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. 26, 2024
Filed:
Apr. 12, 2021
Korea Institute of Science and Technology, Seoul, KR;
Jaewoo Kim, Jeollabuk-do, KR;
Jun Young Jo, Jeollabuk-do, KR;
Yong Chae Jung, Jeollabuk-do, KR;
Yong Seok Choi, Jeollabuk-do, KR;
Han Gyeol Jang, Jeollabuk-do, KR;
Sungmin Jung, Jeollabuk-do, KR;
Dong Woo Kim, Jeollabuk-do, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
The present disclosure relates to a spiropyran composite having improved mechano-sensitivity, a method for manufacturing the same, and a chromic article including the same. Particularly, the spiropyran composite is obtained by bonding spiropyran covalently to a polymer, an inorganic material or a mixture thereof to form spiropyran composite, and impregnating the spiropyran composite with a sensitivity-enhancing agent for a suitable time through a wet infiltration process to form non-polar environment at the inner part of the spiropyran composite, to cause pre-stretch and to increase a change in color or fluorescence in response to force, stress or strain, thereby providing significantly improved mechano-sensitivity. In addition, a wet filtration process is used and no expensive equipment is required to simplify the process. Further, the process can be performed rapidly within several minutes to reduce the processing time.