Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Patent
1996-12-23
1998-07-14
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
528272, 528302, 528308, 5283086, 528481, 528493, 528495, 528503, 8141, C08J 1104
Patent
active
057805202
ABSTRACT:
A novel technique to treat post-consumer polyester for reuse in food-contact applications is described. The process comprises contacting contaminated post consumer polyester flake with at least one extraction solvent which is soluble in said contaminated flake at a temperature sufficient to allow rapid diffusion of contaminants from said polyester flake; and removing said extraction solvent containing said contaminants from said polyester flake.
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Points to Consider for the Use of Recycled Plastics in Food Packaging: Chemistry Considerations, U.S. Food & Drug Administration, May, 1992.
Ekart Michael P.
Heise William H.
Reeves Billy J.
Shadden Johnny W.
Stipe Candace M.
Acquah Samuel A.
Eastman Chemical Company
Gwinnell Harry J.
Harding Karen A.
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