Aqueous binders for heat-sealing applications

US10155878B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Florian Hermes · Haltern am See, DE
• Dominik Sturm · Riedstadt, DE
• Christian Golditz · Salmünster, DE
• Michael Wicke · Seeheim-Jugenheim, DE
• Herbert Jung · Karlstein, DE
• Juergen Hartmann · Ludwigshafen, DE
• Bruno Keller · Zürich, CH

Key dates

• Filing date: Sep 6, 2013
• Grant date: Dec 18, 2018
• Expiry date: Mar 12, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C26/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to aqueous binders and to heat-sealing lacquers produced therefrom for heat-sealable coatings which adhere on aluminum without use of any primer, permit good sealability of the coated aluminum foil with respect to PS and/or PVC, and moreover feature good blocking resistance even at temperatures above 40° C.