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公开(公告)号：AU1129099A
公开(公告)日：1999-03-04
申请号：AU1129099
申请日：1999-01-12
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , BOURRAT XAVIER M , ROMINE H ERNEST
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公开(公告)号：AU678663B2
公开(公告)日：1997-06-05
申请号：AU1224395
申请日：1995-02-15
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , ROMINE H ERNEST , BOURRAT XAVIER M
Abstract: This invention relates to low melting solvated mesophase pitches which are suitable for spinning into carbon fibers. The solvated mesophase pitches have a lower melting point than conventional mesophase pitch but remain substantially anisotropic. The solvated mesophase can be produced as an intermediate during solvent fractionation or supercritical solvent fractionation of mesogen-containing isotropic pitches. The process is enhanced through the ability to recover pseudomesogens with an increased average molecular weight which, in combination with the solvent content, provides a fusible mesophase capable of being spun directly into infusible oriented anisotropic carbon fibers.
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公开(公告)号：BR9107248A
公开(公告)日：1994-02-22
申请号：BR9107248
申请日：1991-12-05
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , ROMINE H ERNEST , BOURRAT XAVIER M
Abstract: This invention relates to low melting solvated mesophase pitches which are suitable for spinning into carbon fibers. The solvated mesophase pitches have a lower melting point than conventional mesophase pitch but remain substantially anisotropic. The solvated mesophase can be produced as an intermediate during solvent fractionation or supercritical solvent fractionation of mesogen-containing isotropic pitches. The process is enhanced through the ability to recover pseudomesogens with an increased average molecular weight which, in combination with the solvent content, provides a fusible mesophase capable of being spun directly into infusible oriented anisotropic carbon fibers.
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公开(公告)号：CA2084976A1
公开(公告)日：1993-06-14
申请号：CA2084976
申请日：1992-12-09
Applicant: CONOCO INC
Inventor： KALBACK WALTER M
Abstract: Case No. 8101 (8167) IMPROVED PROCESS FOR THE PRODUCTION OF MESOPHASE PITCH An improved process for producing an anisotropic pitch product suitable for carbon fiber manufacture. A metal alkylaryl sulfonate is combined with a carbonaceous feedstock substantially free of mesophase pitch, and the combination is heated for a period of time at an elevated temperature while passing a non-oxidative sparging gas such as nitrogen through the feedstock. The process is carried out for a sufficient period of time to produce an anisotropic pitch having from 50 to 100 percent by volume mesophase which is suitable for producing good quality carbon fibers. In one aspect of the invention, an oxidatively reactive gas is used as the sparging gas.
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公开(公告)号：DE68901908T2
公开(公告)日：1992-12-17
申请号：DE68901908
申请日：1989-10-12
Applicant: CONOCO INC
Inventor： KALBACK WALTER M
Abstract: A process for producing a mesophase pitch suitable for carbon fiber manufacture which comprises heating a carbonaceous feedstock substantially free of mesophase pitch in the presence of an oxidatively reactive sparging gas for a period of time, thereafter subjecting the carbonaceous feed to heat soaking in the absence of a sparging gas for an additional period of time and then heating the carbonaceous feed in the presence of a non-oxidative sparging gas for another period of time.
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Patent Agency Ranking
公开(公告)号：ES2142809T3
公开(公告)日：2000-05-01
申请号：ES92117850
申请日：1992-10-19
Applicant: CONOCO INC
Inventor： KALBACK WALTER M
Abstract: An improved process for producing an anisotropic pitch product suitable for carbon fiber manufacture. A metal alkylaryl sulfonate is combined with a carbonaceous feedstock substantially free of mesophase pitch, and the combination is heated for a period of time at an elevated temperature while passing a non-oxidative sparging gas such as nitrogen or an oxidative sparging gas, or a mixture through the feedstock. The process is carried out for a sufficient period of time to produce an anisotropic pitch having from 50 to 100 percent by volume mesophase which is suitable for producing good quality carbon fibers. In one aspect of the invention, an oxidatively reactive gas is used as the sparging gas.
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公开(公告)号：DE69230719D1
公开(公告)日：2000-04-06
申请号：DE69230719
申请日：1992-10-19
Applicant: CONOCO INC
Inventor： KALBACK WALTER M
Abstract: An improved process for producing an anisotropic pitch product suitable for carbon fiber manufacture. A metal alkylaryl sulfonate is combined with a carbonaceous feedstock substantially free of mesophase pitch, and the combination is heated for a period of time at an elevated temperature while passing a non-oxidative sparging gas such as nitrogen or an oxidative sparging gas, or a mixture through the feedstock. The process is carried out for a sufficient period of time to produce an anisotropic pitch having from 50 to 100 percent by volume mesophase which is suitable for producing good quality carbon fibers. In one aspect of the invention, an oxidatively reactive gas is used as the sparging gas.
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公开(公告)号：NO932257L
公开(公告)日：1993-06-18
申请号：NO932257
申请日：1993-06-18
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , ROMINE H ERNEST , BOURRAT XAVIER M
Abstract: This invention relates to low melting solvated mesophase pitches which are suitable for spinning into carbon fibers. The solvated mesophase pitches have a lower melting point than conventional mesophase pitch but remain substantially anisotropic. The solvated mesophase can be produced as an intermediate during solvent fractionation or supercritical solvent fractionation of mesogen-containing isotropic pitches. The process is enhanced through the ability to recover pseudomesogens with an increased average molecular weight which, in combination with the solvent content, provides a fusible mesophase capable of being spun directly into infusible oriented anisotropic carbon fibers.
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公开(公告)号：FI932772A
公开(公告)日：1993-06-16
申请号：FI932772
申请日：1993-06-16
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , ROMINE H ERNEST , BOURRAT XAVIER M
Abstract: This invention relates to low melting solvated mesophase pitches which are suitable for spinning into carbon fibers. The solvated mesophase pitches have a lower melting point than conventional mesophase pitch but remain substantially anisotropic. The solvated mesophase can be produced as an intermediate during solvent fractionation or supercritical solvent fractionation of mesogen-containing isotropic pitches. The process is enhanced through the ability to recover pseudomesogens with an increased average molecular weight which, in combination with the solvent content, provides a fusible mesophase capable of being spun directly into infusible oriented anisotropic carbon fibers.
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公开(公告)号：AU721796B2
公开(公告)日：2000-07-13
申请号：AU1129099
申请日：1999-01-12
Applicant: CONOCO INC
Inventor： KALBACK WALTER M , ROMINE H ERNEST , BOURRAT XAVIER M
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