Abstract: An aliphatic polyketone compound including 85.0 to 99.5 wt % aliphatic polyketone and 0.5 to 15.0 wt % ultra-high molecular weight polyethylene. An aliphatic polyketone compound described where the ultra-high molecular weight polyethylene is 2.0 to 8.0 wt %. An aliphatic polyketone compound where the ultra-high molecular weight polyethylene has a molecular weight greater than 1.0 million g/mol.

Abstract: A moulding including a matrix obtained from a reaction of a polyaryletherketone (PAEK) with at least one crosslinker capable of thermal crosslinking with keto groups of the PAEK to form at least two imine groups per crosslinker molecule. The crosslinker is selected from oligomers/polymers which have at least two amide groups or at least one amide group and at least one primary amino group or at least two imide groups or at least one imide group and at least one primary amino group, saturated alicyclic compounds which are different from the oligomers/polymers and have at least two primary amino groups, and mixtures thereof.

Abstract: A molding comprising a matrix from the crosslinking of an aliphatic polyketone with at least one diamine source as crosslinker with formation of imine groups, or a polymer mixture comprising at least one polyketone (PK) and at least one crosslinker, in which the diamine source and the at least one crosslinker are selected from di(aminophenyl) compounds in which the two aminophenyl rings are joined to one another via an aliphatic group which has a carbocyclic radical, diamine compounds selected from compounds of the formulae (I), (II) and (III), oligomers/polymers which have at least two amide groups, saturated alicyclic compounds which have at least two primary amine groups and oligomers/polymers which comprise them in incorporated form, and mixtures thereof.

Abstract: Provided is a method for the production of a crosslinked molded body containing polyaryletherketone (PAEK), comprising the steps of (a) providing a mixture comprising a PAEK and a crosslinker, (b) preparing a molded body from the mixture, and (c) thermally treating the molded body at a temperature at which PAEK crosslinks, thereby obtaining the crosslinked molded body, and wherein the crosslinker is a di(aminophenyl) compound comprising two aminophenyl rings, wherein the two aminophenyl rings are joined together via an aliphatic group having a carbocyclic rest.

Abstract: An aliphatic polyketone compound including 85.0 to 99.5 wt % aliphatic polyketone and 0.5 to 15.0 wt % ultra-high molecular weight polyethylene. An aliphatic polyketone compound described where the ultra-high molecular weight polyethylene is 2.0 to 8.0 wt %. An aliphatic polyketone compound where the ultra-high molecular weight polyethylene has a molecular weight greater than 1.0 million g/mol.

Abstract: Provided is a method for the production of a crosslinked molded body containing polyaryletherketone (PAEK), comprising the steps of (a) providing a mixture comprising a PAEK and a crosslinker, (b) preparing a molded body from the mixture, and (c) thermally treating the molded body at a temperature at which PAEK crosslinks, thereby obtaining the crosslinked molded body, and wherein the crosslinker is a di(aminophenyl) compound comprising two aminophenyl rings, wherein the two aminophenyl rings are joined together via an aliphatic group having a carbocyclic rest.

Abstract: A method for production of a reactive polyurethane emulsion for use in impregnating and coating a textile fabric includes reacting polyols alone or in combination with at least one of diols and triols with a substoichiometric amount of diisocyanates so as to form medium-viscosity, OH-terminated prepolymers. The prepolymers are mixed with an external emulsifier. At least one of a diisocyanate, a triisocyanate and a polyisocyanate are added so as to bring about a crosslinking of the prepolymers.

Abstract: The present invention relates to lightfast and hydrolytically resistant molded polyurethane parts with excellent strength properties and a high temperature resistance and colorfastness to light at elevated temperatures for sophisticated applications in the sector of automobile interiors, which products are produced from a reaction mixture of aliphatic and/or cycloaliphatic compositions by using a cost-effective reaction injection molding method (RIM) or a casting method that requires only a short mold residence time. To this end, A) a composition composed of A1) an OH-terminated trifunctional prepolymer, A2) a polyol or a polyol combination, A3) at last one di- and/or trifunctional chain-lengthening agent and/or crosslinking agent with amine and/or hydroxyl groups, and A4) a catalyst system, and optionally A5) a stabilizer system, and optionally A6) at least one additive, and B) an isocyanate composition, are reacted.

Abstract: The invention pertains to a seal with at least one sealing lip that can be pressed against a surface to be sealed of a machine element to be sealed in the radial direction by means of an annular power transmission element. The power transmission element has an effective diameter that can be varied on both sides in the radial direction with the aid of an adjusting mechanism.

Abstract: A diaphragm pump for pumping a fluid, includes a flexible diaphragm which contains magnetically hard or soft particles and is actuated by an electromagnetic actuator. The diaphragm pump having a housing having an interior space containing two pump chambers which are separated by the diaphragm, and in that the diaphragm is actuated by two opposite electromagnetic actuators.

Abstract: A method for manufacturing a synthethic leather includes the steps of obtaining a polyurethane prepolymer from isocyantates and linear hydroxyl-terminated polyols having molecular weights of 500 to 5,000 g/mol, wherien the isocyanates include at least one of aliphatic, cyclophatic, and non-aromatic heterocyclic di- and or tri-isocyanates. A first aqueaous dispersion of the polyurethane prepolymer is provided and mixed with a second aqueous dispersion or solution of a catalyst and at least one cross-linking constituent so as to create a mixture. The method further includes impregnating a textile fabric with the mixture and drying and reacting the prepolymers to completion at a temperature from 80 to 180° C. In addition, a synthetic letter manufactured according to the method.

Abstract: A thermoplastically processable polyurethane molding material which is composed of a blend of at least two thermoplastic polyurethane, with at least 5 percent by weight, as a component A, being composed of a thermoplastic polyurethane which is obtained by reacting one or a plurality of aliphatic polyols which have a molecular weight of 800 to 4000 g/mol and a hydroxyl number of 20 to 235 and which are selected from the group of polyadipates, polycaprolactones, polycarbonates, polytetrahydrofurans and corresponding copolymers or mixtures thereof with 1,6-hexamethylene diisocyanate and the chain-extending agent 1,6-hexanediol in an equivalent ratio of the 1,6-hexamethylene diisocyanate to the polyol of 1.5:1 to 14.

Abstract: A molded polyurethane body is free of by-products capable of migrating and has high light fastness as well as improved temperature stability.

Abstract: A molded polyurethane body is obtainable by reacting: a) one or more aliphatic polyols having a molecular weight of 450 to 6000 g/mol and a hydroxyl value of 10 to 235; b) with aliphatic and/or cycloaliphatic diisocyanates in an equivalent ratio of diisocyanate to polyol of 1.2:1.0 to 16.0:1.0; c) with diols as chain lengthening agents having a molecular weight of 60 to 450 g/mol, the NCO index formed from the quotient, which is multiplied by 100, of the equivalent ratio of isocyanate groups to the sum of the hydroxyl groups of polyol and chain lengthening agents lying within a range of 90 to 105; and d) with an at least bifunctional reaction component, which is suitable for subsequent cross-linking.

Abstract: A molded polyurethane body is free of by-products capable of migrating and has high light fastness as well as improved temperature stability.