Silyl terminated sulfopoly(ester-urethane pavement marking compositions

US5747626A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• Larry R. Krepski · White Bear Lake, US
• Steven M. Heilmann · Afton, US
• Daniel E. Mickus · Windom, US
• Wayne K. Larson · Maplewood, US
• Mark T. Gibson · Stillwater, US
• Mark D. Purgett · Oakdale, US
• Christopher J. Rueb · Windom, US
• Howell K. Smith, II · Lauderdale, US

Key dates

• Filing date: Mar 1, 1996
• Grant date: May 5, 1998
• Expiry date: Mar 1, 2016

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01F9/524
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A pavement marking composition comprises a sulfopoly(ester-urethane) polymer which comprises in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof, the polymer of said pavement marking composition being terminated by at least one hydrolyzable silyl group. A method of making the composition is disclosed. The pavement marking composition can further comprise at least one of pigments, optical elements, fillers, or other adjuvants. Particularly desirable adjuvants include optical elements, particularly retroreflective elements, skid-resistant particles, and pigments.