| abstract |
The present invention relates to polyurethanes obtainable by mixing to a reaction mixture of (a) polyisocyanate, (b) polymeric compounds having isocyanate-reactive groups, (c) catalysts comprising incorporable amine catalysts, (d) phosphoric acid esters, polyphosphates, phosphonic acid esters and / or phosphorous acid esters and optionally (e) blowing agent, (f) chain extenders and / or crosslinking agents, and (h) auxiliaries and / or additives and reacting the reaction mixture to the polyurethane, wherein the phosphoric acid ester is of the general formula (R 1 -O) 3 -P = O, wherein the three radicals R 1 independently of one another are organic radicals which contain one or more phenyl groups, one or more phosphoric acid groups or their esters and / or one or more atoms selected from the group consisting of nitrogen, oxygen, fluorine, chlorine and bromine , the polyphosphate of the general formula - [P (O) (O - R ' + ) - O] n - correspond t, where n is an integer from 2 to 20, R ' + represents alkali metal cations or ammonium cations, the phosphonic acid ester of the general formula (R 3 ) (R 2 -O) 2 -P = O, where the radicals R 2 are independent are each other organic radicals containing one or more atoms selected from the group consisting of nitrogen, oxygen, fluorine, chlorine and bromine, and the radical R 3 either hydrogen or aromatic, aliphatic or cycloaliphatic radicals having 1 to 10 carbon atoms and the phosphorous acid ester is of the general formula (R 4 -O) 3 -P, where the radicals R 4 independently of one another are organic radicals which contain one or more atoms selected from the group consisting of nitrogen, oxygen, fluorine, chlorine and bromine, included. Furthermore, the invention relates to a process for the preparation of such polyurethanes and their use in the automotive interior. |