| Bayer Material Science AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120123084 | DEVICE AND METHOD FOR DEGASSING SOLVENT-CONTAINING POLYCARBONATE SOLUTIONS - The invention relates to an apparatus and a process for devolatilizing solvent-containing polycarbonate solutions. By employing the inventive apparatus, polycarbonates with low residual values of volatile constituents are produced from solvent-containing polymer melts, which improved optical properties, especially yellowness index, with the aid of an apparatus combination of a flash devolatilizer and a vented extruder. | 05-17-2012 |
| 20120123020 | MECHANICAL PROPERTIES OF EPOXY FILLED WITH FUNCTIONALIZED CARBON NANOTUBES - The present invention deals with a methodology of incorporating carbon nanotubes (CNTs) into an epoxy matrix and thereby producing epoxy-based CNT nanocomposites. Both the pristine and ozonized CNTs are almost homogeneously dispersed into the resin by this approach. Compared with the pristine CNTs (p-MWCNTs), the ozonized ones (f-MWCNTs) offer considerable improvements on mechanical properties within the epoxy resin. | 05-17-2012 |
| 20120123009 | POLYESTER POLYOLS MADE OF ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID AND OLIGOALKYL OXIDES - The present invention relates to a method for producing a polyester polyol having a concentration of ether groups in the range from 9.0 mol/kg of polyester polyol to 22 mol/kg polyester polyol, characterized in that (i) in a first step (A) isophthalic acid, optionally in the form of a C | 05-17-2012 |
| 20120085659 | PROCESS AND APPARATUS FOR THE ELECTROLYSIS OF AN AQUEOUS SOLUTION OF HYDROGEN CHLORIDE OR ALKALI CHLORIDE IN AN ELECTROLYTIC CELL - In a process for chlorine-alkali electrolysis, use is made of an oxygen depletion cathode. The process is run with a high excess of oxygen. The oxygen needed for this is provided for a device of the gas separation, for example a VPSA plant or an air fractionation plant. The large quantities of oxygen produced lead to considerable costs of the process. According to the invention, the oxygen-rich atmosphere remaining after passing through the process is fed back into the device for gas separation as input gas. The device the gas separation is therefore operated with an oxygen-rich input gas and therefore produces a larger quantity of oxygen-rich gas, which in turn is fed to the oxygen depletion cathode. As a result of the circulation of the gas, the economy of the overall process is increased considerably. | 04-12-2012 |
| 20120068115 | HIGH MOLECULAR WEIGHT, RANDOM, BISPHENOL BASED COPOLY(PHOSPHONATE CARBONATE)S - Disclosed are random copoly(phosphonate carbonate)s with the high molecular weight and narrow molecular weight distribution exhibiting a superior combination of properties compared to prior art. | 03-22-2012 |
| 20110294934 | TWO-COMPONENT COATING COMPOSITIONS FOR FLEXIBLE COATINGS - The invention relates to coating systems for producing fast-drying flexible coatings which are based on aromatic allophanate group-containing prepolymers and aliphatic polyisocyanates and aminofunctional polyaspartic esters as the curing agents. | 12-01-2011 |
| 20110288204 | FUNCTIONALIZED POLYURETHANE POLYUREA DISPERSIONS - The present invention relates to aqueous polyurethane urea dispersions having integral functional groups and coating agents produced therefrom, to a method for the production thereof, and to the use thereof for producing coating agents. | 11-24-2011 |
| 20110269896 | MOLDED PARTS HAVING IMPROVED SURFACES - Moldings obtainable from compositions comprising
| 11-03-2011 |
| 20110236671 | METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW AMOUNTS OF DIOXANE WASTE - Polyester polyols are produced from at least one carboxylic acid hydride and diethylene glycol by a process in which the formation of 1,4-dioxane is suppressed. These polyester polyols are useful for producing polyurethane (PUR) and polyisocyanurate (PIR) foams and metal composite elements containing these PUR or PIR foams. | 09-29-2011 |
| 20110217502 | ANIONIC MODIFIED POLYURETHANE DISPERSIONS - The present invention relates to an aqueous polyurethane urea dispersion comprising a polyurethane urea polymer comprising structural units of the formula (I) | 09-08-2011 |
| 20110206908 | USE OF A PLASTIC FILM IN COLOUR LASER PRINTING - The present invention relates to the use of a plastic film as a printable medium in colour laser printing, to special plastic films for use in colour laser printing, and to their application in the production of security documents or valuable documents and plastic mouldings. | 08-25-2011 |
| 20110204286 | SYNTHETIC PHYLLOSILICATES NOT CAPABLE OF SWELLING FOR POLYMER PHYLLOSILICATE (NANO)COMPOSITES - The present invention relates to a process for the production of non-swellable phyllosilicate tactoids, comprising
| 08-25-2011 |
| 20110200801 | ID CARDS WITH BLOCKED LASER ENGRAVING WRITABILITY - The invention relates to layer structures for ID cards on which information can be written by laser engraving and which have an additional layer that is applied to the card body after the laser engraving and restricts or completely prevents subsequent writing on the card by means of laser engraving, and consequently prevents falsification of the identifying information contained, and relates to a method for blocking the laser engraving writability of layer structures on which information can be written by laser engraving. | 08-18-2011 |
| 20110193337 | FORGERY-PROOF SECURITY FEATURES IN SECURITY OR VALUE DOCUMENTS - The present invention relates to a laminar structure comprising: a first layer comprising a first plastic film which comprises a thermoplastic and a filler and a second plastic film comprising a thermoplastic and a filler; a second layer comprising a third plastic film which comprises a thermoplastic and a filler and a second plastic film comprising a thermoplastic and a filler; and a laser printed watermark disposed on at least one of the plastic films positioned between the first and second layers. | 08-11-2011 |
| 20110152416 | Flameproofed, Impact-Modified, Scratch-Resistant Polycarbonate Moulding Compositions With Good Mechanical Properties - The present invention relates to flameproofed, impact-modified, scratch-resistant polycarbonate (PC) compositions and moulding compositions with surface-modified, calcined kaolin as filler, which have good mechanical properties, good flowability and high chemical resistance. Furthermore, the present application relates to the use of the compositions for the production of mouldings. | 06-23-2011 |
| 20110139629 | ELECTRODE MATERIAL, ELECTRODE, AND METHOD FOR HYDROGEN CHLORIDE ELECTROLYSIS - An electrode material, an electrode and a process for hydrogen chloride electrolysis based on platinum metal as catalyst, in which the electrode material has a nanosize mixture of platinum particles and silver particles, is described. | 06-16-2011 |
| 20110104492 | HIGHLY EFFICIENT GAS PHASE METHOD FOR MODIFICATION AND FUNCTIONALIZATION OF CARBON NANOFIBRES WITH NITRIC ACID VAPOUR - The present invention relates to a method for the functionalization of carbon fibres using the vapour of nitric acid, carbon fibres thus modified and use thereof. | 05-05-2011 |
| 20110091839 | PROFILE BODY FOR DENTAL CLEANING - The present invention relates to a strand-like profile body for dental cleaning, wherein the cross-section of the profile body comprises a bottom section ( | 04-21-2011 |
| 20110077310 | HYDROPHILIC POLYURETHANE COATINGS - The present invention relates to the use of specific polyurethane coatings, wherein the polyurethane urea is terminated by a copolymer unit of polyethylene oxide and polypropylene oxide. | 03-31-2011 |
| 20110014139 | SUN PROTECTION COMPOSITIONS - The invention relates to sun protection compositions for applying to the skin, containing special polyurethanes and to the use of the above-mentioned polyurethanes for producing sun-protection products. | 01-20-2011 |
| 20110003918 | FLAMEPROOFED IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present disclosure relates to an impact-modified polycarbonate composition which comprise a first graft polymer containing silicone/acrylate composite rubber as the graft base, wherein the content of silicone rubber is 65-95 wt.% (based on the graft base), a second graft polymer containing a diene rubber, and phosphorus-containing flameproofing agent, the use of the polycarbonate compositions for the production of shaped articles and the shaped articles themselves. The compositions and moulding compositions according to the disclosure have an optimum combination of good flameproofing at thin wall thicknesses, good resistance to chemicals and hydrolysis and low melt viscosity. | 01-06-2011 |
| 20100310812 | METHOD FOR PRODUCING A POLYCARBONATE LAYERED COMPOSITE - The invention relates to a method for making a structure with at least a first polymer layer and a second polymer layer, each made from a polycarbonate polymer based on bisphenol A, between the polymer layers a component being arranged, comprising the following steps: a) the component is arranged on the first polymer layer or placed in a depression of the first polymer layer, b) the first polymer layer is coated on the side, on which or in which the component is arranged, at least in the region of the component with a liquid preparation comprising a solvent or a mixture of solvents and a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, c) optionally a drying step is made after step b), d) after step b) or step c), the second polymer layer is placed on the first polymer layer, covering the component, e) the first polymer layer and the second polymer layer are laminated with each other under pressure, at a temperature from 120° C. to 180° C. and for a defined time. | 12-09-2010 |
| 20100304093 | METHOD FOR PRODUCING A SECURITY AND/OR VALUABLE DOCUMENT WITH PERSONALISED INFORMATION - The invention relates to a method for producing a security and/or valuable document containing a polymer layer composite or consisting thereof, said polymer layer composite being formed from a polymer layer partial composite and a polymer cover layer and the polymer layer partial composite and/or the polymer cover layer containing a laser sensitive component, consisting of the followings steps: A) first personalized information is applied to the polymer layer partial composite by means of an inkjet printing method as a colored inkjet printed layer, B) the polymer cover layer is applied to the inkjet printed layer and is joined to the polymer layer partial composite by thermal lamination, and C) second personalized information is inscribed into the polymer layer composite of the security and/or valuable document, obtained in step B), by means of laser engraving. The invention also relates to a security and/or valuable document that can be produced according to said method. | 12-02-2010 |
| 20100301595 | METHOD FOR THE PRODUCTION OF A POLYCARBONATE LAMINATE - The invention relates to the use of a preparation comprising A) 0.1 to 20 wt % of a binding agent with a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, B) 30 to 99.9 wt % of an organic solvent or of a mixture of solvents, C) 0 to 10 wt %, referred to dry mass, of a dye or of a mixture of dyes, D) 0 to 10 wt % of a functional material or of a mixture of functional materials, E) 0 to 30 wt % of additive and/or auxiliary substances, or of a mixture of such substances, the relative amounts of the components A) to E) always totaling 100 wt %, as an ink jet printing dye. | 12-02-2010 |
| 20100291392 | METHOD FOR PRODUCING A POLYCARBONATE LAYERED COMPOSITE - The invention relates to a method for making a structure with at least a first polymer layer and a second polymer layer, each made from a polycarbonate polymer based on bisphenol A, and in between the first polymer layer and the second polymer layer an intermediate layer being arranged, comprising the following steps: a) the intermediate layer is applied at least on a partial region of the first polymer layer, b) optionally the intermediate layer is dried, c) the first polymer layer is coated on the side, on which the intermediate layer is arranged, with a liquid preparation comprising a solvent or a mixture of solvents and a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, the preparation covering the intermediate layer, d) optionally a drying step is made after step c), e) after step c) or step d), the second polymer layer is placed on the first polymer layer, covering the intermediate layer, f) the first polymer layer and the second polymer layer are laminated with each other under pressure, at a temperature from 120° C. to 230° C. and for a defined time. | 11-18-2010 |
| 20100279894 | BACTERIOPHAGES AND COATING MATERIAL FOR SURFACES - The present invention relates to a composition comprising bacteriophages and coating material for surfaces, characterized in that a first additional peptide is fused on proteins of the bacteriophage and furthermore a second additional peptide is fused on proteins of the bacteriophage. In addition, the present invention relates to a surface that has been coated with the composition and the use of the composition for coating surfaces. | 11-04-2010 |
| 20100266481 | PROCESSES FOR THE OXIDATION OF A GAS CONTAINING HYDROGEN CHLORIDE - Processes for the production of chlorine from a gas containing hydrogen chloride and carbon monoxide, which comprise the catalysed oxidation of the carbon monoxide as well as optionally further oxidizable constituents, with oxygen to form carbon dioxide in an upstream reactor under adiabatic conditions. | 10-21-2010 |
| 20100260985 | POLYMER LAYER COMPOSITE FOR A SECURITY AND/OR VALUABLE DOCUMENT - The invention relates to a method for producing a polymer layer composite that comprises a plurality of polymer layers and at least one polymer layer contains a laser-sensitive component, said method consisting of the following steps: A) first personalised information is applied to at least one of the polymer layers by means of an inkjet printing method as a coloured inkjet printed layer, B) the polymer layer with the coloured inkjet printed layer is then joined to the other polymer layers, the polymer layer with the coloured inkjet printed layer being arranged between two other polymer layers, C) second personalised information is inscribed into the polymer layer composite obtained in step B) by means of laser engraving. The invention also relates to a thus obtained polymer layer composite, a security and/or valuable document comprising a polymer layer composite of said type and to a method for producing a security and/or valuable document of said type. | 10-14-2010 |
| 20100249290 | FLAME-PROTECTED IMPACT-MODIFIED POLYCARBONATE COMPOSITIONS - The present invention relates to flame-protected impact-modified polycarbonate compositions, wherein the compositions are free of rubber-free polyalkyl (alkyl)acrylate. The present invention further relates to the use of the polycarbonate compositions in the production of moulded bodies, and to the moulded bodies themselves. | 09-30-2010 |
| 20090311512 | Radiation-Emitting Component - An organic radiation-emitting component ( | 12-17-2009 |
| 20090168833 | METHOD AND DEVICE FOR TESTING THE FIRE HAZARD OF A MATERIAL - The invention relates to a method and a device for testing the fire hazard of a material. According to one embodiment of the method, a plane region of the surface of a specimen made of the material is brought in contact for at most a predetermined contact time with a glow wire, which has been heated to a predetermined temperature. Image data of the specimen are furthermore acquired by at least a first camera at least while the specimen is in contact with the glow wire. Image processing of the acquired image data of the specimen is furthermore carried out, preferably in realtime, ignition of the specimen by the glow wire being detected if applicable. A first duration is then determined, which corresponds to the length of time between the application of the tip of the glow wire on the specimen and the ignition of the specimen. Furthermore, according to one embodiment of the invention, a second duration may if applicable be determined by means of the image processing of the acquired image data of the specimen, the second duration corresponding to the length of time between the application of the tip of the glow wire on the specimen and the end of the ignition of the specimen. The method and the device are suitable in particular for carrying out tests to assess the fire hazard of materials according to the standards EN 60695-2-10, -12 and -13. | 07-02-2009 |
| 20090140215 | CATALYST FOR PRODUCING CARBON NANOTUBES BY MEANS OF THE DECOMPOSITION OF GASEOUS CARBON COMPOUNDS ON A HETEROGENEOUS CATALYST - The present invention relates to a process for the production of carbon nanotubes, in particular those having a diameter of 3-150 nm and an aspect ratio of length:diameter (L:D)>100, by decomposition of hydrocarbons on a heterogeneous catalyst which comprises Mn, Co, preferably also molybdenum, and an inert support material, and the catalyst and the carbon nanotubes themselves and the use thereof. | 06-04-2009 |
| 20090020478 | PROCESSES FOR THE REGENERATION OF AN ANION EXCHANGER LOADED WITH HEXACHLOROSTANNATE - Processes comprising: providing an anion exchanger at least partially loaded with hexachlorostannate; and contacting the at least partially loaded anion exchanger with a 1 to 10 wt. % hydrochloric acid solution to regenerate the anion exchanger. | 01-22-2009 |
| 20090015837 | METHOD AND APPARATUS FOR CARRYING OUT A BURNING TEST ON A TEST PIECE - The image data capture of a test piece is performed with at least one first camera. A reference point of the test piece is determined by processing the image data recorded with the at least one first camera. A burner is positioned at a prescribed first distance from the reference point for the flame exposure of the test piece. At least one second camera may also detect whether the test piece exposed to a flame is burning or incandescing. At least one third camera may be used for monitoring the burner flame and at least one fourth camera may be used for determining whether the test piece drips while burning. Furthermore, at least one detector may used for detecting whether the drips ignite a pad of wadding positioned under the test piece. | 01-15-2009 |
| 20080257749 | Method For Improving The Performance of Nickel Electrodes - The invention relates to a method for improving the performance of nickel electrodes in alkali chloride electrolysis by adding water-soluble platinum compounds to the catolyte. | 10-23-2008 |
| 20080200734 | CRYSTALLIZATION PROCESSES FOR PRODUCING BISPHENOLS - Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7% are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7%; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70° C. in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40 to 50° C. in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total dwell time of the product mixture in the crystallization is more than 4 hours. | 08-21-2008 |
