US 12,234,311 B2
Amphiphilic block copolymer
Daniel Leibig, Wesel (DE); Holger Frey, Wesel (DE); Patrick Verkoyen, Wesel (DE); Astrid Rudolfi, Wesel (DE); Udo Krappe, Wesel (DE); Jan Blankenburg, Wesel (DE); and Guillaume Wojciech Jaunky, Wesel (DE)
Assigned to BYK-Chemie GmbH, Wesel (DE)
Appl. No. 17/798,920
Filed by BYK-Chemie GmbH, Wesel (DE)
PCT Filed Mar. 4, 2021, PCT No. PCT/EP2021/055423
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/175972, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 20161594 (EP), filed on Mar. 6, 2020.
Prior Publication US 2023/0095096 A1, Mar. 30, 2023
Int. Cl. C08F 283/06 (2006.01); C08G 65/08 (2006.01); C08G 65/24 (2006.01); C08G 65/26 (2006.01); C09B 67/00 (2006.01); C09C 3/10 (2006.01); C09D 7/65 (2018.01); C09D 17/00 (2006.01); C09K 23/16 (2022.01); C09K 23/42 (2022.01)
CPC C08F 283/06 (2013.01) [C08G 65/08 (2013.01); C08G 65/24 (2013.01); C08G 65/2609 (2013.01); C08G 65/2624 (2013.01); C09D 7/65 (2018.01); C09D 17/005 (2013.01); C09K 23/16 (2022.01); C09K 23/42 (2022.01); C08G 2650/50 (2013.01); C08G 2650/58 (2013.01); C09B 68/4235 (2013.01); C09C 3/10 (2013.01)] 17 Claims
 
1. A block copolymer comprising
i) A first block wherein at least 65 mol-% of the repeating units of the first block are repeating units of formula (I)
—[CH2—CH2—O]—  (I),
ii) A second block wherein at least 90 mol-% of the repeating units of the second block are repeating units of at least one of formulae (II) or (III),

OG Complex Work Unit Chemistry
wherein the groups R1, R2, and R3 independent of each occurrence are selected from hydrocarbyl groups having 1 to 40 carbon atoms, which are optionally substituted by ether or hydroxyl groups, and wherein the groups R1 and R2 are optionally linked to each other such that a nitrogen heterocyclic structure is present,
iii) A third block which is different from the first block and the second block and which is more hydrophobic than the first block.