Process for coating plastic substrates

US6426144B1 · kind B1 · utility

Assignee

• Leybold Systems GmbH · DE

Inventors

• Heinrich Grunwald · Florstadt, DE
• Thomas Schulte · Paderborn, DE
• Klaus Nauenburg · Hanau, DE
• Wilfried Dicken · Wächtersbach, DE
• Rudolf Beckmann · Wahlstedt, DE

Key dates

• Filing date: Jan 13, 2000
• Grant date: Jul 30, 2002
• Expiry date: Jan 13, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31667
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for coating plastic substrates with a transparent layer compact that is not sensitive to scratches and abrasion and resistant to atmospheric influence with a plasma flame in a vacuum chamber at some distance from the substrate. The process includes the steps of:a cleaning of the substrate with an oxidizing gas in a first procedural step and thena cross linkage with an inert gas in a second procedural step,an oxidizing gas and a silicon-organic compound are used in a third procedural step to produce a first barrier layer, andan oxidizing gas, a silicon-organic compound, and a UV-absorbing compound are used in a fourth procedural step to deposit a sublayer with UV absorbers,an oxidizing gas and a silicon-organic compound are used in a fifth procedural step to deposit a scratch-resistant layer,an inert gas and a silicon-organic compound are used in a sixth procedural step to deposit a smooth layer.