With Solvent Or Dispersing Medium Patents (Class 106/278)
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Patent number: 4755277Abstract: A process is disclosed for the preparation of a hydrocarbonaceous distillate and a hydrocarbonaceous residue, which comprises mixing a residual fraction of a product obtained by catalytic cracking or hydrocracking a hydrocarbonaceous feedstock, with a second hydrocarbonaceous fraction having such a boiling range that at least 50% w boils at a temperature above 400.degree. C., and subjecting the resulting mixture to a subatmospheric distillation yielding at least one distillate fraction and one residue. The residue thus prepared is a suitable component in bitumen compositions.Type: GrantFiled: March 20, 1987Date of Patent: July 5, 1988Assignee: Shell Oil CompanyInventors: Jacobus H. Breuker, Gerrit van Gooswilligen, Johannes L. M. Syrier
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Patent number: 4692350Abstract: Substrates such as aggregates, particularly for roadbuilding, are coated with asphalt by foaming the asphalt and mixing the hot asphalt foam with the aggregate. The asphalt is foamed by dispersing water in the hot asphalt as to maintain the water in the liquid phase and then vaporizing the water to form the foam structure.Type: GrantFiled: April 1, 1986Date of Patent: September 8, 1987Assignee: Mobil Oil CorporationInventors: Aubrey R. Clarke, Colin L. Martin, Robert H. Bowering
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Patent number: 4661378Abstract: A novel composition for treating asphalt and concrete surfaces is provided formed of a mixture of topped coke oven tar, an aromatic solvent having an API Gravity@ 60.degree. F. of 11-30, Specific Gravity 60.degree./60.degree. F. of from 0.876-0.993, Distillation Range .degree. F. of 310-450 IBP (initial boiling point) to 350-550 DP (dry point), and a Flash pt. .degree. F. TCC of 110-250; and a bituminous pavement rejuvenator which is a composition derived from coal tar and comprises a mixture of di-, tri- and tetracyclic aromatic compounds and their alkyl homologs containing lower alkyl groups together with a significant amount of phenolic and hydroxy derivatives and having a specific gravity at 25.degree./25.degree. C. of at least 1.08, an initial boiling point of at least 180.degree. C., and a continuous boiling range to at least 300.degree. C., 70-40% by volume of the material remaining as residue at 300.degree. C., and the distillate to 300.degree. C. having a minimum specific gravity at 25.degree./25.Type: GrantFiled: July 23, 1985Date of Patent: April 28, 1987Assignee: Koppers Company, Inc.Inventor: Edward W. McGovern
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Patent number: 4549834Abstract: The process and composition for improving asphalt paving by mining existing roads for their asphalt content, blending the mined or recycled asphalt with new asphalt which is unusually high in resin content to provide a pavement of increased ductility and improved penetration characteristics which will wear better.Type: GrantFiled: September 29, 1983Date of Patent: October 29, 1985Assignee: Pester Refining CompanyInventor: Jerry R. Allen
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Patent number: 4544410Abstract: A stable, thixotropic aqueous bitumen dispersion containing no emulsifier is prepared. Alkaline earth metal hydroxide and an aluminum salt are brought into contact to form an aqueous aluminum hydroxide gel. Molten bitumen is dispersed in the gel. The dispersion has a good shelf life and is stable with respect to electrolytes and chemically active construction materials.Type: GrantFiled: November 4, 1983Date of Patent: October 1, 1985Inventors: Belane Karacsonyi nee Eva Spindler, Bela Racz, Istvan Boszormenyi, Laszlo Kiraly, Andras Medgyesi
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Patent number: 4459157Abstract: An asphalt blend in which a butadiene-styrene elastomeric block polymer can easily be dispersed at between about 325.degree. F. and about 400.degree. F. and, after cooling, forms a stable material useful as a roofing composition and having a flash point of greater than about 450.degree. F., said blend being composed of a propane extracted asphalt and from about 5 weight % to about 45 weight % of a fluid bed catalytic petroleum cracker bottoms oil comprising a major proportion of oils boiling above 700.degree. F. and, optionally, a minor proportion of oils between about 350.degree. F. and 700.degree. F.Type: GrantFiled: July 19, 1982Date of Patent: July 10, 1984Assignee: Tosco CorporationInventor: Russell E. Koons
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Patent number: 4450011Abstract: Reaction products of polyamines with sulfonated oleic acid or sulfonated tall oil fatty acids are disclosed which give emulsions capable of producing cationic medium set mixing grade asphalt emulsions, as well as rapid set asphalt emulsions. Solventless asphalts as well as asphalts containing up to 15% by volume of a hydrocarbon oil can be used for emulsification.Type: GrantFiled: September 20, 1982Date of Patent: May 22, 1984Assignee: Westvaco CorporationInventors: Peter Schilling, Hans G. Schreuders
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Patent number: 4384030Abstract: An improved sealant for battery cells is disclosed. The new sealant is prepared by mixing trichloroethane with asphalt. This composition, is less flammable than known battery cell sealants and, when appiled to the seal ring of a battery cell, yields unexpected improvements in preventing leakage of electrolyte from the battery cell.Type: GrantFiled: August 27, 1980Date of Patent: May 17, 1983Assignee: General Electric CompanyInventors: Kenneth C. LeDuc, Joseph P. Bellino
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Patent number: 4382989Abstract: The present invention is an asphaltic composition which is useful as a roofing asphalt formulation and method of making this formulation. The composition includes about 39 to 99 percent by weight of oxidized asphalt and between 1 and about 8 percent of oxidized polyethylene. It is preferred to use between about 0 to 40 percent of the saturant, which can be an unoxidized asphalt, to modify the viscosity of the formulation. There can be a filled asphaltic composition comprising about 40 percent by weight to about 99 percent by weight of the asphaltic composition and about 1 percent by weight to about 60 percent by weight of filler, which can be stone dust.Type: GrantFiled: October 26, 1981Date of Patent: May 10, 1983Assignee: Allied CorporationInventors: Irving B. Chang, Robert E. Beckwith, Jr.
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Patent number: 4376651Abstract: The invention relates to a protective coating for foundry implements which are in contact particularly with molten aluminium alloys, comprising from 10 to 60 weight parts of extraction oil obtained by deasphalting and dewaxing heavy oils left after the vacuum distillation of crude oil having a kinematic viscosity of from 37 to 53 mm.sup.2.sec..sup.-1 at 100.degree. C. and an open cup flash point of at least 285.degree. C.; further from 5 to 30 weight parts of a mixture of light and middle oils obtained by the vacuum distillation of crude oils having a flash point of at least 150.degree. C. and a viscosity of from 16 to 22 mm.sup.2.sec..sup.-1 at 50.degree. C., from one to 15 weight parts of graphite, or from 0.1 to 5 weight parts of wool fat, and from 0.1 to 3 weight parts of ethoxylated fatty alcohols having from 12 to 18 carbon atoms and from 10 to 20 ethylene oxide units in the molecule, the coating being characterized in that it additionally contains from 20 to 65 weight parts of titanium dioxide.Type: GrantFiled: February 11, 1982Date of Patent: March 15, 1983Assignee: Vyzkumny ustav keramikyInventors: Igor Lanik, Otakar Havelka, Dusan Pirochta
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Patent number: 4363670Abstract: Mesocarbon microbeads are continuously produced by the steps of: (1) mixing a matrix pitch, mesophase microspheres, and a solvent in which the pitch will dissolve but the microspheres will not, thereby to prepare a liquid mixture of a solution and dispersion; (2) processing the mixture in at least two stages of liquid cyclones, thereby to separate it into light and medium-weight liquids and a heavy liquid containing most of the microspheres; and (3) evaporating off the solvent from the heavy liquid thus obtained, thereby to obtain the microspheres as mesocarbon microbeads. The solvent is evaporated off from the light liquid to recover the pitch, and the medium-weight liquid is recycled to step (1) and (2).Type: GrantFiled: January 5, 1981Date of Patent: December 14, 1982Assignee: Koa Oil Company, LimitedInventors: Kosaku Noguchi, Honami Tanaka, Yukimasa Kumura, Eiji Kitajima, Noriyuki Tsuchiya, Tomonori Sunada
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Patent number: 4359381Abstract: An apparatus for regenerating used mixtures for road pavement including an asphalt concrete mixture and a cement concrete mixture is provided with a first vibration sieve, conveyer, passage, roof, transferring means, guide means such as a V-shape plate and a screw conveyer, spray means such as water supply pipes, discharging means such as a hoist device, and a second vibration sieve. The asphalt concrete mixture together with others are sorted by the first vibration sieve, transferred in a given direction by the transferring means such as a container, heated by the hot water from the spray means, subdivided and sorted by the second vibration sieve.Type: GrantFiled: May 11, 1981Date of Patent: November 16, 1982Inventor: Michio Jinno
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Patent number: 4358554Abstract: This invention provides a process for repairing and surfacing broken asphalt pavements which involves applying to the distressed pavement a binder composition which has exceptional solvating power for asphaltic material, and which functions to solubilize and incorporate aged pavement asphalt into the binder composition as it penetrates and fills void spaces.Illustrative of a preferred binder composition which is applied to the distressed pavement is a homogeneous blend of (1) a FCC main column bottoms residuum boiling above about 650.degree. F., and (2) an asphalt-soluble elastomer which improves the elasticity and wear resistance of the binder composition.Type: GrantFiled: February 10, 1981Date of Patent: November 9, 1982Assignee: Mobil Oil CorporationInventors: Tsoung Y. Yan, Costandi A. Audeh
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Patent number: 4338136Abstract: Fast-breaking bituminous emulsions are prepared by using a liquid emulsifying agent obtained by condensation at a temperature of 160.degree.-180.degree. C. of diethylenetriamine and a C.sub.12-18 fatty acid having an iodine value of at least 25, followed by at least partial cyclization of the condensation product at a temperature between approximately 190.degree. and 240.degree. C., the initial molar ratio between the diethylenetriamine and the fatty acid being at least 5 to 1, and the end product having a total amine index of at least 5.6 and optionally containing up to 10% free diethylenetriamine.Type: GrantFiled: March 15, 1979Date of Patent: July 6, 1982Assignee: APC-Azote et Produits Chimiques, S.A.Inventors: Pierre Goullet, Pierre Scotte
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Patent number: 4332707Abstract: Homogeneous, substantially single phase, stable solutions of the reaction product of asphalt, a vinyl aromatic monomer, and a rubbery polymer are provided. These solutions may be sprayed onto metal surfaces to provide corrosion resistant coatings thereon and also coatings which have a sound dampening quality. The solvent employed to form the solution is a mixture of xylene and Stoddard solvent or a mixture of xylene, Stoddard solvent and heptane or hexane, or a mixture of heptane and hexane.Type: GrantFiled: April 1, 1981Date of Patent: June 1, 1982Assignee: Owens-Corning Fiberglas CorporationInventors: Michael G. Roberts, Joseph F. Tanner
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Patent number: 4328147Abstract: The present invention is an asphaltic composition which is useful as a roofing asphalt formulation and method of making this formulation. The composition includes about 39 to 99 percent by weight of oxidized asphalt and between 1 and about 8 percent oxidized polyethylene. It is preferred to use between about 0 to 40 percent of the saturant, which can be an unoxidized asphalt, to modify the viscosity of the formulation. There can be a filled asphaltic composition comprising about 40 percent by weight to about 99 percent by weight of the asphaltic composition and about 1 percent by weight to about 60 percent by weight of filler, which can be stone dust.Type: GrantFiled: October 30, 1980Date of Patent: May 4, 1982Assignee: Allied CorporationInventors: Irving B. Chang, Robert E. Beckwith, Jr.
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Patent number: 4325854Abstract: Homogeneous, substantially single phase, stable solutions of the reaction product of asphalt, a vinyl aromatic monomer, and a rubbery polymer, in a toluene based solvent, are provided. These solutions may be sprayed onto metal surfaces to provide corrosion resistant coatings thereon and also coatings which have a sound dampening quality.Type: GrantFiled: April 1, 1981Date of Patent: April 20, 1982Assignee: Owens-Corning Fiberglas CorporationInventors: Michael G. Roberts, Joseph F. Tanner
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Patent number: 4316829Abstract: A chemically-modified asphalt composition formed by reaction of asphalt and a polymerizable aromatic monomer followed by reaction with a polyester. Alternatively, the impact strength of the chemically-modified asphalt composition can be increased by carrying out the latter reaction in the presence of a rubbery polymer. The composition is non-tacky relative to the asphalt and can be cross-linked with a vulcanizing agent to form rigid bodies which can be chemically bonded to reinforcements and fillers, specifically including glass fibers.Type: GrantFiled: September 25, 1980Date of Patent: February 23, 1982Assignee: Owens-Corning Fiberglas CorporationInventor: Michael G. Roberts
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Patent number: 4304606Abstract: This invention relates to a plasticized coal tar pitch comprising a mixture consisting essentially of about 50 to about 80 weight percent of a coal tar pitch having a softening point of about 40.degree. to about 75.degree. C. (Kramer-Sarnow); and about 50 to about 20 weight percent of a coal tar fraction rich in crystals and having a boiling point of about 350.degree. C. to about 450.degree. C. The mixture is suitable for blending with crude oil bitumen for producing a binder suitable for application to roadways.Type: GrantFiled: June 6, 1979Date of Patent: December 8, 1981Assignee: Rutgerswerke AktiengesellschaftInventors: Heinrich Louis, Helmut Kohler, Rudolf Oberkobusch, Gerd Collin, Volker Potschka
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Patent number: 4302370Abstract: An asbestos-free asphalt composition is provided of the kind used in roofing applications. A polypropylene carbonate coupling agent is used with high density polyethylene fibers to prevent settling or separation of the components.Type: GrantFiled: June 2, 1980Date of Patent: November 24, 1981Assignee: Texas Refinery CorporationInventor: Mark W. Buse
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Patent number: 4298397Abstract: In a stockpile asphalt emulsion composition an improved asphalt phase comprises 50-98% of paving grade asphalt, 1-10% added sulfur, and 1-35% liquid hydrocarbon.Type: GrantFiled: April 14, 1980Date of Patent: November 3, 1981Inventor: Michael V. Burris
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Patent number: 4283231Abstract: Propane-precipitated asphalt is heated with 1-15 wt. % elemental sulfur at 140.degree. to 300.degree. C. until hydrogen sulfide evolution ceases. The sulfur-treated asphalt base material having an increased softening point of about 65.degree.-300.degree. C., is blended with 5-60 wt. % liquid petroleum fraction, such as vacuum gas oil or extract oil, having an equivalent atmospheric boiling point of 370.degree.-500.degree. C., to yield a quality paving grade asphalt cement composition meeting ASTM standards.Type: GrantFiled: January 10, 1980Date of Patent: August 11, 1981Assignee: Exxon Research & Engineering CompanyInventors: Dominick Clementoni, Luke W. Corbett
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Patent number: 4283230Abstract: Propane-precipitated asphalt is contacted with a stream of air at 200.degree. C. and above to increase the softening point of the asphalt. The resulting asphalt base, having a softening point of about 65.degree.-300.degree. C., is then blended with 5-60 weight percent liquid sulfur-treated petroleum fraction, having an equivalent atmospheric boiling point range of 370.degree.-500.degree. C., to yield paving grade quality asphalt cement composition.Type: GrantFiled: January 10, 1980Date of Patent: August 11, 1981Assignee: Exxon Research & Engineering Co.Inventors: Dominick Clementoni, Luke W. Corbett
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Patent number: 4282039Abstract: A cold ramming mix suitable for ramming of alumina reduction cell cathode seams at ambient temperature comprising:(A) a solid portion comprising:(I) from about 30 to about 60 weight percent of coarse calcined anthracite;(II) from about 50 to about 30 weight percent of anthracite dust; and(III) from about 1 to about 10 weight percent graphite dust;(B) from about 5 to about 15 weight percent based on the weight of the solid portion of a binder pitch; and(C) from about 5 to about 10 weight percent based on the weight of the solid portion, of a heavy petroleum distillate oil having a 95% distillation range of between about 370.degree. and 540.degree. C.A method for producing such a mix comprising blending A and B to provide a homogeneous mixture and subsequently blending in C under conditions which assure that the pitch binder is not dissolved in the oil of C is also described.Type: GrantFiled: June 30, 1980Date of Patent: August 4, 1981Assignee: Reynolds Metals CompanyInventor: Vaughn L. Bullough
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Patent number: 4282037Abstract: Emulsion compositions containing substantial amounts of gilsonite consist essentially of a gilsonite phase consisting of a mixture of between about 33 and about 95% gilsonite, and a petroleum hydrocarbon having a boiling point above about 200.degree. F., and a water phase consisting essentially of water and a small amount of emulsifying agent. The emulsifying agent may include a surface active clay.Type: GrantFiled: December 7, 1979Date of Patent: August 4, 1981Inventor: Michael V. Burris
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Patent number: 4278469Abstract: This invention provides a process for repairing and surfacing broken asphalt pavements which involves applying to the distressed pavement a binder composition which has exceptional solvating power for asphaltic material, and which functions to solubilize and incorporate aged pavement asphalt into the binder composition as it penetrates and fills void spaces.Illustrative of a preferred binder composition which is applied to the distressed pavement is a homogeneous blend of (1) a FCC main column bottoms residuum boiling above about 650.degree. F., and (2) an asphalt-soluble elastomer which improves the elasticity and wear resistance of the binder composition.Type: GrantFiled: June 4, 1979Date of Patent: July 14, 1981Assignee: Mobil Oil CorporationInventors: Tsoung Y. Yan, Costandi A. Audeh
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Patent number: 4259127Abstract: A method of weather-proofing surfaces, particularly concrete roofs, is described wherein first applied is an inner layer of a soft asphalt (bitumen) having a softening point of 100.degree.-140.degree. F. and including reinforcing fibers, and then an overlying layer of an asphalt-saturated-felt. In one preferred example, the overlying layer is a glass-fiber mat saturated with a hard air-blown asphalt having a softening point of at least 180.degree. F.; and in a second described example, it is paper saturated with soft (non-blown) asphalt and coated on its outer faces with the hard air-blown asphalt. The combination of the soft asphalt inner layer and the asphalt-saturated-felt outer layer has been found to produce a barrier impermeable to water travelling inwardly, but permeable to vapor travelling outwardly thereby avoiding the formation of blisters.Type: GrantFiled: January 6, 1978Date of Patent: March 31, 1981Assignee: Tanis Ltd.Inventor: Haim Schachter
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Patent number: 4256734Abstract: A method is provided for making road surface coatings by depositing a layer of chippings on a hydrocarbon binder in the form of a foam and wherein the thickness of the foam is substantially equal to the maximum dimension of the chippings and thereafter compacting the resulting product mixture.Type: GrantFiled: March 21, 1977Date of Patent: March 17, 1981Inventor: Rene Smadja
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Patent number: 4247335Abstract: Paving-grade asphalt compositions having improved resistance to weathering are described which are obtained by incorporating into a paving-grade asphalt either (1) the product obtained by alkylating phenol with a resin oil, i.e., a hydrocarbon fraction of medium molecular weight compounds in the C.sub.9 carbon range primarily aromatic in nature, or (2) the condensation product of formaldehyde with the alkylation product of phenol and a C.sub.4 raffinate stream consisting mainly of butene-1, butene-2 and isobutylene.Type: GrantFiled: October 19, 1976Date of Patent: January 27, 1981Assignee: Monsanto CompanyInventor: Rodney D. Beckham
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Patent number: 4236675Abstract: Hot-mix asphaltic concrete is fed from a supply hopper, located off-center above one end of a coolant tank containing a coolant bath, on to a rotating vaned projecting drum. Sheets of asphaltic concrete, the thickness of which are controlled by the clearance between the shearing edge of the supply hopper and the vaned projecting drum, are formed and projected above the coolant bath toward the opposite side of the coolant tank against a dispersing drum rotating in a direction opposite to that of the vaned projecting drum about an axis of rotation substantially parallel to that of the projecting drum. The sheets of asphaltic concrete are broken into particles and deflected through the coolant bath towards an endless conveyer. The particles, which are collected by the endless conveyer, are further cooled by the coolant bath as they are conveyed to the opposite end of the coolant tank and discharged.Type: GrantFiled: September 19, 1977Date of Patent: December 2, 1980Inventor: Theodore S. Bladykas
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Patent number: 4227933Abstract: The employing of finely-divided and naturally-occurring particulate matter of Trinidad Asphalt to lock or hold the aggregate filler mixture of the pavement mix in position, almost entirely filling the mix with soft bitumen, permitting subsequent compacting (as by rolling) to a state of substantial voidlessness, and thereby achieving a pavement which is both strong with respect to bearing strength yet soft and/or flexible with respect to its tendency to crack, and which will optimize a sort of self-rehealing of the membrane if cracking should start to occur.Type: GrantFiled: December 15, 1978Date of Patent: October 14, 1980Inventor: LeRoy H. McAllister, Jr.
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Patent number: 4226633Abstract: A process for manufacturing homogeneous and low porosity carbon articles of great mechanical strength from a composition including a sinterable mother material and an additive selected from the group consisting of hydrocarbons, fatty acids, esters and salts of fatty acids, organic compounds having OH functional groups and mixtures thereof, wherein the mother material has an H/C atomic ratio of 0.3 to 0.75, a fixed carbon value of 55 to 96% and does not flow out of a 1 mm diameter nozzle at a temperature of 300.degree. C. under a load of 10 kg/cm.sup.2 ; and the additive has a fixed carbon value of 20% at most, a boiling or decomposition point of at least 150.degree. C. and becomes fluid at a temperature of at least 100.degree. C.Type: GrantFiled: July 3, 1978Date of Patent: October 7, 1980Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Kiro Asano, Fumio Tamura, Yoshio Kawai, Kiyoshi Yamaki
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Patent number: 4211575Abstract: In a stockpile asphalt emulsion composition an improved asphalt phase comprises 40-70% of paving grade asphalt, 10-50% sulfur, and 5-30% liquid hydrocarbon.Type: GrantFiled: January 8, 1979Date of Patent: July 8, 1980Inventor: Michael V. Burris
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Patent number: 4211576Abstract: This invention provides a method for solubilizing scrap rubber, or coal and scrap rubber mixtures, in a highly aromatic refinery petroleum solvent to produce homogeneous compositions which have a physical state ranging from flowable pitch-like consistency to asphaltic hardness at ambient temperatures. The products of the present invention are high quality rubberized pitch and asphalt compositions which have utility in applications as caulk, mastic, adhesive, sealant and road paving compositions.Type: GrantFiled: August 2, 1977Date of Patent: July 8, 1980Assignee: Mobil Oil CorporationInventor: Tsoung-Yuan Yan
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Patent number: 4207117Abstract: Asphalt compositions are provided containing a ductility improving amount of a refinery stream obtained in the form of a bottoms fraction from a thermofor catalytic cracking or fluid catalytic cracking operation.Type: GrantFiled: October 17, 1975Date of Patent: June 10, 1980Assignee: Mobil Oil CorporationInventors: Wilton F. Espenscheid, Tsoung Y. Yan
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Patent number: 4202701Abstract: This disclosure relates to a new organic base, asbestos-free, asphalt-aluminum coating composition for use on roofs and the like. By the use of a gelling agent in place of asbestos fiber, a product with superior reflectivity is obtained which contains less aluminum than typical asbestos-containing coatings. In addition, since no water is used in the formulation of the composition, the possibility of producing such undesirable by-products as hydrogen gas or aluminum hydroxide is virtually eliminated.Type: GrantFiled: August 29, 1977Date of Patent: May 13, 1980Assignee: Mortell CompanyInventors: Bruce A. Radebaugh, Paul J. O'Connor, Howard J. Fischer
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Patent number: 4188235Abstract: This invention provides a novel asphalt composition suitable for use as a binder for carbon electrodes which consists essentially of a homogeneous blend of three organic materials comprising (1) a highly aromatic hydrocarbon solvent having a specific combination of physical properties and chemical constituency, (2) a benzene-soluble fraction of solvent-refined coal and/or solvent-refined wood, and (3) a benzene-insoluble fraction of solvent-refined coal and/or solvent-refined wood. The novel asphaltic compositions is characterized by low sulfur content and high binding strength, which are desirable properties for application as a carbon electrode binder.Type: GrantFiled: January 6, 1978Date of Patent: February 12, 1980Assignee: Mobil Oil CorporationInventors: Wilton F. Espenscheid, Tsoung-Yuan Yan
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Patent number: 4188279Abstract: This invention provides novel electrode formulations which consist of solid carbonaceous filler, binder pitch, and an additive selected from phosphorus-containing and boron-containing compounds such as phosphorous pentoxide and boric acid.Type: GrantFiled: January 6, 1978Date of Patent: February 12, 1980Assignee: Mobil Oil CorporationInventor: Tsoung-Yuan Yan
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Patent number: 4168987Abstract: An asphaltic coating and sealing substance comprised of a mixture of asphalt primer, asphalt coating, and asphalt sealer compounds, each of which comprises a specific asphalt base material mixed with a specified solvent. The resulting substance possesses desired individual properties of penetration, bonding, sealing, and set-up times to provide an effective single product particularly useful for one-step gravel roof rejuvination.Type: GrantFiled: April 22, 1977Date of Patent: September 25, 1979Inventor: John O. Blackmon, Sr.
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Patent number: 4168179Abstract: Asbestos-free bituminous composition comprising 1-3 wt% high-structure carbon black and 1 to 25 wt% expanded perlite dispersed in asphalt cutback. The composition also contains 0.5 to 5 wt% water.Type: GrantFiled: January 30, 1978Date of Patent: September 18, 1979Assignee: GAF CorporationInventor: William F. Hesseler
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Patent number: 4168178Abstract: Asbestos-free bituminous composition comprising 3-12 wt% high structure carbon black dispersed in asphalt cutback.Type: GrantFiled: January 30, 1978Date of Patent: September 18, 1979Assignee: GAF CorporationInventor: William F. Hesseler
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Patent number: 4151003Abstract: Methods of modifying the viscosity of bituminous materials in which a fluoro or chlorofluoro derivative of a lower alkane is mixed therewith, and processes involving and employing products so modified.Type: GrantFiled: March 1, 1976Date of Patent: April 24, 1979Assignee: Otisca Industries, Ltd.Inventors: Clay D. Smith, Douglas V. Keller, Jr.
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Patent number: 4142903Abstract: A corrosion resistant coating composition is provided which is a one-quart system. The composition is an asphaltic-base material containing a petroleum sulfonate and a sufficient amount of an organic solvent to impart the desired viscosity. A source of amine groups, such as a polyamide resin, is added and the resulting composition has improved adherence to the metallic substrate.Type: GrantFiled: October 25, 1977Date of Patent: March 6, 1979Inventor: Michael Antonelli, Sr.
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Patent number: 4139397Abstract: This invention provides a process for producing road paving asphalt compositions which involves heating an admixture of coal tar and fluidized catalytic cracking syntower bottoms until a homogeneous solubilized product with asphaltic properties is formed. The preferred asphalt compositions have a quantity of scrap rubber incorporated and dissolved therein.Type: GrantFiled: May 27, 1977Date of Patent: February 13, 1979Assignee: Mobil Oil CorporationInventor: Tsoung-Yuan Yan
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Patent number: 4133352Abstract: A composition especially useful as a primer coating having improved hot line adhesion and cathodic disbonding resistance comprises a solution of chlorinated rubber and aromatic petroleum pitch in a solvent.Type: GrantFiled: October 21, 1977Date of Patent: January 9, 1979Assignee: Lion Oil CompanyInventor: Russell E. Koons
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Patent number: 4108681Abstract: Asphaltic material is dissolved by contact with a solvent composition for a time sufficient to dissolve the asphaltic material wherein the solvent composition is comprised of a liquid heavy aromatic solvent having a high flash point and a fused heterocyclic ring compound or compounds soluble in the heavy aromatic solvent. In another embodiment, the asphaltic material is the binder material of a degraded organic residue whereby dissolution of the asphaltic material enables the convenient disintegration of the degraded organic residue. In still another embodiment, the solvent composition is the oil phase of an oil-water emulsion.Type: GrantFiled: May 9, 1977Date of Patent: August 22, 1978Assignee: Halliburton CompanyInventors: Michael B. Lawson, Kenneth J. Snyder
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Patent number: 4094696Abstract: An improved asphalt emulsion composition comprises an oil phase having minor amounts of gilsonite and naphtha and a major amount of asphalt, and a water phase having water and a small amount of a cationic emulsifying agent, wherein the ratio between the oil and water phases is between about 1:1 and 2:1 by weight respectively, the asphalt having a distillation residue penetration of less than 40 dmm at 77.degree. F (25.degree. C).Type: GrantFiled: May 17, 1976Date of Patent: June 13, 1978Inventor: Michael V. Burris
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Patent number: 4089698Abstract: An asphaltene concentrate characterized by its high softening point and by its high viscosity when in the liquid state is rendered into a pumpable form at ambient temperatures by conducting the asphaltene concentrate in liquid state directly from the precipitation zone at a high temperature, or from an intermediate heating zone wherein it attains a sufficiently high temperature, into a moving stream of water, whereupon the asphaltene concentrate immediately solidifies into lumpy or string-like particles. These particles are mixed with water and the mixture is subjected to a grinding operation which converts it to a thick suspension or semipaste which is thixotropic in nature and exhibits an apparent low viscosity at ambient temperatures, making it readily pumpable.Type: GrantFiled: November 12, 1973Date of Patent: May 16, 1978Assignee: Exxon Research & Engineering Co.Inventor: Luke W. Corbett
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Patent number: 4089340Abstract: Methods of modifying the viscosity of hydrocarbonaceous materials in which a fluoro or chlorofluoro derivative of a lower alkane is mixed therewith, and processes involving and employing products so modified.Type: GrantFiled: March 1, 1976Date of Patent: May 16, 1978Assignee: OTISCA Industries, Ltd.Inventors: Clay D. Smith, Douglas V. Keller, Jr.
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Patent number: 4088505Abstract: There is disclosed herein oil-in-water anionic bituminous emulsions which comprise from about 30% to about 75% by weight of the emulsion of bitumen as the dispersed phase, and from about 0.1% to about 10.0% by weight of an anionic emulsifier consisting of an alkali metal salt of an alkali lignin, an ethylene oxide adduct of phenol, and water in an amount to make up 100% by weight as the continuous phase. Additionally, improved pumping times are obtained with the addition of from 1% to about 10% by weight of sodium borate.Type: GrantFiled: January 27, 1976Date of Patent: May 9, 1978Assignee: Westvaco CorporationInventor: Howard H. Moorer