EP2582760A1 - Compositions de bitume fluxé et produits comprenant un diluant dérivé du tallol, et leurs procédés de fabrication et d'utilisation - Google Patents

Compositions de bitume fluxé et produits comprenant un diluant dérivé du tallol, et leurs procédés de fabrication et d'utilisation

Info

Publication number
EP2582760A1
EP2582760A1 EP10853350.6A EP10853350A EP2582760A1 EP 2582760 A1 EP2582760 A1 EP 2582760A1 EP 10853350 A EP10853350 A EP 10853350A EP 2582760 A1 EP2582760 A1 EP 2582760A1
Authority
EP
European Patent Office
Prior art keywords
tall oil
wax
asphalt
range
agents
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10853350.6A
Other languages
German (de)
English (en)
Other versions
EP2582760A4 (fr
Inventor
Premnathan Naidoo
William E. Sonnier
Rick Billings
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PVS Meridian Chemicals Inc
Original Assignee
PVS Meridian Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PVS Meridian Chemicals Inc filed Critical PVS Meridian Chemicals Inc
Publication of EP2582760A1 publication Critical patent/EP2582760A1/fr
Publication of EP2582760A4 publication Critical patent/EP2582760A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
    • C08L93/04—Rosin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
    • C08L2555/22—Asphalt produced above 140°C, e.g. hot melt asphalt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/30—Environmental or health characteristics, e.g. energy consumption, recycling or safety issues
    • C08L2555/34—Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/50—Inorganic non-macromolecular ingredients
    • C08L2555/52—Aggregate, e.g. crushed stone, sand, gravel or cement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/60—Organic non-macromolecular ingredients, e.g. oil, fat, wax or natural dye
    • C08L2555/62—Organic non-macromolecular ingredients, e.g. oil, fat, wax or natural dye from natural renewable resources
    • C08L2555/64—Oils, fats or waxes based upon fatty acid esters, e.g. fish oil, olive oil, lard, cocoa butter, bees wax or carnauba wax
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/80—Macromolecular constituents

Definitions

  • the present invention relates to asphalt compositions and products, and to methods of making and using such compositions and products.
  • the present invention relates to asphalt compositions and products comprising renewable materials, and to methods of making and using such compositions and products.
  • the present invention relates to asphalt compositions and products comprising tall oil based materials, and to methods of making and using such compositions and products.
  • the present invention relates to asphalt compositions and products comprising modified tall oil based materials, and to methods of making and using such compositions and products.
  • the present invention relates to asphalt compositions and products comprising oxidized or distilled tall oil based materials, and to methods of making and using such compositions and products.
  • the present invention relates to asphalt compositions and products comprising tall oil based materials and polymers, and to methods of making and using such compositions and products as a partial or whole substitute for asphalt/bitumen with or without polymer modification.
  • Asphalt is a sticky, black and highly viscous liquid or semi-solid that is present in most crude petroleum and in some natural deposits.
  • asphalt or asphalt cement
  • bitumen is the carefully refined residue from the distillation process of selected crude oils. Outside North America, the product is called bitumen.
  • Asphalt binder is a key ingredient in pavements, roofing and waterproofing applications. The primary use of asphalt is in road construction, where it is used as the glue or binder for the aggregate particles, and accounts for approximately 80% of the asphalt consumed in the United States.
  • the most common type of flexible pavement surfacing in the United States is hot mix asphalt (HMA) that may also be known by many different names such as hot mix, asphalt concrete (AC or ACP), asphalt, blacktop or bitumen.
  • HMA hot mix asphalt
  • roofing applications mainly in the form of roofing shingles account for most of the remaining asphalt consumption.
  • Other uses include waterproofing applications.
  • asphalt prices are escalating sharply due to supply/demand of crude oil and also because more refineries are installing cokers to convert asphalt and asphalt like residues into transportation fuels to meet growing demand. This means that asphalt binder will continue to become limited in supply and will become progressively more expensive.
  • emissions from asphalt binders derived from petroleum sources are of concern due to their composition of sulfur compounds, poly-nuclear aromatics and Nitrogen compounds. This poses a health hazard for employees in the aggregate mixing and paving operations as well as to the motoring public during paving operations.
  • Bioasphalt is an asphalt alternative made from non-petroleum based renewable sources.
  • bitsumen can also be made from waste vacuum tower bottoms produced in the process of cleaning used motor oils, which are normally burned or dumped into land fills.
  • Non-petroleum based bitumen binders can be colored, which can reduce the temperatures of road surfaces and reduce the urban heat islands.
  • the base emulsions useful in this invention are comprised of (1) bitumen, (2) a cationic emulsifier, (3) acid, and (4) water. To this base emulsion is added (1) an adhesion promoter such as tall oil, and (2) a hydrocarbon solvent to form the finished modified emulsions.
  • the asphalt binder composition comprises: (1) a medium curing liquid asphalt, (2) from about 0.1 to 13.5% by weight tall oil based on the weight of the medium curing liquid asphalt, and (3) 0.0001% to 0.05% by volume of
  • a patching composition is also provided which comprises from about 3 to 8% of asphalt binder composition, defined above, and from about 97 to 92% by weight of a mineral aggregate, based on the weight of asphalt binder composition plus mineral aggregate.
  • a coating or sealing composition comprises: (1) a rapid curing liquid asphalt and (2) from about 0.1 to 13.5% by weight tall oil, preferably 1% by weight tall oil, based on the weight of rapid curing liquid asphalt. Methods are provided for preparing the compositions and for repairing roadways.
  • the asphalt binding composition comprises: (1) a medium curing liquid asphalt, and (2) from about 0.1 to 13.5% by weight tall oil based on the weight of the medium curing liquid asphalt.
  • An aggregate containing asphalt composition is also provided which comprises the asphalt binder composition, defined above, and aggregate.
  • U. S. Patent No. 5,221,703 to Ostermeyer discloses modified asphalt cements that comprise asphalt cement, reacted tall oil, tall oil pitch, tall oil derivatives or mixtures of these, and polymers selected from block copolymers and latexes, both synthetic and natural.
  • Methods of manufacturing include: blending a reacted tall oil- modified asphalt cement with a polymer-modified asphalt cement to obtain the desired properties; modifying an asphalt cement with a reacted tall oil, tall oil pitch, tall oil derivatives or mixture thereof, and then adding the selected polymer(s) to this tall oil- modified asphalt cement; modifying the asphalt cement with the selected polymer(s) and then adding the tall oil, tall oil pitch, tall oil derivatives and mixtures thereof and reacting with a strong base; and, adding the polymer(s), tall oil, tall oil pitch, tall oil derivatives and mixture thereof and the strong base all to the asphalt cement at or nearly at the same time.
  • U.S. Patent No. 6,149,351 to Doyle, issued November 21, 2000 discloses methods 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.
  • U. S. Patent No. 6,346,561 to Osborn, issued February 12, 2002, discloses a recipe and method for combining Gilsonite and other asphaltites with curative elastomers that are powder granular form and which are added to asphalt.
  • Second recipe and method is disclosed to create a dry liquid concentrate comprised of cured elastomers in combination with tall oil or other fatty acids and may also include Gilsonite to be added to asphalt.
  • U. S Patent No. 6,774,165 to Clark , et al., issued August 10, 2004, discloses a method of preparing an amine-free emulsion of alkaline earth metal sulfonates is disclosed.
  • a solution of water and a nonionic, associative thickener of the type normally used for viscosity and thixotropy modification of latex compounds is combined with an overbased or neutral earth metal sulfonate or sulfonate complex to produce the emulsion.
  • Mixtures of these emulsified products with other ingredients such as neutral diluent oils, linear alcohol/hydrocarbon mixtures, tall oil fatty acids, non-ionic surfactants, oxidized
  • polyethylene waxes small levels of microcrystalline wax, petrolatums, and/or calcium salts of oxidized petrolatums is also disclosed.
  • the resulting emulsions find application in the modification of asphalt emulsions, the formulation of temporary coatings for the protection of painted automotive surfaces (transit coatings for automobiles) and in the prevention of corrosion of metal surfaces.
  • compositions and products compositions and products.
  • compositions and products comprising modified tall oil based materials, and to methods of making and using such compositions and products.
  • compositions and products comprising oxidized or distilled tall oil based materials, and to methods of making and using such compositions and products.
  • an asphalt product includes a a tall oil material having a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent.
  • the product also includes a petroleum based asphalt, wherein the weight ratio of asphalt to tall oil material is in the range of about 1:99 to about 99:1.
  • a product comprising aggregate and a binder.
  • the binder may include a tall oil material having a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent.
  • the binder may also include a petroleum based asphalt. When both are present, the weight ratio of asphalt to tall oil material is in the range of about 1:99 to about 99:1.
  • the aggregate is dispersed throughout the binder.
  • a method of modifying a petroleum based asphalt may include contacting the petroleum based asphalt with at least one modifier comprising a tall oil material to form a modified asphalt, wherein the tall oil component has a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a
  • Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent, and wherein the weight ratio of petroleum based asphalt and tall oil material is in the range of about 1:99 to about 99:1.
  • a method of making an asphalt product may include forming a mixture comprising aggregate, a petroleum based asphalt and a tall oil material, to form an asphalt product, wherein the tall oil material has a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent, and wherein the weight ratio of petroleum based asphalt and tall oil material is in the range of about 1:99 to about 99:1.
  • a tall oil asphalt product may include a tall oil material and at least one polymer.
  • the polymer may include at least one selected from the group consisting of Latex Emulsion, Styrene Butadiene Styrene, natural or synthetic Styrene Butadiene Rubber, Styrene Ethylene Butadiene Styrene, Polypropylene (polymer or wax), Polyethylene (polymer or wax), Atactic-Polypropylene, Fischer- Tropsch Wax, Microcrystalline Wax, Crumbed Tire Rubber, Ethylene Vinyl Acetate, Terpolymers, Montan, Epoxy Resins, Petroleum Wax, PTFE.
  • the weight ratio of tall oil material to polymer may be in the range of about 1:99 to about 99:1.
  • the product may be free of petroleum based asphalt.
  • the product has a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent.
  • a product may include aggregate and a binder.
  • the binder may include a tall oil material having a softening point in the range of 75F to 400F, a Needle Penetration value (0.1mm) at 25C of at least 1, a Rotational Viscosity at 275F in the range of 650cps to 8,000 cps, and a water solubility of less than 10 percent.
  • the aggregate may be dispersed throughout the binder, and the product may be free of petroleum based asphalt.
  • the present invention utilizes tall oil materials in asphalt compositions and products. Some embodiments of the present invention utilize tall oil materials having an increased softening point. In some embodiments, part or all of the tall oil materials are oxidized to increase the softening point, while keeping viscosity as low as possible. In other embodiments, part or all of the tall oil materials are distilled to increase the softening point, generally by removing the lighter fractions. In even other embodiments, part or all of the tall oil materials may be both oxidized and distilled, in either order. In still other embodiments, various parts of the tall oil materials may be oxidized and/or distilled.
  • the tall oil materials are combined with a polymer to increase the softening point.
  • tall oil materials especially oxidized tall oil, may be used as an additive to partially or fully replace petroleum based asphalt binders.
  • any known asphalt composition or product may be made using the tall oil materials of the present invention to replace part or all of the petroleum based asphalt binder therein.
  • the known equipment and methods of making the known asphalt compositions and products are believed to be sufficient for making the asphalt compositions and products of the present invention in which part or all of the petroleum based asphalt has been partially or wholly replaced by the tall oil materials of the present invention.
  • tall oil materials includes man made and naturally occurring tall oil, tall oil pitch, tall oil blends, and similar tall oil products.
  • Tall oil is a liquid resinous material that may be obtained in the digestion of wood pulp from paper manufacture.
  • Commercial tall oils comprise a complex of fatty acids, resin acids, sterols, higher alcohols, waxes and hydrocarbons. The acid components also may be present as the esters thereof.
  • a common source of tall oil that may be used in the practice of the present invention is from pine trees.
  • tall oil contains fatty acids, esters, rosin acids, sterols, terpenes, carbohydrates and lignin. These may be separated when wood is converted to paper pulp by the sulfide or Kraft process. The acids may then be neutralized in an alkaline digestion liquor. The mixture of rosin and fatty acid soap may be recovered by subsequent acidification which releases free rosin and fatty acids, the major constituents of tall oil.
  • tall oil material in which part, parts or all of the tall oil material has been subject to oxidation and/or distillation, which tall oil material may be utilized either on a neat basis or in combination with various polymers.
  • the purpose of the oxidation and/or distillation of the tall oil material and the combination with a polymer is to increase the softening point, while keeping viscosity as low as possible.
  • the tall oil materials suitable for use in the present invention product can be produced using various tall oil streams - crude tall oil (CTO) or tall oil pitch (TOP). These two tall oil sources may first be modified, either by distillation and/or oxidation, and used either on a neat basis or in combination with various polymers.
  • One purpose of the modification of the tall oil material and the optional combination with a polymer is to increase softening point, while keeping viscosity as low as possible, for use in asphalt applications.
  • the tall oil In the case of tall oil that is used on a neat basis i.e., no polymer added, the tall oil is oxidized to a high level in order to achieve a softening point in the range of about 75°F to about 400°F.
  • the upper limit of the softening point is generally determined by viscosity issues, in that the tall oil must have suitable workability/flowability.
  • the lower limit of the softening point is generally determined by flash point issues.
  • viscosity modifying agents may be utilized, but there is also a limit to how much these agents can help the workability/flowability.
  • the lower end on the range of softening points may be selected from 75°F, 85°F, 95°F, 100°F, 110°F, 125°F, 150°F, 175°F, 200°F, 225°F, 250°F and 300°F, with a corresponding higher upper end for the range of softening points selected from 85°F, 95°F, 100°F, 110°F, 125°F, 150°F, 175°F, 200°F, 225°F, 250°F, 275°F, 300°F, 350°F, 375°F and 400°F.
  • suitable ranges include in the range of about 100°F to about 275°F, and even in the range of about 125°F to about 250°F.
  • the extent of oxidation may be determined through acid value determination (as measured in mg/g), that is, when the tall oil materials are oxidized, the acid value will decrease.
  • the ending acid number will depend on the starting acid number, as not all crude tall oils or tall oil pitches will have the same starting acid number, so it will be necessary to observe the decrease in acid number.
  • the acid number reduction will be in the range of about 5 to 20 titration units.
  • the acid number reduction is in the range of about 5 to about 25 units.
  • the end softening point and the end viscosity being the determining factors for the extent of oxidation.
  • the upper limit may be influenced by one or more of the end viscosity, end softening point, end needle penetration, and/or the end water solubility, depending upon which of those properties are desirable. Specifically, with increasing oxidation the viscosity increases, the softening point increases, the water solubility decreases, and the needle penetration decreases. In many embodiments, it is the viscosity that will be the more important factor in the end application, as with too much oxidation, the tall oil material will become too viscous for pumping or use in asphalt.
  • the softening point or water solubility controls the amount of oxidation.
  • the present invention anticipates the use of oxidized and/or distilled (in any order) crude tall oil, oxidized and/or distilled (in any order) pitch, and/or highly oxidized and/or distilled (in any order) crude tall oil, preferably, oxidized and/or distilled (in any order) pitch, and/or highly oxidized and/or distilled (in any order) crude tall oil.
  • the tall oil used can be crude tall oil, distilled crude tall oil (with 1% to 30% of light ends removed via distillation) or tall oil pitch.
  • this distillation process can be carried out in a wide range of equipment - a conventional rectification column, a thin film or wiped film evaporator, a falling film evaporator or even done as a batch flash.
  • a single stage wiped film evaporator may be utilized with run conditions in the evaporator at 165°C at a vacuum of 200 microns. Certainly numerous other process conditions may be selected, for example, less vacuum could be used if higher run temperatures are used. The exact equipment used and feed stock will determine the actual run conditions.
  • light ends distilled from tall oil materials via distillation are used as an asphalt diluent.
  • the tall oil material is charged to a batch reactor and is oxidized by blowing air into the reactor mass under controlled conditions of temperature and pressure.
  • One non-limiting way to control the degree of oxidation, and thus the softening point and viscosity, is by oxidation time. The longer the oxidation time, the higher the softening point and the greater the viscosity.
  • the rate of oxidation is increased through higher pressure, higher temperature, higher air rates and improved air dispersion through agitation, pressure and sparging.
  • run conditions used on a pilot plant scale to produce highly oxidized tall oil were 240°C, atmospheric pressure and an air rate of approximately 16 to 25 standard cubic feet per hour of air per kilogram of reactor charge. Oxidation time was approximately four (4) hours.
  • the air rate used on a pilot scale was perhaps a bit high to be achieved commercially. Certainly lower air rates and lower temperatures can be used, and will result in increased reaction time, however. It is also important to note that the oxidation process is an exothermic reaction, so cooling must be provided to control reaction temperature once the process is begun. Additionally, some embodiments include a reactor equipped with a vent condenser in order to capture any tall oil that is vaporized from the reactor or entrained with the exhausting air.
  • Non-limiting examples of operating ranges to produce highly oxidized tall oil materials are as follows: temperature in the range of about 200°C to about 260°C, and operating pressure on the order of about 40 psig.
  • the operating pressure may be in the range of about 0 psig (atmospheric conditions) to about 150 psig psig, but oxidation at higher pressures reduces the loss of lighter end material through the reactor vent.
  • a non-limiting air rate will be on the order of about 1 to 30 scfh/kg (standard cubic feet per hour per kilogram of material).
  • the tall oil materials can be combined with various polymers to elevate the softening point.
  • the polymers may be blended with the various tall oils at a suitable temperature, so that all components are in a dispersed in order to facilitate blending (non- limiting examples in the range of about 175°C to 250°C - preferably 165°C to 200°C).
  • Non- limiting examples of polymers suitable for use in the present invention include Latex
  • the range of polymer used in combination with the tall oil is 0.5% to 25%, preferably 5% to 10% weight percent, based on the weight of the tall oil.
  • the level of polymer used sets the softening point of the blend. It is important that a homogeneous, stable blend is produced and this may be achieved with or without cross-linking agents.
  • blending time is typically 10 minutes to 24 hours under good agitation at the temperature range described above.
  • a tall oil material that has a suitable water solubility for the end use application.
  • one method for obtaining suitable water solubility is by selecting the desired amount of oxidation.
  • additives may be utilized to achieve the desired property.
  • the water solubility is generally less than 10%.
  • a lower solubility may be desired, non-limiting examples of which include less than 7%, less than 5%, less than 3%, less than 2%, less than 1%, less than 0.5%, and perhaps even less than 0.25%.
  • the needle penetration may as a non-limiting example, range from about 1 to about 400 (as measured at 25°C), with the hard rigid asphalts on the lower side, and the soft pliable asphalts on the higher side of that range.
  • the needle penetration may be in the range of about 1-100, 1-50, and 1-25, and for soft pliable asphalt in the range of about 200-400, 250-375, and 250-350.
  • a tall oil material that has a rotational viscosity suitable for the end use application.
  • one method for obtaining suitable rotational viscosity is by selecting the desired amount of oxidation.
  • additives may be utilized to achieve the desired property, but there is also a limit to how much these agents can help the workability/flowability.
  • the suitable rotational viscosity is generally dependent upon the workability/flowability needed in the end use application.
  • the upper limit of the rotational viscosity may be determined by cold weather cracking and/or slow down in processing speed at the end use application.
  • the lower limit of the rotational viscosity may be determined by the flash point.
  • the lower end on the range of rotational viscosity at 275F may be selected from 650 cps, 700 cps, 800 cps, 900 cps, 1,000 cps and 1,100 cps, with a corresponding higher end for the range of rotational viscosity selected from 3,000 cps, 4,000 cps, 5,000 cps, 6,000 cps, 7,000 cps, 8,000 cps.
  • a suitable range includes in the range of about 650cps to 8,000 cps at
  • a non-limiting examples of a suitable oxidized tall oil asphalt binder may appear black in color, and may have a Softening Point as discussed about and optionally a Needle Penetration value (0.1mm) at 25C of 1 or higher and Rotational Viscosity at 150°F in the range of 2,000cps to 15,000 cps, or a Rotational Viscosity at 135C/275F with lower limit at 650cps and higher limit at 8,000 cps..
  • a specific non-limiting example of a suitable tall oil material asphalt of the present invention have a Needle Penetration at 25C of at least 1, a Softening Point of at least 125F, and water solubility at 60C of less than 1%.
  • the oxidized tall oil may be emulsified to form a cationic or anionic or non-ionic emulsion for use in road, roofing, waterproofing or other applications.
  • Various additives may be optionally utilized in the present invention.
  • Non- limiting examples of suitable additive include viscosity control agents, lubricity agents, flowability agents, colorants, reinforcing agents, waxes, fibers, matting, fabric, surfactants, wetability agents, anti-skid agents, reflective additives, cross-linking agents, anti-strip agents, emulsifier, mineral additives, fillers, polymers, aqueous solutions, anti-foaming agents, dispersing agents, mixing agents, compatibilizers, water repellents, reflective agents, UV light stabilizers, solvent resistant agents, herbicides, insecticides, anti-mold/fungal agents, and antibacterial agents.
  • Each of these various additives may be present in the range of about 0.1 to about 30 weight percent of the asphalt material.
  • Aggregate is a collective term for the mineral materials such as sand, gravel and crushed stone that are used with the asphalt binding medium to form compound materials. By volume, aggregate generally accounts for 92 to 96 percent of holt mix asphalts. Aggregate is also used for base and sub-base courses for both flexible and rigid pavements.
  • Aggregates can either be natural or manufactured. Natural aggregates are generally extracted from larger rock formations through an open excavation (quarry).
  • Extracted rock is typically reduced to usable sizes by mechanical crushing.
  • Manufactured aggregate is often the byproduct of other manufacturing industries.
  • the tall oil materials of the present invention may partially or wholly replace the petroleum asphalt binder in paving applications.
  • the tall oil materials may first be modified with any of the additives conventionally used to modify petroleum asphalts.
  • the tall oil materials may be used in petroleum asphalt compositions and products, comprising at least 1 weight percent based on the weight of the composition or product.
  • the tall oil materials of the present invention may be utilized in the following pavement applications: Warm Mix, Cold Mix; Tack Coat Emulsions; Hot Applied Tack Coat; Solvent Cut Back Cold Mix; Slurry Seals; Fog Seals; Joint Sealants; Patch Mixes; Crack Sealants; Airport Runways and Aprons;
  • the tall oil materials of the present invention may partially or wholly replace the petroleum asphalt binder in roofing applications, non-limiting examples of which include roofing shingles, roofing underlay, roofing mats and built-up-roofing (BUR and Mopping grades), mopping compound for coating onto roofing to form a waterproof protective layer, and flexible rolls of roofing material.
  • roofing applications non-limiting examples of which include roofing shingles, roofing underlay, roofing mats and built-up-roofing (BUR and Mopping grades), mopping compound for coating onto roofing to form a waterproof protective layer, and flexible rolls of roofing material.
  • the compositions and products of the present invention may be useful in warm mix, hot applied and emulsion versions of formulations for such roofing applications.
  • a lightly oxidized tall oil component is prepared by first charging
  • the heating mantle is turned to off as the oxidation reaction generates adequate heat to maintain the reaction temperature.
  • air addition is ceased and the material is allowed to cool to approximately 200°C.
  • 0.356 kilograms of a polyethylene wax (polymer) is added to the oxidized tall oil and allowed to mix for one hour.
  • the resulting oxidized tall oil/polymer blend has a softening point of approximately 60C and a rotational viscosity of approximately 4,000 cps at 135C/275F.
  • V67-22 is Valero Refinery Base Asphalt binder produced as such without any modification and graded PG 67-22.SBS RADIAL PLUS "Star” or Radial configuration of the SBS polmer., and was produced as follows:
  • E76-22 is standard Polymer Modified Asphalt (PMA) produced by Ergon Refineries in Mississippi, USA and the meets the Superpave PG Asphalt Binder Grade.
  • PMA Polymer Modified Asphalt
  • E76-22 is polymer modified (ie SBS) version of asphalt that meets PG 76-22 grade.
  • PMA is Polymer Modified Asphalt.
  • TOC is Tall Oil Component.
  • the Rutgers test is a severe test to assess the ability of a pavement mix to withstand repeated high stress levels of high traffic loads. Evaluations undertaken have demonstrated that the use of tall oil materials as an extender concept does not adversely impact on the binder stiffness modulus and affect the rutting resistance of the matrix of petroleum asphalt extended with oxidized asphalt, and in some embodiments may provide equivalent or superior performance to petroleum asphalt.
  • Control 1 is from Example 1
  • Control 2 is from Example 2.

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
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Abstract

Compositions de bitume et produits où le liant comprend des substances dérivées de tallol éventuellement soumises à distillation préalable, et/ou oxydation, et/ou combinées à un polymère, les substances dérivées de tallol présentant un point de ramollissement compris entre 75 °F et 400 °F, une valeur de pénétration d'aiguille (0,1 mm) à 25 °C d'au moins 1, une viscosité rotationnelle à 275 °F comprise entre 650 cps et 8000 cps, et une solubilité dans l'eau inférieure à 10 %.
EP10853350.6A 2010-06-15 2010-06-15 Compositions de bitume fluxé et produits comprenant un diluant dérivé du tallol, et leurs procédés de fabrication et d'utilisation Withdrawn EP2582760A4 (fr)

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PCT/US2010/038724 WO2011159287A1 (fr) 2010-06-15 2010-06-15 Compositions de bitume fluxé et produits comprenant un diluant dérivé du tallol, et leurs procédés de fabrication et d'utilisation

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MX344449B (es) 2008-09-24 2016-12-16 Wright Advanced Asphalt Systems Sistema y metodo para la preparacion en alto rendimiento de cementos asfalticos modificados con caucho.
CN102649877B (zh) * 2012-05-22 2013-12-04 武汉恩泰科技有限公司 一种用于道路沥青的热稳定剂
CN103571212B (zh) * 2012-07-26 2015-12-16 中国海洋石油总公司 一种沥青路面灌缝胶及其制备方法
WO2014026492A1 (fr) * 2012-08-13 2014-02-20 交通运输部公路科学研究所 Asphalte biologique, composite d'asphalte biologique et procédé de préparation de ces derniers
CN104884691B (zh) * 2013-01-08 2017-09-01 加拿大圣戈班爱德福思有限公司 用于屋面产品的玻璃垫、沥青屋面产品及增加其撕裂强度的方法
CN103306179B (zh) * 2013-06-19 2015-04-08 广东华盟路桥工程有限公司 抗滑防渗雾封层工艺
CN103709768B (zh) * 2013-12-16 2016-04-13 韩合轩 沥青路面改性剂
US10544243B2 (en) 2014-02-17 2020-01-28 Reliance Industries Limited Heterogeneous Ziegler-Natta catalyst composition, a process for its preparation and a process for polymerizing olefin using the same
CN104087242A (zh) * 2014-06-20 2014-10-08 蚌埠市光华金属制品有限公司 一种沥青废橡胶防水油膏的制备方法
CN108129073B (zh) * 2017-12-26 2020-04-24 华南理工大学 一种冷拌冷铺沥青混合料及冷拌冷铺沥青混合料磨耗层
CN108342093B (zh) * 2018-02-11 2021-04-06 山东星火科学技术研究院 一种抗裂改性沥青及其制备方法
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CN111892336B (zh) * 2020-07-29 2022-07-22 西安华泽道路材料有限公司 一种自热温拌沥青修补料及其施工方法
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EP2582760A4 (fr) 2013-07-17
MX2012014633A (es) 2013-05-01
BR112012031942A2 (pt) 2016-11-08
WO2011159287A1 (fr) 2011-12-22
CA2801866A1 (fr) 2011-12-22

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