US 12,460,051 B2
Curing catalyst used for curing 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. 18/002,470
Filed by NITTO KASEI CO., LTD., Osaka (JP)
PCT Filed Jun. 23, 2021, PCT No. PCT/JP2021/023730
§ 371(c)(1), (2) Date Dec. 19, 2022,
PCT Pub. No. WO2022/004512, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. JP2020-111532 (JP), filed on Jun. 29, 2020.
Prior Publication US 2023/0357509 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 77/08 (2006.01); C07C 211/63 (2006.01); C07F 7/28 (2006.01)
CPC C08G 77/08 (2013.01) [C07C 211/63 (2013.01); C07F 7/28 (2013.01)] 6 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 (1.) a titanium compound [B1] and (2.) an ammonium hydroxide [B2], and an amino group-containing compound [B3] containing a primary amino group and/or a secondary amino group,
the titanium compound [B1] is represented by Chemical Formula (1),
the ammonium hydroxide [B2] is represented by Chemical Formula (2),
(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.