| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | METHOD OF PREPARING PITCH FOR CARBON FIBER | US13902331 | 2013-05-24 | US20140346085A1 | 2014-11-27 | Young Se OH; Sang Wook Park; Su Jeong Lee |
| Disclosed herein is a method of preparing an isotropic pitch for carbon fiber having a high softening point, and more particularly, a method of preparing an isotropic pitch for carbon fiber by mixing petroleum residues with C9 fraction to form a mixture and then heating the mixture to perform heat polymerization. With the method of preparing an isotropic pitch according to the present invention, a separate catalyst is not required, and the isotropic pitch for carbon fiber having a low softening point may be prepared with a high yield even at a relatively low temperature. | ||||||
| 142 | Viscosity modification of heavy hydrocarbons | US10409697 | 2003-04-07 | US07252755B2 | 2007-08-07 | Melvin D. Kiser; David C. Boyer |
| A low-viscosity, high-softening point heavy hydrocarbon material having a viscosity-reducing amount of at least one biodiesel material dissolved in a heavy hydrocarbon, and a method for producing such low-viscosity, high-softening point heavy hydrocarbon material are disclosed. | ||||||
| 143 | Viscosity modification of heavy hydrocarbons | US10409697 | 2003-04-07 | US20040195150A1 | 2004-10-07 | Melvin D. Kiser; David C. Boyer |
| A low-viscosity, high-softening point heavy hydrocarbon material having a viscosity-reducing amount of at least one biodiesel material dissolved in a heavy hydrocarbon, and a method for producing such low-viscosity, high-softening point heavy hydrocarbon material are disclosed. | ||||||
| 144 | Method for producing superior quality paving asphalt and product prepared therefrom | US870164 | 1992-04-15 | US5284509A | 1994-02-08 | Nabil I. Kamel; Laverne J. Miller |
| A process for preparing a paving asphalt cement comprising two steps. In the first step, a high quality paving asphalt precursor, a low quality paving asphalt precursor, a non-paving asphalt precursor or a mixture thereof are catalytically oxidized to form a paving asphalt cement. In the second step, the catalytically oxidized paving asphalt cement is mixed with one or more of a high quality paving asphalt precursor, a low quality paving asphalt precursor, a non-paving asphalt precursor or a mixture thereof. | ||||||
| 145 | Plasticizer and method of preparing pitch for use in carbon and graphite production | US419277 | 1989-10-10 | US4971679A | 1990-11-20 | Irwin C. Lewis; Terrence A. Pirro |
| A plasticizer for use in the manufacture of pitch which forms a fluid at room temperature consisting essentially of a tar composed of low molecular weight and polymerized aromatic hydrocarbons having a molecular weight distribution characteristic which is bimodel. The plasticizer is formed by reacting a tar or distillate precursor with oxygen under controlled conditions of temperature and time. | ||||||
| 146 | Starting pitch for carbon fibers | US484155 | 1983-04-12 | US4579645A | 1986-04-01 | Seiichi Uemura; Hiroaki Takashima; Osamu Kato; Michiharu Harakawa |
| Provided is a starting pitch for producing carbon fiber by heat-treating the starting pitch to obtain a precursor pitch, melt-spinning the precursor pitch, then rendering the resultant pitch fiber infusible, followed by carbonization, and further followed by graphitization if required, the starting pitch comprising a mixture of (a) 100 parts by weight of a pitch and (b) 5 to 500 parts by weight of a methanol-insoluble and benzene-soluble component contained in a heavy oil obtained in a fluid catalytic cracking of petroleum, the heavy oil having a boiling range not lower than 200.degree. C. | ||||||
| 147 | Production of asphalt cement | US714877 | 1976-08-16 | US4052291A | 1977-10-04 | Wilton F. Espenscheid; Tsoung-Yuan Yan |
| This invention provides a novel asphalt cement which is produced by solubilizing solvent-refined coal in a thermally stable refinery petroleum solvent. | ||||||
| 148 | Production of lubricating oils blending stocks and selected components for asphalt production | US501954 | 1974-08-30 | US3989616A | 1976-11-02 | Charles A. Pagen; Richard J. Petrucco |
| The production of normal and premium lube grade blending stocks of 100, 300 and 700 second neutral material along with high boiling by-product material for the manufacture of asphalts is improved by using a low pressure vacuum tower provided with an overflash separation in the tower bottom from resid. | ||||||
| 149 | Method of preparing electrode pitches | US524147 | 1974-11-15 | US3970542A | 1976-07-20 | Pieter Jan Willem Bongertman |
| A method for the preparation of electrode pitch which includes mixing a highly aromatic residual fraction from petroleum raw materials with a coal tar pitch in a weight ratio of from 1:9 to 9:1 and heating the mixture at a temperature of above 350.degree.C. until a pitch is produced with a softening point above 60.degree.C., an insolubility in anthracene oil and toluene is over 30 percent and a coking value of at least 50 corresponding to binder pitch for the production of carbon, graphite electrodes and refractory material. | ||||||
| 150 | Asphalt composition utilizing asphaltene concentrate | US418663 | 1973-11-23 | US3940281A | 1976-02-24 | Luke W. Corbett |
| An asphaltene concentrate obtained by liquid hydrocarbon fractionation of an asphaltic residuum is blended with a petroleum fraction containing alkylated naphthenes and/or alkylated aromatics such as a vacuum distilled gas oil, a naphthene-aromatic fraction of a gas oil, or a solvent extract of a lubricating oil fraction, thereby producing a high quality paving composition. | ||||||
| 151 | Reconstituted asphalt paving compositions | US3793189D | 1971-12-03 | US3793189A | 1974-02-19 | CORBETT L |
| Asphaltic compositions suitable for use in paving formulations and having desirable viscosity, temperature susceptibility and ductility properties can be made by combining propane precipitated asphalt, asphaltenes and a liquid petroleum derivative such as a heavy distillate or residual oil. These compositions allow maximum utilization of low cost asphaltenes and produce compositions having improved viscosity and temperature susceptibility properties.
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| 152 | Bitumen composition of improved temperature susceptibility | US36930964 | 1964-05-21 | US3387981A | 1968-06-11 | KING LAURENCE F |
| 153 | Asphalt compositions and process for preparing same | US31375863 | 1963-10-04 | US3372045A | 1968-03-05 | BAUM LESTER A H; LEONARD HENSCHEL |
| 154 | Integrated process for the preparation of synthetic bitumens | US43001865 | 1965-02-03 | US3303122A | 1967-02-07 | DOELMAN JAN |
| 155 | Refractory procedures | US30200263 | 1963-08-14 | US3233017A | 1966-02-01 | WEAVER ERNEST P; BEN DAVIES |
| 156 | Asphalt blending | US60671256 | 1956-08-28 | US2963415A | 1960-12-06 | MACDONALD JOHN M |
| 157 | Paving asphalt compositions | US60075056 | 1956-07-30 | US2913389A | 1959-11-17 | HEITHAUS JR JOSEPH J |
| 158 | Process for manufacturing asphalt plastisols | US51839355 | 1955-06-27 | US2862869A | 1958-12-02 | ILIMAN JOHN C |
| 159 | Coal tar soft pitch product | US52011055 | 1955-07-05 | US2861894A | 1958-11-25 | HEINZ FRANCK |
| 160 | Non-brittle, non-lustrous, oxidation resistant asphalt | US64395057 | 1957-03-05 | US2836507A | 1958-05-27 | BARTH EDWIN J |
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