Eastman Chemical Company

Grupo Petrotemex S.a. De C.v.

Bruce Roger Debruin

Larry Cates Windes

Thomas Lloyd Yount

Michael Paul Ekart

Richard Gill Bonner

Rodney Scott Armentrout

Kenrick Lyle Venett

David Allen Sliger

Mary Therese Jernigan

Frederick Leslie Colhoun

Steven Paul Bellner

Daniel Lee Martin

Robert R Stanley

Wesley Thomas Moyer

Kyle Lyn Collings

Alan Wayne White

Isolated quantities of plastic solids having greater than 70% by weight polyethylene terephthalate (PET) also include a) from 0.1% to 10% by weight polyvinyl chloride (PVC), and a moisture content of less than 4% by weight, or b) from 0.05% to 10% or 0.1% to 4% by weight halogens, or c) from 0.1% to 4% by weight polyvinyl chloride (PVC), and at least 0.1% by weight of solid materials that do not phase change below 270° C. and 1 atm. The quantities of these solid plastics are suitable for use as feedstocks to various chemical recycling processes.

Treated waste plastic materials

The invention is directed to polyester processes that utilizes a pipe reactor in the esterification, polycondensation, or both esterification and polycondensation processes. Pipe reactor processes of the present invention have a multitude of advantages over prior art processes including improved heat transfer, volume control, agitation and disengagement functions. The pipe reactor processes and apparatus of the present invention are built and operated at a much lower cost than conventional polyester processes.

Polyester process using a pipe reactor

Growing community of inventors

Gray, TN, United States of America

Bruce Roger Debruin