Hardeners for epoxy resins, processes for producing the same and methods of using the same

US6387989B1 · kind B1 · utility

Assignee

• Cognis Deutschland GmbH · DE

Inventors

• Horst Sulzbach · Goldkronach, DE
• Thomas Huver · Goldkronach, DE
• Hans-Josef Thomas · Korschenbroich, DE
• Vincenzo Foglianisi · Milano, IT

Key dates

• Filing date: May 1, 2001
• Grant date: May 14, 2002
• Expiry date: May 1, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L63/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hardeners for epoxy resins produced by reacting one or more &agr;,&bgr;-unsaturated carboxylic acid esters with one or more aminopolyalkylene oxide compounds, reacting the thus formed intermediate with one or more polyhydroxy compounds, reacting the thus formed intermediate with one or more polyepoxide compounds, and reacting the thus formed intermediate with one or more amines are described. Processes for their production, aqueous dispersions containing the same and methods for their use are also described.