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| Number | Title | Issue Date |
| 5545790 | Process for the catalytic cyclodimerization of cyclic olefins A catalytic process for the dimerization of norbornene and/or norbornadiene using a reduced valence state Group VIB metal oxide as the catalyst, preferably Cr(II) on a porous support such as silica. The product norbornene dimer or norbornadiene dimer is o... | 08/13/1996 |
| 5545783 | 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... | 08/13/1996 |
| 5510548 | 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... | 04/23/1996 |
| 5510392 | Polyalpha olefins for food and pharmaceutical applications A synthetic hydrocarbon-based material for direct use in foods and pharmaceuticals which includes a hydrogenated oligomer of an alpha olefin having 5 to 20 carbon atoms.... | 04/23/1996 |
| 5510016 | Gasoline upgrading process A process for catalytically desulfurizing cracked fractions in the gasoline boiling range to acceptable sulfur levels uses an initial hydrotreating step to desulfurize the feed with some reduction in octane number, after which the desulfurized material is... | 04/23/1996 |
| 5508353 | Comb graft polymers and their use in functional fluids There are disclosed novel comb graft polymers and copolymers comprising a backbone of a linear polymer of p-methylstyrene (p-MS) and grafted branches of a linear addition polymer of at least one anionically polymerizable compound. The polymers may be prod... | 04/16/1996 |
| 5500108 | Gasoline upgrading process Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising an intermediate pore size zeolite such as zeolite ZSM-5 i... | 03/19/1996 |
| 5491270 | Benzene reduction in gasoline by alkylation with higher olefins A benzene-rich gasoline stream is alkylated with higher olefins in contact with a fluid bed of shape selective zeolite catalyst to produce a gasoline product stream reduced in benzene content wherein the high octane value alkylaromatics formed by benzene ... | 02/13/1996 |
| 5489719 | Process for the production of tertiary alkyl ether rich FCC gasoline A process is disclosed for the production of alkyl tertiary alkyl ethers in C4 + hydrocarbon streams rich in isoolefins, typically containing catalyst deactivating amounts of dienes and/or compounds containing heteroatoms. The process is especi... | 02/06/1996 |
| 5489649 | Star-branched polymers and functional fluids prepared therefrom Novel star-branched polymers in which the arms are each a polymer of an anionically polymerizable monomer consisting of monoethylenically unsaturated compounds comprising p-tert-butylstyrene (t-BS) coupled with a polyalkenyl coupling agent. Certain of the... | 02/06/1996 |
| 5488191 | Hydrocarbon lube and distillate fuel additive A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifyi... | 01/30/1996 |
| 5488186 | Gas phase process for the hydration of propylene A process is presented for the hydration of light olefins to produce C2 -C7 aliphatic alcohols with improved selectivity, catalyst productivity and catalyst stability. Acidic medium pore, shape selective metallosilicate catalyst part... | 01/30/1996 |
| 5484866 | Concentrates of a highly branched polymer and functional fluids prepared therefrom A process for the preparation of a polymer concentrate which is a relatively concentrated solution in a base stock oil, e.g., a mineral oil or synthetic hydrocarbon oil, of a highly branched polymer having segments of a polymer of p-tert-butylstyrene (t-B... | 01/16/1996 |
| 5484578 | Two-phase distributor system for downflow reactors A distributor system for uniformly directing vapor and liquid across the surface of a fixed bed of solids in a downflow reactor comprising a distributor tray, and a plurality of open-ended downpipes extending through the tray. A first array of the downpip... | 01/16/1996 |
| 5482617 | Desulfurization of hydrocarbon streams A process for desulfurizing a hydrocarbon stream which includes at least 50 ppmw sulfur in the form of organic sulfur compounds, and C5 + hydrocarbons including benzene. The hydrocarbon stream is contacted in the absence of added hydrogen with ... | 01/09/1996 |
| 5458861 | Desulfurizing a gas stream A multi-bed process of removing sulfur oxides and/or other combustible sulfur-containing compounds from a gas stream including combusting the other combustible sulfur-compounds when present in the gas stream with air or oxygen to convert such sulfur-conta... | 10/17/1995 |
| 5457161 | Solid block elastomeric copolymers comprising at least three alternating blocks There is disclosed a linear block copolymer comprising at least one triblock I--B--I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from ... | 10/10/1995 |
| 5444168 | Process for the production of symmetrical ethers from secondary alcohols Secondary alcohols are converted to symmetrical secondary alkyl ethers in high selectivity. The method employs acidic solid metallosilicate catalyst particles to accomplish the etherification by selective intermolecular dehydration of secondary alcohol to... | 08/22/1995 |
| 5438102 | Solid elastomeric block copolymers There are disclosed novel, solid, elastomeric block copolymers having excellent oxidative and thermal stability, wherein the terminal blocks are each a polymer (D polymer) of at least one conjugated diene D, which is a hydrocarbon containing a 1,3-conjuga... | 08/01/1995 |
| 5432231 | Recycling stretch wrap film Waste from stretch wrap films is recycled into non-blocking films useful as bags and liners as well as in food applications, by incorporating a polymer which contains cross-linked rubber particles, such as high impact polystyrene or an EPDM elastomer. The... | 07/11/1995 |
| 5419884 | Regenerative mercury removal process A regenerative mercury removal process for simultaneously removing high mercury and water content from a fluid comprising; contacting for a sufficient time a high content mercury-containing fluid with an adsorbent bed having sufficient silver coated or im... | 05/30/1995 |
| 5416163 | Polymer blends containing a solid elastomeric block copolymer There are disclosed novel, solid, elastomeric block copolymers with improved resistance to cold flow wherein either 1) the terminal blocks are polymers of at least one conjugated diene I, e.g., isoprene, which contains at least five carbon atoms with at l... | 05/16/1995 |
| 5414172 | Naphtha upgrading A process for upgrading low octane naphthas to produce gasoline products with low levels of benzene and aromatics while retaining a high pool octane uses a paraffinic naphtha reformer feed which is dehexanized to provide a C7 + fraction which i... | 05/09/1995 |
| 5413696 | Gasoline upgrading process Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta. The treatment over the acidic catalyst ... | 05/09/1995 |
| 5411658 | Gasoline upgrading process Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta with a metal hydrogenation component, prefer... | 05/02/1995 |
| 5409599 | Production of low sulfur distillate fuel Low sulfur distillate fuel oils such as road diesel oil having a maximum sulfur content of 0.05 weight percent, are produced by segregation of a distillate range feed into a lower boiling fraction and higher boiling fraction with the cut point between the... | 04/25/1995 |
| 5409596 | Hydrocarbon upgrading process Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5. The... | 04/25/1995 |
| 5407830 | Control of low inventory alkylation unit A method and system for controlling an HF alkylation system comprising a reactor, a settler, an HF acid regenerator and a source of fresh HF acid wherein a stream of olefins and a stream of isobutanes are contacted in the reactor in the presence an HF aci... | 04/18/1995 |
| 5401393 | Reactive adsorbent and method for removing mercury from hydrocarbon fluids A method is disclosed for synthesizing a reactive sulfur-containing adsorbent material for removing metals, preferably mercury, from hydrocarbon fluids. The method includes impregnating a porous polystyrene resin with elemental sulfur, and heating the imp... | 03/28/1995 |
| 5401391 | Desulfurization of hydrocarbon streams A process for desulfurizing a hydrocarbon stream which includes at least 100 ppmw sulfur in the form of organic sulfur compounds, and C4 -hydrocarbons. The hydrocarbon stream is contacted in the absence of added hydrogen with a fluidized bed of... | 03/28/1995 |
| 5401389 | Gasoline-cycle oil upgrading process Light cycle oil (LCO) is upgraded to a low sulfur gasoline by co-processing the LCO with a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta with a metal hydrogenatio... | 03/28/1995 |
| 5399629 | Solid elastomeric block copolymers There are disclosed novel, solid, elastomeric block copolymers with improved resistance to cold flow wherein either 1) the terminal blocks are each a polymer (I polymer) of at least one conjugated diene I, e.g., isoprene, which contains at least five carb... | 03/21/1995 |
| 5399270 | Inhibition of scale formation from oil well brines utilizing a slow release composition A method for the inhibition of scale deposition on the surfaces of a well coproducing oil and scale forming brines comprising injecting into the well reservoir an acidic aqueous solution at a first pH containing dissolved therein a scale inhibitor, multiv... | 03/21/1995 |
| 5397455 | Gasoline upgrading process Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 with... | 03/14/1995 |
| 5395538 | Alkylated thiophene lubricants Alkylated thiophene compounds are high temperature stable lubricant fluids having excellent thermal stability, antiwear and load-carrying properties and excellent additive solubility.... | 03/07/1995 |
| 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 |
| 5384055 | Lubricant additives A lubricant additive composition and method for production is disclosed comprising the adduct of an olefinic oligomer and an enophile, said olefinic oligomer comprising the product of the oligomerization of C2 to C24 alpha-olefin fee... | 01/24/1995 |
| 5382705 | Production of tertiary alkyl ethers and tertiary alkyl alcohols A process for upgrading a light olefin feed by converting the 1-olefins to higher molecular weight oligomers and the iso-oleins to fuel ethers or alcohols. The process provides substantial improvements in the production of lower alkyl tertiary alkyl ether... | 01/17/1995 |
| 5376722 | Solid random elastomeric copolymers There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from th... | 12/27/1994 |
| 5372734 | Alkylated benzothiophene-derived lubricants Alkylated benzothiophenes or dibenzothiophenes are high-temperature stable lubricant fluids having extreme pressure and antiwear properties, additive solubility and inherent EP/antiwear properties. These novel fluids may also be used as additives in other... | 12/13/1994 |
