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| Number | Title | Issue Date |
| 7008526 | Processes for producing coke, artificial graphite and carbon material for negative electrode of non-aqueous solvent type secondary battery and pitch composition used therefor When a pitch composition prepared by mixing 100 parts by weight of mesophase pitch with 10 to 1,000 parts by weight of coal tar pitch, is heat-treated at a temperature of 500° C. or higher, it is possible to produce a high-density coke at a high yield while avoidin... | 03/07/2006 |
| 6964798 | Multi-layered polymer based thin film structure for medical grade products A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a firs... | 11/15/2005 |
| 6872692 | Synthetic hydrocarbon fluid A synthetic lubricant base stock is provided having a kinematic viscosity at 100° C. of from 5 to about 300 cS and a VI greater than 100. The base stock comprises random co-oligomers of an alpha olefin or mixtures thereof and an olefinic substituted aromatic compou... | 03/29/2005 |
| 6808542 | Photoluminescent markers and methods for detection of such markers The invention provides photoluminescent markers consisting essentially of fluorene copolymers, which are colorless or nearly colorless to the naked eye and exhibit strong photoluminescence between about 380-800 nm upon exposure to ultra-violet radiation or laser lig... | 10/26/2004 |
| 6713438 | High performance engine oil High performance engine oils and other liquid lubricants comprise a liquid lubricant basestock of low viscosity from 1.5 to 12 cSt (100C) with two dissolved polymer components of differing molecular weights. The basestock is preferably a single PAO or blend of PAOs ... | 03/30/2004 |
| 6608155 | Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed ... | 08/19/2003 |
| 6528694 | Admixture composition for mixing with lubricant In order to provide an improvement in the mechanical shear force resistance of the admixture composition, comprising an oil solution of polyisobutylene, containing polyisobutylene having a viscosity average molecular weight in a range of 350,000 to 2,100,... | 03/04/2003 |
| 6214779 | Lubricating oil or lubricating oil composition and fuel oil composition The present invention is directed towards a lubricating oil comprising a random copolymer of an -olefin/aromatic vinyl compound, wherein the copolymer has a viscosity falling within a specific range and comprises ethylene, an aromatic vinyl compoun... | 04/10/2001 |
| 6215033 | Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers: blends with lower molecular weight components The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of t... | 04/10/2001 |
| 6133490 | Dispersant for pigments for aromatic polymers A dispersant for pigments for aromatic polymers, which is superior not only in the ability of dispersing pigments in aromatic polymers but also in attaining high transparency and stability of the resulting color, while avoiding grafting step and attaining... | 10/17/2000 |
| 6103676 | Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers: hydroformylation/reductive amination reaction products The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of tw... | 08/15/2000 |
| 6034042 | Star polymer viscosity index improver for oil compositions The present invention includes star polymers which can be used as viscosity index improvers in oil compositions formulated for high performance engines. The star polymers have tetrablock copolymer arms of hydrogenated polyisoprene-polybutadiene-polyisopre... | 03/07/2000 |
| 5847247 | Terpene-based solvents The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to monoterpenes but have flash points high enough to be class... | 12/08/1998 |
| 5755832 | Fuel additive concentrate containing tagging material An additive concentrate has at least one nitrogen-containing deposit control additive, a solvent, and at least one tagging material. The tagging material has a number average molecular weight of at least 15,000 and a weight average to number average molec... | 05/26/1998 |
| 5723709 | Terpene dimer compositions and related methods of manufacture Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C20 H32 and contain at least one double bond. The terpene dimer... | 03/03/1998 |
| 5644018 | Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch Mesophase pitch that has a softening point of no more than 250° C., a pyridine-insolubles content of no more than 50% and a n-heptane solubles content of 3-10%, with the n-heptane solubles experiencing a weight loss of no more than 15% at 450° C. as mea... | 07/01/1997 |
| 5637783 | Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of a ring substit... | 06/10/1997 |
| 5633415 | Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different ... | 05/27/1997 |
| 5633414 | Preparation of tetrafluoroethylene Metal fluoride and carbon are fed to a plasma flame to form a gaseous reaction mixture which is quenched to form tetrafluoroethylene. The plasma flame can be formed from a non-reactive gas and the metal fluoride and carbon then become part of the plasma f... | 05/27/1997 |
| 5512066 | Tagging materials for gasoline Gasolines are identified from one another by adding to at least one of the gasolines at least one tagging material which is unique to that gasoline. Each unique tagging material has a number average molecular weight of at least 15,000 and is present at a ... | 04/30/1996 |
| 5462680 | Free radical adducts of fullerenes with hydrocarbons and polymers This invention relates to novel compositions of matter comprising free radical adducts of a fullerene with one or more saturated hydrocarbons having a number average molecular weight ranging from about 200 to about ten million. Attachment of saturated hyd... | 10/31/1995 |
| 5458792 | Asymmetric triblock copolymer viscosity index improver for oil compositions The present invention includes asymmetric triblock copolymers which are used as viscosity index improvers in oil compositions formulated for high performance engines. The triblock copolymers have the block structure hydrogenated polyisoprene-polystyrene-h... | 10/17/1995 |
| 5458796 | Synthesis of polyisobutylene star-branched polymers via living carbocationic polymerization The present invention is the synthesis of star polymers containing polyisobutylene (PIB) via the arm-first, core-last method. These polymers are superior in properties to known hydrogenated polyisoprene star-branched polymers due to their inherent lack of... | 10/17/1995 |
| 5457249 | Process for isomerizing endo-form of aromatic group-containing norbornenes to exo-form thereof, isomer mixture of aromatic group-containing norbornenes and process for preparing same, and ethylene/aromatic group-containing norborne copolymer and process A process for isomerization of an endo-form of aromatic group-containing norbornenes represented by the following formula (I) to an exo-form which comprises bringing the endo-form into contact with a solid acid catalyst. ##STR1## wherein p is 0 or an... | 10/10/1995 |
| 5453211 | Tetralins or a combination of tetrlins and organic sulfides as lube oil anti-oxidants The oxidation stability of lube base oils is improved by the addition of tetralins or combination of tetralins and organic sulfides. The addition of tetralins or combination of tetralins and organic sulfides to formulated lube oils has also been found to ... | 09/26/1995 |
| 5446228 | Benzyltoluenes/benzylxylenes dielectric compositions Benzyltoluene/benzylxylene admixtures, easily prepared via Friedel-Crafts condensation of benzyl chloride with a mixture of toluene and xylene, are useful dielectric oils exhibiting improved rigidity and are well suited for inclusion in voltage transforme... | 08/29/1995 |
| 5387730 | Vulcanizable liquid compositions There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of at least one polymerized conjugated diene of at least five (5) carbon atoms, such as isoprene, and B is a block of a polymer of at least one conjug... | 02/07/1995 |
| 5276227 | C2 -C5 olefin oligomer compositions as shear stable viscosity index improvers Liquid hydrocarbon lubricant viscosity index improver compositions are disclosed having high shear stability. The compositions comprise the homopolymer or copolymer product of the oligomerization of C3 to C5 alpha-olefin or mixtures ... | 01/04/1994 |
| 5254274 | Alkylaromatic lubricant fluids Aromatic compounds are alkylated with C20 -C1300 olefinic oligomers using an acidic alkylation catalyst to produce alkylated aromatic products, usually alkylaromatic hydrocarbons. The olefinic oligomers used as alkylating agents are ... | 10/19/1993 |
| 5146022 | High VI synthetic lubricants from cracked slack wax A process is disclosed for the production of synthetic lubricants having high viscosity index and thermal stability by oligomerizing a mixture of C5 -C18 or C6 -C16 alpha-olefins produced from the thermal cracki... | 09/08/1992 |
| 5136118 | High VI synthetic lubricants from cracked refined wax A process is disclosed for the production of synthetic hydrocarbon lubricants having high viscosity index by oligomerizing a mixture of alpha-olefins comprising the reaction product from the thermal cracking of refined wax. The oligomerization is carried ... | 08/04/1992 |
| 5132477 | Process for producing alkylaromatic lubricant fluids The thermal and oxidative stability of HVI-PAO olefin oligomers is improved by reaction of the oligomerization mixture containing the olefin oligomer, dimer and isomerized but unoligomerized olefin with an aromatic compound such as toluene, xylene or naph... | 07/21/1992 |
| 5068476 | Lubricant oligomers of C2 -C5 olefins Liquid olefin oligomers are produced by the oligomerization of C2 -C5 alpha olefin alone or with ethylene as a co-monomer. The oligomers having high viscosity index and a structure which is characterized by a regio-irregularity of at... | 11/26/1991 |
| 5066779 | Catalytic process for producing raw material pitch for carbon materials from naphthalene The present invention discloses a process for producing a raw material pitch for carbon materials containing a slight amount of ash, the comprising steps of adding aluminum chloride to naphthalene or its derivative as a catalyst; polymerizing said naphtha... | 11/19/1991 |
| 5034437 | Storage stable unsaturated thermosettable resins and cured products Thermosettable ethylenically unsaturated resins are rendered storage stable by the addition of a complex formed by mixing (a) at least one quinonoid compound and (b) at least one imidazole compound. The reactivity of these storage stable resins with curin... | 07/23/1991 |
| 5026933 | Olefin oligomerization with surface modified zeolite catalyst A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite... | 06/25/1991 |
| 5019537 | Forming aids for ceramic materials, ceramic bodies formed by using the aids, and process of producing ceramic products A forming aid to be mixed in a ceramic material for forming the ceramic material into a formed ceramic body of a desired shape, including at least one of a thermoplastic resin and a wax, and a mineral oil in an amount of 30-95% by volume with respect to a... | 05/28/1991 |
| 5017733 | Electrical insulating oil composition An electrical insulating oil composition which comprises 45% by weight or more of at least 2 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, and (f) 1,1... | 05/21/1991 |
| 5008460 | Synthetic lubricants Synthetic lubricating oils having a predetermined alkylaromatic structure are prepared from a mixture of mono- or dialkenyl benzene with an aliphatic olefin by free-radical reaction in the presence of ditertiary-butyl peroxide, for example. Equivalent nap... | 04/16/1991 |
| 4967029 | Liquid lubricants from alpha-olefin and styrene copolymers Alpha-olefins such as 1-decene are copolymerized with vinylaromatic monomers, especially styrene or the alkylstyrenes, to produce liquid lubricant oligomers having a broad range of viscosities, high viscosity index(VI), improved thermal stability and addi... | 10/30/1990 |
