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:
Apr. 28, 2026
Filed:
Dec. 29, 2022
Industrial Technology Research Institute, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A biobased water repellent auxiliary agent and a method of manufacturing the same are provided. The biobased water repellent auxiliary agent includes a molecular complex composed of a polyurethane (PU) dendrimer and a water-based polyurethane dispersion (PUD). The PU dendrimer is formed by polymerizing a trifunctional-group-containing biobased material and an aliphatic linear isocyanate. The water-based PUD includes a monomer derived from the trifunctional-group-containing biobased material, a monomer derived from a cyclic isocyanate, and a monomer derived from a hydrophilic compound. The molecular complex is formed by copolymerizing the PU dendrimer, the trifunctional-group-containing biobased material, the cyclic isocyanate, and the hydrophilic compound.