Abstract:
Die Erfindung betrifft ein Verfahren zur Behandlung von mit Algen und/oder Pilzen befallenen Flächen, bei dem nach einer vorhergehenden Reinigung z.B. mit einem Hochdruckreiniger in einem vorzugsweise einmaligen Auftrag eine pastöse, hydrophobierende Creme aufgetragen wird, die 2,5 bis 12 Gew.-% einer gegen Algen und/oder Pilze hochwirksamen Kombination enthält.
Abstract:
A moldable refractory composition consisting essentially of defined quantities of liquid vehicle; ceramic fiber; inorganic binder derived from a colloidal dispersion; and organic binder which is a high molecular weight polar organic polymer; the liquid vehicle being a solvent for the organic binder and a non-solvent for the ceramic fiber; the composition having defined solid content, defined density, defined viscosity and defined modulus of rupture. Also described are a method of manufacture of the composition, and a method of forming a refractory moldable shape.
Abstract:
Cementing compositions, and methods of using such compositions in oil, gas and water well cementing operations to reduce fluid loss from the composition to the formation, incorporate certain copolymer salts, the copoly- mera being derived from N,N-dimethylacrylamide and 2- aaylamido-2-mathyl propane sulfonic acid or acid salt, having mole ratios of between 1:4 and 4:1 respectively and average molecular weights of between about 75,000 and about 300,000. The copolymer salts are made by neutralising the acid copolymer, or by using an acid salt monomer.
Abstract:
An accelerator for accelerating the rate of hydration of calcined gypsum is disclosed. The accelerator comprises calcium sulfate dihydrate particles and a starch. The starch has a cold water solubility of at least about 25% (e.g., at least about 35%) and a viscosity of about 25 Brabender Units (BU) or less when the starch is in a 30% aqueous slurry at 92° C. Also disclosed are a method of preparing an accelerator, method of hydrating stucco to form set gypsum, slurry, and method of making gypsum board.
Abstract:
The invention relates to a solution to be selectively applied to individual parts of the surface of dental ceramic(s) and a process for using the solution in the dental field. More specifically the invention relates to a solution comprising a) a solvent, b) an effect agent, and c) a complexing agent. The invention also relates to a kit comprising the solution and to a method of using the solution for selectively treating of parts of the surface dental ceramic(s). The invention also relates to a application instrument suitable for applying the solution.
Abstract:
A method for the production of a macroporous ceramic foam, wherein: (a) forming a ceramic slip comprising a substantially homogeneous mixture of a ceramic particulate, an organic binder in a liquid carrier, and optionally one or more surfactants, wherein at least one surfactant is present if the organic binder does not function as a surfactant, and wherein the ceramic slip preferably has a viscosity in the range of from 15 to 200 mPas−1; (b) foaming the ceramic slip; and (c) heating the foamed ceramic slip at a temperature sufficient to substantially burn out the organic binder. The macroporous ceramic foam is suitable for use in biomedical applications such as synthetic bones, tissue engineering scaffolds or drug delivery devices.
Abstract:
Thickener systems which are suitable for preparing thickener compositions, and which systems consists of (A) at least one anionic surfactant A and (B) at least one polymer B comprising at least one hydrophobic group and preferably at least one hydrophilic group, wherein the concentration of the polymer B in a thickener composition is below the overlap concentration c* of the polymer, along with processes for preparing such compositions and uses thereof.