US 12,479,869 B2
Curing catalyst used for curing of polymer, method for producing same, moisture-curable composition, and method for producing cured product
Yuya Nakagawa, Osaka (JP); Kazunori Namba, Osaka (JP); Haruka Yoshiyama, Osaka (JP); Yuji Imada, Osaka (JP); and Nanae Kikui, Osaka (JP)
Assigned to NITTO KASEI CO., LTD., Osaka (JP)
Appl. No. 18/002,463
Filed by NITTO KASEI CO., LTD., Osaka (JP)
PCT Filed Jun. 23, 2021, PCT No. PCT/JP2021/023729
§ 371(c)(1), (2) Date Dec. 19, 2022,
PCT Pub. No. WO2022/004511, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2020-111531 (JP), filed on Jun. 29, 2020.
Prior Publication US 2023/0234976 A1, Jul. 27, 2023
Int. Cl. C07F 7/28 (2006.01); C08G 77/08 (2006.01)
CPC C07F 7/28 (2013.01) [C08G 77/08 (2013.01)] 7 Claims
 
1. A curing catalyst [B] used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group, wherein:
the curing catalyst [B] contains a complex of a (1.) titanium compound and (2.) an ammonium hydroxide [B2], and an amine compound [B3];
the titanium compound [B1] is represented by Chemical Formula (1);
the ammonium hydroxide [B2] is represented by Chemical Formula (2); and
the amine compound [B3] is represented by Chemical Formula (3), Chemical Formula (4), or Chemical Formula (5);
(R1—O)nTi—A4-n  (1)
in Chemical Formula (1), R1 is a substituted or unsubstituted hydrocarbon group, n is 1 to 4, and A is a β-diketone group;

OG Complex Work Unit Chemistry
in Chemical Formula (2), R2, R3, R4 and R5 represent substituted or unsubstituted hydrocarbon groups having 1 to 8 carbon atoms, which are the same as or different from each other, and X represents a hydroxyl group;
[Chem. 3]
R6-N═CR7-NR82(3)
in chemical Formula (3), R6, R7, and R8 represent hydrogen atoms or substituted or unsubstituted hydrocarbon groups having 1 to 20 carbon atoms, which are the same as or different from each other, the two R8 may be the same as or different from each other, and any two or more of R6, R7 and the two R8 may be bonded to each other to form a cyclic structure;

OG Complex Work Unit Chemistry
in Chemical Formula (4), R9, R10, and R11 represent hydrogen atoms or substituted or unsubstituted hydrocarbon groups having 1 to 20 carbon atoms, which are the same as or different from each other, the two R9 and the two R11 may each be the same as or different from each other, and any two or more of the two R9, R10 and the two R11 may be bonded to each other to form a cyclic structure;

OG Complex Work Unit Chemistry
in Chemical Formula (5), R12, R13, and R14 represent hydrogen atoms or substituted or unsubstituted hydrocarbon groups having 1 to 10 carbon atoms, which are the same as or different from each other, m is 1 to 10, n is 1 to 10, p is 0 to 10, and any two or more of the two R12, the two R13, and the p number of R14 may be bonded to each other to form a cyclic structure.