...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7947767 | Electret materials Disclosed are electret materials with outstanding thermal and charge stability. The electret materials comprise a melt blend of a thermoplastic polymer and one or more hindered hydroxylamine ester compounds that comprise at least one moiety of the formula I | 05/24/2011 |
| 7767739 | Cyanato group-containing cyclic phosphazene compound and method for producing the same A phosphazene compound, which can effectively enhance flame retardancy without deteriorating mechanical properties of a resin molded product, and is also less likely to deteriorate thermal reliability and dielectric properties, is represented by the formula (1) show... | 08/03/2010 |
| 7691924 | Flame retardant thermoplastic resin composition The present invention relates to a flame retardant polycarbonate thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified vinyl-grafted copolymer, a phosphorous mixture of a cyclic phosphazene oligomer compound and a phosphate ester mo... | 04/06/2010 |
| 7666931 | Electret materials Disclosed are electret materials with outstanding thermal and charge stability. The electret materials comprise a melt blend of a thermoplastic polymer and one or more hindered hydroxylamine ester compounds that comprise at least one moiety of the formula I | 02/23/2010 |
| 7605200 | Boron loaded scintillator A scintillating composition for detecting neutrons and other radiation comprises a phenyl containing silicone rubber with carborane units and at least one phosphor molecule. The carborane units can either be a carborane molecule dispersed in the rubber with the aid ... | 10/20/2009 |
| 7517925 | Benzoxazines, thermosetting resins comprised thereof, and methods for use thereof In accordance with the present invention, there are provided novel benzoxazine compounds and thermosetting resin compositions prepared therefrom. Invention compositions are particularly useful for increasing adhesion at interfaces within microelectronic packages. In... | 04/14/2009 |
| 7449506 | Flame-retardant polycarbonate resin composition A flame retardant polycarbonate resin composition comprises 100 parts by weight of a polycarbonate resin (A), 0.01 to 3 parts by weight of a silicone compound (B) having a branched chain structure and organic functional groups, wherein said organic functional groups... | 11/11/2008 |
| 7358311 | Crosslinking of unsaturated polymers by the use of hydroxylamine-esters The instant invention relates to a process for crosslinking unsaturated polymer resins as e.g. unsaturated polyesters using hydroxyamine esters as radical source. Further aspects of the invention are a composition comprising unsaturated polymer resins as e.g. unsatu... | 04/15/2008 |
| 7351362 | Photochromic material A photochromic material comprising a styrene-based oligomer having a weight average molecular weight of from 200 to 6000 and a photochromic compound selected from the group consisting of spirooxazine derivatives and spiropyran derivatives. ... | 04/01/2008 |
| 7323502 | Flame retardant compositions Organic polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation of a synergistic mixture of (i) at least one compound selected from the group consisting of the (a) sterically hindered nitroxyl stabilizers... | 01/29/2008 |
| 7297734 | Process for preparing synergistic stabilizer mixtures The present invention describes a process for preparing a synergistic stabilizer mixture comprising the components of the general formulae (I), (II) and (III) in accordance with claim 1, characterized by the reaction of compounds of the formula (V) | 11/20/2007 |
| 7291679 | Recyclable polymer and process for production thereof A novel resin is provided which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by Structural Formula (1) below, and a process for producing the polymer:... | 11/06/2007 |
| 7291669 | Stabilized polyolefin compositions Polyolefin compositions comprising a particular hindered phenolic antioxidant selected from the group consisting of tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris-(3,5-di -tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene and the calcium salt of th... | 11/06/2007 |
| 7291683 | Compatible blends of thermoplastic molding compositions The present invention relates to compatible blends of, per se incompatible, thermoplastic molding compositions, to methods for the production thereof, and to the use of the blends according to the present invention to produce films, fibers and molded articles. ... | 11/06/2007 |
| 7288613 | N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith The present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open... | 10/30/2007 |
| 7285327 | White film for surface light source reflecting members A white film for a reflecting structure for surface light sources, which contains voids inside it and has a light stabilizer-containing coating film formed on at least one surface of it, is aged little with time and its brightness lowers little even when used for a ... | 10/23/2007 |
| 7261842 | Photochromic compositions, preparation thereof and articles made therefrom or coated therewith The present invention relates to novel cross-linkable or crosslinked photochromic compositions, articles made from or coated with the compositions and method of making the compositions. The compositions contain (i) at least one segmented or non-segmented polyurethan... | 08/28/2007 |
| 7247369 | Fluid repellent microporous materials Microporous articles formed by thermally induced phase separation from a diluent in combination with a thermoplastic polymer and a fluorochemical additive providing novel fluid repellent articles. Such articles are useful in clothing, barrier membranes, optical film... | 07/24/2007 |
| 7235663 | N-alkoxy-4,4-dioxy-polyalkyl-piperidines as radical polymerization inhibitors The present invention relates to selected glycidyl or carbonyl functional N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and ... | 06/26/2007 |
| 7230042 | Flame retardant polymer compositions containing hydroxylamine esters The instant invention pertains to a thermoplastic organic polymer containing a conventional flame retardant and a hydroxylamine ester, in particular a tetraalkyl piperidine hydroxylamine ester. Further aspects of the invention are the use of hydroxylamine esters as ... | 06/12/2007 |
| 7214742 | 2-hydroxyphenyl-s-triazine crosslinkers for polymer networks Compounds of the general formula I′ in which R1 is H, C1–C12alkyl; C5–C12cycloalkyl; C2–C18alkyl which is interrup... | 05/08/2007 |
| 7214729 | Flame retardant polymeric electrical parts Disclosed is a flame retardant lighting assembly comprising thermoplastic insulation, plugs and sockets. The thermoplastic resin is for example polypropylene homopolymer and comprises a synergistic combination of an N-alkoxyoxy hindered amine and a conventional orga... | 05/08/2007 |
| 7183661 | Epoxy-resin systems, which are resistant to aging, moulding materials, components produced therefrom and the use thereof Epoxy-resin systems resistant to aging, molded materials and components generated from them, and their utilization. An epoxy-resin system especially suitable in the application of casting-resin methods comprising an epoxide-containing A component based on a g... | 02/27/2007 |
| 7176260 | Soft nitrile medical gloves having improved glove relaxation properties The invention is the manipulation of the zinc oxide content and sulfur content of nitrile butadiene rubbers and selected vulcanization conditions that can be achieved economically with common production facilities. The manipulation of these components affects the re... | 02/13/2007 |
| 7162746 | Body form-fitting rainwear A non-terminated, multi-aperture body form-fitting rainwear is provided. In the rainwear, a first waterproof moisture vapor permeable hydrophobic layer couples to a first fabric layer. The first fabric layer faces the body and couples to a first side of the first wa... | 01/16/2007 |
| 7135973 | Tamper monitoring article, system and method A tamper monitoring article and system, and an associated method of making, installing and using the article and system. The article has an elongate body portion. The body portion has a first end portion that adheres to a second end portion, if present, or to a subs... | 11/14/2006 |
| 7133209 | Transparent molding composition for optical applications A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way t... | 11/07/2006 |
| 7128665 | Golf ball The present invention provides a yellow-colored golf ball which can be manufactured without polluting the production line with a yellow pigment, exhibits a glossy appearance, and has superior visibility in a cloudy weather, even in a rainy weather where the golf bal... | 10/31/2006 |
| 7094818 | Thermoplastic resin compositions containing mixtures of cyclic phosphazenes and phosphoric acid esters The present invention relates to a flame retardant polycarbonate thermoplastic resin composition that comprises a polycarbonate resin, a rubber modified vinyl-grafted copolymer, a phosphorous mixture of a cyclic phosphazene oligomer compound and a phosphoric acid es... | 08/22/2006 |
| 7084196 | Flame retardant compositions Polymeric substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation therein of a synergistic mixture of (i.) at least one compound selected from the group consisting of nitroxyl stabilizers, hydroxylamine stabilizers... | 08/01/2006 |
| 7026380 | Stabilizer mixtures A stabilizer mixture containing A) either (A1) at least one compound of the formula in which R1 is for example hydrogen or C1–C8alkyl; R2, R3, R5 and R... | 04/11/2006 |
| 7022390 | Polyester and polyamide compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, whe... | 04/04/2006 |
| 7008985 | Aerosol cement and valve for dispensing An aerosol solvent weld cement composition for joining ends of plastic pipe. The composition contains at least one polymer capable of welding the plastic pipes to each other, at least one solvent for the polymer, and at least one propellant for the polymer/solvent s... | 03/07/2006 |
| 7009007 | Recyclable polymer, process for production thereof, and recycling treatment thereof A novel resin is provided, which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by Structural Formula (1) [—P1—R—]n (... | 03/07/2006 |
| 7005460 | Two-step curable mixer-suitable materials The present invention relates to a multi-component system for making impressions which contains (a) at least one compound having at least two alkenyl groups; (b) at least one organohydrogenpolysiloxane; ... | 02/28/2006 |
| 6992124 | Polyolefin molding compound for producing calendered films/sheets The present invention relates to a synergistic additives mixture for producing calendered polyolefin articles, comprising A) at least one component from the group of peroxide-destroying phosphorus or sulfur compounds, ... | 01/31/2006 |
| 6949595 | Multi-layer golf ball with translucent cover A golf ball including a center, a translucent cover, and, optionally, at least one intermediate layer disposed between the center and the cover. The cover is preferably formed from a polyurethane composition or a reaction product of isocynate. The cover is further c... | 09/27/2005 |
| 6946517 | Stabilizer mixtures A stabilizer mixture containing (A) for example a compound of the formula (A-I) wherein R1 is hydrogen or C1-C4alkyl, R2 is a direct bond or C1 | 09/20/2005 |
| 6921433 | Aqueous dispersion of water-insoluble-colorant-containing particle and preparation process thereof, water-insoluble-colorant-containing particle and preparation process thereof, and ink An embodiment of the invention relates to an aqueous dispersion containing pigment-containing particles. The dispersion is an aqueous dispersion comprising particles containing a water-insoluble colorant dispersed in a water-containing medium, wherein the light-scat... | 07/26/2005 |
| 6908650 | Polyester and polyamide compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, whe... | 06/21/2005 |