Abstract: Laser-markable molding compositions, molding produced therewith and method of marking the same, wherein the molding compositions comprise: (a) at least one semicrystalline thermoplastic; and (b) at least one particulate additive selected from the group consisting of (i) light-sensitive salt compounds, (ii) inorganic oxides having an average particle diameter of less than 250 nm, and combinations thereof; wherein the light-sensitive salt compounds comprise compounds having two or more captions, wherein at least one of the two or more captions is selected from the group consisting of Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ag, Sn, Sb, La, Pr, Ta, W, and Ce; and wherein at least another of the two or more captions is selected from the group consisting of elements of periods 3-6 of main groups II and III, elements of periods 5-6 of main group IV, elements of periods 4-5 of transition groups III-VIII, and the lanthanoids.

Abstract: The invention relates to moldings or molding compositions composed of polyoxymethylene and featuring very low formaldehyde emission, comprising from 0.1 to 50.0% by weight of a tribological modifier, from 0.01 to 0.5% by weight of a cyclic stabilizer which contains at least one nitrogen atom in the ring, and from 0.05 to 1% by weight of at least one ester composed of a polyhydric alcohol and of at least one (C10-C32) fatty acid, and also to their production and use.

Abstract: Laser-markable molding compositions, molding produced therewith and method of marking the same, wherein the molding compositions comprise: (a) at least one semicrystalline thermoplastic; and (b) at least one particulate additive selected from the group consisting of (i) light-sensitive salt compounds, (ii) inorganic oxides having an average particle diameter of less than 250 nm, and combinations thereof; wherein the light-sensitive salt compounds comprise compounds having two or more cations, wherein at least one of the two or more cations is selected from the group consisting of Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ag, Sn, Sb, La, Pr, Ta, W. and Ce; and wherein at least another of the two or more cations is selected from the group consisting of elements of periods 3-6 of main groups II and III, elements of periods 5-6 of main group IV, elements of periods 4-5 of transition groups III-VIII, and the lanthanoids.

Abstract: Polyoxymethylene with improved resistance to acids, comprising A from 84 to 99.79% by weight of at least one polyoxymethylene homo- or copolymer, B from 0.1 to 5% by weight of at least one polyalkylene glycol, C from 0.1 to 10% by weight of zinc oxide, and D from 0.01 to 1% by weight of one or more nitrogen-containing costabilizers, where the total of the percentages by weight of components A to D is 100%. This polyoxymethylene is particularly advantageous when used for producing moldings for use in contact with aggressive acids or with aggressive acid-containing cleaning agents, in particular for applications in the sanitary sector or the white goods sector.

Abstract: The invention relates to moldings or molding compositions composed of polyoxymethylene and featuring very low formaldehyde emission, comprising from 0.1 to 50.0% by weight of a tribological modifier, from 0.01 to 0.5% by weight of a cyclic stabilizer which contains at least one nitrogen atom in the ring, and from 0.05 to 1% by weight of at least one ester composed of a polyhydric alcohol and of at least one (C10-C32) fatty acid, and also to their production and use.

Abstract: The present invention relates to a polyoxymethylene molding composition comprising:

Abstract: It has been found that, in particular, a molding composition comprising (A) from 80 to 99.8% by weight of a polyoxymethylene homopolymer or copolymer, (B) from 0.1 to 10% by weight of a polyalkylene glycol and (C) from 0.1 to 10% by weight of a zinc oxide, where the sum of the percentages by weight of components (A) to (C) in each case gives 100%, is suitable for the production of moldings for applications with direct contact with diesel fuel or gasoline. Moldings produced therefrom satisfy the increased demands regarding resistance to aged fuels, diesel fuel at high long-term service temperatures and aggressive gasoline.