Patents by Inventor Chun Byung Yang
Chun Byung Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6958378Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) a cyclic nitrogen compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits high activity, and the polymers produced by the method of the present invention by using said catalyst have the advantages of exhibiting high bulk densities and narrow molecular weight distributions.Type: GrantFiled: November 9, 2001Date of Patent: October 25, 2005Assignee: Samsung Atofina Co., Ltd.Inventors: Chun-Byung Yang, Sang-Yull Kim, Yong-Bok Lee, Weon Lee
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Publication number: 20050215422Abstract: The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound solution by dissolving magnesium halide compound in a solvent mixture of cyclic ether and one or more of alcohol; preparing a carrier by adding titanium halide compound to said magnesium compound solution, then elevating the temperature of the solution and aging the solution to precipitate particles, and then adding titanium halide compound thereto for further reaction; preparing a catalyst by reacting said carrier with titanium compound and electron donor; and washing said catalyst with halogenated saturated hydrocarbon.Type: ApplicationFiled: January 28, 2005Publication date: September 29, 2005Inventors: Sang-Yull Kim, Ki-Hwa Lee, Chun-Byung Yang, Ho-Sik Chang
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Patent number: 6916759Abstract: A method of making an olefin polymerization catalyst is disclosed. The method involves contacting a magnesium halide compound with an alcohol, adding a mineral oil to the product, reacting this product with a hydroxylated ester and an alkoxy silane, then adding a titanium compound and a second silicon compound. The titanium compound is preferably an alkoxy halide, and the second silicon compound is preferably a silicon halide.Type: GrantFiled: November 9, 2001Date of Patent: July 12, 2005Assignee: Samsung Atofina Co., Ltd.Inventors: Chun-Byung Yang, Won-Young Kim, Weon Lee
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Patent number: 6914028Abstract: A method of making an olefin polymerization catalyst is disclosed. The method first combines a magnesium halide with an alcohol, then adds a hydroxylated ester and a silicon alkoxide, followed by a titanium compound and another silicon compound to result in a solid composition. This solid composition is then reacted with an aluminum compound and an alkyl halide, followed by reaction with a second titanium compound which may be the same as or different from the first. The second silicon compound is preferably a silicon halide, and the titanium compounds are preferably halides and alkoxides. The aluminum compounds preferably have chloride and alkyl ligands bonded to them.Type: GrantFiled: November 9, 2001Date of Patent: July 5, 2005Assignee: Samsung Atofina Co., Ltd.Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
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Patent number: 6881696Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a boron compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.Type: GrantFiled: June 20, 2002Date of Patent: April 19, 2005Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Ji-Yong Park, Yong-Bok Lee, Weon Lee
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Patent number: 6855663Abstract: The present invention relates to a catalyst for homo-polymerization or co-polymerization of ethylene, or more particularly to a solid complex titanium catalyst for homo-polymerization or co-polymerization of ethylene. The catalyst may be produced by preparing a magnesium solution by contact-rcacting a magnesium halide compound with alcohol. Reacting the solution with an ester compoound and a silicon compound. Then reacting the solution with a mixture of a titanium compound and a silicon compound.Type: GrantFiled: October 23, 1999Date of Patent: February 15, 2005Assignee: Samsung General Chemicals Co., Ltd.Inventor: Chun Byung Yang
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Patent number: 6831033Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process that includes: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a silicon compound having an alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.Type: GrantFiled: June 12, 2002Date of Patent: December 14, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
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Publication number: 20040242409Abstract: The present invention relates to a catalyst for homo-polymerization or co-polymerization of ethylene, or more particularly to a solid complex titanium catalyst for homo-polymerization or co-polymerization of ethylene. The catalyst may be produced by preparing a magnesium solution by contact-reacting a magnesium halide compound with an alcohol. Reacting the solution with an ester compound and a boron compound. Then reacting the solution with a mixture of a titanium compound and a silicon compound.Type: ApplicationFiled: July 7, 2004Publication date: December 2, 2004Applicant: Samsung General Chemicals Co., Ltd.Inventors: Chun Byung Yang, Sang Yull Kim, Ho Yeoun Kim, Eun Ha Kim
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Patent number: 6803427Abstract: The present invention relates to a method for producing a polymer and copolymer of ethylene, and more particularly to a method for producing an ethylene polymer and copolymer by reacting a compound of an organic metal of Group 2, 12, or 13 on the periodic table of elements with an alkoxy silane compound in the presence of a titanium catalyst, the said titanium catalyst being produced by a process of preparing a magnesium compound by contact-reacting a halogenated magnesium compound and alcohol, of reacting the said solution with an ester compound which contains at least one hydroxy group and a silicon compound containing an alkoxy group, and also of reacting it with a solid matter obtained by reaction of a mixture of a titanium compound and a silicon compound with a titanium compound.Type: GrantFiled: May 25, 2001Date of Patent: October 12, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
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Patent number: 6803338Abstract: The present invention relates to a catalyst for homo- or co-polymerization of ethylene, or more particularly to a solid titanium catalyst supported on a magnesium-containing carrier, having high catalytic activity and excellent polymerization properties, which can provide polymers of high bulk density and reduce the amount of polymers dissolvable in a medium during polymerization.Type: GrantFiled: May 30, 2001Date of Patent: October 12, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Weon Lee, Sang-Yull Kim
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Patent number: 6800580Abstract: The present invention relates to a solid complex titanium catalyst for homo-polymerization and co-polymerization of &agr;-olefin, obtained by (i) producing a solution of a magnesium compound by dissolving a magnesium compound and a compound of IIIA Group of the Periodic Table in a solvent mixed with cyclic ether, one or more types of alcohol, a phosphorous compound, and an organosilane, (ii) precipitating the solid particles by reacting said magnesium solution with a compound of a transition metal, a silicon compound, or the mixture thereof, and (iii) reacting said precipitated solid particles with a titanium compound and an electron donor. The catalyst of the present invention is of large particle size, narrow particle distribution, and high catalytic activity, while the polymers obtained with the use of this catalyst are of excellent stereoregularity.Type: GrantFiled: September 3, 2002Date of Patent: October 5, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun Byung Yang, Mie Ock Kim
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Patent number: 6762145Abstract: The present invention relates to a catalyst for polymerization and co-polymerization of ethylene. More particularly, the present invention relates to a solid titanium catalyst containing magnesium, wherein said catalyst is produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with alcohol; reacting said solution with an ester compound having at least one hydroxy group, or a phosphorous compound and a silicon compound having alkoxy groups; producing a solid component with an adjusted particle morphology by adding a mixture of a titanium compound and a silicon compound; reacting the same with an aluminum compound; and then reacting the same with a titanium compound, or a titanium compound and a vanadium compound. As a result, the catalyst of the present invention has high catalytic activity with excellent catalyst morphology.Type: GrantFiled: December 1, 2000Date of Patent: July 13, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Weon Lee, Sang-Yull Kim
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Publication number: 20040116278Abstract: The present invention provides a method for producing a new catalyst of high polymerization activity for homo- or co-polymerization of ethylene, or more particularly a method for producing a titanium solid complex catalyst supported on a carrier containing magnesium, wherein said catalyst is capable of producing polymers of high bulk density and narrow particle size distribution with few fine particles.Type: ApplicationFiled: October 20, 2003Publication date: June 17, 2004Inventors: Chun-Byung Yang, Won-Young Kim, Weon Lee
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Publication number: 20040068064Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) a cyclic nitrogen compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits high activity, and the polymers produced by the method of the present invention by using said catalyst have the advantages of exhibiting high bulk densities and narrow molecular weight distributions.Type: ApplicationFiled: November 10, 2003Publication date: April 8, 2004Inventors: Chun-Byung Yang, Sang-Yull kim, Yong-Bok Lee, Weon Lee
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Publication number: 20040063875Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) an alkoxysilane compound and a haloalkane compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits a high activity and the polymers produced by the method of the present invention using said catalyst have the advantages of exhibiting a high bulk density and a narrow molecular weight distribution.Type: ApplicationFiled: October 27, 2003Publication date: April 1, 2004Inventors: Chun-Byung Yang, Won-Young Kim, Weon Lee
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Publication number: 20040053774Abstract: The present invention provides a method for producing a new catalyst of high catalytic activity and superior catalyst morphology for homo- or co-polymerization of ethylene, or more particularly a method for producing a titanium solid complex catalyst supported on a carrier containing magnesium, wherein said catalyst of high polymerization activity is capable of producing polymers of high bulk density.Type: ApplicationFiled: October 27, 2003Publication date: March 18, 2004Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
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Publication number: 20040033888Abstract: A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with a phosphorus compound and a silicon compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound. The solid titanium complex catalyst for polymerization and copolymerization of ethylene according to present invention exhibits high polymerization activity, and can be advantageously used in the polymerization and copolymerization of ethylene to produce polymers of high bulk density and narrow molecular weight distribution.Type: ApplicationFiled: April 22, 2003Publication date: February 19, 2004Inventors: Chun-Byung Yang, Won-Young Kim, Ji-Yong Park, Weon Lee
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Publication number: 20040030077Abstract: A method for polymerization and copolymerization of ethylene is disclosed. The polymerization is carried out in the presence of a preactivated titanium solid complex catalyst supported on a carrier containing magnesium. The resulting polymers have the advantage of high bulk density and broad molecular weight distribution.Type: ApplicationFiled: December 19, 2002Publication date: February 12, 2004Inventors: Chun-Byung Yang, Yong-Bok Lee, Sang-Yull Kim, Won-Young Kim
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Publication number: 20040023792Abstract: A solid titanium complex catalyst for polymerization and copolymeization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ester compound having at least one hydroxyl group and a boron compound having at least one alkoxy group to produce a magnesium composition; and (3) producing a solid titanium catalyst through recrystallization by reacting the magnesium composition solution with a mixture of a titanium compound and a haloalkane compound; and optionally reacting the solid titanium catalyst with an additional titanium compound.Type: ApplicationFiled: April 15, 2003Publication date: February 5, 2004Inventors: Chun-Byung Yang, Ji-Yong Park, Yong-Bok Lee, Weon Lee
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Patent number: 6559250Abstract: The present invention relates to a method of homo- or co-polymerization of &agr;-olefin by means of using a catalyst system which comprises the following components: (1) a solid complex titanium catalyst produced by means of a production method comprising the following steps: (a) preparing a magnesium compound solution by dissolving a magnesium halide compound and a compound of Group IIIA of the Periodical Table in a solvent of mixture of cyclic ester, one or more types of alcohol, a phosphorus compound, and an organic silane; (b) precipitating the solid particles by reacting said magnesium compound solution with a transitional metal compound, a silicon compound, a tin compound, or the mixture thereof; and (c) reacting said precipitated solid particles with a titanium compound and electron donors; (2) an organometallic compound of metal of Group IIIA of the Periodical Table; and (3) external electron donors comprising three or more types of organo-silicon compounds, wherein the melt flow rates of the homopolyType: GrantFiled: May 30, 2001Date of Patent: May 6, 2003Assignee: Samsung General Chemicals Co., Ltd.Inventors: Ki-Su Ro, Il-Seop Kim, Chun-Byung Yang, Moon-Young Shin