Abstract:
The present invention relates to a metal oxide support material containing nanoscaled iron-platinum group metal particles having a particle size in the range of 0.5 to 10 nm, whereas at least 70 % of all nanoscaled iron-platinum group metal particles are located on a outside surface layer of the metal oxide support material, whereas the outside surface layer has an averaged volume of less than 50 % based on the total volume of the metal oxide support material. In addition, the present invention relates to a process for preparation of such metal oxide support material containing nanoscaled iron-platinum group metal particles. Furthermore, the present invention relates to the use of metal oxides containing nanoscaled iron-platinum group metal particles as catalysts, for example as a diesel oxidation catalyst for the treatment of exhaust gas emissions from a diesel engine.
Abstract:
The present invention relates to a composition comprising an active ingredient soluble in water at 20°C at no greater than 10 g/L, and a hyperbranched polyester linked to a polar polymer comprising a polycondensate or a polymer comprising ethylene unsaturated monomers. The invention further relates to said hyperbranched polyester and to a method for the production thereof. The invention further relates to the use of the hyperbranched polyester for solubilizing the active ingredient in aqueous compositions.
Abstract:
The present invention relates to a highly elastic flexible polyurethane foam, which can be obtained my mixing a) polyisocyanate with b) at least one higher molecular compound comprising at least two reactive hydrogen atoms, c) hyper-branched polyester c1) of the type AxBy, wherein x is at least 1,1 and y is at least 2,1, and/or hyper-branched polycarbonate c2), d) low molecular chain lengthening agents if applicable and/or cross-linking agents, e) catalyst, f) propellant and g) additional additives if applicable. The present invention further relates to a method for producing said flexible polyurethane foam and to the use of the inventive flexible polyurethane foam in the production of furniture, mattresses, orthopedic products, car seats, and other upholstery in the automotive sector.
Abstract:
The invention relates to an open-cell polyurethane foam containing polyester and polyether structures with a density of 70 to 300 g/L, 1 to 20 cells/cm, an impact resilience of more than 30%, a strain at break of more than 200%, a tear propagation strength of more than 1.2 N/mm and a tensile strength of more than 200 kPa. The invention further relates to a method for producing open-cell polyurethane sponges and to their use as pipe cleaning sponges.
Abstract:
The invention relates to a method for producing highly-branched melamine polymers, according to which melamine with 1.5 to 4 mol of one or several diamines or polyamines per mol of melamine, said diamines or polyamines having at least two primary amino groups, is reacted in the presence of an acidic catalyst. According to the invention, up to 25 mol % of the diamines or polyamines can have three or more primary amino groups and up to 50 mol % of the diamines or polyamines can be substituted by amines with only one primary amino group.