Abstract:
Thermoplastic moulding compositions, containing: A) 10 to 99.8 percent by weight of a thermoplastic polyamide, B) 0.1 to 60 percent by weight of red phosphorus, C) 0.01 to 4 percent by weight of a Cu-(I) or Ag-(I) salt or oxide or complex or mixtures thereof, D) 0 to 40 percent by weight of an impact resistance modifier, E) 0 to 60 percent by weight of further additives, wherein the total of the weight percentages A) to E) is 100%.
Abstract:
The present invention relates to complex security elements based on recording materials for optical elements with refractive index modulation, in particular, holograms, which are subsequently coated with specific metallic nano-shaped metal particles, a method for their manufacture, in particular on a paper or on a plastic substrate and a security product obtainable using the security element. A further aspect of the invention is the use of such a security element for the prevention of counterfeit or reproduction of a document of value.
Abstract:
A process for the preparation of a microcapsule composition, wherein the shell of the microcapsules is essentially made of silica and the core comprises at least one lipophilic component, comprising the steps of: a) providing an aqueous dispersion comprising at least one lipophilic component (A) and b1) adding to the aqueous dispersion provided in step a) a water glass solution and an acid, or b2) adding to the aqueous dispersion provided in step a) a silicic acid solution and a base, wherein the addition is effected such that the pH of the mixture resulting during the addition of the water glass solution in step b1 ) or during the addition of silicic acid solution in step b2) is kept in a range of 6 to 9.
Abstract:
Process for water-wetting oil-wet surfaces by applying an aqueous formulation comprising at least one wettability modifier which is a water-soluble ester of an alkoxylated saccharide to the oil-wet surface. The oil-wet surfaces may be any hydrophobic surfaces such as the rocks of subterranean oil-bearing formations.
Abstract:
The present invention relates to membrane electrode units (MEU) for high temperature fuel cells having an improved stability and a process for their manufacture.
Abstract:
A novel proton-conducting polymer membrane based on polyazole polymers which, owing to their outstanding chemical and thermal properties, can be used widely and are suitable in particular as polymer electrolyte membrane (PEM) for producing membrane electrode assemblies or so-called PEM fuel cells.
Abstract:
The use of formulations comprising (a1) at least one copolymer obtainable through copolymerization of (a1.1) at least one N-vinylamide, (a1.2) vinyl acetate, (a1.3) at least one polyether, (a1.4) optionally at least one further comonomer, (a2) at least one alkoxylate of the general formula (I) R 1 -(OCH 2 CHR 2 ) m OR 3 where the variables are each defined as follows: R 1 is C 8 -C 24 -alkyl, linear or branched, R 2 is C 1 -C 10 -alkyl, in each case the same or different, linear or branched, or hydrogen, R 3 is hydrogen or C 1 -C 4 -alkyl, linear or branched, m is 1 to 100, in formulations for machine dishwashing.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung eines pulverförmigen Trockenmörteladditivs, welches Kalziumsilikathydrat und eines oder mehrere Rheologieadditive ausgewählt aus redispergierbaren Polymerpulvern und / oder modifizierten Polysacchariden enthält, dadurch gekennzeichnet, dass das oder die Rheologieadditiv(e) in pulverförmiger Form mit einer wässrigen Suspension von Kalziumsilikathydrat in Kontakt gebracht wird. Weiterhin sind betroffen Trockenmörteladditive, welche aus dem erfindungsgemäßen Verfahren erhältlich sind, deren Verwendung in Baustoffmischungen und Baustoffmischungen enthaltend die Trockenmörteladditive.
Abstract:
The present invention relates to a polyurethane coating having a hardness of 50 to 90 Shore A, obtainable by mixing (a) polyisocyanate having an average functionality of 2 to less than 2.5, (b) polymeric compounds having isocyanate-reactive groups, (c) catalysts, comprising trimerization catalyst, optionally (d) chain extenders, and (e) auxiliaries and/or additives to give a reaction mixture, applying the reaction mixture to an article, and curing the reaction mixture to give the polyurethane coating, the polyisocyanate component (a) and the components (b) to (e) being reacted in amounts such that the isocyanate index is 103 to 200. Further provided with the present invention are a process for producing an abrasion-resistant polyurethane coating, and a steering wheel comprising an abrasion-resistant polyurethane coating.