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:
Feb. 18, 2020
Filed:
May. 24, 2018
Far Eastern New Century Corporation, Taipei, TW;
Li-Ling Chang, Taipei, TW;
Chun-Chia Hsu, Taipei, TW;
Shu-Chuan Lee, Taipei, TW;
Roy Wu, Taipei, TW;
Far Eastern New Century Corporation, Taipei, TW;
Abstract
A heat-shrinkable polyester film is made from a polyester resin composition which includes an amorphous polyalkylene benzenedicarboxylate resin and a polyester elastomer resin. The polyester elastomer resin includes hard segments and soft segments, and is prepared by copolycondensation of an aromatic dicarboxylic acid and a diol component. The diol component includes a C2-C4 alkylene glycol for the hard segments and a polyethylene glycol with an average molecular weight not greater than 400 for the soft segments. The soft segments of the polyester elastomer resin are in an amount ranging from 1 part by weight to 2 parts by weight based on 100 parts by weight of the polyester resin composition.