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Thermochromic coatings, films and materials for thermal management
US2016297975A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016297975-A1 |
| Application number | US-201615094135-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 8, 2016 |
| Priority date | Apr 8, 2015 |
| Publication date | Oct 13, 2016 |
| Grant date | — |
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- Title
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Abstract
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Thermochromic coatings, films and materials that aid in a) reducing surface temperature of a structure or composite material when environmental temperature is relatively high and b) increasing surface temperature under relatively low environmental temperature. Surface temperature modulation is achieved using a synergistic combination of thermochromic materials and light scattering components.
First claim
Opening claim text (preview).
What is claimed is: 1 . A thermochromic material-containing composition, comprising: a thermochromic material comprising a leuco dye, a developer and a solvent encapsulated in a shell; a light scattering component; and a matrix material, wherein the thermochromic material has a transition temperature that ranges from about 25° C. to about 35° C. 2 . The composition according to claim 1 , wherein the thermochromic material is present in an amount from 0.1 part to about 6 parts based on 100 total parts by weight of the composition. 3 . The composition according to claim 2 , wherein the light scattering component is present in an amount from about 1 to about 10 parts based on 100 total parts by weight of the composition. 4 . The composition according to claim 3 , wherein light scattering component includes one or more of titanium dioxide, ceramic particles, metal oxide particles and glass particles. 5 . The composition according to claim 1 , wherein the matrix material comprises one or more of a polymer and a binder. 6 . The composition according to claim 5 , wherein the matrix material comprises the polymer, wherein the polymer is one or more of polyvinylchloride, polyurethane, acrylic, polyolefin, polycarbonate, polyacrylonitrile, polyvinylpyrrolidone, polystyrene, and polyvinyl alcohol. 7 . The composition according to claim 5 , wherein the matrix material comprises the binder, and wherein the binder is an asphalt binder. 8 . The composition according to claim 1 , wherein the transition temperature is from about 29° C. to about 33° C. 9 . The composition according to claim 1 , wherein the thermochromic material is microencapsulated. 10 . The composition according to claim 9 , wherein the encapsulation comprises trioctanoin. 11 . A thermochromic coating, comprising: a thermochromic material comprising a leuco dye, developer and solvent encapsulated in a shell; a light scattering component; and a matrix material. 12 . The composition according to claim 11 , wherein the thermochromic material is present in an amount from 0.1 part to about 6 parts based on 100 total parts by weight of the composition. 13 . The composition according to claim 12 , wherein the light scattering component is present in an amount from about 1 to about 10 parts based on 100 total parts by weight of the composition. 14 . The composition according to claim 13 , wherein light scattering component includes one or more of titanium dioxide, ceramic particles, metal oxide particles and glass particles. 15 . The composition according to claim 11 , wherein the matrix material comprises one or more of a polymer and a binder. 16 . The composition according to claim 15 , wherein the matrix material comprises the polymer, wherein the polymer is one or more of polyvinylchloride, polyurethane, acrylic, polyolefin, polycarbonate, polyacrylonitrile, polyvinylpyrrolidone, polystyrene, and polyvinyl alcohol. 17 . The composition according to claim 15 , wherein the matrix material comprises the binder, and wherein the binder is an asphalt binder. 18 . The composition according to claim 11 , wherein the transition temperature is from about 29° C. to about 33° C. 19 . The composition according to claim 11 , wherein the thermochromic material is microencapsulated. 20 . The composition according to claim 19 , wherein the encapsulation comprises trioctanoin.
Assignees
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Classifications
- C09D5/26Primary
Thermosensitive paints · CPC title
Titanium dioxide · CPC title
Glass · CPC title
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Frequently asked questions
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- What does patent US2016297975A1 cover?
- Thermochromic coatings, films and materials that aid in a) reducing surface temperature of a structure or composite material when environmental temperature is relatively high and b) increasing surface temperature under relatively low environmental temperature. Surface temperature modulation is achieved using a synergistic combination of thermochromic materials and light scattering components.
- Who is the assignee on this patent?
- Univ Case Western Reserve
- What technology area does this patent fall under?
- Primary CPC classification C09D5/26. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 13 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).