US 12,104,003 B2
Polyester-polyether-modified polybutadienes and processes for preparation thereof
Jana Blüm, Essen (DE); Michael Fiedel, Essen (DE); Annett Halbhuber, Krefeld (DE); Stefanie Redeker, Hattingen (DE); Frank Schubert, Neukirchen-Vluyn (DE); and Sarah Otto, Essen (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Filed by Evonik Operations GmbH, Essen (DE)
Filed on May 25, 2022, as Appl. No. 17/664,951.
Claims priority of application No. 21176161 (EP), filed on May 27, 2021.
Prior Publication US 2022/0403063 A1, Dec. 22, 2022
Int. Cl. C08F 8/08 (2006.01); C08F 136/06 (2006.01)
CPC C08F 8/08 (2013.01) [C08F 136/06 (2013.01)] 24 Claims
 
1. A compound that is polyether-modified polybutadiene, wherein the polyether-modified polybutadiene comprises repeat units selected from the group consisting of divalent radicals

OG Complex Work Unit Chemistry
wherein
A is in each case independently a monovalent organic radical or a hydrogen radical;
B is in each case independently a radical of the formula (4a)

OG Complex Work Unit Chemistry
R1 is in each case independently a monovalent hydrocarbon radical having 1 to 16 carbon atoms;
R2 is a radical of the formula —CH2O—R3;
R3 is in each case independently a monovalent hydrocarbon radical having 3 to 18 carbon atoms;
R4 is hydrogen or acyl;
m, n, o, p and q are each independently 0 to 300, with the proviso that a sum total of m, n, o, p and q is greater than 1;
for every permutation of the repeat units (U), (V), (W), (X), (Y) and (Z) and of repeat units in B, with the proviso that a sum total of all repeat units (U), (V) and (W) divided by a sum total of all repeat units (U), (V), (W), (X), (Y) and (Z) is >0%, and
wherein B has at least one ester group.