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. 16, 2024
Filed:
Dec. 28, 2020
Industrial Technology Research Institute, Hsinchu, TW;
Feng-Jen Hsieh, Kaohsiung, TW;
Kuan-Yeh Huang, Chiayi, TW;
Yen-Ming Chen, New Taipei, TW;
Yu-Chieh Chou, Zhudong Township, TW;
Jyh-Jian Tai, Hsinchu, TW;
Liang-Che Chen, Fuxing Township, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Abstract
A method of manufacturing copolymer includes mixing and reacting a polyester, an aliphatic polyol or an aliphatic polyol oligomer, and a first catalyst in a first region of a screw to form a polyester polyol, and side-feeding a lactone or a lactam to a second region of the screw to copolymerize the lactone or a lactam and the polyester polyol to form a copolymer, wherein the first region and the second region are continuous connecting regions.