Coatings with a cholesteric effect and method for the production thereof

US6410130B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Peter Schuhmacher · Mannheim, DE
• Norbert Schneider · Schorndorf, DE
• Volker Richter · Neutraubling, DE
• Harald Keller · Ludwigshafen, DE
• Peter Blaschka · Ludwigshafen, DE
• Gunter Bettinger · Schifferstadt, DE
• Frank Meyer · Mannheim, DE
• Erich Beck · Ladenburg, DE
• Karl Siemensmeyer · Bischofswerda, DE
• Helmut Steininger · Neu-Anspach, DE
• Wolfgang Best · Freinsheim, DE

Key dates

• Filing date: Mar 2, 2000
• Grant date: Jun 25, 2002
• Expiry date: Mar 2, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.