With Solvent Or Dispersing Medium Patents (Class 106/278)
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Patent number: 6623554Abstract: 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: GrantFiled: December 20, 2000Date of Patent: September 23, 2003Assignee: Chemtek, IncorporatedInventor: Michael Gates Kinnaird
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Patent number: 6559206Abstract: 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: GrantFiled: August 6, 2001Date of Patent: May 6, 2003Assignee: ColasInventors: Graziella Durand, Eric Godard, Jean-François Gal
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Publication number: 20020152932Abstract: 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: ApplicationFiled: February 15, 2001Publication date: October 24, 2002Inventors: Glen R. Varnadoe, Stacy K. Spence
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Publication number: 20020148388Abstract: 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: ApplicationFiled: January 22, 2002Publication date: October 17, 2002Applicant: ARR-MAZ Products, L.P.Inventors: Glen R. Varnadoe, Stacy K. Spence
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Patent number: 6403659Abstract: 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: GrantFiled: December 20, 1999Date of Patent: June 11, 2002Assignee: Marathon Ashland Petroleum LLCInventors: D. Chris Boyer, Patricia K. Doolin
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Patent number: 6384112Abstract: 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: GrantFiled: May 8, 2000Date of Patent: May 7, 2002Assignee: ExxonMobil Research and Engineering CompanyInventor: Nadjib Boussad
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Patent number: 6361591Abstract: 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: GrantFiled: December 20, 1999Date of Patent: March 26, 2002Assignee: Marathon Ashland Petroleum LLCInventors: D. Chris Boyer, Patricia K. Doolin
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Patent number: 6306937Abstract: 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: GrantFiled: October 28, 1999Date of Patent: October 23, 2001Inventor: John R. Fields
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Patent number: 6245850Abstract: 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: GrantFiled: April 2, 1998Date of Patent: June 12, 2001Inventor: John R. Fields
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Patent number: 6203606Abstract: 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: GrantFiled: November 20, 1998Date of Patent: March 20, 2001Assignee: Texaco Inc.Inventors: Bruce R. Bond, Foster L. Wade
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Patent number: 6065903Abstract: 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: GrantFiled: December 22, 1998Date of Patent: May 23, 2000Assignee: Vinzoyl Technical Services, L.L.C.Inventor: Michael P. Doyle
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Patent number: 6048904Abstract: 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: GrantFiled: December 1, 1998Date of Patent: April 11, 2000Assignee: Exxon Research and Engineering Co.Inventors: Irwin A. Wiehe, Ramesh Varadaraj, Torris G. Jermansen, Raymond J. Kennedy, Cornelius H. Brons
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Patent number: 6000876Abstract: 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: GrantFiled: July 16, 1997Date of Patent: December 14, 1999Assignee: Der-Hsien ShenInventors: Der-Hsien Shen, Cheng-Tsung Lu
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Patent number: 5895347Abstract: 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: GrantFiled: March 17, 1997Date of Patent: April 20, 1999Assignee: Vinzoyl Technical Services, L.L.C.Inventor: Michael P. Doyle
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Patent number: 5776234Abstract: 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: GrantFiled: August 12, 1996Date of Patent: July 7, 1998Assignee: Westvaco CorporationInventor: Peter Schilling
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Patent number: 5762699Abstract: 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: GrantFiled: May 5, 1997Date of Patent: June 9, 1998Assignee: K.A.E. Paving Consultants, Inc.Inventor: Edward W. McGovern
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Patent number: 5662733Abstract: 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: GrantFiled: April 10, 1996Date of Patent: September 2, 1997Assignee: Surface Chemists of Florida IncInventors: Alice P. Hudson, James E. Nevin
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Patent number: 5580603Abstract: 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: GrantFiled: April 27, 1995Date of Patent: December 3, 1996Assignee: K.A.E. Paving Consultants, Inc.Inventor: Edward W. McGovern
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Patent number: 5573586Abstract: Asbestos-free asphalt cold application roofing compositions are made available through the controlled utilization of fly ash.Type: GrantFiled: January 19, 1996Date of Patent: November 12, 1996Assignee: Gardner Asphalt CorporationInventors: Michael L. Yap, Raymond T. Hyer, Barton J. Malina
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Patent number: 5558704Abstract: 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: GrantFiled: July 13, 1995Date of Patent: September 24, 1996Assignees: Bridgestone Corporation, Fukuda Road Construction Co., Ltd.Inventors: Kinji Masuda, Minoru Kuriki, Kozo Hokari
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Patent number: 5529621Abstract: 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: GrantFiled: June 8, 1995Date of Patent: June 25, 1996Assignee: Surface Chemists of Florida Inc.Inventors: Alice P. Hudson, James E. Nevin
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Patent number: 5503871Abstract: 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: GrantFiled: March 21, 1994Date of Patent: April 2, 1996Assignee: Blacklidge Emulsions, Inc.Inventors: Ronald W. Blacklidge, Timothy D. Rayburn
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Patent number: 5501729Abstract: 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: GrantFiled: July 19, 1995Date of Patent: March 26, 1996Assignee: UCAR Carbon Technology CorporationInventors: Irwin C. Lewis, Terrence A. Pirro
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Patent number: 5494510Abstract: 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: GrantFiled: January 30, 1995Date of Patent: February 27, 1996Inventor: John Kuc, Sr.
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Patent number: 5472498Abstract: 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: GrantFiled: May 10, 1994Date of Patent: December 5, 1995Assignee: BST Holdings PTY. LimitedInventors: Neville C. Stephenson, Gary P. Norton
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Patent number: 5421876Abstract: 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: GrantFiled: October 18, 1993Date of Patent: June 6, 1995Assignee: Tremco, Inc.Inventor: Ronald J. Janoski
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Patent number: 5407477Abstract: 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: GrantFiled: August 16, 1993Date of Patent: April 18, 1995Assignee: Rheox, Inc.Inventors: William Reynolds, Robert Van Doren, Charles A. Cody
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Patent number: 5405439Abstract: 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: GrantFiled: November 26, 1993Date of Patent: April 11, 1995Assignee: Esso Societe Anonyme FrancaiseInventor: Jean L. Marchal
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Patent number: 5378272Abstract: 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: GrantFiled: August 26, 1993Date of Patent: January 3, 1995Assignee: American Gilsonite CompanyInventors: Enrique E. Romagosa, John F. Cooper, Michael Nuzzolo, Michael Lane
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Patent number: 5362316Abstract: 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: GrantFiled: February 5, 1993Date of Patent: November 8, 1994Assignee: Imperbel America CorporationInventor: Richard W. Paradise
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Patent number: 5340391Abstract: 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: GrantFiled: March 11, 1993Date of Patent: August 23, 1994Assignee: ReClaim, Inc.Inventor: Ken F. Grzybowski
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Patent number: 5328505Abstract: 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: GrantFiled: September 14, 1993Date of Patent: July 12, 1994Assignee: Westvaco CorporationInventor: Peter Schilling
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Patent number: 5322556Abstract: 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: GrantFiled: March 8, 1993Date of Patent: June 21, 1994Assignees: Eniricerche S.p.A., Snamprogetti S.p.A.Inventors: Aldo Prevedello, Edoardo Platone, Elio Donati
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Patent number: 5296264Abstract: 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: GrantFiled: September 30, 1991Date of Patent: March 22, 1994Assignee: Blacklidge Emulsions, Inc.Inventors: Ronald W. Blacklidge, Timothy D. Rayburn
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Patent number: 5268029Abstract: 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: GrantFiled: September 17, 1991Date of Patent: December 7, 1993Assignee: ELF FranceInventors: Francis Demangeon, Emile Lopez
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Patent number: 5223032Abstract: 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: GrantFiled: July 17, 1991Date of Patent: June 29, 1993Inventors: Michael M. Gaudio, Christopher C. Guzaldo
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Patent number: 5221338Abstract: 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: GrantFiled: September 30, 1991Date of Patent: June 22, 1993Inventors: Michael M. Gaudio, Christopher C. Guzaldo
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Patent number: 5196058Abstract: 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: GrantFiled: December 7, 1990Date of Patent: March 23, 1993Assignee: Uintah Resources, Inc.Inventor: Byron Merrell
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Patent number: 5180428Abstract: 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: GrantFiled: December 24, 1991Date of Patent: January 19, 1993Inventor: Richard D. Koleas
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Patent number: 5116413Abstract: 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: GrantFiled: June 11, 1991Date of Patent: May 26, 1992Assignee: Waterproof Coatings S.A.Inventor: Franciscus P. M. Nooren
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Patent number: 5064472Abstract: 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: GrantFiled: August 14, 1989Date of Patent: November 12, 1991Assignee: Foster Wheeler USA CorporationInventors: John A. G. Drake, Ian L. Jamieson
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Patent number: 5053080Abstract: 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: GrantFiled: November 20, 1990Date of Patent: October 1, 1991Assignee: W. R. Grace & Co.-Conn.Inventor: James M. Gaidis
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Patent number: 4975176Abstract: 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: GrantFiled: July 1, 1987Date of Patent: December 4, 1990Inventors: Fernando Begliardi, Alessandro Cori
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Patent number: 4948431Abstract: 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: GrantFiled: March 29, 1989Date of Patent: August 14, 1990Inventors: Paul D. Strickland, Paul C. Doran
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Patent number: 4904305Abstract: 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: GrantFiled: December 9, 1988Date of Patent: February 27, 1990Assignee: Nova Husky Research CorporationInventors: Ludo Zanzotto, Albert J. Faber, Dennis P. Foley, Royston B. Jeffries, R. David Watson
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Patent number: 4902349Abstract: 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: GrantFiled: September 21, 1987Date of Patent: February 20, 1990Assignee: Toa Dora Kogyo Co., Ltd.Inventors: Saburo Wakizaka, Hiraku Hayasaka, Kazuki Hashimoto, Kentaro Shiojiri, Toshiaki Suzuki
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Patent number: 4876130Abstract: 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: GrantFiled: August 25, 1986Date of Patent: October 24, 1989Assignee: Shell Oil CompanyInventors: Willem C. Vonk, Gerrit van Gooswilligen
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Patent number: 4759799Abstract: 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: GrantFiled: August 21, 1986Date of Patent: July 26, 1988Assignee: Exxon Chemical Patents Inc.Inventor: Stephen J. Vicenzi
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Patent number: 4755278Abstract: 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: GrantFiled: February 26, 1987Date of Patent: July 5, 1988Assignee: Institut Francais du PetroleInventor: Pierre Baumgartner
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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