Invention Grant
- Patent Title: Low-reflectivity black film and method of manufacturing laminated body
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Application No.: US16770144Application Date: 2018-12-06
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Publication No.: US11753491B2Publication Date: 2023-09-12
- Inventor: Naohiro Tanaka
- Applicant: TOYO INK SC HOLDINGS CO., LTD. , TOYOCOLOR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOYO INK SC HOLDINGS CO., LTD.,TOYOCOLOR CO., LTD
- Current Assignee: TOYO INK SC HOLDINGS CO., LTD.,TOYOCOLOR CO., LTD
- Current Assignee Address: JP Tokyo; JP Tokyo
- Agency: Maier & Maier, PLLC
- Priority: JP 17235563 2017.12.07 JP 18080718 2018.04.19
- International Application: PCT/JP2018/044865 2018.12.06
- International Announcement: WO2019/111990A 2019.06.13
- Date entered country: 2020-06-05
- Main IPC: C08F220/18
- IPC: C08F220/18 ; B05D5/06 ; C08J5/18 ; C08K3/04 ; G02B1/111

Abstract:
A low-reflectivity black film according includes porous black pigment having a porosity of 50% or larger and a binder component at a volume ratio of 50:50-100:0, in which, with regard to surface roughness parameters Rt and Ra, Rt is 0.15-5 μm and Ra is 0.01-0.5 μm, an L* value is equal to or smaller than 20, and in a range of 400-700 nm, the maximum value of regular reflectivity is equal to or smaller than 0.8%, the maximum value of scattering reflectivity is equal to or smaller than 2%, and the maximum value of light transmittance is equal to or smaller than 5%.
Information query
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