| 摘要 |
The invention comprises a process for the preparation of a coating, adhesive, film or sheet. In this process a mixture of a polyisocyanate functional, a polyepoxide functional, a polyanhydride functional or a polyketone functiona l compound or polymer and a compound containing reactive hydrogen, in which th e compound containing reactive hydrogen is dispersed in a material which is non--reactive towards the compound containing reactive hydrogen, which mixtu re is not or low reactive at ambient conditions and high reactive under selected conditions, is applied onto a substrate at ambient temperature, followed by reacting the above compounds at elevated temperatures. At ambient temperature said compound containing reactive hydrogen is a solid material, a powder, a granule, a flake or grind or a mixture thereof which is preferably ground. The inventio n comprises further the coating mixtures to be used in the process and the coatings, coated substrates, adhesives, films, sheets, impregnated substrates, synthet ic leathers, inmould coatings, coated leathers, coated polyvinylchlorides, coat ed non-wovens, coated coagulated polyurethane substrates, breathable coated substrates, obtained by applying the process.
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