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. 27, 2024
Filed:
Apr. 12, 2021
Nanjing Tech University, Nanjing, CN;
Kai Guo, Nanjing, CN;
Zheng Fang, Nanjing, CN;
Junjie Tao, Nanjing, CN;
Wei He, Nanjing, CN;
Chengkou Liu, Nanjing, CN;
Jindian Duan, Nanjing, CN;
Xin Li, Nanjing, CN;
Ning Zhu, Nanjing, CN;
Jiangkai Qiu, Nanjing, CN;
Shiyu Guo, Nanjing, CN;
Pingkai Ouyang, Nanjing, CN;
NANJING TECH UNIVERSITY, Nanjing, CN;
Abstract
A preparation method of a flexible polyurethane foam includes the following steps of: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain a vegetable oil polyol for flexible polyurethane foam; and (3) using the vegetable oil polyol for flexible polyurethane foam obtained in the step (2) as the unique polyol, and subjecting the same and an isocyanate polyol to a foaming reaction to obtain the flexible polyurethane foam.