Heat radiation reflective film and method for producing the same, and heat radiation reflector
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-005/08
G02B-005/28
출원번호
US-0004502
(2012-03-12)
등록번호
US-9366788
(2016-06-14)
우선권정보
JP-2011-060736 (2011-03-18)
국제출원번호
PCT/JP2012/056322
(2012-03-12)
§371/§102 date
20130911
(20130911)
국제공개번호
WO2012/128109
(2012-09-27)
발명자
/ 주소
Nakajima, Akihisa
출원인 / 주소
KONICA MINOLTA, INC.
대리인 / 주소
Lucas & Mercanti, LLP
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
To provide a heat radiation reflective film which has a high heat radiation reflectance and good adherence property (peel resistance), which can have a large surface area, and which de-emphasizes certain visible reflected lights; and a method for producing the film. And to provide a heat radiation r
To provide a heat radiation reflective film which has a high heat radiation reflectance and good adherence property (peel resistance), which can have a large surface area, and which de-emphasizes certain visible reflected lights; and a method for producing the film. And to provide a heat radiation reflector which includes the heat radiation reflective film as described above. A heat radiation reflective film comprising: at least one heat radiation reflective unit on one surface of a support, the unit comprising: at least 6 laminated layers, each layer having a different refractive index from an adjacent layer, wherein a first unit as one of the heat radiation reflective units comprises the layer closest to the support having a thickness which is 3 times or more of the thickness of the layer farthest from the support.
대표청구항▼
1. A heat radiation reflective film comprising: at least one heat radiation reflective unit on one surface of a support, the unit comprising:at least 6 laminated layers, each layer having a different refractive index from an adjacent layer,wherein a first unit as one of the heat radiation reflective
1. A heat radiation reflective film comprising: at least one heat radiation reflective unit on one surface of a support, the unit comprising:at least 6 laminated layers, each layer having a different refractive index from an adjacent layer,wherein a first unit as one of the heat radiation reflective units comprises the layer closest to the support having a thickness which is 3 times or more of the thickness of the layer farthest from the support,the layers which constitute the first unit adjoin each other via a blended region having a thickness 0.4-0.8 times the thickness of the layer farthest from the support, andthe heat radiation reflective unit includes metal oxide particles and a water-soluble polymer in at least one layer. 2. The heat radiation reflective film of claim 1, wherein the first unit comprises a layer which is adjacent to the layer closest to the support and which has a thickness which is 3 times or more of the thickness of the layer farthest from the support. 3. The heat radiation reflective film of claim 1, wherein the first unit adjoins two adjacent heat radiation reflective units, via a blended region having a thickness 0.1-0.4 times the thickness of the layer farthest from the support. 4. A method for producing the heat radiation reflective film of claim 1, the method comprising a step of forming layers which constitute the heat radiation reflective film by use of an aqueous-based coating solution. 5. A heat radiation reflector comprising the heat radiation reflective film of claim 1. 6. The heat radiation reflective film of claim 1, wherein the layer closest to the support has a thickness which is 3.5 times or more of the thickness of the layer farthest from the support. 7. The heat radiation reflective film of claim 1, wherein the layer closest to the support has a thickness of 350-1000 nm. 8. The heat radiation reflective film of claim 2, wherein the layer which is adjacent to the layer closest to the support has a thickness of 60-500 nm. 9. The heat radiation reflective film of claim 1, wherein the heat radiation reflective unit has a high refractive index layer and a low refractive index layer, both the layer closest to the support and the layer farthest from the support being a low refractive index layer. 10. The heat radiation reflective film of claim 1, wherein the heat radiation reflective unit is disposed on one side of the support, and a second heat radiation reflective unit which is the same as or different from the first unit is disposed on the opposite side of the support. 11. The heat radiation reflective film of claim 10, wherein the heat radiation reflective unit has a high refractive index layer and a low refractive index layer, the layer closest to the support being a low refractive index layer. 12. The heat radiation reflective film of claim 11, wherein the layer closest to the support has a thickness of 350-1000 nm. 13. The heat radiation reflective film of claim 2, wherein the layers which constitutes the first unit adjoin each other via a blended region having a thickness 0.4-0.8 times the thickness of the layer farthest from the support. 14. A heat radiation reflector of claim 5, wherein the heat radiation reflective film is attached on a glass substrate. 15. The heat radiation reflective film of claim 1, wherein the first unit has a high refractive index layer and a low refractive index layer, and the components of the high refractive index layer and the low refractive index layer are blended in the blended region. 16. The heat radiation reflective film of claim 1, wherein the first unit has a high refractive index layer and a low refractive index layer, and the interface of the high refractive index layer and the low refractive index layer has asperities in the blended region.
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