With Solvent Or Dispersing Medium Patents (Class 106/278)
  • Patent number: 6623554
    Abstract: A useful composition for protecting metal equipment from corrosion and/or other damage comprises 1) gilsonite, which is a mined asphalt; and/or some other natural-origin or naturally-derived resin, 2) a naturally-derived solvent such as d-limonene and/or other terpenes, and 3) a naturally-derived non-drying plasticizer such as fatty acid triglycerides. 4) Optionally, additives for controlling rheology, viscosity, lubricity, corrosion rates etc. can be added to obtain specific properties which may be desirable. The invention also relates to a method of preventing corrosion or other damage to metal equipment by applying the above-mentioned coating to the equipment by spraying, rolling and/or brushing.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 23, 2003
    Assignee: Chemtek, Incorporated
    Inventor: Michael Gates Kinnaird
  • Patent number: 6559206
    Abstract: The invention consists of a bitumen/resin composite emulsion for a road surface protection layer against the attacks of petroleum derivates, realised by mixing a first emulsion comprising at least one resin with a second emulsion comprising a bituminous binder and a resin crosslinking agent. A pigmentary preparation and/or a load made of a filler or sand or a fine sand or their combinations, can be incorporated to the first emulsion, the second emulsion or into the composite emulsion resulting from the mixture of both emulsions. The loaded composite emulsion enables the realisation of thin film-type surface coatings made of one or several layers.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: May 6, 2003
    Assignee: Colas
    Inventors: Graziella Durand, Eric Godard, Jean-François Gal
  • Publication number: 20020152932
    Abstract: Coating compositions containing a bituminous material and an effective amount of a methyl/ethyl ester diluent for coating bulk solids are disclosed. The coating compositions of the present invention are particularly suited to reduce dust formation and cake formation in fertilizers.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 24, 2002
    Inventors: Glen R. Varnadoe, Stacy K. Spence
  • Publication number: 20020148388
    Abstract: Coating compositions containing a bituminous material and an effective amount of a methyl/ethyl ester diluent for coating bulk solids are disclosed. The coating compositions of the present invention are particularly suited to reduce dust formation and cake formation in fertilizer and coal.
    Type: Application
    Filed: January 22, 2002
    Publication date: October 17, 2002
    Applicant: ARR-MAZ Products, L.P.
    Inventors: Glen R. Varnadoe, Stacy K. Spence
  • Patent number: 6403659
    Abstract: An asphalt based sealer for driveways and the like is disclosed. The material uses a blend of solvent deasphalted (SDA) asphalt blended with a cutter stock as the binder or sealer base. Driveway sealer (an emulsion of clay, water and binder) made with this binder has acceptable durability and can be essentially free of coal tar pitch, greatly reducing the toxicity and odor of the sealer.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: June 11, 2002
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: D. Chris Boyer, Patricia K. Doolin
  • Patent number: 6384112
    Abstract: A bitumen emulsion comprising bituminous binder, emulsifier, and water. The bituminous binder comprises bitumen and an oxidised wax, and optionally one or more polymers. The incorporation of the oxidised wax into the bituminous binder provides modified bitumen with both a high softening point and a low enough viscosity to allow it to be emulsified. The emulsion may be used as a tack coat in applying a waterproofing layer to a roof base. The emulsion may be made using a static mixing emulsion process.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: May 7, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Nadjib Boussad
  • 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: 6306937
    Abstract: Fully oxidized cutback asphalts suitable for application in roofing, waterproofing, and sealing applications in all weather conditions, including as mastics and other sealants. Compositions according to the invention comprise unprecedented proportions of solids and asphalts yet remain workable to temperatures as low as 20° F. or below. In addition to fully-oxidized roofing-grade asphalts, preferred compositions according to the invention also comprise hydrophobic agents selected from the group comprising fatty acids and amine compounds and may be applied in rain or other wet conditions, and include polybutene or fatty acid peptizers to control the glass transition temperature of the completed mastic and thereby permit application of the composition at extremely low temperatures. Preferred embodiments optionally also comprise fillers such as cellulose fibers, diatomaceous earth, limestone, and asbestos for various advantageous purposes.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: October 23, 2001
    Inventor: John R. Fields
  • Patent number: 6245850
    Abstract: A reflective asphalt emulsion is formed by dispersing asphalt into a slurry of colloidal clay at high shear and thereafter blending titanium dioxide and diatomaceous earth filler, and optionally acrylic latex, at low shear into the emulsion of clay and asphalt to form a white to light gray emulsion having a soft consistency and good shelf life. Particle sizes of the employed asphalt are controlled in order to preserve reflectivity of the finished emulsion.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: June 12, 2001
    Inventor: John R. Fields
  • 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: 6065903
    Abstract: Methods are disclosed for preparation of chemically-stabilized emulsions of tall oil in water. Temperature and pH are controlled during preparation of the emulsions so as to prevent saponification and neutralization of acids in the tall oil component. The final emulsions have pHs in the range of from about 3.0 to 5.0 and remain phase stable for extended periods of time. Methods are disclosed for using the emulsions for soil treatment to improve soil stabilization and load bearing capacity for roadbed use, for treatment of reclaimed asphalt pavement for reuse as a stabilized base course for roadway construction and for remediation of heavy metal contaminated soil.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 23, 2000
    Assignee: Vinzoyl Technical Services, L.L.C.
    Inventor: Michael P. Doyle
  • Patent number: 6048904
    Abstract: The present invention is an asphaltene dispersant containing an aromatic, a sulfonic acid head, and an alkyl tail containing 16 carbons or more and at least one branch of a methyl or longer alkyl. Preferably, the aromatic is a fused two ring aromatic and the tail is a two, branched alkyl tail of 30 carbons or longer.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: April 11, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Irwin A. Wiehe, Ramesh Varadaraj, Torris G. Jermansen, Raymond J. Kennedy, Cornelius H. Brons
  • Patent number: 6000876
    Abstract: A semi-rigid asphalt concrete that can be produced under ambient temperature by applying traditional cement concrete production method. A high temperature heating and great pressure rolling that are necessary for producing asphalt concrete in conventional skills are never being constraints while producing the semi-rigid asphalt concrete. The method of producing the semi-rigid asphalt concrete generates less air pollution than the traditional method for producing hot mix asphalt concrete. The semi-rigid asphalt concrete consists of cationic emulsified asphalt, type-I cement, F-type superplasticizer, Na-Carboxymethyl Cellulose (Na-CMC), calcium chloride(CaCl.sub.2), stone dust, and III d, IV b, or VII a gradation aggregates. By applying the procedure of producing cement concrete, the semi-rigid asphalt concrete is completely produced after mixing, placing, and curing. The cationic emulsified asphalt and the F-type superplasticizer are first mixed to generate a mixture, and then pour the prepared CaCl.sub.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: December 14, 1999
    Assignee: Der-Hsien Shen
    Inventors: Der-Hsien Shen, Cheng-Tsung Lu
  • Patent number: 5895347
    Abstract: Methods are disclosed for preparation of chemically-stabilized emulsions of tall oil in water. Temperature and pH are controlled during preparation of the emulsions so as to prevent saponification and neutralization of acids in the tall oil component. The final emulsions have pHs in the range of from about 3.0 to 5.0 and remain phase stable for extended periods of time. Methods are disclosed for using the emulsions for soil treatment to improve soil stabilization and load bearing capacity for roadbed use, for treatment of reclaimed asphalt pavement for reuse as a stabilized base course for roadway construction and for remediation of heavy metal contaminated soil.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: April 20, 1999
    Assignee: Vinzoyl Technical Services, L.L.C.
    Inventor: Michael P. Doyle
  • Patent number: 5776234
    Abstract: This invention relates to rapid set, medium set, and slow set anionic emulsions prepared from straight bitumen or bitumen modified by the incorporation of polymers such as styrene butadiene rubbers (SBR), styrene block copolymers (SBS), ethylene vinyl acetate copolymers (EVA), and other suitable modifiers. The invention also relates to emulsions modified by the incorporation of solvents (such as diesel oil or kerosene) or by the addition of polymer latices (such as SBR-latex or natural rubber latex). More particularly, the invention relates to improved methods for enhancing adhesion between asphalt and aggregate in anionic solventless and solvent-containing bituminous emulsions wherein the emulsifiers are alkali earth salts of tall oil fatty acids, fortified tall oil fatty acids, tall oil rosin, and fortified rosin as well as combinations of kraft lignin and nonionic emulsifiers.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: July 7, 1998
    Assignee: Westvaco Corporation
    Inventor: Peter Schilling
  • 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: 5662733
    Abstract: The viscosity and gel strength of organic adhesive coating compositions containing an organic adhesive material, usually asphalt, and clay minerals and cationic surfactants is further enhanced by the addition of small quantities of acidic compounds which have pK.sub.A values less than about 5. The acidic compounds preferably are water soluble and contain phosphorus.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: September 2, 1997
    Assignee: Surface Chemists of Florida Inc
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 5580603
    Abstract: A pavement rejuvenating composition in which particular coal tar derivatives and other optional ingredients are admixed with one or more blackening agents. The blackening agent may be one or more of the following: soft coal tar pitch, aromatic cracked petroleum residue, silicone, aliphatic amine, carbon black or 0.01-2.0% by weight pavement dressing conditioner to give the desired blackening and pavement preservation effect.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: December 3, 1996
    Assignee: K.A.E. Paving Consultants, Inc.
    Inventor: Edward W. McGovern
  • Patent number: 5573586
    Abstract: Asbestos-free asphalt cold application roofing compositions are made available through the controlled utilization of fly ash.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 12, 1996
    Assignee: Gardner Asphalt Corporation
    Inventors: Michael L. Yap, Raymond T. Hyer, Barton J. Malina
  • Patent number: 5558704
    Abstract: A paving asphalt concrete composition consists essentially of an oil-impregnated vulcanized rubber crumb and an asphalt-aggregate mixture, in which the oil-impregnated vulcanized rubber crumb consist of 99-60% by weight of vulcanized rubber crumb and 1-40% by weight of an extending oil. This paving asphalt concrete composition is suitable for pavement of motorways, sidewalks, runways, taxiways, parking lots and the like.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: September 24, 1996
    Assignees: Bridgestone Corporation, Fukuda Road Construction Co., Ltd.
    Inventors: Kinji Masuda, Minoru Kuriki, Kozo Hokari
  • Patent number: 5529621
    Abstract: This invention is to surfactant compositions which are organic salts of a polyamine and a carboxylic acid. The polyamine has the structure: ##STR1## wherein R is (i) alkyl or alkenyl containing from about 10 to about 22 carbon atoms or (i) R'--O--CH2CH2CH2-- wherein R' is alkyl containing from about 8 to about 22 carbon atoms;A is a divalent hydrocarbyl group containing about 2 to about 6 carbon atoms;and n is an integer from about 1 to about 3.The carboxylic acid has the structure:R"--COOHwherein R" is alkyl or alkenyl containing about 6 to about 22 carbon atoms.The surfactants may contain polar activators.This invention is also to compositions containing asphalt, a clay mineral, and the above described surfactant.
    Type: Grant
    Filed: June 8, 1995
    Date of Patent: June 25, 1996
    Assignee: Surface Chemists of Florida Inc.
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 5503871
    Abstract: The present invention provides a method of sealing and priming a prepared substrate, such as a base or sub-base for a roadway, comprising the application of an amount of an emulsion consisting essentially of a first phase of a combination of resinous petroleum oil and an asphalt, a second phase of water, and suitable emulsifiers and stabilizers, where the ratios of the first asphalt and resinous oil phase to the second water phase in the total emulsion are from about a 1:1.8 to 1:11 ratio. The first phase comprises from about 0.3% to 21% asphalt (or equivalent compositions) and from about 3.3% to about 34% resinous petroleum oil (or oils with equivalent properties) based on the total weight of the emulsion. The second phase is of water which provides from about 62.5% to about 91.5% of the total weight of the emulsion. The emulsifiers and stabilizers are from about less than 0.16% to about 2.5% of the total weight of the emulsion. The emulsion may also include about 0.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: April 2, 1996
    Assignee: Blacklidge Emulsions, Inc.
    Inventors: Ronald W. Blacklidge, Timothy D. Rayburn
  • Patent number: 5501729
    Abstract: A pitch based impregnant for a carbon or graphite body and a method of impregnation. The method involves forming a liquid solution of a substantially solids free pitch having a Q.I. of less than 1% dissolved in furfural and containing an acid catalyst with the solution having a viscosity of less than 150 cps at room temperature and heating the impregnated body to between 150.degree.-200.degree. C. until the impregnant is cured.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: March 26, 1996
    Assignee: UCAR Carbon Technology Corporation
    Inventors: Irwin C. Lewis, Terrence A. Pirro
  • Patent number: 5494510
    Abstract: This invention provides for a method of producing an asphalt product which includes initially shredding scrap tires within a shredder system (14) where at least partially vulcanized rubber composition is formed into particulates less than approximately 2.0 mm in dimension. Metal is removed from the scrap tires and the resulting composition leaving the shredder system (14) is mixed in particular weight percentages with a chemical composition for insertion into a masticator system (28) which includes a first zone (42), a second zone (44), and a third zone (46). The masticator system (28) heats the composition entering to a temperature approximating 485.degree. F. in the first zone (42). The composition is then cooled to a temperature within the approximating range of 230.degree. F.-250.degree. F. in second zone (44) and then slightly re-heated to a temperature within the range of 290.degree. F.-350.degree. F. in the third zone (46).
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: February 27, 1996
    Inventor: John Kuc, Sr.
  • Patent number: 5472498
    Abstract: A lightweight aggregate comprising free-flowing particles of a polymer foam coated with a binding agent having dispersed therein, in total, at least 10% by weight thereof of one or more transition metal ions.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: December 5, 1995
    Assignee: BST Holdings PTY. Limited
    Inventors: Neville C. Stephenson, Gary P. Norton
  • Patent number: 5421876
    Abstract: An organoclay in which a quaternary long chain fatty amine is ionically bonded to clay platelets is found to function both as a filler or thickener as well as a compatibilizer in an asphaltic polyurethane (PUR) dispersion. When a PUR prepolymer is mixed into a homogenized blend of asphalt and organoclay under high shear, a phase inversion occurs the result of which is that a microdispersion of asphalt particles (preferably 1 .mu.m-44 .mu.m) becomes the dispersed phase which is uniformly scattered throughout the PUR prepolymer (the continuous phase). This dispersion is found to be an excellent adhesive, particularly for roofing components which can be secured without using conventional fasteners, and it is stable and moisture-curable to afford, when cured, an elastomer having excellent adhesion to surfaces exposed outdoors. It is also user-friendly because it is solvent-free. The asphalt is treated to react all functional groups it may have because they may react with a functional group of the PUR prepolymer.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: June 6, 1995
    Assignee: Tremco, Inc.
    Inventor: Ronald J. Janoski
  • Patent number: 5407477
    Abstract: Improved organophilic clay gellants for highly viscous systems such as asphalt and creosote can be prepared by a process wherein the smectite-type clay is gently dried and/or subjected to minimum or no grinding. The organophilic clay agent may be used to thicken a variety of organic compositions including pitch and heavy resins. In a preferred aspect, the organophilic clay gellant can be directly added to asphalt systems in order to efficiently and effectively modify the viscosity thereof without the use of either a polar activator as a dispersion agent or a preactivation agent.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: April 18, 1995
    Assignee: Rheox, Inc.
    Inventors: William Reynolds, Robert Van Doren, Charles A. Cody
  • Patent number: 5405439
    Abstract: A method for preparing a bitumen emulsion which comprises forming the emulsion from bitumen, water, emulsifying agent, inorganic acid and metal salt, said metal being selected from lithium, sodium, potassium, magnesium, calcium and aluminum wherein the bitumen emulsion has a viscosity of at least 200 cst at 25.degree. C., by the steps of: (a) feeding the bitumen into a first static mixer at a temperature above 50.degree. C.
    Type: Grant
    Filed: November 26, 1993
    Date of Patent: April 11, 1995
    Assignee: Esso Societe Anonyme Francaise
    Inventor: Jean L. Marchal
  • Patent number: 5378272
    Abstract: A composition useful in copying and printing is described. In one embodiment, the composition comprises a purified fraction of uintaite and a thermoplastic polymer. Preferably, the composition comprises a maltene-enriched fraction of uintaite derived by solvent extraction, a thermoplastic polymer and a colorant. In another embodiment, the present invention is an electrophotographic method comprising the steps of generating a latent electrostatic image; developing said latent image with a toner comprising a purified fraction of uintaite; and fixing said toner. The present invention is also a printing ink emulsion comprising a maltene-enriched fraction of uintaite.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: January 3, 1995
    Assignee: American Gilsonite Company
    Inventors: Enrique E. Romagosa, John F. Cooper, Michael Nuzzolo, Michael Lane
  • Patent number: 5362316
    Abstract: A cut-back composition useful for ambient temperature application to substrates comprising a resinous or residue-based component such as asphalt, polymer modified asphalt, coal tar, natural rubber or elastomers and a terpene solvent.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: November 8, 1994
    Assignee: Imperbel America Corporation
    Inventor: Richard W. Paradise
  • Patent number: 5340391
    Abstract: Improved cold-applied asphalt compositions for use as sealants, cements, coatings and the like, including recycled asphalt roofing wastes, and asphalt. Recycled roofing wastes provide an excellent, although unexpected, source of temperature-stable asphalt, stabilizing filler, and reinforcing fiber, which provides compositions having exceptional performance characteristics as well as the reduction or elimination of asbestos from such compositions. Use of asphalt roofing wastes allows for recycling of a non-renewable resource and provides an environmentally-safe alternative to landfill disposal of such materials.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: August 23, 1994
    Assignee: ReClaim, Inc.
    Inventor: Ken F. Grzybowski
  • Patent number: 5328505
    Abstract: Cationic aqueous bituminous emulsion-aggregate slurries are disclosed to be formed with cationic emulsions prepared at elevated temperatures by emulsifying bitumen, such as an asphalt, in water with a cation-active emulsifier which is the blend of the reaction of a polyamine or of a modified polyamine with certain polycarboxylic acids and glycol esters. The emulsifiers are obtained by reacting suitable polyalkylene amines with lignin and maleinized lignin or their blends with tall oil fatty acids and the reaction product of C.sub.8 -C.sub.15 alkylphenol with 30 to 100 moles of ethylene oxide.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: July 12, 1994
    Assignee: Westvaco Corporation
    Inventor: Peter Schilling
  • Patent number: 5322556
    Abstract: A process for preparing a sulfonated dispersant from a petroleum asphalt fraction, comprising:establishing contact between the asphalt fraction dissolved in an inert solvent and liquid or gaseous sulfur trioxide at a temperature equal to or less than 60.degree. C., to obtain a sulfonated asphalt fraction;salifying the sulfonated asphalt fraction thus obtained by contact with an aqueous solution of a hydroxide of an alkaline metal, alkaline earth metal or ammonium and recovering the sulfonated salt from the reaction mixture.This process provides water-soluble sulfonated salts of petroleum asphalt fractions, which can be used as fluidifying and stabilizing agents for aqueous dispersions of solids, such as aqueous dispersions of coal or cement.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: June 21, 1994
    Assignees: Eniricerche S.p.A., Snamprogetti S.p.A.
    Inventors: Aldo Prevedello, Edoardo Platone, Elio Donati
  • Patent number: 5296264
    Abstract: The present invention provides a method of sealing and priming a prepared substrate, such as a base or sub-base for a roadway, comprising the application of an amount of an emulsion consisting essentially of a first phase of a combination of resinous petroleum oil and an asphalt, a second phase of water, and suitable emulsifiers and stabilizers. The first phase comprises from about 0.25% to 21% asphalt and from about 3.33% to 33.95% resinous oil based on the total weight of the emulsion. The second phase of water provides from about 62.5% to 91.5% of the total weight of the emulsion. The emulsifiers and stabilizers are from about less than 0.16% to about 2.5% of the total weight of the emulsion. The contemplated ratios of the first asphalt and resinous oil phase to the second water phase in the total emulsion applied to the base course are from about a 1:1.8 to 1:11 ratio in the total emulsion.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: March 22, 1994
    Assignee: Blacklidge Emulsions, Inc.
    Inventors: Ronald W. Blacklidge, Timothy D. Rayburn
  • Patent number: 5268029
    Abstract: This invention provides cationic emulsions of bituminous binders of the bitumen/polymer type, formed by a dispersion of an organic phase of the binder in an aqueous phase containing a cationic nitrogenous emulsifier and a mineral or organic acid, the acid being in appropriate quantity so that the pH of the aqueous phase is comprised between 3 and 9. The aqueous phase also contains an agent consisting of at least one water-soluble sequestering salt of polyfunctional nitrogenized carboxylic acid, particularly a salt of alkaline metal or of amine of mono- and di (hydroxy-2 ethyl) glycine and optionally a water-soluble thickening agent. To obtain the emulsions, which are usable for road applications, the emulsifying agent, the sequestering agent and optionally the thickening agent may be used in the form of a premixture containing the agents and called cationic emulsifying system.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: December 7, 1993
    Assignee: ELF France
    Inventors: Francis Demangeon, Emile Lopez
  • Patent number: 5223032
    Abstract: The present invention is a particulated asphalt composition and process for producing same. The composition is a cold mix product for construction and repair of asphalt-containing products using asphalt particulate, roughage and solvent, with the asphalt to roughage ratio ranging from one part asphalt to between four and forty parts roughage, and with solvent comprising three to ten gallons per ton weight composition.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: June 29, 1993
    Inventors: Michael M. Gaudio, Christopher C. Guzaldo
  • Patent number: 5221338
    Abstract: The present invention is a particulated asphalt composition and process for producing same. The composition is a cold mix product for construction and repair of asphalt-containing products using asphalt particulate, roughage and solvent, with the asphalt to roughage ratio ranging from one part asphalt to between four and forty parts roughage, and with solvent comprising three to ten gallons per ton weight composition.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: June 22, 1993
    Inventors: Michael M. Gaudio, Christopher C. Guzaldo
  • Patent number: 5196058
    Abstract: A road construction material includes a hydrocarbon-laden mixture of fine aggregates and a hydrocarbon solvent, the hydrocarbon-laden fine aggregate mixture having a hydrocarbon content in a range of approximately five to twenty percent by weight and the hydrocarbon content including at least approximately 50 percent by weight light end crudes, the road composition material being made by cold-blending the hydrocarbon-laden fine aggregate mixture and the hydrocarbon solvent and marinating for a time sufficient to diffuse the hydrocarbon contents of the hydrocarbon-laden fine aggregates with the hydrocarbon solvent. There may also be added a light weight ceramic aggregate mixture for additional strength and stability. Heat stabilzing, anti-stripping agents and anti-track compounds may be added as desired.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 23, 1993
    Assignee: Uintah Resources, Inc.
    Inventor: Byron Merrell
  • Patent number: 5180428
    Abstract: A liquid modifier for topical application to in-situ aged asphalt pavement, said modifier being an emulsion and consisting essentially of the following components:a. a predominantly asphaltene asphalt;b. a predominantly maltene recycling agent;c. a rubbery polymer or latex selected from the group consisting of styrene-butadiene-styrene, styrene butadiene rubber, neoprene latex, and natural rubber, and combinations of one or more of them;d. an emulsifiere. watersaid emulsion being a flowable liquid so as readily to be poured onto a surface and brushed or wiped onto and into it, and readily to flow into and penetrate small cracks in the pavement, and when the water has evaporated, to form a structural bridge and bond between opposed faces of the cracks, and also to pentrate into the original asphalt pavement through said faces to improve its properties.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: January 19, 1993
    Inventor: Richard D. Koleas
  • Patent number: 5116413
    Abstract: A process is provided for feeding cables, wires, pipes etc. through a wall in such a way that the water- and/or gas resistance of the wall is maintained and that later on additional cables etc. can be passed through. The process uses a sealing agent comprising an intimate mixture of a water-swellable substance such as a clay and a hydrophobic substance such as vaseline. The sealing agent can be placed in a tubular device for providing water-tightness when making a bushing in a partially porous wall.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: May 26, 1992
    Assignee: Waterproof Coatings S.A.
    Inventor: Franciscus P. M. Nooren
  • Patent number: 5064472
    Abstract: A composition which comprises a solvent extract of peat or a pyrolysis product of peat or a montan wax and petroleum bitumen of the paving grade type.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: November 12, 1991
    Assignee: Foster Wheeler USA Corporation
    Inventors: John A. G. Drake, Ian L. Jamieson
  • Patent number: 5053080
    Abstract: A process for stabilizing asphalt is disclosed which requires mixing with the asphalt a stabilizing mixture composed of tall oil acid salts of alkali or alkaline earth metals in combination with free tall oil acid present in at least 30 molar percent of the total acid content.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: October 1, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: James M. Gaidis
  • 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: 4948431
    Abstract: A patch binder for road surface repair is capable of being sprayed under pressure onto existing road surfaces to foster seamless homogenizing and mending of existing road surface material with added asphalt patch material. The patch binder is composed of Toluene, Cyclohexanone, N-methylpyrrolidone, a surfactant and a black dye. It is non-hazardous to humans and to the environment, can be applied independent of weather and climate conditions, and lasts as long as the material of the road surface to which it is applied.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: August 14, 1990
    Inventors: Paul D. Strickland, Paul C. Doran
  • 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: 4902349
    Abstract: An asphalt/polyol emulsion is prepared from asphalt and polyol which are mixed and emulsified with a surface active agent and the plasticizer, by utilizing the behavior of a plasticizer according to the polymer solution theory and the surface-modifying effect of the plasticizer according to the surface chemistry.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: February 20, 1990
    Assignee: Toa Dora Kogyo Co., Ltd.
    Inventors: Saburo Wakizaka, Hiraku Hayasaka, Kazuki Hashimoto, Kentaro Shiojiri, Toshiaki Suzuki
  • Patent number: 4876130
    Abstract: A bituminous composition comprising:(a) from 99 to 85% w of a mixture of:(1) 45 to 99.8% w of a bituminous component having a penetration of at least 800 dmm at 25.degree. C.;(2) 0.1 to 30% w of a lithium salt of a C.sub.10-40 fatty acid or hydroxy fatty acid;(3) 0.1 to 25% w of an elastomer; and(b) from 1 to 15% w of an amorphous silica filler.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: October 24, 1989
    Assignee: Shell Oil Company
    Inventors: Willem C. Vonk, Gerrit van Gooswilligen
  • Patent number: 4759799
    Abstract: An improved asphalt roof-coating composition of the asbestos-free type which include asphalt cutback, clay, a surfactant, and fillers. An alkyloxyalkylamine salt surfactant, preferably an alkyloxypropylamine salt having an alkyl chain with from 10 to 20 carbon atoms is utilized in substantially lower amounts than required of surfactants in previous compositions. Excellent stable gel structure and easier blending are provided.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: July 26, 1988
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Stephen J. Vicenzi
  • Patent number: 4755278
    Abstract: This process for fractionating solid asphalts is operable under low temperature and pressure conditions.The process consists of treating a suspension of asphalt powder in a surfactant-containing aqueous phase by means of a hydrocarbon solvent immiscible with water and of separating:an hydrocarbon phase containing asphalt of softening point lower than that of the initial asphalt, andan aqueous phase wherein is suspended asphalt of softening point higher than that of the initial asphalt.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: July 5, 1988
    Assignee: Institut Francais du Petrole
    Inventor: Pierre Baumgartner
  • Patent number: 4755277
    Abstract: 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: Grant
    Filed: March 20, 1987
    Date of Patent: July 5, 1988
    Assignee: Shell Oil Company
    Inventors: Jacobus H. Breuker, Gerrit van Gooswilligen, Johannes L. M. Syrier