High solids water-borne surface coating containing hollow particulates

US6214450A · kind A · utility

Assignee

• TREMCO INCORPORATED · US

Inventors

• Frank Wickert · North Olmsted, US
• Donald C. Portfolio · Solon, US
• Steven J. Conway · Cambridge, US
• Gregory P. Bidinger · Akron, US
• Stephen Peters · Mentor, US

Key dates

• Filing date: Feb 25, 1998
• Grant date: Apr 10, 2001
• Expiry date: Feb 25, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A high solids, water-borne coating comprises a latex polymer, non-film-forming particulates and water. The high solids coating contains up to 90% solids (non-volatiles/volume) and pigment volume concentration (PVC) that can range between about 5% to 95%. The thick-coverage surface coating herein dries at a fast rate, provides excellent through-dry properties as measured by tensile, elongation, and water resistance, and can replace traditional coatings used in multi-coat processes. The coating herein can contain up to about 40% hollow microspheres to yield a dried coating that has up to about 57% PVC and be used as a roof coating that meets a required elongation of at least 200%.