Importance

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Abstract

The present invention relates to a process for preparing polyurethanes, in which (a) polyisocyanate, (b) polymeric compounds with groups that are reactive towards isocyanates, (c) catalysts, (d) 0.01 to 1% by weight of an aliphatic hydrocarbon (d1) having 2 to 15 carbon atoms which comprise at least one heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, and at least one chlorine or bromine atom, and/or phosphoric acid ester (d2), (e) antioxidants and/or light stabilizers and optionally (f) blowing agents, (g) chain extenders and/or crosslinking agents and (h) auxiliaries and/or additives are mixed to give a reaction mixture and the reaction mixture is allowed to fully react to give the polyurethane, where the phosphoric acid ester corresponds to the general formula (R¹—O)₃—P═O, where the three radicals R¹, independently of one another, are organic radicals which comprise one or more phenyl groups, one or more phosphoric acid groups (polyalkyl phosphate with ethylene oxide) or esters thereof and/or one or more atoms selected from the group consisting of nitrogen, oxygen, fluorine, chlorine and bromine. Furthermore, the present invention relates to polyurethanes obtainable by a process according to the invention and to the use of these polyurethanes in the interior of means of transport.

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First Claim