Polyester-modified amino adducts

US10836857B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Irina Giebelhaus · Cologne, DE
• Andreas Okkel · Wesel, DE
• Wolfgang Pritschins · Wesel, DE

Key dates

• Filing date: Sep 11, 2017
• Grant date: Nov 17, 2020
• Expiry date: Dec 4, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D167/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to processes for producing an amine adduct in which in a 1st step a polyamine (A) is reacted with a monomer (C) in the form of an epoxide, an oxetane or a cyclic carbonate to afford an (intermediate) product (AC) which in a subsequent 2nd step is reacted with a monomer (B) in the form of a lactone, an acyclic hydroxycarboxylic acid or a hydroxy-functional acyclic ester to afford a (descendant) product (ACB), wherein the polyamine (A) in each case comprises at least three amino groups (A+) selected from primary and secondary amino groups and each capable of reaction with the monomers (C) and (B), the monomer (C) contains no ester groups, no carboxyl groups and no primary or secondary amino groups and in the 1st step with ring opening and formation of a hydroxyl group (H+) reacts with one of the amino groups (A+) of the polyamine (A) with additional formation of either a carbon-nitrogen bond or a urethane bond, the monomer (B) contains no primary or secondary amino groups, has a molecular weight of 90-300 g/mol and in the 2nd step reacts in such a way that any amino groups (A+) not converted in the 1st step are converted into amide groups and hydroxyl groups (H+…