USE OF SELECTED POLYETHEROLS AND POLYISOCYANATES FOR PREPARING ADHESIVES ON A POLYURETHANE BASIS
1. Use of polyether-ols, obtainable by addition of 30 to 100% by weight of one or more alkylene oxides having 4 to 20 carbon atoms, 0 to 70% by weight of tetrahydrofuran, it being possible for one or more hydrogen radicals to be replaced by lower alkyl radicals, preferably methyl radicals, and 0 to...
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Zusammenfassung: | 1. Use of polyether-ols, obtainable by addition of 30 to 100% by weight of one or more alkylene oxides having 4 to 20 carbon atoms, 0 to 70% by weight of tetrahydrofuran, it being possible for one or more hydrogen radicals to be replaced by lower alkyl radicals, preferably methyl radicals, and 0 to 50% by weight of propylene oxide (% by weight relating in each case to the total quantity of alkylene oxides), blockwise or in a random arrangement, to monohydric to tetrahydric alcohols having up to 8 carbon atoms, the alkylene oxides being added in such a quantity that the polyether-ols have an OH number of 30 to 450, as the sole or partial polyol component and of polyisocyanates of the formula see diagramm : EP0136396,P11,F2 or see diagramm : EP0136396,P11,F3 as the sole polyisocyanate component for the preparation of adhesives based on polyurethane. |
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