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:
Jul. 12, 2016
Filed:
Jan. 30, 2012
Dong-jin Kim, Seoul, KR;
Won-jae Yoon, Seoul, KR;
Jong-ryang Kim, Suwon-si, KR;
Yoo-jin Lee, Seoul, KR;
Sin-young Hwang, Seoul, KR;
Dong-Jin Kim, Seoul, KR;
Won-Jae Yoon, Seoul, KR;
Jong-Ryang Kim, Suwon-si, KR;
Yoo-Jin Lee, Seoul, KR;
Sin-Young Hwang, Seoul, KR;
SK CHEMICALS CO., LTD., Seongnam-Si, Gyeonggi-Do, KR;
Abstract
Disclosed are a copolymeric polyester resin composition having outstanding color stability (transparency) and a production method therefor. The copolymeric polyester resin composition comprises: between 95 and 99.99 percent by weight of a copolymeric polyester resin having a structure which is obtained by the copolymerization of a dicarboxylic acid component and a diol component that comprises isosorbide, and in which there is repetition of a dicarboxylic acid moiety derived from the dicarboxylic acid component and a diol moiety derived from the diol component; and between 0.01 and 5 percent by weight of an antioxidant selected from the group consisting of hindered phenol-based antioxidants, phosphite-based antioxidants, thioether-based antioxidants and mixtures thereof.