	US 12,065,578 B2
	Two-component coating compositions
Burkhard Walther, Oldenburg (DE); Heimo Woelfle, Traunstein (DE); Li Yi Chen, Shanghai (CN); and Thierry Bubel, Neustadt a. d. Weinstraße (DE)
Assigned to SIKA TECHNOLOGY AG, Baar (CH)
Appl. No. 16/959,371
Filed by SIKA TECHNOLOGY AG, Baar (CH)
PCT Filed Jan. 7, 2019, PCT No. PCT/EP2019/050192 § 371(c)(1), (2) Date Jun. 30, 2020, PCT Pub. No. WO2019/137859, PCT Pub. Date Jul. 18, 2019.
Claims priority of application No. 18151167 (EP), filed on Jan. 11, 2018.
Prior Publication US 2021/0062035 A1, Mar. 4, 2021
Int. Cl. C09D 175/08 (2006.01); C08G 18/18 (2006.01); C08G 18/24 (2006.01); C08G 18/30 (2006.01); C08G 18/32 (2006.01); C08G 18/48 (2006.01); C08G 18/66 (2006.01); C08G 18/73 (2006.01); C08G 18/76 (2006.01); C08K 3/22 (2006.01); C09D 7/61 (2018.01)

CPC C09D 175/08 (2013.01) [C08G 18/1808 (2013.01); C08G 18/246 (2013.01); C08G 18/3206 (2013.01); C08G 18/4829 (2013.01); C08G 18/6677 (2013.01); C08G 18/73 (2013.01); C08G 18/7671 (2013.01); C08K 3/22 (2013.01); C09D 7/61 (2018.01); C08K 2003/2206 (2013.01)]

16 Claims

1. A two-component coating composition that is suitable for forming a coating on a surface by applying a mixed coating composition to the surface and curing the mixed coating composition, the two-component coating composition comprising

(I) Component A comprising

(i) ≥5.0 wt. % to ≤40 wt. % of one first saturated polyhydroxy compound selected from the group consisting of polyether polyol, polyester polyol, C₂to C₃₂alkyl polyol and sugar alcohol, based on the total weight of the two-component composition;

(ii) ≥2.75 wt. % to ≤50 wt. % of water, based on the total weight of the two-component composition;

(iii) ≥2 wt. % to ≤50 wt. % of at least one metal component selected from the group consisting of calcium oxide and calcium hydroxide, based on the total weight of the two-component composition; and

(iv) ≥0.2 wt. % to ≤20 wt. % of one second saturated polyhydroxy compound selected from the group consisting of C₂to C₆alkyl polyol, which is different from the first saturated polyhydroxy compound, based on the total weight of the two-component composition; and

(II) Component B comprising at least one polyisocyanate.