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. 26, 2016
Filed:
Feb. 24, 2014
Tamkang University, New Taipei, TW;
Jing-Zhong Hwuang, New Taipei, TW;
Guei-Jia Chang, New Taipei, TW;
Jhong-Jheng Lin, New Taipei, TW;
Cheng-Wei Tsai, New Taipei, TW;
Shih-Chieh Wang, New Taipei, TW;
Po-Cheng Chen, New Taipei, TW;
Kan-Nan Chen, New Taipei, TW;
Jen-Taut Yeh, New Taipei, TW;
TAMKANG UNIVERSITY (A UNIVERSITY OF TAIWAN), Taipei Hsien, TW;
Abstract
A method of preparing polyurethane prepolymer does not require using a toxic isocyanate monomer (manufactured by harmful phosgene) as a raw material. Epoxy resin and carbon dioxide are used as major raw materials to form cyclic carbonates to be reacted with a functional group oligomer, and then amino groups in a hydrophilic (ether group) or hydrophobic (siloxane group) diamine polymer are used for performing a ring-opening polymerization, and the microwave irradiation is used in the ring-opening polymerization to efficiently synthesize the amino-terminated PU prepolymer, and then an acrylic group at an end is added to manufacture an UV cross-linking PU (UV-PU) oligomer which can be coated onto a fabric surface, and the fabric is dried by UV radiation for a surface treatment to form a washing-resisted long lasting hydrophilic or hydrophobic PU fabric.