following steps:a. supplying a continuous source of plastic material wherein said plastic material contains trapped volatile contaminants and feeding a sample of said continuous source of plastic material to detector apparatus wherein said detector apparatus comprises a chamber which chamber regulates the temperature of said plastic material in said chamber; andb. regulating the temperature of said plastic material in said chamber so that said trapped volatile contaminants in said plastic material are removed from said plastic material and detecting said removed volatile contaminants with said detector apparatus to determine the presence of contaminants in said plastic material wherein said detector apparatus communicates said detected levels of contaminants to a tracking database wherein said tracking database is configured in communication with said detector and further controls said recycling plant's reprocessing of recycled material such that said tracking database can signal, divert and/or isolate said contaminated recycled material from plastic material which contains said acceptable threshold of contaminants, when said recycled material exceeds a preselected contamination level.