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:
Sep. 01, 2026
Filed:
Jul. 21, 2020
Wanhua Chemical Group Co., Ltd., Shandong, CN;
Lidong Sun, Shandong, CN;
Shuchang Sun, Shandong, CN;
Yonghua Shang, Shandong, CN;
Hao Hu, Shandong, CN;
Haotian Zhang, Shandong, CN;
Bin Shi, Shandong, CN;
Peimeng Shi, Shandong, CN;
Wei Liu, Shandong, CN;
WANHUA Chemical Group Co. LTD., Shandong, CN;
Abstract
Disclosed is an aliphatic polyisocyanate composition, wherein the molar ratio of an iminooxadiazinedione structure to an isocyanurate structure is 0.01-0.8:1, and the molar ratio of an iminooxadiazinedione structure in a polymer larger than three molecules to the iminooxadiazinedione structure in the composition is 0.2-0.8:1. Provided are a method for preparing the aliphatic polyisocyanate composition, and a coating composition. The aliphatic polyisocyanate composition has both a lower viscosity and a better crosslinking property. The composition can significantly reduce the usage amount of a solvent when used in a coating composition, is more environmentally friendly and also has a better paint film property. The preparation method has a simple process and mild conditions, is easy to operate and control, and is suitable for industrial scale production.