US 10,889,691 B2
Silsesquioxane polymers, compositions, methods, and articles
Jitendra S. Rathore, Woodbury, MN (US); Chetan P. Jariwala, Woodbury, MN (US); Lin Chen, St. Paul, MN (US); and Ramesh C. Kumar, Woodbury, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 16/640,998
PCT Filed Sep. 13, 2018, PCT No. PCT/IB2018/057022
§ 371(c)(1), (2) Date Feb. 21, 2020,
PCT Pub. No. WO2019/058228, PCT Pub. Date Mar. 28, 2019.
Claims priority of provisional application 62/561,867, filed on Sep. 22, 2017.
Prior Publication US 2020/0385531 A1, Dec. 10, 2020
Int. Cl. C09D 183/08 (2006.01); C08G 77/26 (2006.01); C08G 77/18 (2006.01); D06N 3/12 (2006.01)
CPC C08G 77/26 (2013.01) [C08G 77/18 (2013.01); C09D 183/08 (2013.01); D06N 3/128 (2013.01); D06M 2200/12 (2013.01)] 20 Claims
1. A silsesquioxane polymer comprising a three-dimensional network of Formula (I):

OG Complex Work Unit Drawing
each R1 and R2 is independently a (C1-C4)alkyl;
each L1 and L2 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof;
each R3 is independently a linear (C14-C100)alkyl;
each R4 is independently a (C1-C30)alkyl, a (C2-C30)heteroalkyl having at least one oxygen, sulfur, or —NH— group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group;
with the proviso that L1, L2, and R4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl;
m is an integer of at least 2;
n is an integer of 0 or above;
m+n is an integer of at least 3;
each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and
the silsesquioxane polymer is a solid at 25° C.