Abstract: A process for the preparation of ceramic dental implants having a surface for improving osseointegration, wherein the following process steps are performed for preparing such surface: —preparation of a ceramic blank having a surface; —treating at least one partial area of the surface of the ceramic blank by an ablating process that produces a surface roughness of the surface that corresponds to a treatment by sand blasting under a blasting pressure of from 1.5 bar to 8 bar and with a grain size of the blasting media used for sand blasting of from 30 ?m to 250 ?m; —followed by a chemical treatment of said at least one partial area of the surface of the ceramic blank treated with the ablating process; —followed by a thermal treatment of the blank whose surface has been subjected to said ablating and chemical treatments at temperatures of >125° C. > A ceramic body obtainable by the process according to the invention is also described.

Abstract: The invention relates to a novel non-crystallizing methacrylate and a method for the production thereof. The invention further relates to a photopolymer formulation comprising the methacrylate of the invention as well as to use of said photopolymer formulation for producing holographic media.

Abstract: The subject matter of the invention is a method for producing illuminated, holographic media comprising a photopolymer formulation having the adjustable mechanical modulus GUV. A further subject matter of the invention is an illuminated, holographic medium that can be obtained by means of the method according to the invention.

Abstract: The invention relates to a method for producing a holographic film, wherein a photopolymer formulation comprising matrix polymers, writing monomers, photoinitiator system, and optionally auxiliary materials and additives is provided, the photopolymer formulation is applied as a film to the surface of a substrate, and the film is dried, wherein a photopolymer formulation having a plateau module G0 of =0.03 MPa is used. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention.

Abstract: The invention relates to a method for producing holographic media, wherein a photopolymer formulation comprising matrix polymers, writing monomers, a photoinitiator system, and optionally auxiliary materials and additives as components is provided, the photopolymer formulation is applied as a coating on the surface of a carrier film and the photopolymer formulation is dried on the carrier film at a temperature XX<T>YY DEG C., wherein only those compounds having TGA 95 values >100 DEG C. and at least 30 DEG C. above the temperature T are selected as components for the photopolymer formulation. The invention further relates to a holographic medium that can be obtained by means of the method according to the invention.

Abstract: The invention relates to novel specially substituted urethane acrylates based on tris(p-isocyanatophenyl)thiophosphate having a high refractive index and reduced double bond density, and to a method for the production and use thereof.

Abstract: The invention relates to a method for producing holographic films, in which a photopolymer formulation is provided which comprises as constituents matrix polymers, writing monomers, a photoinitiatior system, optionally a non-photopolymerizable component and optionally catalysts, radical stabilizers, solvents, additives and other auxiliaries and/or additives. The photopolymer formulation is applied in a planar manner and in the form of a film on a support film and the photopolymer formulation is dried on the support film at a temperature 60<T<120 DEG C, wherein only compounds are selected as components for the photopolymer formulation, the TGA 95 values of which are >100 DEG C and are above the temperature T by at least 30 DEG C, and a photopolymer formulation having a plateau module of =0.030 MPa is used.

Abstract: Urethane acrylates of the general Formula (I), corresponding salts, solvates or solvates of a salt thereof: wherein R1, R2, R3, R4 and R5 each independently represent a substituent selected from the group consisting of hydrogen, halogens, C1-6-alkyls, trifluoromethyl, C1-6-alkylthios, C1-6-alkylselenos, C1-6-alkyltelluros, and nitro groups, with the proviso that at least one of R1, R2, R3, R4 and R5 is not hydrogen; R6 and R7 each independently represent a substituent selected from the group consisting of hydrogen and C1-6-alkyls; and A represents a saturated or unsaturated or linear or branched C1-6-alkyl radical or a polyalkylene oxide radical having 2-6 ethylene oxide or propylene oxide units; processes for producing and methods of using the same.

Abstract: A process for the preparation of a ceramic molded part from a suspension/dispersion with a solids content and a fluid content by depositing solids content at the periphery of a porous self-supporting support that is at least partially immersed in the suspension/dispersion and has the same shape as the molded part to be prepared, but with a reduced size, wherein: the solids content contains oxide-ceramic particles; the porous self-supporting support is detachably connected with a discharge in a zone that is not immersed in the suspension/dispersion; the suspension/dispersion is moved towards the porous self-supporting support by means of a positive pressure difference between a pressure prevailing in the suspension/dispersion and a pressure prevailing in the discharge; wherein the fluid content of the suspension/dispersion enters in the porous self-supporting support with depositing solids content at the periphery of the porous self-supporting support.

Abstract: An elbow bracket for cables or pipes, supported by a structure of an aeronautical device, in which a reinforcing rib of the elbowed main plate is not assembled with the elbowed main plate by welding but by tightening following a twisting of end-pieces traversing slots of the main plate and causing an outer face of the plate to be trapped against an upper face of oblong slits partially cutting into the end-pieces. The support is faster to construct, and has sufficient resistance.

Abstract: A dental implant for a prosthetic appliance comprising a region (I) designed for permanent insertion into a jawbone and a connection region (II) adjacent thereto that bears the prosthetic appliance and is characterized in that said connection region (II) is prefabricated and consists of at least one ceramic region (3) having a core region (3a), and at least one external region (4); said core region (3a) is at least partially surrounded by said external region (4); said at least one external region (4) is made of a workable material for the preparation of a prosthetic appliance; the ceramic material of said ceramic core region (3) has a hardness that is greater than that of the external region (4); and the material of the external region (4) has a hardness equal to or less than that of the range of natural enamel.

Abstract: The invention relates to a method for producing novel photopolymers on the basis of prepolymer-based polyurethane compositions that are suitable for producing holographic media, in particular for the visual display of images.

Abstract: The invention relates to applying novel photo polymers based on special urethane acrylates as writing monomers in printing methods which are suitable for producing holographic media, in particular for the visual display of images.

Abstract: The present invention relates to a photopolymer formulation containing chemically crosslinked matrix polymers, writing monomers and a photoinitiator system, wherein the photoinitiator system contains a HABI, a dye attuned to the HABI and having an absorption maximum in the range of 400-800 nm and a hydrogen donor. The present invention further relates to a process for producing exposed holographic media with the above photopolymer formulation.

Abstract: The present invention relates to novel self-developing films for incorporation of volume holograms by exposure, a method for production thereof and the use thereof.

Abstract: The present invention relates to a polyurethane composition comprising A) a polyisocyanate component comprising an exclusively diol-based NCO-terminated polyurethane prepolymer, wherein the NCO groups are bonded in a primary manner, B) an isocyanate-reactive polymer, C) a compound having groups which react by polymerizing with an ethylenically unsaturated compound under the action of actinic radiation (radiation-curing groups) wherein the compound is free of NCO groups, D) a free-radical stabilizer, E) a photo initiator, F) optionally a catalyst, G) optionally assistants and additives.

Abstract: The invention relates to holographic media containing specific photopolymers, a process for the production thereof, and unsaturated glycidyl ether acrylate urethanes as writing monomers which are suitable for the preparation of photopolymers.

Abstract: A dental sintering furnace for sintering ceramic dental elements comprises a receiving chamber (10) for receiving the dental element (14) to be sintered. The receiving chamber (10) is surrounded by an electric heating unit (24) for heating the dental elements (14) to a pre-sintering temperature. Further, the receiving chamber (10) is surrounded by an annular microwave conductor (30) designed as a hollow conductor. On an inner wall (46), the microwave conductor comprises a plurality of decoupling slots (48) to decouple the microwaves in the direction of the receiving chamber (10). In a method for sintering ceramic dental elements, all the dental elements are first heated to a pre-sintering temperature by means of the electrical heating unit (24) and then the dental elements (14) heated to the pre-sintering temperature are irradiated by microwave radiation for coupled heating of the dental elements (14) to the sintering temperature.

Abstract: The invention relates to control of a battery, permitting a reduction in the number of components of the battery. The battery comprises several modules (2a, . . . , 2n), each module comprising a charge limiting circuit (4). When a module is detected as defective, the charge limiting circuit (4) carries out a command for the discharge of said defective module, by formation of a short-circuit path. The battery can subsequently be used without functional hindrance by the defective module.

Abstract: The invention proposes a system for dosing a food product onto an object comprising a dosing device (1) for co-extrusion of at least 2 food materials at the same time to form a multi-component food product (30), said dosing device (1) comprising a core element (2) housing at least a first and a second supply (5a, 5b), said first supply (5a) having at least one orifice (6) connected to an extrusion channel (7) which is positioned coaxially to an extrusion channel (8) of the second supply (5b), and a cylindrical tube element (3) relatively rotatable to and enclosing the core element (2), having at least one aperture (3a), wherein said aperture (3a) is designed to be selectively brought into a coaxial position to the extrusion channels (8,7) of the first and second supplies (5a, 5b) by rotating the cylindrical tube element (3), allowing a co-extrusion of the food materials introduced into the supplies (5a, 5b) of the core element.