Patent · US Active

Amphiphilic block copolymer

US12234311B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

BYK-CHEMIE GMBH · DE

Inventors

Daniel Leibig · Wesel, DE
Holger Frey · Emmendingen, DE
Patrick Verkoyen · Wesel, DE
Astrid Rudolfi · Wesel, DE
Udo Krappe · Nideggen, DE
Jan Blankenburg · Wesel, DE
Guillaume Wojciech Jaunky · Wesel, DE

Key dates

Filing date	Mar 4, 2021
Grant date	Feb 25, 2025
Priority date	—
Expiry date	Mar 17, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C3/10
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to block copolymer comprising i) A first block wherein at least 65 mol-% of the repeating units of the first block are repeating units of the formula (I)—[CH2—CH2—O]—, 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), 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.