Process for producing surface-sealed hollow glass containers having a high use strength

US6403175B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Speier · Erlangen, DE
• Peter Jenkner · Rheinfelden (Baden), DE
• Rainer Lomölder · Munster, DE
• Gerd Buchmayer · Bad Wurzach, DE
• Alois Fickler · Mindelheim, DE
• Elmar Stäbler · Bad Wurzach, DE

Key dates

• Filing date: Sep 1, 1999
• Grant date: Jun 11, 2002
• Expiry date: Sep 1, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/131
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for producing surface-sealed hollow glass containers, the hollow glass containers are, in the production process in the region of the exit from the annealing lehr which is located downstream of a machine for producing hollow glass containers, coated by means of a water-based cold end coating composition comprising at least the following components:I. a trialkoxysilane, a dialkoxysilane and/or a tetralkoxysilane or their hydrolysis and/or condensation products and alsoII. a water-soluble or water-dispersible mixture of a polyol and a crosslinker,wherein the applied layer of the cold end coating composition is subsequently subjected to a crosslinking step. The hollow glass containers produced in this way have an improved strength.