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.
Patent No.:
Date of Patent:
May. 24, 2011
Filed:
Dec. 05, 2007
Sung-don Hong, Daejeon Metropolitan, KR;
In-su Lee, Daejeon Metropolitan, KR;
Jong-ku Lee, Daejeon Metropolitan, KR;
Sung-ho Chun, Daejeon Metropolitan, KR;
Seung-young Park, Daejeon Metropolitan, KR;
Sung-cheol Yoon, Daejeon Metropolitan, KR;
Sung-Don Hong, Daejeon Metropolitan, KR;
In-Su Lee, Daejeon Metropolitan, KR;
Jong-Ku Lee, Daejeon Metropolitan, KR;
Sung-Ho Chun, Daejeon Metropolitan, KR;
Seung-Young Park, Daejeon Metropolitan, KR;
Sung-Cheol Yoon, Daejeon Metropolitan, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention provides an apparatus for recovering a polymer from polymer solution, and a method of recovering a polymer using the apparatus. The apparatus includes a polymer solution-storage tank for storing a polymer solution; a polymer solution feeding pump for pumping the polymer solution from the polymer solution storage tank; an antisolvent storage tank for storing an antisolvent; an antisolvent feeding pump for pumping the antisolvent from the antisolvent storage tank; a reaction chamber to which the polymer solution pumped by the polymer solution feeding pump and the antisolvent pumped by the antisolvent feeding pump are supplied; a high-speed mixer that is rotated in the reaction chamber at a speed range of 1000 to 30000 rpm, mixes the polymer solution with the antisolvent under a shearing force corresponding to a tip speed of 5 to 30 m/sec, and precipitates a polymer; and a precipitate storage tank for storing the precipitation mixture of the polymer and the solvent/antisolvent.