The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 11, 2002

Filed:

Dec. 18, 2000
Applicant:
Inventors:

Hiroaki Usui, Tokyo, JP;

Jae-Hong Kim, Seoul, KR;

Dong-Hoon Choi, Seoul, KR;

Yoshiharu Kimura, Kyoto, JP;

Kenya Motoyoshi, Tokyo, JP;

Assignee:

Victech Co., Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 1/104 ;
U.S. Cl.
CPC ...
C08J 1/104 ;
Abstract

A volume reducing agent for processing expanded polystyrene (EPS), containing 65-97 wt % of a first plasticizer having a solubility parameter less than the solubility parameter of the polystyrene; and 3-35 wt % of a second plasticizer having a solubility parameter higher than the solubility parameter of the polystyrene. The volume reducing agent is in a liquid state, has a Ferdor solubility parameter close to that of the polystyrene to be processed in the mixed state and transfers the resulting materials having reduced volume into gel-type products to be floated and easily separated to yield a high quality output of recycled expanded polystyrene (FPS).


Find Patent Forward Citations

Usui, Hiroaki. (2002). Volume reducing agents for expanded polystyrene, methods and apparatus for processing expanded polystyrene using the same (U.S. Patent No. 6403661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6403661

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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