Patent Number: 6,169,121

Title: Method and apparatus for recycling styrene resin

Abstract: There is provided a processing method for effectively and promptly removing insoluble components contained in a solution of a styrene resin waste material to enable regeneration of high-quality regenerated styrene. To this end, a solution of the styrene resin waste material in an organic solvent is processed with, for example, a dehydrating agent, to remove insoluble components. The resulting clarified solution is degasified on heating in vacuum to remove the organic solvent for recycling the resulting mass as a regenerated styrene resin. The insoluble components include foreign matter, such as moisture, sludge and colorant agents. By this processing method, it becomes possible to recycle high-quality regenerated styrene.

Inventors: Noguchi; Tsutomu (Kanagawa, JP), Miyashita; Mayumi (Kanagawa, JP), Inagaki; Yasuhito (Kanagawa, JP), Watanabe; Haruo (Kanagawa, JP)

Assignee: Sony Corporation

International Classification: C08J 11/00 (20060101); C08J 11/08 (20060101); C08J 011/04 (); B01J 019/08 ()

Expiration Date: 01/02/2018