US 11,999,873 B2
Dispersion comprising colloidal silica particles and zinc cyanurate particles
Daisuke Shimizu, Sodegaura (JP); Satoru Murakami, Sodegaura (JP); Yoshiyuki Kashima, Sodegaura (JP); and Isao Oota, Sodegaura (JP)
Assigned to NISSAN CHEMICAL CORPORATION, Tokyo (JP)
Appl. No. 17/040,912
Filed by NISSAN CHEMICAL CORPORATION, Tokyo (JP)
PCT Filed Mar. 19, 2019, PCT No. PCT/JP2019/011550
§ 371(c)(1), (2) Date Sep. 23, 2020,
PCT Pub. No. WO2019/181966, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 2018-056709 (JP), filed on Mar. 23, 2018.
Prior Publication US 2021/0009820 A1, Jan. 14, 2021
Int. Cl. C09D 7/62 (2018.01); B23C 3/00 (2006.01); C08K 3/36 (2006.01); C08K 5/3492 (2006.01); C09D 5/02 (2006.01); C09D 5/08 (2006.01); C09D 123/08 (2006.01); C09D 125/14 (2006.01); C09D 163/00 (2006.01)
CPC C09D 7/62 (2018.01) [B23C 3/00 (2013.01); C08K 3/36 (2013.01); C08K 5/34924 (2013.01); C09D 5/02 (2013.01); C09D 5/08 (2013.01); C09D 123/0853 (2013.01); C09D 125/14 (2013.01); C09D 163/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A dispersion in which dispersoid particles comprising colloidal silica particles and zinc cyanurate particles are dispersed in a liquid medium,
wherein the colloidal silica particles have an average particle diameter of 5 to 500 nm, and the dispersion contains 0.1 to 40% by mass of the colloidal silica particles in terms of SiO2 concentration,
wherein primary particles of the zinc cyanurate particles have a major axis length of 50 to 1000 nm and a minor axis length of 10 to 300 nm as observed with a transmission electron microscope, and have a ratio of the major axis length to the minor axis length of 2 to 25, and the dispersion contains 0.1 to 50% by mass of the zinc cyanurate particles in terms of solids content, and
wherein the dispersoid particles comprising the colloidal silica particles and the zinc cyanurate particles have an average particle diameter of 80 to 2000 nm based on a laser diffraction method, and the dispersion contains 0.2 to 50.1% by mass of the colloidal silica particles and the zinc cyanurate particles in terms of total solids content of both particles.