Invention Grant
- Patent Title: Microencapsulated thermochromic materials and uses thereof
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Application No.: US16610107Application Date: 2018-05-03
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Publication No.: US11359137B2Publication Date: 2022-06-14
- Inventor: Manoj Kumar Ram , Elias K. Stefanakos
- Applicant: UNIVERSITY OF SOUTH FLORIDA
- Applicant Address: US FL Tampa
- Assignee: UNIVERSITY OF SOUTH FLORIDA
- Current Assignee: UNIVERSITY OF SOUTH FLORIDA
- Current Assignee Address: US FL Tampa
- Agency: Quarles & Brady LLP
- Agent Yakov Sidorin
- International Application: PCT/US2018/030886 WO 20180503
- International Announcement: WO2018/204640 WO 20181108
- Main IPC: B32B5/16
- IPC: B32B5/16 ; C09K9/02 ; B01J13/06 ; B01J19/12 ; C04B14/36 ; C04B16/00 ; C04B20/10 ; C04B26/02 ; C04B28/04

Abstract:
A variety of particles forming microencapsulated thermochromic materials are provided. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4, 4′-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.
Public/Granted literature
- US20200079993A1 MICROENCAPSULATED THERMOCHROMIC MATERIALS AND USES THEREOF Public/Granted day:2020-03-12
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