US 12,258,488 B2
Film-forming treatment liquid
Taro Konuma, Osaka (JP); Teruhiko Kagehisa, Osaka (JP); Masafumi Nozaki, Osaka (JP); Katsumasa Shimahashi, Osaka (JP); and Takashi Kato, Osaka (JP)
Assigned to OKUNO CHEMICAL INDUSTRIES CO., LTD., Osaka (JP)
Appl. No. 16/608,001
Filed by OKUNO CHEMICAL INDUSTRIES CO., LTD., Osaka (JP)
PCT Filed May 28, 2018, PCT No. PCT/JP2018/020267
§ 371(c)(1), (2) Date Oct. 24, 2019,
PCT Pub. No. WO2019/017073, PCT Pub. Date Jan. 24, 2019.
Claims priority of application No. 2017-139966 (JP), filed on Jul. 19, 2017.
Prior Publication US 2021/0102076 A1, Apr. 8, 2021
Int. Cl. C09D 5/08 (2006.01); C09D 7/63 (2018.01); C09D 183/04 (2006.01); C23C 22/48 (2006.01); C23C 22/68 (2006.01); C23C 22/78 (2006.01); C23F 1/14 (2006.01)
CPC C09D 5/08 (2013.01) [C09D 7/63 (2018.01); C09D 183/04 (2013.01); C23C 22/48 (2013.01); C23C 22/68 (2013.01); C23C 22/78 (2013.01); C23F 1/14 (2013.01)] 8 Claims
 
1. A film formation method comprising
step D of applying a film-forming treatment liquid to a metal material having a silicic acid conversion treatment film, and
step C of applying a silicic acid conversion treatment liquid to a metal material before step D to obtain the metal material having a silicic acid conversion treatment film,
(a) the film-forming treatment liquid comprising:
a silicon compound comprising a resin, wherein the resin comprises at least one member selected from the group consisting of alkoxysilyl, alkoxysilylene, and a siloxane bond, and wherein the resin has a weight average molecular weight of 11000 to 200000;
a non-silicon resin, wherein the non-silicon resin is selected from the group consisting of epoxy resins, urethane resins, polyester resins and melamine resins;
an organometallic compound; and water, and
(b) the silicic acid conversion treatment liquid comprising at least one silicic acid compound selected from the group consisting of lithium silicate, sodium silicate, potassium silicate, ammonium silicate, choline silicate, calcium silicate, magnesium silicate, and hexafluorosilicic acid,
(c) the silicate ion concentration in the silicic acid conversion treatment liquid is 10 g/L to 700 g/L.