Method for producing effect pigment pastes using a vibrator

US12312488B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Olga Lemmer · Münster, DE
• Stephan Schwarte · Münster, DE
• Michael Bruennemann · Münster, DE
• Christian Kunkelmann · Ludwigshafen, DE
• Ulrich Horstkoetter · Münster, DE
• Hendrik Czaudema · Münster, DE
• Sandra Kloetter · Münster, DE

Key dates

• Filing date: Aug 12, 2020
• Grant date: May 27, 2025
• Expiry date: May 3, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C3/046
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Described herein is a process for producing an effect pigment paste including at least steps (1) and (2), namely producing a mixture including at least one effect pigment (a) and at least one polymer (b) in a liquid medium (c) (step (1)), and dispersing the mixture obtained after step (1) to obtain the effect pigment paste (step (2)), where step (2) is performed using a shaker and the effect pigment paste obtained after the performance of step (2) has ended is free of grinding media. Also described herein are an effect pigment paste producible by this process, containing an amount of effect pigment of at least 5% by weight, based on the total weight of the effect pigment paste, and a method of using a shaker for dispersing of effect pigments for production of an effect pigment paste.