Abstract: The invention relates to a method for producing soft polyurethane foam obtained by reacting a composition containing a component A1 containing at least one filled polyol, a component A2 containing compounds reactive with isocyanates and having a hydroxyl value of ?20 to <100 mg KOH/g, the component A2 not containing any filled polyol, a component A3 containing water and/or at least one physical blowing agent, a component A4 containing auxiliary agents and additives, and a component B containing di- and/or polyisocyanates, characterized in that the reaction occurs in the presence of 0.5 to 3 parts by weight of an organic urea derivative as component C, which is obtained by reacting urea with a difunctional amine having a number-average molecular weight of 200 to 1000 g/mol. The invention also relates to a soft polyurethane foam obtainable by the method.

Abstract: The present invention relates to a process for preparing a polyisocyanate, namely an isocyanate group-terminated polyol polyanthranilic acid ester. The process comprises the step of reacting an anthranilic acid derivative selected from anthranilic acid halide (in particular anthranilic acid chloride), isatoic anhydride or a mixture thereof with a first polyol of a number-average molar mass of at least 200 g/mol and a functionality in the range of 2 to 8, and obtaining, as a result, a polyamine (namely a polyol polyanthranilic acid ester with amine terminal groups) and reacting the polyamine with phosgene and obtaining, as a result, a polyisocyanate (namely an isocyanate group-terminated polyol polyanthranilic acid ester). The invention further relates to the polyisocyanates obtained in this way, their use in polyaddition reactions, and polyaddition products obtainable by these reactions.

Abstract: The invention relates to a method for producing soft polyurethane foam obtained by reacting a composition containing a component A1 containing at least one filled polyol, a component A2 containing compounds reactive with isocyanates and having a hydroxyl value of ?20 to <100 mg KOH/g, the component A2 not containing any filled polyol, a component A3 containing water and/or at least one physical blowing agent, a component A4 containing auxiliary agents and additives, and a component B containing di- and/or polyisocyanates, characterized in that the reaction occurs in the presence of 0.5 to 3 parts by weight of an organic urea derivative as component C, which is obtained by reacting urea with a difunctional amine having a number-average molecular weight of 200 to 1000 g/mol. The invention also relates to a soft polyurethane foam obtainable by the method.

Abstract: The present invention relates to flame-retarded rigid polyurethane and/or polyurethane/polyisocyanurate foams (hereinafter individually or jointly also termed “rigid PUR/PIR foams”), and also to a process for producing rigid PUR/PIR foams that comprises reacting a reaction mixture comprising A1 an isocyanate-reactive component, A2 blowing agent A3 catalyst, A4 optionally additive, A5 flame retardant, and B an isocyanate component, and that is characterized in that the flame retardant A5 comprises at least two phosphorus-containing compounds, with one of the two compounds having the general formula R1R2(O)P—[O—R5—R6—O—P(O)R3]nR4 (I) or R1R2(O)P—[O—R5—X—R6—O—P(O)R3]nR4 (II), where X=an alkylene group, N—R7, O, CO, S, SO, SO2 OR P—R7, n=an integer from 0 to 4, preferably 1 or 2, R1, R2, R3, R4=in each case an aryl-O—, aryl- or alkyl groups, R5, R6=in each case an arylene group, R7=an aryl-O—, aryl- or alkyl group, where the at least one compound having the general formula (I) or (II) is used in an oligomer mixtu

Abstract: The invention relates to a method for producing polyurethane foams by reacting the following components A a polyol component containing A1 40 to 100 parts by weight of polyether carbonate polyol with a hydroxyl number according to DIN 53240-1 June 2013 of 20 mg KOH/g to 120 mg KOH/g, A2 0 to 60 parts by weight of polyether polyol with a hydroxyl number according to DIN 53240-1 June 2013 of 20 mg KOH/g to 250 mg KOH/g and an ethylene oxide content of 0 to 60 wt. %, wherein polyether polyol A2 is free from carbonate units, B B1 a catalyst and B2 optionally auxiliary and additional materials, C water and/or physical blowing agents with D di- and/or polyisocyanates, wherein the production occurs at a characteristic value of 90 to 120, characterised in that the component A contains a component A5 of 0.05 to 10.00 parts by weight of polyester polyol, in relation to the sum of the parts by weight of the components A1+A2=100 parts by weight, said polyester polyol containing units derived from malonic acid.

Abstract: The invention relates to a method for producing polyurethane foams by reacting the following components A a polyol component containing A1 40 to 100 parts by weight of polyether carbonate polyol with a hydroxyl number according to DIN 53240-1 Jun. 2013 of 20 mg KOH/g to 120 mg KOH/g, A2 0 to 60 parts by weight of polyether polyol with a hydroxyl number according to DIN 53240-1 Jun. 2013 of 20 mg KOH/g to 250 mg KOH/g and an ethylene oxide content of 0 to 60 wt. %, wherein polyether polyol A2 is free from carbonate units, B B1 a catalyst and B2 optionally auxiliary and additional materials, C water and/or physical blowing agents with D di- and/or polyisocyanates, wherein the production occurs at a characteristic value of 90 to 120, characterised in that the component A contains a component A5 of 0.05 to 10.00 parts by weight of polyester polyol, in relation to the sum of the parts by weight of the components A1+A2=100 parts by weight, said polyester polyol containing units derived from malonic acid.

Abstract: The invention relates to a device for applying a foamable reaction mixture to a moving cover layer, comprising a mixing head (100) having at least two inlets (200, 300) and at least one outlet (400) for mixing components that produce the foamable reaction mixture, and a conduit (410, 420, 430, 440) connected to the outlet of the mixing head, through which conduit the foamable reaction mixture can flow, and which has a discharge element (500), from which the foamable reaction mixture can be applied to the cover layer. The conduit (410, 420, 430, 440) is designed to include at least two configurations, which differ in the path length, which the reaction mixture flowing through the conduit covers. The invention further relates to a method for applying a foamable reaction mixture to a moving cover layer using a device according to the invention.

Abstract: The present invention relates to a special process for preparing polyesterols having terminal hydroxyl groups and containing imide groups, to the polyesters per se, and to their use for the preparation of polyurethanes.

Abstract: Male Luer connector (200, 300) comprising a tubular body (210, 310) with a conical outer sheath (212) and a connection blocking element (230, 330) wherein the connection blocking element (230, 330) delimits a space around the tubular body (210, 310) and forms a codification stopper (240, 340) in axial direction (A). Female Luer connector (100) comprising a hollow reception body (110) with a conical reception (112) and a collar (120) at the outer end of the reception body (110) wherein the collar (120) comprises at least one codification notch (140). Connection system (400) comprising a male and a female Luer connector (100, 200, 300).