| 摘要 |
This invention is an antistatic polyurethane shoe sole which is prepared by reacting in a closed mold a reaction mixture comprising (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, (b) a chain extender compound, in an amount from about 5 to about 40 parts per 100 parts of component (a), (c) a sufficient amount of a blowing agent to provide a density of about 10 to about 65 pounds per cubic foot, (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 (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.
|
