| abstract |
The present invention relates to a process for the preparation of polyurethanes, wherein (a) a polyisocyanate, (b) a polymeric compound having isocyanate-reactive groups, (c) a catalyst, (d) are selected from the group according to the general formula (I) Sulfinic acid derivatives of sulfinic acid and/or sulfur-carbon compounds of sulfonic acid derivatives according to general formula (II), wherein R 1 and R 2 may be the same or different, and each represents any substituted or unsubstituted hydrocarbyl group, provided that The carbon atom bound to the sulfur atom is an aliphatic carbon atom, and optionally (e) a blowing agent, (f) a chain extender and/or a crosslinking agent, and (g) a auxiliaries and/or additives are mixed into a reaction mixture and allow the reaction mixture to fully react into polyurethane. The invention also relates to the polyurethane prepared according to this method, and to the use of this polyurethane in the interior of vehicles. |