Surfactant mixtures

US10590262B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Joerg Pahnke · Darmstadt, DE
• Gerhard Jonschker · Friedrichsthal, DE
• Steffen Schellenberger · Darmstadt, DE
• Mathias Kaiser · Nettetal, DE

Key dates

• Filing date: Jul 26, 2013
• Grant date: Mar 17, 2020
• Expiry date: Apr 22, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/51
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to novel surfactant mixtures comprising at least one compound A whose dynamic surface tension γdyn. at a use concentration of 0.1% by weight and a bubble lifetime of 100 ms is <45 mN/m, and at least one compound B whose static surface tension ystat measured at a use concentration of 0.1% by weight is less than or equal to the static surface tension Ystat of compound A, to the use thereof as additives, for example in preparations for surface coating, such as paints, lacquers, protective coatings and special coatings in electronic or in optical applications. At least one compound in the novel surfactant mixture is a fluorosurfactant.