US 12,378,423 B2
Paint composition
Masato Nakamizu, Kanagawa (JP)
Assigned to KANSAI PAINT CO., LTD., Hyogo (JP)
Appl. No. 17/598,043
Filed by KANSAI PAINT CO., LTD., Hyogo (JP)
PCT Filed Dec. 18, 2019, PCT No. PCT/JP2019/049663
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/194928, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-057647 (JP), filed on Mar. 26, 2019.
Prior Publication US 2022/0177716 A1, Jun. 9, 2022
Int. Cl. C09D 7/44 (2018.01); C09D 7/63 (2018.01); C09D 7/65 (2018.01); C09D 133/06 (2006.01); C09D 133/14 (2006.01)
CPC C09D 7/44 (2018.01) [C09D 7/63 (2018.01); C09D 7/65 (2018.01); C09D 133/066 (2013.01); C09D 133/14 (2013.01)] 4 Claims
 
1. A paint composition comprising
(A) a binder component,
(B) a first rheology control agent, and
(C) a second rheology control agent,
wherein
the first rheology control agent (B) is a non-aqueous dispersion resin (b),
the second rheology control agent (C) contains a reaction product of
(c1) a polyisocyanate compound,
(c2) a primary monoamine having a number average molecular weight of 300 or less, and
(c3) a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000, and the proportion of the polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (c3) is more than 18 mass % and 28 mass % or less based on the total amount of the components (c1) to (c3), and
wherein the paint composition provides a sag resistance of 53 μm to 57 μm, the sag resistance being evaluated by measuring a film thickness on a test panel where 3 mm sagging of the paint composition was observed from the lower end of a punch hole.