Antistatic polyurethane shoe sole compositions

US4861805A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Jose V. Saavedra · Lake Jackson, US
• Douglas L. Hunter · Lake Jackson, US
• Steve A. Sims · Angleton, US
• Donald M. Maschmeyer · Lake Jackson, US
• Thomas M. Knobel · Hackensack, US

Key dates

• Filing date: Dec 5, 1986
• Grant date: Aug 29, 1989
• Expiry date: Dec 5, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/0075
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention is an antistatic polyurethane shoe sole which is prepared by reacting in a closed mold a reaction mixture comprising PA0 (a) a relatively high equivalent weight polyester polyol or a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C3-C6 cyclic ether, PA0 (b) a chain extender compound, in an amount from about 5 to about 40 parts per 100 parts of component (a), PA0 (c) a sufficient amount of a blowing agent to provide a density of about 10 to about 65 pounds per cubic foot, PA0 (d) a polyisocyanate, in an amount to provide about 0.9 to about 1.2 isocyanate groups per active hydrogen-containing group present in the reaction mixture, and PA0 (e) a non-volatile ionizable metal salt, in an amount from about 0.01 to about 1 part per 100 parts by weight of component (a), said reaction being conducted in the substantial absence of a carboxylic acid ester of 6-30 carbon atoms, a fatty acid salt and a phosphate ester compound.