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. 08, 2014
Filed:
Jun. 12, 2012
Li-cheng Jheng, Kaohsiung, TW;
Jrjeng Ruan, Tainan, TW;
Ming-tsong Leu, Kaohsiung County, TW;
Kuo-chen Shih, Kaohsiung, TW;
Jyh-horng Wu, Kaohsiung, TW;
Cheng-hsing Fan, Taichung, TW;
Li-Cheng Jheng, Kaohsiung, TW;
Jrjeng Ruan, Tainan, TW;
Ming-Tsong Leu, Kaohsiung County, TW;
Kuo-Chen Shih, Kaohsiung, TW;
Jyh-Horng Wu, Kaohsiung, TW;
Cheng-Hsing Fan, Taichung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
Disclosed is a method for manufacturing a polyester film with low thermal expansion. 95 wt % to 55 wt % of crystalline polyester and 5 wt % to 45 wt % of amorphous polyester are mixed. The blend is then melt extruded to form a sheet. The sheet is then biaxially stretched to obtain a film. The biaxially stretched film is then treated with a heat-setting procedure.