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:
Oct. 16, 2018
Filed:
Oct. 12, 2016
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Sang Soo Jee, Hwaseong-si, KR;
Hyunjeong Jeon, Seoul, KR;
Sungwon Choi, Hwaseong-si, KR;
Byunghee Sohn, Yongin-si, KR;
Kyeong-sik Ju, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;
Abstract
A poly(imide-amide) copolymer includes: an imide structural unit which is a reaction product of a first diamine and a dianhydride, and an amide structural unit which is a reaction product of a second diamine and a diacyl halide, wherein each of the first diamine and the second diamine includes 2,2'-bis-trifluoromethyl-4,4′-biphenyldiamine, and at least one of the first diamine and the second diamine further includes a compound represented by Chemical Formula 1, wherein the dianhydride includes 3,3′,4,4′-biphenyltetracarboxylic dianhydride and 4,4′-hexafluoroisopropylidene diphthalic anhydride, wherein the diacyl halide includes terephthaloyl chloride (TPCl), and wherein an amount of the compound represented by Chemical Formula 1 is less than or equal to about 10 mole percent based on the total amount of the first diamine and the second diamine:NH-A-NH  Chemical Formula 1