CA2749024C - Method for rejuvenating a bitumen containing composition - Google Patents
Method for rejuvenating a bitumen containing composition Download PDFInfo
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- CA2749024C CA2749024C CA2749024A CA2749024A CA2749024C CA 2749024 C CA2749024 C CA 2749024C CA 2749024 A CA2749024 A CA 2749024A CA 2749024 A CA2749024 A CA 2749024A CA 2749024 C CA2749024 C CA 2749024C
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- bitumen
- distillation residue
- asphalt
- bitumen containing
- viscosity
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- 239000010426 asphalt Substances 0.000 title claims abstract description 128
- 239000000203 mixture Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000003716 rejuvenation Effects 0.000 title claims abstract description 27
- 238000004821 distillation Methods 0.000 claims abstract description 30
- 244000226021 Anacardium occidentale Species 0.000 claims abstract description 15
- 235000020226 cashew nut Nutrition 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- -1 roof covering Substances 0.000 claims abstract description 3
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 235000013311 vegetables Nutrition 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000008187 granular material Substances 0.000 description 10
- 238000003801 milling Methods 0.000 description 8
- 238000003483 aging Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000019482 Palm oil Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- KVVSCMOUFCNCGX-UHFFFAOYSA-N cardol Chemical compound CCCCCCCCCCCCCCCC1=CC(O)=CC(O)=C1 KVVSCMOUFCNCGX-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002540 palm oil Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 description 1
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 description 1
- XRFYZEHRLUNWIJ-UHFFFAOYSA-N 3-pentadec-1-enylphenol Chemical compound CCCCCCCCCCCCCC=CC1=CC=CC(O)=C1 XRFYZEHRLUNWIJ-UHFFFAOYSA-N 0.000 description 1
- PGELLTKIGASXMM-UHFFFAOYSA-N CCCCCCCCCCCC=CC=CC1(O)CC(O)=CC=C1 Chemical compound CCCCCCCCCCCC=CC=CC1(O)CC(O)=CC=C1 PGELLTKIGASXMM-UHFFFAOYSA-N 0.000 description 1
- JOLVYUIAMRUBRK-UTOQUPLUSA-N Cardanol Chemical compound OC1=CC=CC(CCCCCCC\C=C/C\C=C/CC=C)=C1 JOLVYUIAMRUBRK-UTOQUPLUSA-N 0.000 description 1
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 description 1
- UFMJCOLGRWKUKO-UHFFFAOYSA-N cardol diene Natural products CCCC=CCC=CCCCCCCCC1=CC(O)=CC(O)=C1 UFMJCOLGRWKUKO-UHFFFAOYSA-N 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000012321 sodium triacetoxyborohydride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
-
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
Method for rejuvenating a bitumen containing compositions, said method comprising adding to the bitumen containing compositions a distillation residue of cashew nut shell liquid (CNSL), said distillation residue being obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350 OC.
Advantageously said bitumen containing composition is selected from: bitumen, asphalt, roof covering, insulating material, shore covering material, and anti-drum plates.
Advantageously said bitumen containing composition is selected from: bitumen, asphalt, roof covering, insulating material, shore covering material, and anti-drum plates.
Description
Title: Method for rejuvenating a bitumen containing composition The present invention relates to a method for rejuvenating a bitumen containing composition.
In the prior art several methods are known for rejuvenating bitumen containing compositions. An example thereof is disclosed in R. Romera, Project 1992-1981, Transportation Research Board of the National Academies, Spain, "Rheological Aspects of the rejuvenation of aged bitumen", June 27, 2005. Herein the following rejuvenation additives have been tested: commercial aromatic oil, aromatic motor recycling oil, and Soft 150/200 Penetration Bitumen. Research showed that the best composition contained 80% aged bitumen in combination with 20% motor oil. No cashew nut shell oil is mentioned.
Also WO/2008/08401A, in the name of Shell Internationale Research Maatschappij BV at the Hague (NL), discloses a rejuvenating agent and a method for recycling asphalt. As a rejuvenating agent a composition is used comprising bitumen and palm oil.
Examples of other known rejuvenating agents from the prior art are paraffins and rape seed oil etc. However these agents have just like palm oil the important disadvantage that they render the bitumen too soft, whereby the viscosity of the bitumen containing composition, such as for example asphalt, becomes also too low. In the case of for example asphalt because of these agents the adherence to the aggregate is decreasing whereby the durability of the asphalt is being impaired. Also these agents are poorly mixable with the bitumen.
Further petrochemical resins exist which can be used as rejuvenating agents for bitumen containing compositions, although these are very expensive.
In the prior art it is known to recycle asphalt and other bitumen containing compositions. Hereto the compositions usually are milled and added to new compositions to be prepared or are recycled as such while adding suitable additives. In this case always also new fresh bitumen has to be added to the composition to guarantee the processability and quality (durability, life) of the composition. In other words, compositions being comprised of solely recycled bitumen containing material with good properties for use in practice showed to be impossible up till present. Although such compositions exist these are applied where the inferior properties thereof are not important. For example machined asphalt is reused without the addition of fresh bitumen for road side reinforcement edges. Such a material is however fully unsuitable for use as new road surface.
In the prior art several methods are known for rejuvenating bitumen containing compositions. An example thereof is disclosed in R. Romera, Project 1992-1981, Transportation Research Board of the National Academies, Spain, "Rheological Aspects of the rejuvenation of aged bitumen", June 27, 2005. Herein the following rejuvenation additives have been tested: commercial aromatic oil, aromatic motor recycling oil, and Soft 150/200 Penetration Bitumen. Research showed that the best composition contained 80% aged bitumen in combination with 20% motor oil. No cashew nut shell oil is mentioned.
Also WO/2008/08401A, in the name of Shell Internationale Research Maatschappij BV at the Hague (NL), discloses a rejuvenating agent and a method for recycling asphalt. As a rejuvenating agent a composition is used comprising bitumen and palm oil.
Examples of other known rejuvenating agents from the prior art are paraffins and rape seed oil etc. However these agents have just like palm oil the important disadvantage that they render the bitumen too soft, whereby the viscosity of the bitumen containing composition, such as for example asphalt, becomes also too low. In the case of for example asphalt because of these agents the adherence to the aggregate is decreasing whereby the durability of the asphalt is being impaired. Also these agents are poorly mixable with the bitumen.
Further petrochemical resins exist which can be used as rejuvenating agents for bitumen containing compositions, although these are very expensive.
In the prior art it is known to recycle asphalt and other bitumen containing compositions. Hereto the compositions usually are milled and added to new compositions to be prepared or are recycled as such while adding suitable additives. In this case always also new fresh bitumen has to be added to the composition to guarantee the processability and quality (durability, life) of the composition. In other words, compositions being comprised of solely recycled bitumen containing material with good properties for use in practice showed to be impossible up till present. Although such compositions exist these are applied where the inferior properties thereof are not important. For example machined asphalt is reused without the addition of fresh bitumen for road side reinforcement edges. Such a material is however fully unsuitable for use as new road surface.
2 The amount of available suitable bitumen is decreasing considerably in recent years.
This is a consequence of the fact that petroleum is distilled at increasing temperatures whereby less and less heavy fraction remains. Furthermore heavy fractions are upgraded to obtain more useful and therefore more valuable products. The amount of available bitumen thereby not only decreases but also the quality is getting worse. Nowadays because of that bitumen is even prepared new from other chemical substances.
Bitumen containing compositions are very sensitive to ageing and therefore have to be replaced in time as the properties in time degrade. Ageing of bitumen containing compositions can be caused by different mechanisms, comprising oxidation, evaporation of substances, UV-attack, exudation and orientation. In this process partly maltenes are converted into asphaltenes, whereby the material gets more brittle. By ageing the favorable properties for processing and application decrease in quality. The compositions frequently become harder, more brittle, less flexible and in time less and less recyclable.
Bitumen is for the majority used in asphalt for road construction. By erosion and weather influences asphalt ages relatively quick and usually asphalt has to be renewed within ten years. Hereto the asphalt is removed from the road surface and decreased in size by milling. This milling product is recycled with new asphalt preparation in a small amount. Real recycling of such milling asphalt while maintaining good asphalt properties is nowadays only possible with very high cost by for example the additional of special chemical substances or fresh bitumen.
In the prior art therefore a demand exists for a method for rejuvenating bitumen, such that old bitumen containing compositions can be recycled. Up till present this appeared not or only on a very costly manner to be possible.
The present invention intends to meet said need and thereto provides a method for rejuvenating a bitumen containing compositions, said method comprising adding a distillation residue of cashew nut shell liquid (CNSL) to the bitumen containing composition said distillation residue being obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350 C, preferably up to a temperature of between 300 and 340 C, and most preferably up to a temperature of between 310 and 320 C.
Surprisingly it appeared that by the addition of a relatively small amount of this specific distillation residue of CNSL the bitumen in the composition is rejuvenated such that the properties thereof are improved and the bitumen is again made suitable for the usual applications thereof. In some cases the rejuvenated bitumen is even superior to freshly prepared bitumen with regard to certain properties.
The distillation residue of CNSL which has to be added is not irritating such that this can be suitably processed without disadvantageous consequences for the user.
This is of
This is a consequence of the fact that petroleum is distilled at increasing temperatures whereby less and less heavy fraction remains. Furthermore heavy fractions are upgraded to obtain more useful and therefore more valuable products. The amount of available bitumen thereby not only decreases but also the quality is getting worse. Nowadays because of that bitumen is even prepared new from other chemical substances.
Bitumen containing compositions are very sensitive to ageing and therefore have to be replaced in time as the properties in time degrade. Ageing of bitumen containing compositions can be caused by different mechanisms, comprising oxidation, evaporation of substances, UV-attack, exudation and orientation. In this process partly maltenes are converted into asphaltenes, whereby the material gets more brittle. By ageing the favorable properties for processing and application decrease in quality. The compositions frequently become harder, more brittle, less flexible and in time less and less recyclable.
Bitumen is for the majority used in asphalt for road construction. By erosion and weather influences asphalt ages relatively quick and usually asphalt has to be renewed within ten years. Hereto the asphalt is removed from the road surface and decreased in size by milling. This milling product is recycled with new asphalt preparation in a small amount. Real recycling of such milling asphalt while maintaining good asphalt properties is nowadays only possible with very high cost by for example the additional of special chemical substances or fresh bitumen.
In the prior art therefore a demand exists for a method for rejuvenating bitumen, such that old bitumen containing compositions can be recycled. Up till present this appeared not or only on a very costly manner to be possible.
The present invention intends to meet said need and thereto provides a method for rejuvenating a bitumen containing compositions, said method comprising adding a distillation residue of cashew nut shell liquid (CNSL) to the bitumen containing composition said distillation residue being obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350 C, preferably up to a temperature of between 300 and 340 C, and most preferably up to a temperature of between 310 and 320 C.
Surprisingly it appeared that by the addition of a relatively small amount of this specific distillation residue of CNSL the bitumen in the composition is rejuvenated such that the properties thereof are improved and the bitumen is again made suitable for the usual applications thereof. In some cases the rejuvenated bitumen is even superior to freshly prepared bitumen with regard to certain properties.
The distillation residue of CNSL which has to be added is not irritating such that this can be suitably processed without disadvantageous consequences for the user.
This is of
3 particular advantage in for example road construction whereby asphalt is laid at elevated temperatures. Further CNSL is a natural product, which has huge technical advantages.
CNSL is a resin which is extracted from the shells of cashew nuts and is available in large quantities. This resin virtually completely consists of phenolic compounds with a chain length of substantially 15 C-atoms with varying unsaturation degrees, meta-substituted in the phenol ring.
Per se EP-A-1 642 935 discloses a bitumen containing binding agent used in for example road construction, for surface treatments an asphalt mixing system method. Said agent comprises a bitumen basis and a flux agent for example a reactive flux agent such as cashew nut shell liquid (CNSL), cardol or cardanol. CNSL in this respect relates to the distillation product and not to the distillation residue of cashew nut shell liquid. The distillation product is a reactive product intended to alter properties in a reactive manner. The distillation residue according to the invention is not reactive and adjusts the properties of the bitumen containing composition in a physical manner.
In the prior art CNSL substantially refers to the 'reactive' distillation product thereof and not to the 'non-reactive' green cashew nut shell liquid obtained by extracting cashew nut shells, nor the 'non-reactive' distillation residue according to the invention.
The distillation residue of CNSL used according to the invention consist mainly of a mixture of polymerization products of 3-pentadecenylphenol and 3-pentadecadienylresorcinol in the form of an alkylphenol resin which is liquid at room temperature. The chain length is approximately 13-16 carbon atoms.
The rejuvenation of bitumen is intended to mean that the properties of used bitumen are improved such that the bitumen regains properties which are better than these of the used bitumen, advantageously comparable with those of fresh bitumen, and in particular better than those of fresh bitumen.
The distillation residue advantageously has a viscosity which is comprised between 1,000 and 30,000 mPa.s 1, preferably between 1,000 and 10,000 mPa.s_i, more preference between 1,000 and 2,500 mPa.s-1, and the most preferred viscosity is substantially 1,500 mPa.s-1. A distillation residue with such a viscosity is particularly suitable for rejuvenating bitumen.
In a special embodiment of the invention the distillation residue has an average saturation factor of 1 to 5, and preferably 1.2 to 1.3.
Advantageously the bitumen containing compositions is selected from: bitumen, asphalt, insulating material, shore covering material and anti-drum plates.
All these bitumen containing compositions can be rejuvenated such by the addition of the specific distillation residue of CNSL according to the invention that these become suitable
CNSL is a resin which is extracted from the shells of cashew nuts and is available in large quantities. This resin virtually completely consists of phenolic compounds with a chain length of substantially 15 C-atoms with varying unsaturation degrees, meta-substituted in the phenol ring.
Per se EP-A-1 642 935 discloses a bitumen containing binding agent used in for example road construction, for surface treatments an asphalt mixing system method. Said agent comprises a bitumen basis and a flux agent for example a reactive flux agent such as cashew nut shell liquid (CNSL), cardol or cardanol. CNSL in this respect relates to the distillation product and not to the distillation residue of cashew nut shell liquid. The distillation product is a reactive product intended to alter properties in a reactive manner. The distillation residue according to the invention is not reactive and adjusts the properties of the bitumen containing composition in a physical manner.
In the prior art CNSL substantially refers to the 'reactive' distillation product thereof and not to the 'non-reactive' green cashew nut shell liquid obtained by extracting cashew nut shells, nor the 'non-reactive' distillation residue according to the invention.
The distillation residue of CNSL used according to the invention consist mainly of a mixture of polymerization products of 3-pentadecenylphenol and 3-pentadecadienylresorcinol in the form of an alkylphenol resin which is liquid at room temperature. The chain length is approximately 13-16 carbon atoms.
The rejuvenation of bitumen is intended to mean that the properties of used bitumen are improved such that the bitumen regains properties which are better than these of the used bitumen, advantageously comparable with those of fresh bitumen, and in particular better than those of fresh bitumen.
The distillation residue advantageously has a viscosity which is comprised between 1,000 and 30,000 mPa.s 1, preferably between 1,000 and 10,000 mPa.s_i, more preference between 1,000 and 2,500 mPa.s-1, and the most preferred viscosity is substantially 1,500 mPa.s-1. A distillation residue with such a viscosity is particularly suitable for rejuvenating bitumen.
In a special embodiment of the invention the distillation residue has an average saturation factor of 1 to 5, and preferably 1.2 to 1.3.
Advantageously the bitumen containing compositions is selected from: bitumen, asphalt, insulating material, shore covering material and anti-drum plates.
All these bitumen containing compositions can be rejuvenated such by the addition of the specific distillation residue of CNSL according to the invention that these become suitable
4 for recycling without the addition of fresh bitumen, although this addition of course is not excluded.
To further improve the properties of the rejuvenated bitumen containing composition even further the bitumen containing composition can additionally be made up with one of more the following substances: resin whether or not vegetable, oil whether or not vegetable, paraffins, polymers such as EVA, SBS, APP, PE metallocenes and synthetic waxes.
The invention further provides a bitumen containing composition which has been rejuvenated by application of the method according to the invention.
Preferably the rejuvenated bitumen containing composition is selected from:
asphalt, insulating material, roofing, shore covering material, anti-drum plates.
In the following the invention will be explained further with the aid of a number of example methods for rejuvenating bitumen containing compositions.
Example 1:
Method for rejuvenating bitumen containing recycled roof shingles.
The roof shingles used were roof webs which for about 20 years had laid on roofs on different locations in The Netherlands. The origin of the roof bitumen was varying as apart from renovation debris it also concerned demolition debris. This aged bitumen roofing consisted of 50% by weight of bitumen with atactic polypropylene (App) (polymer modified bitumen) and for the remainder of fillers and split material. This shingles were reduces in size mechanically.
Further a mixture range was made of the shingles with the addition of different amounts of CNSL distillation residue obtained by distilling cashew nut shell liquid up to a temperature of 315 C, (viz Table 1). Of this range samples were subjected to accelerated ageing at 80 C during one week and at 70 C during 12 weeks. Both ageings were executed according to the standard artificial ageing method as described in NEN-EN 495-
To further improve the properties of the rejuvenated bitumen containing composition even further the bitumen containing composition can additionally be made up with one of more the following substances: resin whether or not vegetable, oil whether or not vegetable, paraffins, polymers such as EVA, SBS, APP, PE metallocenes and synthetic waxes.
The invention further provides a bitumen containing composition which has been rejuvenated by application of the method according to the invention.
Preferably the rejuvenated bitumen containing composition is selected from:
asphalt, insulating material, roofing, shore covering material, anti-drum plates.
In the following the invention will be explained further with the aid of a number of example methods for rejuvenating bitumen containing compositions.
Example 1:
Method for rejuvenating bitumen containing recycled roof shingles.
The roof shingles used were roof webs which for about 20 years had laid on roofs on different locations in The Netherlands. The origin of the roof bitumen was varying as apart from renovation debris it also concerned demolition debris. This aged bitumen roofing consisted of 50% by weight of bitumen with atactic polypropylene (App) (polymer modified bitumen) and for the remainder of fillers and split material. This shingles were reduces in size mechanically.
Further a mixture range was made of the shingles with the addition of different amounts of CNSL distillation residue obtained by distilling cashew nut shell liquid up to a temperature of 315 C, (viz Table 1). Of this range samples were subjected to accelerated ageing at 80 C during one week and at 70 C during 12 weeks. Both ageings were executed according to the standard artificial ageing method as described in NEN-EN 495-
5 and also in NEN-EN 129.
Table 1 Value Value Value Value Value Value Value Subject (unity) APP Virgin aged aged aged aged aged aged roof bitumen APP roof roof roof roof roof roof roof Bitumen Bitumen Bitumen Bitumen Bitumen Bitumen Bitumen Addition CNSL
o o 5 10 15 20 25 Residue (EMC) Low temperature flexibility ( C) initially -15 5 3 -4 -10 -15 19 After 1 week 80 After 12 weeks 7o C -5 12 4 -3 -8 -13 -17 Tensile strength (Ni5omm):
longitudinal 850 600 620 750 800 820 770 transverse 700 450 500 630 700 690 620 Flow resistance (*c) initially 140 200 195 160 145 135 120 After 12 weeks 7o C 140 200 200 170 150 140 130 Nail tear strength (N) 150 80 80 100 120 100 90 CA 02749024 20 12 ¨06-14
Table 1 Value Value Value Value Value Value Value Subject (unity) APP Virgin aged aged aged aged aged aged roof bitumen APP roof roof roof roof roof roof roof Bitumen Bitumen Bitumen Bitumen Bitumen Bitumen Bitumen Addition CNSL
o o 5 10 15 20 25 Residue (EMC) Low temperature flexibility ( C) initially -15 5 3 -4 -10 -15 19 After 1 week 80 After 12 weeks 7o C -5 12 4 -3 -8 -13 -17 Tensile strength (Ni5omm):
longitudinal 850 600 620 750 800 820 770 transverse 700 450 500 630 700 690 620 Flow resistance (*c) initially 140 200 195 160 145 135 120 After 12 weeks 7o C 140 200 200 170 150 140 130 Nail tear strength (N) 150 80 80 100 120 100 90 CA 02749024 20 12 ¨06-14
6 These tests showed that the ageing process with the CNSL went slower relative to the shingle based on new bitumen (production 2008).
After this test range test pieces of the samples with 10% up to and including 25%
CNSL addition were applied on a roof in Heerhugowaard (NL). During processing the shingles with 10% and 15% CNSL addition to the recycled aged roof bitumen showed less good processing properties. The shingles were at an outside temperature of 12 C too rigid during processing. The shingles with an addition of 20% showed the best processing properties. This composition resembles most that of a shingle based on new bitumen (production 2008).
Example 2:
Method for rejuvenating a bitumen containing recycled milled asphalt composition.
For the asphalt tests rheologic tests were performed by measuring the viscosity of mixtures of aged road construction bitumen and aged roof bitumen at different temperatures while mixing in different percentages of CNSL residue, obtained by distilling cashew nut shell liquid to up to a temperature of 315 C. Viz Table 2 for the results.
Table 2 Aged Aged CNSL
road Viscosity at Viscosity at Viscosity at Viscosity at Viscosity at Viscosity at Number roof residue construction loo *c 120 C 140 C 160 C 180 C
Bitumen EMC
Bitumen 1 20 75 5 40,000 7,000 1,450 650 250 100 2 40 50 10 49,000 7,800 1,850 750 350 105 3 60 25 15 57,000 8,700 2,900 850 450 110 4 80 0 20 74,000 11,000 5,300 11,00 675 5 loo 0 o solid solid solid 8,000 6,300 4,850 70h00 4800 1,000 600 300 loo 80 In the rheology tests the roof bitumen and the CNSL were used in a fixed proportion.
The proportion was 4 parts of roof bitumen: 1 part CNSL residue (on a weight basis). The origin of the roof bitumen was the same as the tests described earlier. The aged road construction bitumen originated from milling different asphalt roads. This milled asphalt was heated in a heating drum and mixed with the roof granulate. The roof granulate was first premixed with the CNSL residue and then cold added to the preheated minerals and the
After this test range test pieces of the samples with 10% up to and including 25%
CNSL addition were applied on a roof in Heerhugowaard (NL). During processing the shingles with 10% and 15% CNSL addition to the recycled aged roof bitumen showed less good processing properties. The shingles were at an outside temperature of 12 C too rigid during processing. The shingles with an addition of 20% showed the best processing properties. This composition resembles most that of a shingle based on new bitumen (production 2008).
Example 2:
Method for rejuvenating a bitumen containing recycled milled asphalt composition.
For the asphalt tests rheologic tests were performed by measuring the viscosity of mixtures of aged road construction bitumen and aged roof bitumen at different temperatures while mixing in different percentages of CNSL residue, obtained by distilling cashew nut shell liquid to up to a temperature of 315 C. Viz Table 2 for the results.
Table 2 Aged Aged CNSL
road Viscosity at Viscosity at Viscosity at Viscosity at Viscosity at Viscosity at Number roof residue construction loo *c 120 C 140 C 160 C 180 C
Bitumen EMC
Bitumen 1 20 75 5 40,000 7,000 1,450 650 250 100 2 40 50 10 49,000 7,800 1,850 750 350 105 3 60 25 15 57,000 8,700 2,900 850 450 110 4 80 0 20 74,000 11,000 5,300 11,00 675 5 loo 0 o solid solid solid 8,000 6,300 4,850 70h00 4800 1,000 600 300 loo 80 In the rheology tests the roof bitumen and the CNSL were used in a fixed proportion.
The proportion was 4 parts of roof bitumen: 1 part CNSL residue (on a weight basis). The origin of the roof bitumen was the same as the tests described earlier. The aged road construction bitumen originated from milling different asphalt roads. This milled asphalt was heated in a heating drum and mixed with the roof granulate. The roof granulate was first premixed with the CNSL residue and then cold added to the preheated minerals and the
7 milled asphalt in the asphalt mixer. This mixture was mixed homogeneously and additionally tested, as shown in Table 3.
Table 3 Closed asphalt concrete 0/16 with 50%-machined asphalt Serie I Serie 2 Roof Serie 3 Roof 40/60 and milled granulate and granulate and milled milled Composition 11/16 21.81 21.81 21.81
Table 3 Closed asphalt concrete 0/16 with 50%-machined asphalt Serie I Serie 2 Roof Serie 3 Roof 40/60 and milled granulate and granulate and milled milled Composition 11/16 21.81 21.81 21.81
8/11 9.54 7.05 9.54 Sand 12.76 8.57 12.76 Filler (chalk) 3.01 3.01 Milled material 49.90 49-90 49.90 Roofing granulate 12.11 Roof granulate bitumen 2.42 Bitumen 40/60 3.01 CNSL Residue 0.59 0.59 Total 100.0 100.0 100.0 - -Series i Series 2 Series 3 Marshall stability 7,370 8,320 7,710 Marshall Quotient 1,391 1,631 1,402 Marshall Flow 5.3 5.1 5-5 -ITS 2 degrees 415 290 kPa ITS 22 degrees 204 102 kPa ITS 60 degrees 14 13 kPa Ind. 20 degrees/3 h 1.60 2.67 mr11 Of mixture 2 a test area of asphalt was applied in a business area in Breda in June 2008 with a width of 3 m and a length of 25 m. The processing was performed in the usual manner with a standard asphalt application machine and the asphalt was densified in the usual manner with a steel roller. The processing of this asphalt mixture was identical to a normal DAB 0/16. Also the properties of the asphalt fell within the production parameters for DAB 0/16 (viz table above).
Explanation of the raw materials:
Roof granulate: This was a mixture of different bituminous roofings derived from demolition labor and roofing companies in replacing old bituminous roofs. This demolition debris was mild and homogeneoused. This substantially consisted of bitumen being APP
modified with minerals and glass fiber reinforcement. During milling a granulate was obtained which could vary in size from 0,5 mm to 15 mm.
Milled asphalt: This was asphalt granulate obtained by milling aged or damaged asphalt road. Milling was performed selectively such that different qualities were kept separate in for example DAB, STAB, ZOAB and the like. After milling the granulate was classified by sieving.
CNSL residue: This was a residue product of the raw cashew nut shell liquid distillation taking place up to 315 C.
All main components of the DAB 0/16 were products derived from residual streams, and by mixing in the described proportions an asphalt composition was made corresponding to asphalt based on new raw materials.
Explanation of the raw materials:
Roof granulate: This was a mixture of different bituminous roofings derived from demolition labor and roofing companies in replacing old bituminous roofs. This demolition debris was mild and homogeneoused. This substantially consisted of bitumen being APP
modified with minerals and glass fiber reinforcement. During milling a granulate was obtained which could vary in size from 0,5 mm to 15 mm.
Milled asphalt: This was asphalt granulate obtained by milling aged or damaged asphalt road. Milling was performed selectively such that different qualities were kept separate in for example DAB, STAB, ZOAB and the like. After milling the granulate was classified by sieving.
CNSL residue: This was a residue product of the raw cashew nut shell liquid distillation taking place up to 315 C.
All main components of the DAB 0/16 were products derived from residual streams, and by mixing in the described proportions an asphalt composition was made corresponding to asphalt based on new raw materials.
Claims (12)
1 Method for rejuvenating a bitumen containing compositions, said method comprising adding to the bitumen containing compositions a distillation residue of cashew nut shell liquid (CNSL), said distillation residue being obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350°C and being non-reactive
2 Method according to claim 1, wherein the distillation residue has a viscosity which is comprised between 1000 and 30,000 mPa.s -1
3 Method according to claim 2, wherein the distillation residue has a viscosity which is comprised between 1,000 and 10,000 mPa.s -1
4 Method according to claim 3, wherein the distillation residue has a viscosity which is comprised between 1,000 and 2,500 mPa s -1
Method according to claim 4, wherein the distillation residue has a viscosity which is comprised substantially 1,500 mPa s -1
6 Method according to claim 1 or 2, wherein the distillation residue has an average saturation factor of 1 to 5
7 Method according to claim 6, wherein the distillation residue has an average saturation factor of 1 2 to 13
8. Method according to any one of claims 1 to 7, wherein the bitumen containing composition is selected from. bitumen, asphalt, roof covering, insulating material, shore covering material, and anti-drum plates
9 Method according to any one of claims 1 to 8, wherein the bitumen containing compositions is in addition made up with one of more of the following substances resin whether or not vegetable, oil whether or not vegetable, paraffins, polymers
Bitumen containing composition which has been rejuvenated by application of a method according to any one of claims 1 to 9
11. Bitumen containing composition according to claim 10, wherein the rejuvenated bitumen containing compositions is selected from: asphalt, insulating material, roofing material, shore covering material and anti-drum plates.
12. Method according to any one of claims 1 to 8, wherein the bitumen containing compositions is in addition made up with one of more of the following substances: EVA, SBS, APP, PE metallocenes and synthetic waxes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2002442A NL2002442C2 (en) | 2009-01-22 | 2009-01-22 | Process for rejuvenating a composition containing a compound. |
| NL2002442 | 2009-01-22 | ||
| PCT/NL2010/000007 WO2010085140A1 (en) | 2009-01-22 | 2010-01-21 | Method for rejuvenating a bitumen containing composition |
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| Publication Number | Publication Date |
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| CA2749024A1 CA2749024A1 (en) | 2010-07-29 |
| CA2749024C true CA2749024C (en) | 2016-10-11 |
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|---|---|---|---|
| CA2749024A Expired - Fee Related CA2749024C (en) | 2009-01-22 | 2010-01-21 | Method for rejuvenating a bitumen containing composition |
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| US (1) | US8702857B2 (en) |
| EP (1) | EP2389415B1 (en) |
| JP (1) | JP5681117B2 (en) |
| KR (1) | KR101743628B1 (en) |
| CN (1) | CN102292395B (en) |
| AU (1) | AU2010207062B2 (en) |
| BR (1) | BRPI1007561B8 (en) |
| CA (1) | CA2749024C (en) |
| DK (1) | DK2389415T3 (en) |
| ES (1) | ES2523498T3 (en) |
| NL (1) | NL2002442C2 (en) |
| PL (1) | PL2389415T3 (en) |
| WO (1) | WO2010085140A1 (en) |
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| FR2997945B1 (en) * | 2012-11-14 | 2017-10-20 | Colas Sa | GLYCEROL-MODIFIED BINDER FOR THE PRODUCTION OF HIGH-RATE HYDROCARBON ENVELOPES IN RECYCLED BITUMINOUS MATERIALS |
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| EP3208288B1 (en) | 2015-11-26 | 2018-04-18 | Ventraco Innovation Centre Amsterdam B.V. | Process for preparing a polymerized cashew nut shell liquid and its use for the preparation of a bitumen composition |
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| GB2066820B (en) * | 1980-01-08 | 1984-03-14 | Minnesota Mining & Mfg | Purification of cashew nut shell liquid |
| US6186700B1 (en) * | 1994-11-17 | 2001-02-13 | James S. Omann | Pavement method and composition with reduced asphalt roofing waste |
| EP0854895B1 (en) * | 1995-10-09 | 2001-07-25 | Kao Corporation | Liquid amine compound and bituminous emulsifier produced using same |
| JPH11140327A (en) * | 1997-11-13 | 1999-05-25 | Nisshoku Sukenekutadei Kagaku Kk | Asphalt composition |
| IL139231A0 (en) | 1998-05-27 | 2001-11-25 | Euro Celtique Sa | Preparations for the application of anti-inflammatory, especially antiseptic, agents and/or agents promoting the healing of wounds to the lower respiratory tract |
| WO2001074948A1 (en) * | 2000-03-30 | 2001-10-11 | University Of Alaska Fairbanks | Construction materials and soil stabilization using vegetable oil |
| CN1233721C (en) * | 2002-07-30 | 2005-12-28 | 中国石油化工股份有限公司 | Old road pitch modifying regenerant and preparing method thereof |
| CN1247701C (en) * | 2004-01-02 | 2006-03-29 | 桂希衡 | Waste and old asphalt modifiar |
| JP4699726B2 (en) * | 2004-09-15 | 2011-06-15 | 株式会社Adeka | Surfactant composition |
| DE102004047793B3 (en) * | 2004-09-29 | 2006-05-11 | Hänel-Labryga, Carsten | Bitumen-containing binder |
| JP2006111839A (en) * | 2004-10-18 | 2006-04-27 | Yasuhara Chemical Co Ltd | Antibacterial polylactic acid resin composition |
| AU2008204500B2 (en) | 2007-01-08 | 2010-10-21 | Shell Internationale Research Maatschappij B.V. | Rejuvenating agent and process for recycling of asphalt |
| DE102008000255A1 (en) * | 2008-02-08 | 2009-08-20 | Evonik Goldschmidt Gmbh | siloxane |
| US8133316B2 (en) * | 2008-07-30 | 2012-03-13 | Shell Oil Company | Process for preparing an asphalt mixture |
| GB2462322A (en) * | 2008-08-05 | 2010-02-10 | Aggregate Ind Uk Ltd | Asphalt Rejuvenation |
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-
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- 2009-01-22 NL NL2002442A patent/NL2002442C2/en not_active IP Right Cessation
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2010
- 2010-01-21 EP EP10703129.6A patent/EP2389415B1/en not_active Not-in-force
- 2010-01-21 CN CN201080005286.2A patent/CN102292395B/en not_active Expired - Fee Related
- 2010-01-21 PL PL10703129T patent/PL2389415T3/en unknown
- 2010-01-21 DK DK10703129.6T patent/DK2389415T3/en active
- 2010-01-21 KR KR1020117017529A patent/KR101743628B1/en not_active Expired - Fee Related
- 2010-01-21 US US13/144,370 patent/US8702857B2/en active Active
- 2010-01-21 CA CA2749024A patent/CA2749024C/en not_active Expired - Fee Related
- 2010-01-21 AU AU2010207062A patent/AU2010207062B2/en not_active Ceased
- 2010-01-21 JP JP2011547835A patent/JP5681117B2/en not_active Expired - Fee Related
- 2010-01-21 WO PCT/NL2010/000007 patent/WO2010085140A1/en not_active Ceased
- 2010-01-21 BR BRPI1007561A patent/BRPI1007561B8/en not_active IP Right Cessation
- 2010-01-21 ES ES10703129.6T patent/ES2523498T3/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| ES2523498T3 (en) | 2014-11-26 |
| WO2010085140A1 (en) | 2010-07-29 |
| KR101743628B1 (en) | 2017-06-05 |
| AU2010207062B2 (en) | 2015-05-21 |
| DK2389415T3 (en) | 2014-11-17 |
| US8702857B2 (en) | 2014-04-22 |
| WO2010085140A8 (en) | 2010-09-16 |
| US20120017804A1 (en) | 2012-01-26 |
| CA2749024A1 (en) | 2010-07-29 |
| BRPI1007561A2 (en) | 2016-02-16 |
| EP2389415B1 (en) | 2014-08-13 |
| JP5681117B2 (en) | 2015-03-04 |
| NL2002442C2 (en) | 2010-07-26 |
| CN102292395A (en) | 2011-12-21 |
| EP2389415A1 (en) | 2011-11-30 |
| BRPI1007561B8 (en) | 2019-07-02 |
| BRPI1007561B1 (en) | 2019-06-18 |
| KR20110124749A (en) | 2011-11-17 |
| CN102292395B (en) | 2014-07-23 |
| AU2010207062A1 (en) | 2011-07-28 |
| PL2389415T3 (en) | 2015-02-27 |
| JP2012515829A (en) | 2012-07-12 |
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