US2179208A - Manufacture of improved asphalts - Google Patents
Manufacture of improved asphalts Download PDFInfo
- Publication number
- US2179208A US2179208A US112348A US11234836A US2179208A US 2179208 A US2179208 A US 2179208A US 112348 A US112348 A US 112348A US 11234836 A US11234836 A US 11234836A US 2179208 A US2179208 A US 2179208A
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- United States
- Prior art keywords
- penetration
- temperature
- air
- manufacture
- asphalts
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/04—Working-up pitch, asphalt, bitumen by chemical means reaction by blowing or oxidising, e.g. air, ozone
Definitions
- the stock to be worked up a heavy petroleum oil residue,'which We designate the residuum, is in accordance with the invention heated with air and a small or catalytic amount of a polymerizing catalyst.
- the temperature of treatment may be 225-450 F.
- the material is suitably stirred or agitated.
- the time of treatment is short, as for instance 20 to 300 minutes, e. g., minutes with 5 per cent FeCla at 260-280" F.
- catalysts we may employ a small amount of acid, as for instance chloro-sulphonic, phosphoric, iiuoboric, hydrochloric, nitric or sulphuric acids, and halides, as ferrie chloride, aluminum bromide, chloride, iodide, halides similarly of copper, tin, zinc, antimony,' arsenic, titanium, etc., hydroxides of sodium, potassium, etc., calcium oxide, sodium carbonate, metallic sodium, nitrogen bases, ozonides in minute amounts and peroxides in minute amounts.
- Particularly desirable catalysts are the acid acting catalysts, as sulphuric acid, ferric chloride. halides of aluminum, copper, tin, zinc, antimony, arsenic, titanium, boron fluoride, chlorsulphonic,
- the petroleum residuum first to an air-blowing, maintaining the temperature at about 450 F. for 5 about 600 minutes, the material being agitated by the injected air or other suitable means, and then theair-blowing is discontinued and the polymerizing catalyst is incorporated, e. g., 0.5 per cent AlCla at a temperature of about 250 F. 10 and the heating is maintained at 3D0-400 F. for 20 to 30 minutes.
- Such air-blowing stage can be operated to some desired penetration standard, as for instance 92 penetration at 77 F., and then the polymerization treatment is apu plied.
- the product has 20 a peneration of at 77 F. and ductility l0 at 39 F. and 72.5 at '17 F.
- Similar petroleum residuum is air-blown at a temperature of about 450 F. for about 12 hours, and this material is 2.a then heated with 0.5 per cent of sulphuric acid at 350 F. for 30 minutes.
- the product has a melting point of 137.5, ductility at 39 F. 3.5, ductility at 77 F. 29, penetration at 32 F. 17, penetration at 77 F. 44, penetration at 115 F. 30 155, and susceptibility coefficient 3.1 (the susceptibility coeiiicient indicates the ratio of penetration at different temperatures, viz., S equals the penetration at 115 minus the penetration at 32 over the penetration at '77).
- a petroleum residuum is similarly air-blown iirst, and then is heated with 0.9 per cent of boron fluoride in a BFa-ether mixture at a temperature of 400 F. for 15 minutes.
- the product has a melting point of 140 F., duc- 40 tility at 38 F. 4, and at '17 F. 21,- penetration at 32 F. 19, and at '77 F. 47, and at 115 F. 146,
- the petroleum residuum is similarly rst air-blown as above, and then is 45 heated with 0.5 per cent of FeCla at 400 F. for 30 minutes.
- the product has a melting point of F., ductility at 39 F. 4, and at '17 F. 30, penetration at 32 F. 17, and at 77 F. 51, and at 115 F. 192, and susceptibility factor 3.4.
- Asphalts produced according to the present invention have particularly'shiny black surfaces, and are not buttery or short in consistency as has been the characteristic of asphalts from blended stocks. They also have higher melting 55 points at agiven penetration, at say '17 F., than a customary asphalt, and better susceptibility coeicients.
- a process of making asphalt which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 30G-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a small amount of a polymerizlng catalyst.
- a process of making asphalt which comprises air-blowing a petroleum residuum in the absence of an added catalyst While maintaining the temperature at 30o-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a small amount of an acid-acting catalyst.
- a process of making asphalt which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 30D-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a catalyic amount of sulphuric acid.
- a process of making asphalt which comprises air-blowing a petroleum residuum in the absence of an'added catalyst while maintaining the temperature at 300-500" F., for one to thirty or more hours, then heating the material with a catalytic amount of boron fluoride.
- a process of making asphalt which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 300-500" F., for one to thirty or more hours, then heating the material with a catalytic amount of ferric chloride.
Description
Nov. 7, 1939. R. E BURK ET AL "2.179.208
MANUFACTURE OF IMPROVED ASPHALTS Filed NOV. 25, 1936 Resia/aufn Oxygen patented Nov. 7, 1939 UNITED STATES PATENT OFFICE MANUFACTURE 0F IMPROVED ASPHALTS Application November 23, 1936, Serial No. 112,348
5 Claims.
lin manufacturing asphalt, it has been the custom to blow the petroleum residuum with air, and maintain the temperature at about 30G-500 F. The procedure is very tedious, requiring a long duration of action in order to bring the material to useable characteristics of high melting point and loW penetration. Although enormous quantities of oxygen are brought into relation with the hydrocarbon material, there is not a great increase in the oxygen content, and the action is largely a dehydrogenation and conjoining of hydrocarbon molecules. We have now found that particularly eifective action in thickening up the material to desirable penetration r and melting point can be obtained Without the of but a few of the various ways in which the principle of the invention may be employed.
In said annexed drawing the sole figure is a diagrammatic showing on the order of a process flow sheet.
The stock to be worked up, a heavy petroleum oil residue,'which We designate the residuum, is in accordance with the invention heated with air and a small or catalytic amount of a polymerizing catalyst. The temperature of treatment may be 225-450 F. Desirably, the material is suitably stirred or agitated. The time of treatment is short, as for instance 20 to 300 minutes, e. g., minutes with 5 per cent FeCla at 260-280" F. As catalysts, we may employ a small amount of acid, as for instance chloro-sulphonic, phosphoric, iiuoboric, hydrochloric, nitric or sulphuric acids, and halides, as ferrie chloride, aluminum bromide, chloride, iodide, halides similarly of copper, tin, zinc, antimony,' arsenic, titanium, etc., hydroxides of sodium, potassium, etc., calcium oxide, sodium carbonate, metallic sodium, nitrogen bases, ozonides in minute amounts and peroxides in minute amounts. Particularly desirable catalysts are the acid acting catalysts, as sulphuric acid, ferric chloride. halides of aluminum, copper, tin, zinc, antimony, arsenic, titanium, boron fluoride, chlorsulphonic,
(Cl. 19d-74) phosphoric, fluoboric, hydrochloric, nitric acids, etc.
In some instances, it is desirable to subject the petroleum residuum first to an air-blowing, maintaining the temperature at about 450 F. for 5 about 600 minutes, the material being agitated by the injected air or other suitable means, and then theair-blowing is discontinued and the polymerizing catalyst is incorporated, e. g., 0.5 per cent AlCla at a temperature of about 250 F. 10 and the heating is maintained at 3D0-400 F. for 20 to 30 minutes. Such air-blowing stage can be operated to some desired penetration standard, as for instance 92 penetration at 77 F., and then the polymerization treatment is apu plied.
As an example: A petroleum residuum having initially a penetration of 200 at '77 F., is heated with 1.5 per cent of ferrie chloride at a temperature of 350 F., for 60 minutes. The product has 20 a peneration of at 77 F. and ductility l0 at 39 F. and 72.5 at '17 F.
As another example: Similar petroleum residuum is air-blown at a temperature of about 450 F. for about 12 hours, and this material is 2.a then heated with 0.5 per cent of sulphuric acid at 350 F. for 30 minutes. The product has a melting point of 137.5, ductility at 39 F. 3.5, ductility at 77 F. 29, penetration at 32 F. 17, penetration at 77 F. 44, penetration at 115 F. 30 155, and susceptibility coefficient 3.1 (the susceptibility coeiiicient indicates the ratio of penetration at different temperatures, viz., S equals the penetration at 115 minus the penetration at 32 over the penetration at '77).
As another example: A petroleum residuum is similarly air-blown iirst, and then is heated with 0.9 per cent of boron fluoride in a BFa-ether mixture at a temperature of 400 F. for 15 minutes., The product has a melting point of 140 F., duc- 40 tility at 38 F. 4, and at '17 F. 21,- penetration at 32 F. 19, and at '77 F. 47, and at 115 F. 146,
Y and a susceptibility coefficient of 2.7.
As another example: The petroleum residuum is similarly rst air-blown as above, and then is 45 heated with 0.5 per cent of FeCla at 400 F. for 30 minutes. The product has a melting point of F., ductility at 39 F. 4, and at '17 F. 30, penetration at 32 F. 17, and at 77 F. 51, and at 115 F. 192, and susceptibility factor 3.4.
Asphalts produced according to the present invention have particularly'shiny black surfaces, and are not buttery or short in consistency as has been the characteristic of asphalts from blended stocks. They also have higher melting 55 points at agiven penetration, at say '17 F., than a customary asphalt, and better susceptibility coeicients.
Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims, or the equivalent of such, be employed.
We therefore particularly point out and distinctly claim as our invention:
1. A process of making asphalt, which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 30G-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a small amount of a polymerizlng catalyst.
2. A process of making asphalt, which comprises air-blowing a petroleum residuum in the absence of an added catalyst While maintaining the temperature at 30o-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a small amount of an acid-acting catalyst.
3. A process of making asphalt, which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 30D-500 F., for one to thirty or more hours, then heating the material at a temperature at least 300 F. with a catalyic amount of sulphuric acid. 4. A process of making asphalt, which comprises air-blowing a petroleum residuum in the absence of an'added catalyst while maintaining the temperature at 300-500" F., for one to thirty or more hours, then heating the material with a catalytic amount of boron fluoride.
5. A process of making asphalt, which comprises air-blowing a petroleum residuum in the absence of an added catalyst while maintaining the temperature at 300-500" F., for one to thirty or more hours, then heating the material with a catalytic amount of ferric chloride.
ROBERT E. BURK. CHARLES H. WHITACRE.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US112348A US2179208A (en) | 1936-11-23 | 1936-11-23 | Manufacture of improved asphalts |
US197680A US2287511A (en) | 1936-11-23 | 1938-03-23 | Asphalt manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US112348A US2179208A (en) | 1936-11-23 | 1936-11-23 | Manufacture of improved asphalts |
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US2179208A true US2179208A (en) | 1939-11-07 |
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US112348A Expired - Lifetime US2179208A (en) | 1936-11-23 | 1936-11-23 | Manufacture of improved asphalts |
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Cited By (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2421421A (en) * | 1944-05-26 | 1947-06-03 | Lion Oil Co | Process of treating high-molecularweight hydrocarbons |
US2450756A (en) * | 1945-04-30 | 1948-10-05 | Lion Oil Co | Air-blown asphalt and catalytic preparation thereof |
US2471102A (en) * | 1945-12-04 | 1949-05-24 | Sun Chemical Corp | Treatment of microcrystalline residues and products resulting there-from |
US2506283A (en) * | 1946-05-13 | 1950-05-02 | California Research Corp | Preparation of asphalt compositions |
US2524644A (en) * | 1945-08-03 | 1950-10-03 | Richardson Co | Method of preparing molding bituminous material and product thereof |
US2560650A (en) * | 1948-09-01 | 1951-07-17 | Kronstein Max | Process for modifying, solidifying, and insolubilizing asphalts |
US2605222A (en) * | 1948-12-14 | 1952-07-29 | Shell Dev | Fluid for drilling wells |
DE889503C (en) * | 1942-03-08 | 1953-09-10 | Shell Ag | Process for the production of bituminous substances that are not very temperature-sensitive |
US2676910A (en) * | 1951-05-26 | 1954-04-27 | Standard Oil Dev Co | Process for producing and refining asphalt |
US2755223A (en) * | 1955-01-17 | 1956-07-17 | Shell Dev | Asphalt product and preparation thereof |
US2776932A (en) * | 1953-05-06 | 1957-01-08 | Standard Oil Co | Process for oxidizing asphalts |
US2859167A (en) * | 1954-02-08 | 1958-11-04 | Standard Oil Co | Production of blown asphalts in the presence of a phosphorous containing catalyst |
US2861940A (en) * | 1955-07-29 | 1958-11-25 | Standard Oil Co | Production of blown asphalts |
US2864760A (en) * | 1954-11-26 | 1958-12-16 | Croy Friedrich | Process for the manufacture of electrode pitches |
US2886506A (en) * | 1953-11-30 | 1959-05-12 | Standard Oil Co | Production of blown asphalts |
US3119761A (en) * | 1959-12-21 | 1964-01-28 | Minnesota Mining & Mfg | Method for preparing thermosetting resinous materials |
US3130144A (en) * | 1961-09-19 | 1964-04-21 | Sun Oil Co | Chemically treated asphalt |
DE1180083B (en) * | 1960-05-12 | 1964-10-22 | British Petroleum Co | Process for blowing bitumen |
US3203906A (en) * | 1959-08-10 | 1965-08-31 | Borax Cons Ltd | Bituminous shielding composition |
US3258419A (en) * | 1963-03-25 | 1966-06-28 | Union Oil Co | Catalytic airblown asphalt |
US4202755A (en) * | 1978-11-03 | 1980-05-13 | Witco Chemical Corp. | Catalytic method for making pitch |
EP0053041A2 (en) * | 1980-11-24 | 1982-06-02 | Ashland Oil, Inc. | Processes for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefrom |
US4456523A (en) * | 1980-11-24 | 1984-06-26 | Ashland Oil, Inc. | Processes for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefrom |
US4456524A (en) * | 1982-04-02 | 1984-06-26 | Ashland Oil, Inc. | Process for enhancing catalytic response of asphalt oxidation catalyst |
US4559128A (en) * | 1984-08-31 | 1985-12-17 | Chevron Research Company | Method for producing industrial asphalts |
US4883581A (en) * | 1986-10-03 | 1989-11-28 | Exxon Chemical Patents Inc. | Pretreatment for reducing oxidative reactivity of baseoils |
US5059300A (en) * | 1986-12-31 | 1991-10-22 | Chevron Research And Technology Company | Asphalts modified by solvent deasphalted bottoms and phosphoric acid |
US5098480A (en) * | 1990-03-05 | 1992-03-24 | Chevron Research And Technology Company | Industrial asphalts |
US5228977A (en) * | 1991-11-18 | 1993-07-20 | Exxon Research & Engineering Company | Method of producing asphalt having an increased penetration and penetration index |
US5611910A (en) * | 1995-06-02 | 1997-03-18 | Owens-Corning Fiberglas Technology, Inc. | Method for reducing sulfur emissions in processing air-blown asphalt |
WO1997029168A1 (en) * | 1996-02-12 | 1997-08-14 | Owens Corning | Method for reducing sulfur-oxide emissions from an asphalt air-blowing process |
US6036843A (en) * | 1998-12-30 | 2000-03-14 | Owens Corning Fiberglas Technology, Inc. | Method for reducing hydrogen chloride emissions from an asphalt air-blowing process |
US6162410A (en) * | 1998-12-30 | 2000-12-19 | Owens Corning Fiberglass Corporation | Method for reducing hydrogen chloride emissions from air-blown asphalt |
US6571648B2 (en) | 2001-03-22 | 2003-06-03 | Kansas Department Of Transportation | Method of accelerated aging of neat asphalt binder using microwave radiation process |
US20070131578A1 (en) * | 2005-12-14 | 2007-06-14 | Building Materials Investment Corporation | Preparation of industrial asphalt |
US20080092777A1 (en) * | 2004-07-23 | 2008-04-24 | Matthews John B | Process And Apparatus For Modifying Bitumen |
US7374659B1 (en) | 2004-06-22 | 2008-05-20 | Asphalt Technology, Llc. | Methods and systems for modifying asphalts |
US20090000514A1 (en) * | 2007-06-28 | 2009-01-01 | Trumbore David C | Method of producing roofing shingle coating asphalt from non-coating grade asphalt |
US20090000515A1 (en) * | 2007-06-28 | 2009-01-01 | Trumbore David C | Process of producing roofing shingle coating asphalt |
WO2009126646A1 (en) * | 2008-04-07 | 2009-10-15 | Innophos, Inc. | Air blown asphalt including polyphosphoric acid |
US20090312872A1 (en) * | 2008-06-13 | 2009-12-17 | Asphalt Technology Llc | Methods and systems for manufacturing modified asphalts |
US7951240B2 (en) | 2007-06-28 | 2011-05-31 | Owens Corning Intellectual Capital, Llc | Process of producing roofing shingle coating asphalt allowing more material options |
US20110197785A1 (en) * | 2007-06-28 | 2011-08-18 | Owens Corning Intellectual Capital, Llc | Roofing coating asphalt composition |
WO2014035262A1 (en) * | 2012-08-31 | 2014-03-06 | John Brodie Matthews | Reactor apparatus and methods |
US8901211B2 (en) | 2011-05-27 | 2014-12-02 | Building Materials Investment Corporation | Preparation of industrial asphalt |
US9187644B2 (en) | 2013-03-15 | 2015-11-17 | Building Materials Investment Corporation | Continuous processing of asphalt formulations |
US9457354B2 (en) | 2013-03-15 | 2016-10-04 | Building Materials Investment Corporation | System and method for continuous processing of recyclable material |
US9556383B2 (en) | 2013-03-15 | 2017-01-31 | Building Materials Investment Corporation | Asphalt oxidation technique |
US9598610B2 (en) | 2014-05-12 | 2017-03-21 | Tamko Building Products, Inc. | Asphalt upgrading without oxidation |
US10633540B2 (en) | 2016-10-13 | 2020-04-28 | Building Materials Investment Corporation | Preparation of blown polymer modified asphalt |
US10703980B2 (en) | 2016-09-27 | 2020-07-07 | Building Materials Investment Corporation | Asphalt blow still with sectionalized columns |
US11053391B2 (en) | 2016-10-06 | 2021-07-06 | Building Materials Investment Corporation | Polymer modified asphalt for industrial applications |
US11326107B2 (en) | 2019-02-26 | 2022-05-10 | Building Materials Investment Corporation | Utilizing packed columns for asphalt air blowing |
-
1936
- 1936-11-23 US US112348A patent/US2179208A/en not_active Expired - Lifetime
Cited By (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE889503C (en) * | 1942-03-08 | 1953-09-10 | Shell Ag | Process for the production of bituminous substances that are not very temperature-sensitive |
US2421421A (en) * | 1944-05-26 | 1947-06-03 | Lion Oil Co | Process of treating high-molecularweight hydrocarbons |
US2450756A (en) * | 1945-04-30 | 1948-10-05 | Lion Oil Co | Air-blown asphalt and catalytic preparation thereof |
US2524644A (en) * | 1945-08-03 | 1950-10-03 | Richardson Co | Method of preparing molding bituminous material and product thereof |
US2471102A (en) * | 1945-12-04 | 1949-05-24 | Sun Chemical Corp | Treatment of microcrystalline residues and products resulting there-from |
US2506283A (en) * | 1946-05-13 | 1950-05-02 | California Research Corp | Preparation of asphalt compositions |
US2560650A (en) * | 1948-09-01 | 1951-07-17 | Kronstein Max | Process for modifying, solidifying, and insolubilizing asphalts |
US2605222A (en) * | 1948-12-14 | 1952-07-29 | Shell Dev | Fluid for drilling wells |
US2676910A (en) * | 1951-05-26 | 1954-04-27 | Standard Oil Dev Co | Process for producing and refining asphalt |
US2776932A (en) * | 1953-05-06 | 1957-01-08 | Standard Oil Co | Process for oxidizing asphalts |
US2886506A (en) * | 1953-11-30 | 1959-05-12 | Standard Oil Co | Production of blown asphalts |
US2859167A (en) * | 1954-02-08 | 1958-11-04 | Standard Oil Co | Production of blown asphalts in the presence of a phosphorous containing catalyst |
US2864760A (en) * | 1954-11-26 | 1958-12-16 | Croy Friedrich | Process for the manufacture of electrode pitches |
US2755223A (en) * | 1955-01-17 | 1956-07-17 | Shell Dev | Asphalt product and preparation thereof |
US2861940A (en) * | 1955-07-29 | 1958-11-25 | Standard Oil Co | Production of blown asphalts |
US3203906A (en) * | 1959-08-10 | 1965-08-31 | Borax Cons Ltd | Bituminous shielding composition |
US3119761A (en) * | 1959-12-21 | 1964-01-28 | Minnesota Mining & Mfg | Method for preparing thermosetting resinous materials |
DE1180083B (en) * | 1960-05-12 | 1964-10-22 | British Petroleum Co | Process for blowing bitumen |
US3130144A (en) * | 1961-09-19 | 1964-04-21 | Sun Oil Co | Chemically treated asphalt |
US3258419A (en) * | 1963-03-25 | 1966-06-28 | Union Oil Co | Catalytic airblown asphalt |
US4202755A (en) * | 1978-11-03 | 1980-05-13 | Witco Chemical Corp. | Catalytic method for making pitch |
EP0053041A2 (en) * | 1980-11-24 | 1982-06-02 | Ashland Oil, Inc. | Processes for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefrom |
EP0053041A3 (en) * | 1980-11-24 | 1982-08-04 | Ashland Oil, Inc. | Processes for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefrom |
US4456523A (en) * | 1980-11-24 | 1984-06-26 | Ashland Oil, Inc. | Processes for producing high grade asphaltic materials from low grade bituminous materials and products resulting therefrom |
US4456524A (en) * | 1982-04-02 | 1984-06-26 | Ashland Oil, Inc. | Process for enhancing catalytic response of asphalt oxidation catalyst |
US4559128A (en) * | 1984-08-31 | 1985-12-17 | Chevron Research Company | Method for producing industrial asphalts |
US4883581A (en) * | 1986-10-03 | 1989-11-28 | Exxon Chemical Patents Inc. | Pretreatment for reducing oxidative reactivity of baseoils |
US5059300A (en) * | 1986-12-31 | 1991-10-22 | Chevron Research And Technology Company | Asphalts modified by solvent deasphalted bottoms and phosphoric acid |
US5098480A (en) * | 1990-03-05 | 1992-03-24 | Chevron Research And Technology Company | Industrial asphalts |
US5228977A (en) * | 1991-11-18 | 1993-07-20 | Exxon Research & Engineering Company | Method of producing asphalt having an increased penetration and penetration index |
US5320739A (en) * | 1991-11-18 | 1994-06-14 | Exxon Research And Engineering Company | Method of producing asphalt having an increased penetration and penetration index |
US5611910A (en) * | 1995-06-02 | 1997-03-18 | Owens-Corning Fiberglas Technology, Inc. | Method for reducing sulfur emissions in processing air-blown asphalt |
US6383464B1 (en) | 1995-06-02 | 2002-05-07 | Owens Corning Fiberglas Technology, Inc. | Method for reducing sulfur-oxide emissions from an asphalt air-blowing process |
WO1997029168A1 (en) * | 1996-02-12 | 1997-08-14 | Owens Corning | Method for reducing sulfur-oxide emissions from an asphalt air-blowing process |
US6162410A (en) * | 1998-12-30 | 2000-12-19 | Owens Corning Fiberglass Corporation | Method for reducing hydrogen chloride emissions from air-blown asphalt |
US6036843A (en) * | 1998-12-30 | 2000-03-14 | Owens Corning Fiberglas Technology, Inc. | Method for reducing hydrogen chloride emissions from an asphalt air-blowing process |
US6325986B1 (en) | 1998-12-30 | 2001-12-04 | Owens Corning Fiberglas Technology, Inc. | Method for reducing hydrogen chloride emissions from air-blown asphalt |
US6571648B2 (en) | 2001-03-22 | 2003-06-03 | Kansas Department Of Transportation | Method of accelerated aging of neat asphalt binder using microwave radiation process |
US7374659B1 (en) | 2004-06-22 | 2008-05-20 | Asphalt Technology, Llc. | Methods and systems for modifying asphalts |
US8252168B1 (en) | 2004-06-22 | 2012-08-28 | Asphalt Technology Llc | Methods and systems for modifying asphalts |
US7988846B1 (en) | 2004-06-22 | 2011-08-02 | Asphalt Technology Llc | Methods and systems for modifying asphalts |
US7871509B2 (en) * | 2004-07-23 | 2011-01-18 | John Brodie Matthews | Process and apparatus for modifying bitumen |
US20080092777A1 (en) * | 2004-07-23 | 2008-04-24 | Matthews John B | Process And Apparatus For Modifying Bitumen |
US20070131578A1 (en) * | 2005-12-14 | 2007-06-14 | Building Materials Investment Corporation | Preparation of industrial asphalt |
US7901563B2 (en) | 2005-12-14 | 2011-03-08 | Building Materials Investment Corporation | Preparation of industrial asphalt |
US7951239B2 (en) | 2007-06-28 | 2011-05-31 | Owens Corning Intellectual Capital, Llc | Method of producing roofing shingle coating asphalt from non-coating grade asphalt |
US7857904B2 (en) | 2007-06-28 | 2010-12-28 | Owens Corning Intellectual Capital, Llc | Process of producing roofing shingle coating asphalt |
US7951240B2 (en) | 2007-06-28 | 2011-05-31 | Owens Corning Intellectual Capital, Llc | Process of producing roofing shingle coating asphalt allowing more material options |
US20090000515A1 (en) * | 2007-06-28 | 2009-01-01 | Trumbore David C | Process of producing roofing shingle coating asphalt |
US20110197785A1 (en) * | 2007-06-28 | 2011-08-18 | Owens Corning Intellectual Capital, Llc | Roofing coating asphalt composition |
US20090000514A1 (en) * | 2007-06-28 | 2009-01-01 | Trumbore David C | Method of producing roofing shingle coating asphalt from non-coating grade asphalt |
US8753442B2 (en) | 2007-06-28 | 2014-06-17 | Owens Corning Intellectual Capital, Llc | Roofing coating asphalt composition |
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US20090312872A1 (en) * | 2008-06-13 | 2009-12-17 | Asphalt Technology Llc | Methods and systems for manufacturing modified asphalts |
US7906011B2 (en) | 2008-06-13 | 2011-03-15 | Asphalt Technology Llc | Methods and systems for manufacturing modified asphalts |
US8377285B2 (en) | 2008-06-13 | 2013-02-19 | Asphalt Technology Llc. | Methods and systems for manufacturing modified asphalts |
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US8901211B2 (en) | 2011-05-27 | 2014-12-02 | Building Materials Investment Corporation | Preparation of industrial asphalt |
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US9187644B2 (en) | 2013-03-15 | 2015-11-17 | Building Materials Investment Corporation | Continuous processing of asphalt formulations |
US9457354B2 (en) | 2013-03-15 | 2016-10-04 | Building Materials Investment Corporation | System and method for continuous processing of recyclable material |
US9556383B2 (en) | 2013-03-15 | 2017-01-31 | Building Materials Investment Corporation | Asphalt oxidation technique |
US9598610B2 (en) | 2014-05-12 | 2017-03-21 | Tamko Building Products, Inc. | Asphalt upgrading without oxidation |
US10703980B2 (en) | 2016-09-27 | 2020-07-07 | Building Materials Investment Corporation | Asphalt blow still with sectionalized columns |
US11053391B2 (en) | 2016-10-06 | 2021-07-06 | Building Materials Investment Corporation | Polymer modified asphalt for industrial applications |
US10633540B2 (en) | 2016-10-13 | 2020-04-28 | Building Materials Investment Corporation | Preparation of blown polymer modified asphalt |
US11326107B2 (en) | 2019-02-26 | 2022-05-10 | Building Materials Investment Corporation | Utilizing packed columns for asphalt air blowing |
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