US 12,215,210 B2
Fluorine resin surface modification method, surface-modified fluorine resin production method, joining method, material having surface-modified fluorine resin, and joined body
Akihiro Shimamoto, Tokyo (JP)
Assigned to Ushio Denki Kabushiki Kaisha, Tokyo (JP)
Appl. No. 18/006,961
Filed by Ushio Denki Kabushiki Kaisha, Tokyo (JP)
PCT Filed Jul. 20, 2021, PCT No. PCT/JP2021/027171
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/024882, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-126099 (JP), filed on Jul. 27, 2020.
Prior Publication US 2023/0340220 A1, Oct. 26, 2023
Int. Cl. C08J 5/12 (2006.01); C08J 7/12 (2006.01); H05K 1/03 (2006.01)
CPC C08J 7/123 (2013.01) [C08J 5/124 (2013.01); H05K 1/034 (2013.01); C08J 2327/18 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fluorine resin surface modification method comprising the steps of:
irradiating an organic compound containing an oxygen atom with ultraviolet light having at least an intensity in a wavelength range of 205 nm or less, while the organic compound containing the oxygen atom is continuously supplied in gaseous form, to generate a radical; and
bringing the radical into contact with a surface of a fluorine resin to form a hydrophilized layer on the surface, wherein the fluorine resin, after the process of forming the hydrophilized layer on the surface, has the surface which has a peak intensity of carbon atoms and a peak intensity of oxygen atoms that are higher than a peak intensity of fluorine atoms in a photoelectron spectrum by XPS survey analysis.