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:
Nov. 25, 2025
Filed:
Mar. 22, 2022
Applicant:
Postech Research and Business Development Foundation, Pohang-si, KR;
Inventors:
Assignee:
POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 120/56 (2006.01); C08F 2/50 (2006.01); F03G 7/00 (2006.01); F03G 7/06 (2006.01);
U.S. Cl.
CPC ...
C08F 120/56 (2013.01); C08F 2/50 (2013.01); F03G 7/0612 (2021.08);
Abstract
The invention relates to a water responsive soft actuator using water responsive hydrogel whose volume hardly changes, and a method for driving the soft actuator. The water responsive soft actuator according to the invention includes polyisopropylacrylamide, and the polyisopropylacrylamide has an N-isopropylacrylamide monomer and water in a weight ratio of 87:13 to 95:5, wherein the water responsive soft actuator is driven by water absorption of the polyisopropylacrylamide.