US 12,168,721 B2
Coating composition, method for manufacturing same, and separation membrane comprising same
Ki Woong Lee, Cheongju-si (KR); Dae Yong Yeon, Daejeon (KR); Woo Jin Kim, Seoul (KR); Kwang Ho Choi, Cheongju-si (KR); and Jae Yong Choi, Dangjin-si (KR)
Assigned to W-SCOPE KOREA CO., LTD., Chungju-si (KR); and W-SCOPE CHUNGJU PLANT CO., LTD., Chungju-si (KR)
Appl. No. 17/262,108
Filed by W-SCOPE KOREA CO.,LTD., Cheongju-si (KR); and W-SCOPE CHUNGJU PLANT CO., LTD., Chungju-si (KR)
PCT Filed Nov. 1, 2018, PCT No. PCT/KR2018/013153
§ 371(c)(1), (2) Date Jan. 21, 2021,
PCT Pub. No. WO2020/022562, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 10-2018-0086078 (KR), filed on Jul. 24, 2018.
Prior Publication US 2021/0292592 A1, Sep. 23, 2021
Int. Cl. C08J 3/12 (2006.01); C08L 89/00 (2006.01); C09D 133/02 (2006.01); H01M 10/0525 (2010.01); H01M 50/403 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01)
CPC C08J 3/126 (2013.01) [C08L 89/005 (2013.01); C09D 133/02 (2013.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/443 (2021.01); H01M 50/449 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01)] 7 Claims
OG exemplary drawing
 
1. A coating composition comprising a composite in which a dissociated natural polymer compound is bound to at least a portion of a surface of an acrylic polymer particle,
wherein
the coating composition is an aqueous coating slurry,
the coating composition is water-soluble,
the pH of the coating composition is in a range of 4 to 5,
the concentration of the dissociated natural polymer compound is in a range of 1% to 10% by weight,
the dissociated natural polymer compound is one selected from the group consisting of collagen, casein, albumin, gelatin, and a combination of two or more thereof,
the composite is at least one of a plurality of composites in the aqueous coating slurry, and the plurality of composites are composite particles, and
D10, D50 and D90 of the composite particles in the aqueous coating slurry are constant across said concentration range of the dissociated natural polymer compound, where Dx is a particle size value corresponding to x % of the composite particles in the aqueous coating slurry.