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:
Sep. 18, 2007
Filed:
Sep. 16, 2005
Sang-woo Kim, Seoul, KR;
Kyung-yol Yon, Seongnam-si, KR;
Young-ho Lee, Pyeongtaek-si, KR;
Seong-geun OH, Seoul, KR;
Sang-woo Kim, Seoul, KR;
Kyung-yol Yon, Seongnam-si, KR;
Young-ho Lee, Pyeongtaek-si, KR;
Seong-geun Oh, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A preparation method of a polyester resin includes: under predetermined depolymerization conditions, mixing a polyester resin, a resin dissolvent and a polycondensation catalyst to depolymerize the polyester resin and form a first reaction mixture; adding a first monomer to the first reaction mixture to form a second reaction mixture; under predetermined polymerization conditions, adding a second monomer to the second reaction mixture to polymerize the depolymerized polyester resin and form a third reaction mixture; and adding a neutralizing agent to neutralize the polymerized reaction product of the third reaction mixture.