	US 11,939,482 B2
	Highly electrically conductive silver ink composition and wiring obtained using same
Saori Yamaguchi, Sakura (JP); Yasuhiro Sente, Sakura (JP); and Ken-ichi Yatsugi, Sakura (JP)
Assigned to DIC CORPORATION, Tokyo (JP)
Appl. No. 17/058,233
Filed by DIC Corporation, Tokyo (JP)
PCT Filed Aug. 30, 2018, PCT No. PCT/JP2018/032099 § 371(c)(1), (2) Date Nov. 24, 2020, PCT Pub. No. WO2019/239610, PCT Pub. Date Dec. 19, 2019.
Claims priority of application No. 2018-111957 (JP), filed on Jun. 12, 2018.
Prior Publication US 2021/0155820 A1, May 27, 2021
Int. Cl. C09D 11/52 (2014.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/103 (2014.01); C09D 11/14 (2006.01); H05K 1/09 (2006.01); H05K 3/12 (2006.01); H05K 3/22 (2006.01)

CPC C09D 11/52 (2013.01) [C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/103 (2013.01); C09D 11/14 (2013.01); H05K 1/092 (2013.01); H05K 3/1216 (2013.01); H05K 3/227 (2013.01)]

5 Claims

1. A conductive ink composition for screen printing, comprising a conductive metal particle (A) having an oleic acid surfactant, a non-chlorine-based resin composition (B), and an organic solvent (C), wherein

the conductive metal particle (A) has an amount of free oleic acid of 100 to 350 ppm and is contained in an amount of 45 to 70% by weight with respect to the total ink composition,

the non-chlorine-based resin composition (B) has a number average molecular weight of 50,000 or more and is contained in an amount of 5 to 15% by weight with respect to the total ink composition,

the organic solvent (C) has a flash point of 75 to 110° C. and is contained in an amount of 25 to 50% by weight with respect to the total ink composition, and

the ink composition has an ink viscosity of 10 to 25 Pa·s (23° C.) at a shear rate of 100 s⁻¹.