Polyurethane carpet backings with improved tuft bind

US6171678A · kind A · utility

Assignee

• Bayer Antwerpen · BE

Inventors

• Ulrich Holeschovsky · Mount Lebanon, US
• David Gibala · Downingtown, US
• Jeffrey L. Robbins · Phoenixville, US
• Robert D. Duffy · Summersville, US

Key dates

• Filing date: Jul 14, 1998
• Grant date: Jan 9, 2001
• Expiry date: Jul 14, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/23993
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Improvements in tuft bind and/or elongation of tufted carpet may be achieved by selecting, as components of a tuft bind adhesive, one or more of: i) a polyol component comprising a low or ultra-low unsaturation polyoxypropylene polyol optionally containing up to 30 weight percent oxyethylene moieties, and ii) a chain extender component comprising 2-methyl-1,3-propanediol.