With Flux Patents (Class 106/279)
  • Patent number: 11578268
    Abstract: An improved surface material is particularly suited for non-turf baseball field applications such as the pitcher's mound and base paths. The material generally comprises clay, wax, Foots oil and sand and has a putty-like consistency. Cleats can penetrate the material but are not likely to pull it out in clumps upon removal of the cleats. Method for forming the surface includes pre-coating the soil with Foots oil and then spraying an emulsified wax on a surface and mixing it with the surface material.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: February 14, 2023
    Inventors: Jonathan W. Hubbs, Clayton D. Hubbs
  • Patent number: 10941296
    Abstract: A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150° F. and 550° F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 9, 2021
    Assignee: PRI Asphalt Technologies, Inc.
    Inventor: Kenneth F. Grzybowski
  • Patent number: 10131788
    Abstract: The disclosure relates to a bituminous composition and to the method of preparation thereof. The bituminous composition includes a bitumen, a first additive including at least one fatty acid ester function, saturated or unsaturated, linear or branched, having a hydrocarbon chain with 4 to 36 carbon atoms, optionally substituted by at least one hydroxyl group and a second additive comprising at least one organogelator. The disclosure also relates to the use of a combination of the first and second additives in a bituminous composition, for lowering the dynamic viscosity of a bituminous composition or of a bitumen base at a temperature above or equal to 80° C., preferably above 80° C., without impairing the consistence of the composition at the temperatures of use. Finally, the disclosure relates to the use of these bituminous compositions in the fields of highway applications, in particular in the manufacture of highway binders, and in the fields of industrial applications.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: November 20, 2018
    Assignee: Total Marketing Services
    Inventors: Dominique Basset, Régis Vincent
  • Patent number: 10093836
    Abstract: A self-adhesive wrap product includes a non-woven material layer impregnated with a wax formulation. The wax formulation has microcrystalline wax, mineral oil, polypropylene glycol, and soy oil. The self-adhesive wrap product is particularly suitable for minimizing a corrosion of metal components wrapped with the self-adhesive wrap product.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 9, 2018
    Assignee: T-VAC, INC.
    Inventor: John Christman
  • Patent number: 9828506
    Abstract: Asphalt compositions comprising reclaimed asphalt and an ester-functional rejuvenating agent derived from tall oil are disclosed. Rejuvenated binder compositions are also included. The rejuvenating agents restore to reclaimed asphalt desirable properties of virgin asphalt. Reduced glass-transition onset temperatures and improved creep stiffness in the rejuvenated binders translate to improved low-temperature cracking resistance in the asphalt. The rejuvenating agents impart desirable softening at low dosage while also maintaining acceptable penetration values. Dynamic shear rheometry results demonstrate that criteria for asphalt compositions under low, intermediate, and high temperature conditions can be achieved, and the asphalt will have good fatigue cracking resistance and rutting avoidance. The rejuvenating agents reduce the temperature needed to compact or mix asphalt compositions, which conserves energy and reduces cost.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: November 28, 2017
    Assignee: Kraton Chemical, LLC
    Inventors: William Lewis Grady, Tresha Overstreet, Charles David Moses, David Jan Cornelius Broere, Laurent Porot
  • Patent number: 9394652
    Abstract: The present invention provides a functionally dry warm mix asphalt binder composition modified with lubricating agents or additives that can be mixed with aggregate and compacted at temperatures substantially below asphalt binder compositions that do not contain the disclosed lubricating additives.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: July 19, 2016
    Assignees: A.L.M. HOLDING CO., Ergon Asphalt & Emulsions, Inc.
    Inventors: Gerald H. Reinke, Gaylon L. Baumgardner, Steven L. Engber
  • Patent number: 8926741
    Abstract: The present invention relates to a process for producing cold bituminous mixes, comprising the following successive steps: a. in a mixer, coating, at ambient temperature, all of the solid mineral fractions with all of the binder in emulsion, and optionally a portion of fluxing agent, over a time interval T sufficient to observe a coating of the mix; then b. at the end of the time interval T, adding the remaining amount of fluxing agent, over a time interval t, such that the T/t ratio is greater than 2, the other mixing conditions of steps a) and b) being otherwise substantially identical. The present invention also relates to cold bituminous mixes, capable of being obtained by the process according to the invention and the use thereof for the production of wearing courses, the production of emulsion-stabilized gravels or the production of storage-grade mixes.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: January 6, 2015
    Assignee: Eurovia
    Inventors: Frederic Delfosse, Mathieu Garbay
  • Publication number: 20140033951
    Abstract: An asphalt mixture includes bitumen partially or in totality proceeding from construction materials, the bitumen having been regenerated using a fatty acid ester which is obtained from esterified vegetable oil.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 6, 2014
    Applicant: LAFARGE
    Inventors: Mohsen Ech, Patrick Tintillier, Hassan Baaj, Nicolas Richard
  • Patent number: 8268066
    Abstract: It has been unexpectedly found that the solvent extracted aromatic cut of heavy vacuum gas oil can be oxidized to produce an adhesive composition that has all the needed attributes of a self seal adhesive for asphalt roofing shingles. This self seal adhesive composition offers numerous benefits and advantages over conventional self seal adhesives for roofing applications. For instance, it does not require any volatile organic solvents and is accordingly environmentally friendly. Additionally, it does not contain any asphalt or polymers and will not phase separate and accordingly offers excellent long term stability.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: September 18, 2012
    Assignee: Building Materials Investment Corporation
    Inventor: William K. Longcor, IV
  • Patent number: 8206500
    Abstract: A Performance Grade asphalt mix composition is provided which contains i) an asphalt extender containing the residue from the purification process of used/waste lubricating oil; ii) liquid asphalt cement; iii) asphalt bearing waste materials; and iv) aggregates. The invention further relates to a method of preparing the asphalt composition and a paving composition containing same.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: June 26, 2012
    Assignee: Shelbyville Asphalt Company, LLC
    Inventors: Mark R. Mathis, Bobby G. Upchurch, Albert B. Kinman
  • Patent number: 8099218
    Abstract: A method of operating a paving system includes establishing a plan for paving a work area which is based on a positional temperature model. The method further includes receiving temperature data for paving material and comparing the temperature data with data predicted by the positional temperature model. Operation of the paving system is adjusted where actual data differs from model predicted data. A paving system and control system are provided having an electronic control unit configured to compare electronic temperature data with a positional temperature model for paving material. The electronic control unit can control machines of the paving system based on comparing actual data with model predicted data, and can further update either or both of a plan for paving a work area and the positional temperature model itself based on differences between actual data and model predicted data.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 17, 2012
    Assignee: Caterpillar Inc.
    Inventors: Katherine C. Glee, Dean R. Potts, Paul T. Corcoran, Terry L. Rasmussen
  • Patent number: 7951238
    Abstract: A method for preparing a fluxing oil, having an iodine number ranging from 50 to 200, based on fatty substances of natural origin having been chemically functionalized by oxidation, includes the steps of: i) providing a fatty substance or a mixture of fatty substances of natural origin, ii) subjecting the fatty substance or the mixture of fatty substances of natural origin to at least one transesterification or esterification reaction by at least one alkanol or mono-alcohol, iii) subjecting the compound or mixture of compounds obtained at step ii) to at least one chemical functionalization reaction by oxidation introducing at least one functional group selected from carboxylic acid, epoxy, peroxide, aldehyde, ether, ester, alcohol and ketone groups, and iv) collecting the fluxing oil.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: May 31, 2011
    Assignees: Colas, Valagro, Centre de Valorisation Industrielle des Agroressources
    Inventors: Christine Deneuvillers, Lê Chiên Hoang
  • Patent number: 7900266
    Abstract: It has been unexpectedly found that the solvent extracted aromatic cut of heavy vacuum gas oil can be oxidized to produce an adhesive composition that has all the needed attributes of a self seal adhesive for asphalt roofing shingles. This adhesive composition does not require any volatile organic solvents and is accordingly environmentally friendly. It does not contain any asphalt or polymers and will not phase separate. Thus, it offers excellent long term stability. Additionally, it is made by the simple oxidation of the solvent extracted aromatic cut of heavy vacuum gas oil and is accordingly relatively inexpensive. The subject invention more specifically reveals an asphaltic roofing shingle comprising a back surface and an exposure surface, wherein the back surface is covered with an oxidized solvent extracted aromatic cut of heavy vacuum gas oil.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: March 1, 2011
    Assignee: Building Materials Investment Corporation
    Inventor: William K. Longcor, IV
  • Publication number: 20090249978
    Abstract: A process is provided for producing an improved asphalt composition is air blown for a reduced period of time prior to addition of polyphosphoric acid. The air blowing process is performed at temperatures and using air volumes typically used for air blown asphalt. The process may be performed using neat asphalt, or it may be used on mixtures of asphalt with flux, slop, or mixtures of flux and slop. After the initial air blowing period, polyphosphoric acid is added to the asphalt. The polyphosphoric acid may be added while the asphalt is at temperature, or the asphalt may be allowed to cool slightly before the addition of the polyphosphoric acid. Following addition of the polyphosphoric acid, the asphalt may undergo further air blowing to obtain desired properties.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 8, 2009
    Inventors: Jean-Valery Martin, Gaylon Lynn Baumgardner, Andrew Michael Menapace, John Medford Dumas
  • Patent number: 7097703
    Abstract: A sealer base comprising at least one anti-wear agent comprising aliphatic carboxylic acids and aliphatic polyamides is disclosed.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 29, 2006
    Assignee: Marathon Ashland Petroleum Co.
    Inventors: David C. Boyer, Patricia K. Doolin, Melvin D. Kiser
  • Patent number: 7001453
    Abstract: A method of selecting an asphalt binder for use in constructing a high modulus layer of bituminous pavement is provided. This method includes measuring the complex shear modulus of one or more binders at a temperature of not more than about 30° C., measuring the creep stiffness of one or more binders at a temperature near the lowest in-service temperature at the depth of the layer at which the bituminous pavement is being placed, and selecting an asphalt binder for the high modulus layer using the complex shear modulus and creep stiffness measurements. A further aspect of the present invention is a method of formulating an asphalt binder that has a desirable complex shear modulus and creep stiffness for use in making the high modulus layer. This method of formulation includes mixing a stiff asphalt binder and a soft asphalt binder together to form a binder having a complex shear modulus of at least about 2 MPa at 30° C.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: February 21, 2006
    Assignee: Koch Performance Roads, Inc.
    Inventors: Dario Perdomo, Richard K. Steger, Joseph Drbohlav, III
  • Patent number: 6987207
    Abstract: The present invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an additive composition comprising soy methyl ester, at least one aldehyde and/or at least one ketone, and at least one carboxylic acid ester in addition to the soy methyl ester.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 17, 2006
    Inventor: Alan Jeffrey Ronyak
  • Patent number: 6972047
    Abstract: It has been discovered that a synthetic flux oil can contain and deliver asphaltites, such as gilsonite, more easily and readily to an asphalt to improve its properties. The synthetic flux oil includes the asphaltite and a carrier oil. Depending on the nature of the carrier oil, the synthetic flux oil may or may not need to be heated during mixing and incorporation into the asphalt.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: December 6, 2005
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, Kevin P. Kelly, Paul J. Buras, Bill Lee
  • Patent number: 6802897
    Abstract: A slurry mixture of sulfur in a liquid carrier comprising an ester derived from vegetable oils or animals fats such as biodiesel is disclosed. Also disclosed is a method of preparing a mixture of asphalt, polymer and sulfur comprising blending together, at asphalt blending conditions, the asphalt and a slurry of sulfur particles in a biodiesel liquid carrier comprising an ester derived from vegetable oils or animal fats.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: October 12, 2004
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: Kenneth R. Lackey, James R. Alcorn, II
  • Patent number: 6764542
    Abstract: A cutback asphalt and an asphalt emulsion comprising biodiesel is disclosed. Cutback is mixed with a sufficient amount of biodiesel to reduce the viscosity of the asphalt, producing, e.g., a cold patch material which is free of added liquid petroleum. An asphalt emulsion of fine particles of asphalt, water and, preferably, an emulsifier, can be formed which is free of added liquid petroleum.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: July 20, 2004
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: Kenneth R. Lackey, James R. Alcorn, II
  • Patent number: 6361591
    Abstract: A better asphalt based sealer for driveways and the like is disclosed. The material uses as a hybrid sealer base or binder comprising a blend of pitch, asphaltic material and cut-back oil as a partial or complete replacement for pure coal tar materials. Driveway sealer (an emulsion of clay, water and binder) made with this hybrid binder has significantly better durability and color than like materials made with a binder of asphalt and cut-back oil. The hybrid binder has less odor and fewer toxins than a binder made of pure coal tar material.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: March 26, 2002
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: D. Chris Boyer, Patricia K. Doolin
  • Patent number: 6203606
    Abstract: The present invention relates to Performance Grade asphalt and a method for producing the same. The process includes adding a performance grade modifier and aggregates to an asphalt cement. The performance grade modifier reduces the high temperature limit and the low temperature limit of the performance grade asphalt in a ratio of about 1:1. A vacuum distilled component of recycled used lubricating oil is used as the performance grade modifier. The recycled used lubricating oil is added to the base oil and aggregate in sufficient quantities to achieve the selected operating temperature range.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 20, 2001
    Assignee: Texaco Inc.
    Inventors: Bruce R. Bond, Foster L. Wade
  • Patent number: 6074469
    Abstract: A paving asphalt composition for improving the durability and longevity of asphalt road surfaces is disclosed. The paving asphalt composition includes asphalt base stock, heavy residuum of re-refined motor oil, and a chemical modifier. The heavy residuum of re-refined motor oil preferably has an API gravity of at least about 12, a kinematic viscosity greater than about 400 centistokes at 140.degree. F., a flash point greater than about 400.degree. F. and a mass loss less than about 3%. The paving asphalt composition may also include a polymer. A method of forming the paving asphalt composition and a method of paving roads are also disclosed.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 13, 2000
    Assignee: Petro Source Refining Partners
    Inventors: James H. Collins, Glenn R. Jones
  • Patent number: 6045608
    Abstract: An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and fine aggregate. During this mixing process, the admixture is heated to produce the asphaltic concrete. In the improved process from about 20 to about 80 percent tar sand is mixed with from about 80 to about 20 percent aggregate and from about 1 to less than about 5 percent liquid asphalt cement in a drum mixer to form an admixture, heating the admixture to a first elevated temperature (e.g., 250.degree. and 400.degree. F.) for a set period of time (e.g., 40 to about 90 seconds); and discharging the heated admixture at a second elevated temperature (e.g., from about 150.degree. to about 350.degree. F.) to produce asphaltic concrete.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 4, 2000
    Assignee: Ned B. Mitchell, Inc.
    Inventors: Gil N. Mitchell, Ned B. Mitchell
  • Patent number: 6027557
    Abstract: Paraffinic fluxing components, e.g., paraffinic base stocks such as neutral oils or foots oil, can be added to asphalt composition and the resulting blend oxidized, e.g., by blowing, to improve low temperature properties at low addition rates (e.g., oil 1-5 wt. %). The resulting asphalt compositions exhibit important improvements in low temperature properties, resistance to thermal cracking and expanded useful temperature range.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 22, 2000
    Assignee: Marathon Ashland Petroleum LLC
    Inventor: Roger E. Hayner
  • Patent number: 5961709
    Abstract: An environmentally improved asphalt paving composition which contains a solvent-precipitated asphaltene, such as solvent deasphalting bottoms, and a viscosity reducing amount of paraffinic fluxing component, e.g., 325 Neutral Oil.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: October 5, 1999
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: Roger E. Hayner, Patricia K. Doolin, James F. Hoffman, Robert H. Wombles
  • Patent number: 5911817
    Abstract: Mineral lubricant base oils (e.g., neutral oils) can be added to asphalt composition to improve low temperature properties at low addition rates (e.g., oil 1-5%). Rerefined oils (boiling above about 177.degree. C. (350.degree. F.)) have the same properties as virgin mineral lubricant base oils, but most rerefmed oils are too dark in color to be used as lube oil base stocks. Their use in asphalt would be ideal as color is not a problem and they are much cheaper in cost than virgin base oils. This can permit disposing of rerefined motor oil. The resulting asphalt compositions exhibit important improvements in low temperature properties, resistance to thermal cracking and expanded useful temperature range.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: June 15, 1999
    Assignee: Marathon Ashland Petroleum LLC
    Inventor: Roger E Hayner
  • Patent number: 5904760
    Abstract: Mineral lubricant base oils (e.g., neutral oils) can be added to asphalt composition to improve low temperature properties at low addition rates (e.g., oil 1-5%). Rerefined oils (boiling above about 177.degree. C. (350.degree. F.)) have the same properties as virgin mineral lubricant base oils, but most rerefined oils are too dark in color to be used as lube oil base stocks. Their use in asphalt would be ideal as color is not a problem and they are much cheaper in cost than virgin base oils. This can permit disposing of rerefined motor oil. The resulting asphalt compositions exhibit important improvements in low temperature properties, resistance to thermal cracking and expanded useful temperature range.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: May 18, 1999
    Assignee: Marathon Ashland Petroleum LLC
    Inventor: Roger E Hayner
  • Patent number: 5762699
    Abstract: A composition for coating and treating aggregate intended for use in paving applications is a blend of high temperature coal tar pitch combined with coal tar oils resulting from distilling high temperature coke oven tar to pitch having a softening point from between 100.degree. to 400.degree. F. cube in Air. The oil blend having a distillation curve to 300.degree. C. ASTM D 158 is shown in Table I, in separate embodiments as shown in columns I and II.TABLE I ______________________________________ Compositions I II ______________________________________ Aromatic Residue 0-15% 2.5-4.5% Top Tar 30-45% 0-15% BCO Tar Oil 0.005-12.4% 0.005-12.4% Heavy Oil 0.005-12.4% 0.005-12.4% Solvent 25-35% 20-35% ______________________________________This blend of coal tar pitch and oils is optionally further blended with 0.10 to 15.00% aromatic residue from fluidized catalytic cracking or thermofor catalytic cracking and thinned to the desired viscosity.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: June 9, 1998
    Assignee: K.A.E. Paving Consultants, Inc.
    Inventor: Edward W. McGovern
  • Patent number: 5755865
    Abstract: A composition for rejuvenating asphalt comprises between 5-25% by weight shale oil modifier and between 75-95% by weight asphalt cement. The asphalt cement may consist of an AC-10 binder or an AC-20 binder. The shale oil modifier is made of dehydrogenated crude shale oil, the shale oil modifier exhibiting non-Newtonian properties when mixed with asphalt cements. A recycled asphalt pavement consists of the above-described rejuvenating composition and an aggregate composition comprising between about 30-40% recycled asphalt pavement and between about 60-70% virgin aggregate. A method for rejuvenating asphalt pavement includes milling and collecting a select thickness of asphalt pavement of a portion of an existing roadbed. A shale oil modified asphalt comprising between about 5-25% shale oil modifier and 75-95% asphalt cement is provided.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: May 26, 1998
    Assignee: The New Paraho Corporation
    Inventor: Larry A. Lukens
  • Patent number: 5695555
    Abstract: A paving asphalt cement for use in preparing a paving asphalt comprises from about 5 to about 90 weight % of a catalytically oxidized paving asphalt precursor, from about 10 to about 95 weight % of a unoxidized paving asphalt precursor and, from about 1 to about 25 weight % of a heavy vacuum gas oil.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: December 9, 1997
    Assignee: Petro Canada
    Inventors: Nabil Kamel, Laverne Miller
  • Patent number: 5492562
    Abstract: The present invention relates to asphalt shingles containing one or more chloride salts. The shingles disclosed herein remain flexible and pliant at sub-freezing temperatures, thereby preventing snow and ice from creeping underneath the shingles. The shingles are comprised of from 13 to 31% by weight of a chloride salt selected from the group consisting of calcium chloride, magnesium chloride hexahydrate, potassium chloride, sodium chloride, and mixtures thereof; and from 87 to 69% by weight asphalt.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: February 20, 1996
    Inventor: Dana M. Pettinato
  • Patent number: 5089052
    Abstract: A method for emulsification of rock asphalt, the resulting low asphalt emulsion and low asphalt emulsion binder for aggregate is disclosed. Fine mesh rock asphalt is emulsified by using a hydrocarbon fluxing agent to sufficiently wet the rock asphalt to produce a fluid mixture, followed by addition of water, small amounts of surfactant and salts, heating the fluid mix while the mixture is being gently stirred. The rock asphalt emulsion can be formed from rock asphalts having low asphalt content, as low as 5, 6, or 7% by weight and greater. Depending on the rock asphalt ore source, the emulsion is comprised of varying amounts of hydrocarbon fluxing oils which are present in sufficient volume to form a fluid mix, from less than about 25% to greater than matching parts by volume of water, and lesser amounts of surfactants and salts. These emulsions have been found to be effective as binders for limestone aggregate coatings, seal, coats, pliable mats and other surprising applications.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: February 18, 1992
    Inventor: Allen C. Ludwig
  • Patent number: 4975176
    Abstract: The process permits to produce bitumens having a high penetration value by oxidation of base bitumens with small volumes of gaseous oxidizers, preferably air, at a temperature between 170.degree. and 250.degree., preferably 200.degree. C., by turbodispersion of the gaseous phase in the bituminous mass by means of a rapid turbodisperser.By adding appropriate fluxes and operating in the presence of catalysts, the technological characteristics of the end product can be varied until obtaining blends of bitumens that are adapted for new applications.The turbodisperser is provided with an impeller constituted by a plane disk carrying on its periphery a series of teeth made preferably with the active side located on the diameter of the impeller and the angle at the vertex greater than 45.degree..
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: December 4, 1990
    Inventors: Fernando Begliardi, Alessandro Cori
  • Patent number: 4904305
    Abstract: A novel asphaltic composition consisting of from about 2% to about 10% w/w of a hydrocracking residue which is the distillation residue obtained from a hydrocracking process of heavy crude oil in admixture with from about 98% to about 90% w/w of a conventional asphalt. These asphaltic compositions are especially useful when mixed with mineral aggregate to provide road mixes which lead to improved road construction or road paving.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: February 27, 1990
    Assignee: Nova Husky Research Corporation
    Inventors: Ludo Zanzotto, Albert J. Faber, Dennis P. Foley, Royston B. Jeffries, R. David Watson
  • Patent number: 4659389
    Abstract: Preparation of satisfactory asphaltic roofing fluxes from otherwise unsatisfactory fluxes is disclosed to involve addition of asphaltenes, and saturates in quantities which satisfy certain specified conditions. Air oxidation of a flux is shown to be surprisingly accelerated by the addition of highly branched saturates, especially in the presence of a carbonate oxidation catalyst.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: April 21, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Robert H. Wombles, Donald D. Carlos, Charles R. Gannon
  • Patent number: 4613376
    Abstract: A surfacing mass especially for outdoor use and mainly comprising a mixture of asphalt and a stone material having a low content of fine material. The mixture comprises a little amount of fibres of a type which is not solved or softens in the asphalt, preferably mineral fibres. The fibre material has an average diameter of between 1 and 5 .mu.m and is added in an amount of between 0.5 and 20% by weight calculated on the amount of asphalt. The invention also relates to a method of manufacturing such surfacing mass at a mixing temperature of 140.degree.-170.degree. C. or preferably 150.degree.-160.degree. C. both for the asphalt and the stone mass. Preferably the fibre material is admixed in the asphalt before the mixing thereof with the stone material. The fibre material may be admixed in the asphalt at an asphalt temperature which is higher than the mixing temperature for asphalt and stone material.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: September 23, 1986
    Assignee: Laxa Bruk AB
    Inventors: Nils-Olov Nilsson, Ingmar Andersson, Ulrik Sandberg, Eils Karlsson
  • Patent number: 4544411
    Abstract: Preparation of satisfactory asphaltic roofing fluxes from otherwise unsatisfactory fluxes is disclosed to involve addition of asphaltenes, and saturates in quantities which satisfy certain specified conditions. Air oxidation of a flux is shown to be surprisingly accelerated by the addition of highly branched saturates, especially in the presence of a carbonate oxidation catalyst.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: October 1, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Robert H. Wombles, Donald D. Carlos, Charles R. Gannon
  • Patent number: 4544410
    Abstract: 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: Grant
    Filed: November 4, 1983
    Date of Patent: October 1, 1985
    Inventors: Belane Karacsonyi nee Eva Spindler, Bela Racz, Istvan Boszormenyi, Laszlo Kiraly, Andras Medgyesi
  • Patent number: 4512806
    Abstract: Asphaltic materials (e.g., asphalt, bitumen, or pitch) are increased in flame-resistance and improved in other useful properties by use of a latent catalyst mixture which reacts upon heating to catalyze oxidation of the asphaltic material. The catalyst comprises halogenated organic compound which decomposes and releases halogen upon heating and an iron-containing compound adapted to react with the released halogen to form iron halide.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: April 23, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Joseph Graham
  • Patent number: 4483714
    Abstract: A nitrocellulose composition containing substantially no water consisting of a homogeneous phase comprising nitrocellulose and an organic liquid which is inert to isocyanate. The composition is suitable for compounding in polyurethane paint.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: November 20, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Matsuei Yamaue, Sadao Fukutomi, Seiichi Fukura, Fumihiko Sato
  • Patent number: 4430127
    Abstract: In accordance with this invention there are provided compositions of matter comprising a bitumen containing material and an epoxylated polyamine wherein at least two of the amino nitrogen atoms are separated by six carbon atoms. These compositions provide improved adhesion between aggregate materials and the bitumen containing material.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: February 7, 1984
    Assignee: Carstab Corporation
    Inventors: Raymond S. Dalter, Dennis W. Gilmore
  • Patent number: 4382989
    Abstract: 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: Grant
    Filed: October 26, 1981
    Date of Patent: May 10, 1983
    Assignee: Allied Corporation
    Inventors: Irving B. Chang, Robert E. Beckwith, Jr.
  • Patent number: 4349590
    Abstract: Glass substrates are provided, for example, glass fibers, with a substantially solvent insoluble coating of asphalt.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: September 14, 1982
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Charles E. Bolen, Edward R. Harrington, Alfred Marzocchi, Michael G. Roberts
  • Patent number: 4338137
    Abstract: A process for air-blowing asphalt in the presence of ferrous chloride and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of ferrous chloride.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: July 6, 1982
    Assignee: Chevron Research Company
    Inventor: Judson E. Goodrich
  • Patent number: 4328147
    Abstract: 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: Grant
    Filed: October 30, 1980
    Date of Patent: May 4, 1982
    Assignee: Allied Corporation
    Inventors: Irving B. Chang, Robert E. Beckwith, Jr.
  • Patent number: 4316829
    Abstract: 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: Grant
    Filed: September 25, 1980
    Date of Patent: February 23, 1982
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Michael G. Roberts
  • Patent number: 4298397
    Abstract: 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: Grant
    Filed: April 14, 1980
    Date of Patent: November 3, 1981
    Inventor: Michael V. Burris
  • Patent number: 4282038
    Abstract: A modified gilsonite based coil impregnant having improved sound suppression properties and rheologically controlled characteristics. In one form of the preferred embodiment, the gilsonite is modified by thermal depolymerization. In another form of the preferred embodiment, the gilsonite is modified by the addition of a process oil having a viscosity gravity constant of 0.97 and a viscosity in SSU at 100.degree. C. of 48.4 and comprising 29-36% by weight of the oil-gilsonite composition. To approximately 75-80% of modified gilsonite is added about 20-25% by weight of ethylenediamine bisstearamide to produce a mixture having a softening point of from 125.degree.-130.degree. C. and a viscosity at 170.degree. C. of from 78 to 118 centipoise.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: August 4, 1981
    Assignee: General Electric Company
    Inventor: Mason H. Earing
  • Patent number: RE39289
    Abstract: An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and fine aggregate. During this mixing process, the admixture is heated to produce the asphaltic concrete. In the improved process from about 20 to about 80 percent tar sand is mixed with from about 80 to about 20 percent aggregate and from about 1 to less than about 5 percent liquid asphalt cement in a drum mixer to form an admixture, heating the admixture to a first elevated temperature (e.g., 250° and 400° F.) for a set period of time (e.g., 40 to about 90 seconds); and discharging the heated admixture at a second elevated temperature (e.g., from about 150° to about 350° F.) to produce asphaltic concrete. Preferably, the aggregate has a gradation of 10 to 25 percent passing a #4 sieve, and the admixture has substantially no added fines.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: September 19, 2006
    Inventors: Gill N. Mitchell, Tawna Kay Mitchell, Ned B. Mitchell