| 摘要 |
A method for production of coated polyurethane materials through application of a binding agent onto the fabric, whereas the binding agent is heated up to a temperature of 40-100 degrees C, and consists of polyester, blocked urethane prepolymer and possibly catalysts and plasticisers, agents improving paint fluidity and other additives, followed by hardening in a temperature of 140 - 200 degrees C, characterised in that the mixture used as the binding agent includes from 40 to 60 parts by weight of polyester of hydroxyl number between 40 and 90 mg KOH/g, acid value below 2 mg KOH/g and viscosity in a temperature of 70 degrees C being 200-1,000 mPa.s and from 60 to 40 parts by weight of blocked urethane prepolymer obtained from the same polyester, diisocyanates and blocking compounds, whereas per 1 mole of hydroxyl group in polyester there is 0.9 - 1.3, preferably 1.0-1.1 mole of the blocked isocyanate groups.
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