Epoxy/amine adducts for dispersing solids

US10301486B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Bernd Göbelt · Wesel, DE
• Jürgen Omeis · Wulfen, DE
• Andreas Okkel · Wesel, DE
• Marcus Meichsner · Kamp-Lintfort, DE
• Astrid Rudolfi · Wesel, DE

Key dates

• Filing date: Oct 13, 2015
• Grant date: May 28, 2019
• Expiry date: Oct 13, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/102
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to comb copolymers, which can be produced from at least one diglycidyl ether (A) of general formula (I), at least one polyether monoamine (B) of the general formula Rt—[OEt]n[OPr]m[OBu]s—NH2, at least one amine (C) of the general formula Z—R1—NH2, and optionally at least one secondary amine (D) that is free of primary amino groups and is of the general formula NHTV, wherein R stands for a residue free of epoxy groups, selected from aliphatic residues, aromatic residues, and araliphatic residues; Rt stands for a residue selected from alkyl residues having 1 to 6 carbon atoms; OEt stands for an ethylene oxide residue, OPr stands for a propylene oxide residue, and OBu stands for a butylene oxide residue; n stands for a number from 0 to 100, m stands for a number from 3 to 50, and s stands for a number from 0 to 20, and n+m+s=3 to 103; R1 stands for an aliphatic, aromatic, or araliphatic hydrocarbon residue having 1 to 12 carbon atoms; Z stands for a residue free of primary and secondary amino groups and having at least one basic nitrogen atom, T and V do not contain any secondary amino groups and stand, independently of each other, for aliphatic residues having 1…