Non-pigmented dispersant composition

US12116492B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Andreas Okkel · Wesel, DE
• Hiroshi Yonehara · Kasai, JP
• Benjamin Lindner · Linz, AT
• Jörg Bömer · Wesel, DE
• Albert Frank · Xanten, DE
• Udo Krappe · Nideggen, DE
• Ryo Takabayashi · Kasai, JP
• Yoshizumi Kohara · Osaka, JP

Key dates

• Filing date: Apr 22, 2020
• Grant date: Oct 15, 2024
• Expiry date: Sep 6, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/0007
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a non-pigmented composition comprising a) a block co-polymer comprising at least one first block and at least one second block which is different from the first block, wherein the first block comprises repeating units 1, repeating unit 1 and the second block comprises repeating units 2, repeating unit 2 wherein Z represents O or NH, R1 represents H or CH3, R2 represents a group selected from hydrocarbyl groups and ether group-containing groups, R3 represents an organic group having 2 to 4 carbon atoms, R4 and R5 independently represent an organic group, wherein R4 and R5 are optionally linked to each other to form a cyclic structure, and b) a polymer comprising at least one acidic group, and having a number average molecular weight of 300 g/mol or higher.