| 摘要 |
Process for the production of footwear with polyurethane coated uppers and thermally bonded sole, wherein the shoe upper material is coated, before making the pattern, with a hydroxy-terminated polyurethane that contains either and/or ester groupings and has a glass-transition temperature below 200 DEG C and, after fitting and lasting of the upper, this is bonded directly (i.e. without roughing or scouring the margins of the uppers and without the use of other cementing agents or adhesive on the margins) to the sole by heat treatment at temperatures of at least 50 DEG C, and footwear so produced; if desired the polyurethane may be mixed with vinyl chloride copolymers as described herein. |
