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Patent Searching and Data


Title:
METHOD FOR RECYCLING WASTE POLYSTYRENE PRODUCTS
Document Type and Number:
WIPO Patent Application WO/2021/230312
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for recycling waste polystyrene products that makes it possible to produce recycled polystyrene exhibiting the same strength as naphtha-derived polystyrene. The problem is solved by a method for recycling waste polystyrene products that includes a step for performing a pyrolysis treatment on waste polystyrene products to obtain recycled styrene monomers from the waste polystyrene. Preferably, the problem is solved by the method for recycling waste polystyrene products, wherein the waste polystyrene products include colorless polystyrene products and colored polystyrene products.

Inventors:
FUJIHIRA Mamoru (JP)
MINAKUCHI Ryo (JP)
Application Number:
PCT/JP2021/018165
Publication Date:
November 18, 2021
Filing Date:
May 13, 2021
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Assignee:
DIC CORPORATION (JP)
International Classes:
C08J11/12; B09B3/00
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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