Aqueous and transparent coatings for marking substrates

US8642504B2 · kind B2 · utility

Assignee

• Gill Jennings & Every LLP · GB

Inventors

• Jonathan Campbell · Harvest, US
• William J. Walker, Jr. · Manchester, GB
• Alan Platt · Midland, US
• John Whitworth · Audenshaw, GB
• Karen O'Donoghue · Blieskastel, DE
• Ann Hunt · Greenwood, US
• Howard Roger Dungworth · Halifax, GB
• John Mark Plonka · Leeds, GB

Key dates

• Filing date: Jul 17, 2006
• Grant date: Feb 4, 2014
• Expiry date: Feb 11, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24802
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The present invention provides a composition, which comprises an aqueous solvent and forms a transparent colorless coating, which yields markings of high contrast on exposure to energy. It also provides a process for the preparation of these compositions, substrates coated with these compositions and a process for their preparation, a process for preparing marked substrates using these compositions and marked substrates obtainable by the latter process.