US 12,071,528 B2
Infrared transmissive product
Yoshinori Yoshizawa, Kiyosu (JP); Shintaro Okawa, Kiyosu (JP); Hiroaki Ando, Kiyosu (JP); and Seiichi Suzuki, Saitama (JP)
Assigned to TOYODA GOSEI CO., LTD., Aichi (JP)
Filed by TOYODA GOSEI CO., LTD., Kiyosu (JP)
Filed on Oct. 6, 2023, as Appl. No. 18/482,433.
Application 18/482,433 is a division of application No. 17/022,434, filed on Sep. 16, 2020, granted, now 11,814,495.
Claims priority of application No. 2019-178629 (JP), filed on Sep. 30, 2019.
Prior Publication US 2024/0043642 A1, Feb. 8, 2024
Int. Cl. C08J 7/06 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01)
CPC C08J 7/06 (2013.01) [C09D 7/61 (2018.01); C09D 7/68 (2018.01); C08J 2375/16 (2013.01)] 5 Claims
 
1. An infrared transmissive product, comprising:
a body configured to cover at least one of a transmitting unit and a receiving unit for infrared rays in an infrared sensor, wherein
the body includes
a base made of a transparent plastic having an infrared transmissivity, and
a coating film layer that is formed on a rear surface of the base in a transmission direction of infrared rays from the transmitting unit and has an infrared transmissivity,
the coating film layer is made of a material including a transparent plastic,
the coating film layer includes dispersed aggregates of particles of a pigment,
a primary particle size that is a particle size of each of the particles is less than or equal to 50 nm,
30 parts by mass or less of the aggregates is combined with 100 parts by mass of the transparent plastic of the coating film layer, and
the aggregates have a particle size in a range from 100 nm to 300 nm.