Resins based on ketones and aldehydes, having improved solubility properties and low color numbers

US7812109B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Patrick Gloeckner · Ratingen, DE
• Bettina Burian · Dorsten, DE
• Peter Denkinger · Nottuln, DE
• Lutz Mindach · Marl, DE
• Franz-Josef Wesselbaum · Marl, DE

Key dates

• Filing date: Dec 23, 2008
• Grant date: Oct 12, 2010
• Expiry date: Dec 23, 2028

Classification

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

Abstract

A resin is based on ketones and aldehydes and is prepared in methanol or ethanol in the presence of a phase transfer catalyst. The resin features a very broad solubility and low intrinsic color.