Ketone-aldehyde resins having low water content, high thermal stability and yellowing resistance

US7101958B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Patrick Gloeckner · Ratingen, DE
• Werner Andrejewski · Dorsten, DE
• Hans-Peter Bergmann · Marl, DE
• Iris Brueckner · Dorsten, DE
• Peter Denkinger · Nottuln, DE
• Michael Ewald · Marl, DE
• Thomas Weber · Ludwigshafen, DE

Key dates

• Filing date: Jul 19, 2004
• Grant date: Sep 5, 2006
• Expiry date: Jul 19, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G6/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention described herein provides ketone-aldehyde resins, especially cyclohexanone-formaldehyde resins, with low water content and high thermal stability and yellowing resistance, and to a process for preparing them and their use.