Liquid capsule having thermochromic and photochromic properties
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United States of America Patent
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Nov 15, 2022
Grant Date -
Feb 14, 2019
app pub date -
Aug 2, 2018
filing date -
Aug 9, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a capsule comprising a shell containing a transparent and thermally conducting liquid, particles having a thermochromic coating and particles having a photochromic coating, the thermochromic particles being bulkier than photochromic particles, the liquid being such that, within a first range of temperatures, its density is greater than the density of the thermochromic particles and than the density of the photochromic particles, and such that, within a second range of temperatures greater than those of the first range, the density of the photochromic particles is less than the density of the liquid, which is itself less than the density of the thermochromic particles.
First Claim
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G04B:MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL ....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- G03C:PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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