Separation of polymers

U.S. Patent Number: 5385950

Abstract: A process for the separation of different polymers, by subjecting a molten polymer mixture containing two or more polymers to a gravity field greater than the Earth's gravity field. The process is useful in the recovery of scrap or waste polymers.

Inventors: Mahler; Walter (Wilmington, DE)

Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE)

Application Number: 08/068,463

Issued: 1995-01-31

Expired: 2007-01-31

Classes: 521/45.5 ; 521/41; 521/46; 521/47

Field of search: 521/45.5,41,47 528/502 526/46

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