Dispersing additives based on phosphoric acid ester derivatives

US9518146B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Bernd Göbelt · Wesel, DE
• René Nagelsdiek · Hamminkeln, DE
• Jürgen Omeis · Wulfen, DE
• Frederik Piestert · Wesel, DE
• Wolfgang Pritschins · Wesel, DE
• Natasa Meznaric · Duisburg, DE
• Daniela Schröder · Rheinberg, DE
• Werner Tiegs · Rees, DE

Key dates

• Filing date: May 4, 2012
• Grant date: Dec 13, 2016
• Expiry date: May 4, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2150/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants. The derivatives are present according to the general formula (I)Y(—O—CO—NH—R1—NH—CO—X—Z1)g  (I)