Abstract: The present invention relates to thermoplastically processable polyurethane elastomers (TPU) with tensile strengths of >35 MPa (measured in accordance with EN ISO 527-3), with shrinkages of <3% and with self-extinguishing properties based on the use of at least one flameproofing agent which can be built in, a process for their preparation and their use.

Abstract: This invention relates to ethylenically unsaturated macromers which contain reactive unsaturation, and to a process for preparing these ethylenicallly unsaturated macromers which contain reactive unsaturation. The process of preparing these ethylenically unsaturated macromers comprises reacting a monofunctional compound which corresponds to a specific formula with at least one alkylene oxide, in the presence of at least one alkoxylation catalyst. The ethylenically unsaturated macromers correspond to the formula set forth herein. This invention also relates to preformed stabilizers comprising ethylenically unsaturated macromers, to a process for preparing these preformed stabilizers, to polymer polyols comprising these preformed stabilizers, and to a process of preparing these polymer polyols which comprise these preformed stabilizers. Polymer polyols comprising ethylenically unsaturated macromers and a process for their preparation are also described.

Abstract: A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown polyurethane foam suitable for a wide variety of applications including spray roofing, insulation, etc. The preferred composition for preparing a polyurethane foam comprises an isocyanate component and a polyol component, wherein the polyol component preferably comprises a combination of Mannich polyol, polyester polyol, and polyether polyol. Preferably, the composition includes water to act as a blowing agent and a metal salt catalyst to assist in the reaction. Preferably, the isocyanate index is between about 1.2 and about 2.0. Additional catalysts, surfactants, flame retardants, and blowing agents may also be used depending upon the desired finished product.

Abstract: Described is an electrolytic capacitor that includes: (a) a layer of an oxidizable metal; (b) a layer of an oxide of the oxidixable metal; (c) a solid electrolyte; and (d) a plurality of contacts. The solid electrolyte includes a polythiophene having recurring units represented by the following formulas (I-a) and/or (I-b), Also described are processes for producing electrolytic capacitors, and conductive layers that include such polythiophenes.

Abstract: A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.

Abstract: A chopped radiation source composed of a radiation source component, a chopping component and an optical fiber connector component. Each of these components is arranged within a housing in a manner such that the elements of each of these components will not move in an unintended manner during use.

Abstract: High purity refractory metals, valve metals, refractory metal oxides, valve metal oxides, or alloys thereof suitable for a variety of electrical, optical and mill product/fabricated parts usages are produced from their respective oxides by metalothermic reduction of a solid or liquid form of such oxide using a reducing agent that establishes (after ignition) a highly exothermic reaction, the reaction preferably taking place in a continuously or step-wise moving oxide such as gravity fall with metal retrievable at the bottom and an oxide of the reducing agent being removable as a gas or in other convenient form and unreacted reducing agent derivatives being removable by leaching or like process.

Abstract: The invention relates to the use of special mixtures of at least two polycarboxylic acids as crosslinker components for thermally curing powder-lacquer binding agents having groups that are capable of reacting with carboxyl groups. The mixtures include at least two polycarboxylic acids each melting above 95° C. and having up to 20 carbon atoms and consist of at least 5 wt. %, of the polycarboxylic acid with the lowest melting point and at least 10 wt. %, of the polycarboxylic acid with the highest melting point of all polycarboxylic acids present in the mixture to at least 5 wt. %. Additionally, the polycarboxylic acid mixture is a solid below 40° C. and a liquid above 160° C.

Abstract: The present invention relates to novel blocked, elimination-free polyurethane (PUR) crosslinking agents, to a process for their preparation and to their use as starting components for the production of polyurethane plastics, especially as crosslinking agents for thermally crosslinkable powder coatings.

Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.

Abstract: Solvent-based, dual cure coatings incorporating thermally curable blocked polyisocyanates, which also contain unsaturated linkages, and a method for preparing these coatings. The unsaturated linkages, such as acrylate groups, can be crosslinked by free-radical mechanisms such as UV curing.

Abstract: A flame resistant poly(ester)carbonate composition is disclosed. The composition contains at least one phosphorus-silicon compound, the compound has a phosphorus content of 1 to 20% and a silicon content of 1 to 20%, and is characterized in that its weight loss (assessed by thermogravimetric analysis under nitrogen inert gas at a heating rate of 20° K/min,) at 280° C. is less than 30%. The preferred phosphorus-silicon compound is produced by thermal oligomerization from phosphorylated silanes.

Abstract: The invention relates to a method of producing rebonded foam blocks in a box mould having a base, a plurality of mutually adjacent mould side walls standing thereupon and a plunger movable in the direction of the base, in which at least one of the mould side walls may be swiveled about a substantially horizontal swivel axis mounted on the base between an outwardly directed position and a substantially vertical position, the method involving mixing the foam flakes with a binder, swiveling at least one of the mould side walls outwards such that the cross-sectional area of the box mould increases from the bottom upwards, introducing the foam flakes into the box mould, adjusting the at least one mould side wall so that the cross-sectional area of the box mould is substantially constant over its height, compressing the foam flakes by means of the plunger to the desired density or foam block height, thereby bonding together the foam flakes and removing the finished foam block from the mould.

Abstract: A method of making a plastic molding is disclosed. The multi-step method entails applying a metallic layer 20 to 150 nm thick to a translucent plastic film having a thickness of 50 to 750 ?m, removing part of the metallic layer, and applying to the metallized side of the film an adhesive layer 5 to 50 ?m in thickness to obtain a product, and injection molding the product with a translucent thermoplastic. The plastic molding thus made is suitable for the preparation of keys, fittings, trim strips, reflectors, keyboards, casings, shields, advertising panels and packaging items and identification cards.

Abstract: The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to isocyanates, does not deplete the ozone layer and has a boiling point below 55° C. and a reaction product of at least one compound with an aromatic ring, at least one aldehyde or ketone and at least one primary or secondary amine. This polyol formulation is reacted with an isocyanate, optionally with other commonly used additives, to produce rigid flame resistant foams.

Abstract: A continuous process for mixing polymer melts with additives, in particular polycarbonate melts with additives in liquid form, in solution or in dispersion is described. The additives are added to a main stream of polymer melt and are then mixed, preferably directly, with the main stream in a static mixer.

Abstract: The invention relates to an installation and a process for the production of foam in a continuous block foam process in which the height of a foam-forming mixture along a conveyor is measured and a correcting variable as a function of deviation of the actual height risen from the standard height is determined.

Abstract: A radiation curable coating composition that includes from about 5 to about 70% by weight of the reaction product of i) one or more polyisocyanates, where at least 10 equivalent percent of the isocyanate groups are in the form of uretdione groups, and ii) one or more hydroxy functional lactone ester (meth)acrylates. The amount of component i), on an isocyanate equivalent basis, is equal to the amount of hydroxy equivalents of hydroxy containing materials in the composition. The composition can be used to coat substrates by coating at least a portion of the substrate with the above-described coating composition and subjecting the coated substrate to radiation.

Abstract: The present invention provides a process for preparing cyclic 1,3-keto esters in the absence of solvent, using solid-state or high viscosity reactors.

Abstract: An aromatic dihydroxy compound conforming to formula 1 is disclosed. Also disclosed are (co)polycarbonates derived from the compound. The novel (co)polycarbonates are characterized by their reduced water uptake and improved flowability.