Process for producing antireflection-treated surfaces

US5855717A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Ekkehard Beer · Schlangenbad, DE
• Hermann Dallmann · Wiesbaden, DE
• Hajo Hagens · Wiesbaden, DE

Key dates

• Filing date: Feb 20, 1992
• Grant date: Jan 5, 1999
• Expiry date: Feb 20, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/151
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for producing an article by transferring to at least one surface of the article, a surface structure of a polymeric film, the surface structure comprising individual, randomly distributed elevations, so that the resultant article comprises the surface structure or a mirror image of the surface structure, the transferring comprising: a) applying the film to the article as a cover layer wherein a surface of the film comprising the structure faces outward from the article; or b) transferring the surface structure of the film to the article by applying a surface of the film having the structure to the article, so as to form a mirror-image of the structure on the molded body, and optionally removing the film; the process produces an article having at least one surface which exhibits antireflection properties.