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:
Mar. 05, 2024
Filed:
Apr. 12, 2021
Nanjing Tech University, Nanjing, CN;
Kai Guo, Nanjing, CN;
Zheng Fang, Nanjing, CN;
Chengkou Liu, Nanjing, CN;
Ning Zhu, Nanjing, CN;
Jingjing Meng, Nanjing, CN;
Junjie Tao, Nanjing, CN;
Xin Hu, Nanjing, CN;
Xin Li, Nanjing, CN;
Chuanhong Qiu, Nanjing, CN;
Pingkai Ouyang, Nanjing, CN;
NANJING TECH UNIVERSITY, Nanjing, CN;
Abstract
A method of a polyurethane foam includes the following steps of: (1) simultaneously pumping a mixed solution prepared from hydrogen peroxide, an organic acid, a catalyst and a stabilizer and a vegetable oil into a first microstructured reactor of a micro-channel modular reaction device for reacting to obtain a reaction solution containing epoxidized vegetable oil; (2) simultaneously pumping the reaction solution containing the epoxidized vegetable oil obtained from the step (1) and a compound of formula III into a second microstructured reactor of the micro-channel modular reaction device for reaction to obtain a vegetable oil polyol; and (3) reacting the vegetable oil polyol prepared from the step (2) with a foam stabilizer, a cyclohexylamine, an isocyanate and a foaming agent cyclopentane for foaming so as to prepare a rigid polyurethane foam.