Abstract:
Artificial stone which exhibits minimal visual change when exposed to weathering, UV light, and heat, is prepared by shaping and curing a crosslinkable composition based on crosslinkable organopolysiloxanes as a binder, at least 85% by weight of a filler component, the filler component containing at least 20% by weight of coarse grain mineral filler having grain sizes of 0.2 mm to 10 mm.
Abstract:
Hydrophilic, self-cleaning coating compositions and methods to make and use the compositions are disclosed. The coatings comprise perlite and/or expanded perlite that are activated with hydrophilic agents. The perlites when incorporated in paints provide hydrophilic, self-cleaning and/or biocidal property to the coating.
Abstract:
Polymer concrete compositions comprising a silane-modified polymer (SMP) composition which comprises a silylated polymer, an epoxy resin, e.g., an epoxy-terminated prepolymer, and a cure catalyst, e.g., tetraethyltetraamine, exhibit good adhesion to wet concrete.
Abstract:
A system for stopping in an opening a flow of a fluid, wherein the system comprises: a kneadable silicon based polymer for fitting in and/or onto the opening so as to block any flow of the fluid through the opening, wherein the silicon based polymer comprises fillers so that the density of the silicon based polymer is higher as compared to the density of the silicon based polymer that does not comprise these fillers, and a silicon based sealant for applying against a dried form of the silicon based polymer, wherein the silicon based sealant is vulcanizable under exposure to humidity.
Abstract:
The present invention relates to a sealed natural cut stone, the pores of which are permeable to water vapor but are impermeable to aqueous liquids, and a method for the production thereof and the use of such natural cut stones.
Abstract:
A material composition for play or modelling purposes includes a particulate material and a binder which is disposed as thin layers on the particles. The binder includes a hydroxy-terminated polymer cross-linked by a boron compound, in particular a silicon oil. The concentration of particles is 90-98 vol % of the finished composition: A method for producing the material composition includes placing the particles in a mixer, adding the hydroxyl-terminated polymer, in particular silicon oil, and distributing it as thin layers on the surfaces of the particles and, thereafter, adding a boron-containing cross-linking agent in solution and mixing so that a cross-linking of the polymer takes place and the viscosity increases.
Abstract:
Process for producing detachable dirt- and water-repellent surface coatings on articles, wherein during the coating process, hydrophobic particles are applied to the surface of the articles, thus generating a surface structure with elevations on that surface of the articles that has dirt- and water-repellent properties, which comprises suspending the hydrophobic particles in a solution of a silicone wax in a highly volatile siloxane, and applying this suspension to at least one surface of an article, and then removing the highly volatile siloxane.
Abstract:
An insulating structure comprising an aerogel composite fully enclosed by an envelope and sealed at a reduced pressure, said aerogel composite comprising at least one metal oxide matrix and a fibrous material incorporated therein, and where said insulating structure can bend to at least 90° and a bending radius of less than ½ inch without any substantial fracture.
Abstract:
Process for producing detachable dirt- and water-repellent surface coatings on articles, wherein during the coating process, hydrophobic particles are applied to the surface of the articles, thus generating a surface structure with elevations on that surface of the articles that has dirt- and water-repellent properties, which comprises suspending the hydrophobic particles in a solution of a silicone wax in a highly volatile siloxane, and applying this suspension to at least one surface of an article, and then removing the highly volatile siloxane.
Abstract:
Molding or coating materials, in particular coating substances for producing self-cleaning moldings or coatings, for example on facades and other building elements, which if they are exposed to rain or moving water from time to time, clean themselves and prevent permanent settlement of dirt particles and pollutants. In accordance with the invention that object is attained with molding or coating materials having the features set forth in the opening part of this specification, which are characterized in that the filler contained has an at least bimodal particle size distribution, wherein the one particle size range (A) has a mean particle diameter of at least 5 μm and the other particle size range (B) has a mean particle diameter of at most 3 μm and the weight ratio of the particles of the former particle size range (A) to the particles of the latter particle size range (B) is between 0.01:1 and 12:1 and the constituents of the dispersion arc so selected in respect of their hydrophilic properties that the static initial contact angle after 3 min equilibration is greater than 130°.