US 12,215,198 B2
Branched organosilicon compound, method of preparing same, and compositions comprising same
Nanguo Liu, Midland, MI (US); and Zachary Wenzlick, Midland, MI (US)
Assigned to Dow Silicones Corporation, Midland, MI (US)
Appl. No. 17/418,976
Filed by Dow Silicones Corporation, Midland, MI (US)
PCT Filed Dec. 30, 2019, PCT No. PCT/US2019/068968
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2020/142442, PCT Pub. Date Jul. 9, 2020.
Claims priority of provisional application 62/786,644, filed on Dec. 31, 2018.
Prior Publication US 2022/0112338 A1, Apr. 14, 2022
Int. Cl. C08G 77/46 (2006.01); C07F 7/08 (2006.01); C08G 77/12 (2006.01); C08G 77/20 (2006.01); C09D 183/12 (2006.01)
CPC C08G 77/46 (2013.01) [C07F 7/0834 (2013.01); C07F 7/0874 (2013.01); C08G 77/12 (2013.01); C08G 77/20 (2013.01); C09D 183/12 (2013.01)] 15 Claims
 
1. A branched organosilicon compound having the general formula:

OG Complex Work Unit Chemistry
where X is a divalent linking group, each R is independently a substituted or unsubstituted hydrocarbyl group, each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi (R4)3, and 1≤n≤10; where each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; where each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; where 0≤m≤100; and
where R3 has the general formula -D-Op—(CqH2qO)r—R8, where D is a divalent hydrocarbon linking group having from 2 to 18 carbon atoms, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and R8 is selected from substituted or unsubstituted hydrocarbyl groups and H.