US 12,139,078 B2
Exterior component for vehicle
Kosuke Katayama, Kariya (JP); and Yuta Kobayashi, Hekinan (JP)
Assigned to AISIN CORPORATION, Kariya (JP); and AISIN SINEI CO., LTD, Hekinan (JP)
Filed by AISIN CORPORATION, Kariya (JP); and AISIN SINEI CO., LTD, Hekinan (JP)
Filed on Jul. 2, 2023, as Appl. No. 18/346,239.
Claims priority of application No. 2022-107536 (JP), filed on Jul. 4, 2022.
Prior Publication US 2024/0001865 A1, Jan. 4, 2024
Int. Cl. B60R 13/00 (2006.01)
CPC B60R 13/005 (2013.01) 10 Claims
OG exemplary drawing
 
1. An exterior component of a vehicle, comprising:
a substrate, the substrate including polycarbonate and polybutylene terephthalate; and
a multilayer coating film covering a surface of the substrate, wherein
the multilayer coating film includes
a first coating film closest to the substrate, the first coating film including an acrylic resin-based material,
a second coating film that is in contact with the first coating film and covers a part of the surface of the first coating film, the second coating film including a UV-curable acrylic resin-based material, and
a third coating film that is transparent and covers the first coating film and the second coating film so as to be in contact with the second coating film and a portion of the first coating film that is not covered with the second coating film, and
the third coating film has a refractive index of 1.5210 or more, and includes an acrylic resin-based material.