Method for surface hardening substances by application of particularly transparent polymethacrylate layers

US8192844B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Uwe Numrich · Weiterstadt, DE
• Michael Wicker · Seeheim-Jugenheim, DE
• Achim Neuhaeuser · Mainz, DE
• Christoph Krohmer · Riedstadt, DE
• Guenther Dickhaut-Bayer · Riedstadt, DE

Key dates

• Filing date: Dec 23, 2009
• Grant date: Jun 5, 2012
• Expiry date: Jul 29, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/291
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention describes a process for the surface finishing of materials via application of specific polymethacrylate layers. The polymethacrylate layers are composed of blends of at least two (co)polymers of polymethacrylates, and specific “reactive monomers” are present here in a polymerized mixture which forms the polymethacrylate layer. At the application temperature established, these form a chemical and, where appropriate, also a physical bond to the substrate, and therefore have adhesion-promoting action.