US 12,264,104 B2
Multi-component composition for manufacturing polyurethane/urea cementitious hybrid systems
Hang Xu, Chigasaki (JP); Jie Shen, Shanghai (CN); ShengZhong Zhou, Shanghai (CN); Stefan Hirsemann, Shanghai (CN); Andrew Tasker, Redditch (GB); Josef Weichmann, Trostberg (DE); and Lei Guo, Shanghai (CN)
Assigned to SIKA TECHNOLOGY AG, Baar (CH)
Appl. No. 17/425,056
Filed by SIKA TECHNOLOGY AG, Baar (CH)
PCT Filed Jan. 31, 2020, PCT No. PCT/EP2020/052439
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/164928, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. PCT/CN2019/074861 (WO), filed on Feb. 12, 2019.
Prior Publication US 2022/0098102 A1, Mar. 31, 2022
Int. Cl. C04B 24/28 (2006.01); C04B 28/04 (2006.01); C04B 40/00 (2006.01); C04B 103/00 (2006.01); C08G 18/12 (2006.01); C08G 18/18 (2006.01); C08K 5/10 (2006.01)
CPC C04B 24/282 (2013.01) [C04B 28/04 (2013.01); C04B 40/0046 (2013.01); C08G 18/12 (2013.01); C08G 18/1825 (2013.01); C08K 5/10 (2013.01); C04B 2103/0046 (2013.01)] 26 Claims
 
1. A multi-component composition comprising:
(A) at least one isocyanate component selected from the group consisting of monoisocyanate, polyisocyanate and NCO terminated prepolymer;
(B) at least one organic isocyanate-reactive compound selected from the group consisting of polyol, polyamide, polyamine, and polyesteramide;
(C) water;
(D) catalyst;
(E) at least one acidic additive that is selected from diketones and compounds having the general formula (II):
R1—COOCO—R2  (II)
wherein
R1 and R2 are independently from each other selected from the group consisting of C1-C30-alkyl, C2-C30-alkenyl, C3-C30-cyclolalkyl, C3-C30-heterocyclyl, C3-C30-heterocyclyl-C1-C30-alkyl, C6-C30-aryl, C6-C30-aryl-C1-C30-alkyl, C2-C30-heteroaryl, C2-C30-heteroaryl-C1-C30-alkyl, and C1-C30-alkoxy-C1-C30-alkyl, each of which radicals is optionally substituted by halogen, cyano, nitro, C1-C6-alkyl, oxo, acyl, or C3-C6-cycloalkyl, with the heteroatom being selected from N, O and S,
or
R1 and R2, together with the carbon and oxygen atoms attached thereto, form a saturated or unsaturated 5- to 10-membered hetero ring, the ring being optionally fused with phenyl, with R1 and R2 being optionally replaced by heteroatoms selected from N, O and S, and being optionally substituted by halogen, cyano, nitro, C1-C6-alkyl, oxo, acyl, or C3-C6-cycloalkyl; and
(F) hydraulic binder;
wherein the at least one acidic additive is present in an amount of 0.01 to 3 wt % based on the total weight of the composition.