Patents by Inventor Mark K. Reinking
Mark K. Reinking 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: 6727331Abstract: A polyethylene having improved rheological properties is disclosed. The polyethylene has a melt index (MI2) from about 0.01 dg/min to about 50 dg/min and a melt strength (&eegr;) that satisfies MI2×&eegr;≧3.5. A process for making the polyethylene is also disclosed. The process uses an azaborolinyl-containing single-site catalyst in the presence of hydrogen, where the hydrogen consumption is controlled to be less than 30%.Type: GrantFiled: December 28, 2001Date of Patent: April 27, 2004Assignee: Equistar Chemicals, LPInventors: Mark K. Reinking, Harilaos Mavridis
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Patent number: 6713585Abstract: The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1.0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.Type: GrantFiled: July 31, 2000Date of Patent: March 30, 2004Assignee: Equistar Chemicals, LPInventors: Harilaos Mavridis, Mark K. Reinking, Ramesh N. Shroff, Joel A. Mutchler, Charles S. Holland, Keta M. Lindstrom, Kiran M. Gupte, Michael H. Treptau, Francis M. Mirabella
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Publication number: 20040059024Abstract: A method for modifying a high-density polyethylene (HDPE)-clay nanocomposite is disclosed. The method comprises shearing a melt of the nanocomposite at an effective shear rate. The modified nanocomposite shows significantly increased complex melt viscosity, storage modulus, and loss modulus.Type: ApplicationFiled: September 19, 2002Publication date: March 25, 2004Inventors: Mark K. Reinking, Karl P. Rufener
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Patent number: 6656995Abstract: A process for producing olefin polymer composites having improved melt strength and other improved physical characteristics is provided. The process is a solution process wherein an organically modified clay is intimately incorporated, at low levels and without the use of compatibilizing agents, into an olefin polymer base resin.Type: GrantFiled: March 12, 2002Date of Patent: December 2, 2003Assignee: Equistar Chemicals, LPInventors: Douglas D. Klendworth, Mark K. Reinking, Sameer D. Mehta
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Patent number: 6646072Abstract: A clay-filled polyolefin composition and process for making it are disclosed. The process involves treatment of a non-acid-treated smectite clay with a Ziegler-Natta catalyst in the presence of a hydrocarbon and subsequent polymerization of an olefin in the presence of the treated clay and an organoaluminum cocatalyst. Results indicate that filled compositions produced by this process contain exfoliated clay.Type: GrantFiled: January 23, 2002Date of Patent: November 11, 2003Assignee: Equistar Chemicals, LPInventors: Douglas D. Klendworth, Mark K. Reinking
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Patent number: 6642326Abstract: A process for the polymerization of olefins is disclosed. A boraaryl catalyst precursor and an activator are used in the presence of a silane modifier. A low level of silane modifier enhances the activity of the catalyst.Type: GrantFiled: May 3, 2002Date of Patent: November 4, 2003Assignee: Equistar Chemicals, LPInventors: Karen E. Meyer, Mark K. Reinking
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Patent number: 6630544Abstract: A process for polymerizing propylene is disclosed. The process involves charging propylene and about 90 to 99% of an organoaluminum cocatalyst to a reactor and heating this mixture to at least about 50° C. This is followed by addition of a premix of 1 to 10% of the organoaluminum cocatalyst with a magnesium halide-supported Ziegler-Natta catalyst. The temperature of the reaction mixture is maintained to produce a propylene polymer. The process gives improved catalyst activity.Type: GrantFiled: April 18, 2002Date of Patent: October 7, 2003Assignee: Equistar Chemicals, LPInventors: Douglas D. Klendworth, Mark K. Reinking, Edward D. Kist, Karen E. Meyer
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Publication number: 20030176553Abstract: A process for producing olefin polymer composites having improved melt strength and other improved physical characteristics is provided. The process is a solution process wherein an organically modified clay is intimately incorporated, at low levels and without the use of compatibilizing agents, into an olefin polymer base resin.Type: ApplicationFiled: March 12, 2002Publication date: September 18, 2003Inventors: Douglas D. Klendworth, Mark K. Reinking, Sameer D. Mehta
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Publication number: 20030139545Abstract: A clay-filled polyolefin composition and process for making it are disclosed. The process involves treatment of a non-acid-treated smectite clay with a Ziegler-Natta catalyst in the presence of a hydrocarbon and subsequent polymerization of an olefin in the presence of the treated clay and an organoaluminum cocatalyst. Results indicate that filled compositions produced by this process contain exfoliated clay.Type: ApplicationFiled: January 23, 2002Publication date: July 24, 2003Inventors: Douglas D. Klendworth, Mark K. Reinking
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Publication number: 20030125486Abstract: A polyethylene having improved rheological properties is disclosed. The polyethylene has a melt index (MI2) from about 0.01 dg/min to about 50 dg/min and a melt strength (&eegr;) that satisfies MI2×&eegr;≧3.5. A process for making the polyethylene is also disclosed. The process uses an azaborolinyl-containing single-site catalyst in the presence of hydrogen, where the hydrogen consumption is controlled to be less than 30%.Type: ApplicationFiled: December 28, 2001Publication date: July 3, 2003Inventors: Mark K. Reinking, Harilaos Mavridis
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Patent number: 6323148Abstract: An ethylene polymerization catalyst and catalyst system which provides an ethylene copolymer which is characterized by desirable ER shift values. The high level ER shift of these polymers produce films having high impact strength. The catalyst is prepared by treating a support material with an agent selected from the group consisting of a compound having the structural formula BX53, where X5 is fluorine, chlorine, bromine, iodine or OR5, where R5 is C1-C6 alkyl; a compound having the structural formula X62 where X6 is fluorine, bromine or iodine; a compound having the structural formula NR6, where R6 is C1-C6 alkyl or OR7, where R7 is C1-C8 alkyl; and a compound having the structural formula Ti(OR8)4, where R8 is C1-C6 alkyl or phenyl to reduced surface hydroxyl group concentration of the support material. The thus treated support material is thereupon contacted with a dialkylmagnesium compound or complex, an alcohol compound or a silane compound and a transition metal compound, in that order.Type: GrantFiled: November 17, 1999Date of Patent: November 27, 2001Assignee: Equistar Chemicals, LPInventor: Mark K. Reinking
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Publication number: 20010041777Abstract: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.Type: ApplicationFiled: June 12, 2001Publication date: November 15, 2001Applicant: EQUISTAR CHEMICALS, L.P.Inventors: Karen E. Meyer, Mark K. Reinking
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Patent number: 6310150Abstract: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.Type: GrantFiled: June 12, 2001Date of Patent: October 30, 2001Assignee: Equistar Chemicals, L.P.Inventors: Karen E. Meyer, Mark K. Reinking
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Patent number: 6281155Abstract: Supported heterometallocene catalysts wherein the support is a particulate polymeric material are provided. The catalysts have a transition metal complex containing at least one anionic, polymerization stable heteroatomic ligand associated with the transition metal and a boron activator compound deposited on the support. Polymeric supports used for the heterometallocene catalysts of the invention are homopolymers of ethylene and copolymers of ethylene and C3-8 &agr;-olefins.Type: GrantFiled: November 19, 1999Date of Patent: August 28, 2001Assignee: Equistar Chemicals, L.P.Inventors: Karen E. Meyer, Mark K. Reinking
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Patent number: 6171993Abstract: The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1.0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.Type: GrantFiled: December 4, 1998Date of Patent: January 9, 2001Assignee: Equistar Chemicals, LPInventors: Harilaos Mavridis, Mark K. Reinking, Ramesh N. Shroff, Joel A. Mutchler, Charles S. Holland, Keta M. Lindstrom, Kiran M. Gupte, Michael H. Treptau, Francis M. Mirabella
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Patent number: 5346872Abstract: The present invention relates to a novel catalyst component for ethylene polymerization comprising vanadium and titanium. Moreover, when the vanadium/titanium containing catalyst of the present invention is employed with an aluminum-containing cocatalyst enhanced activity as well as melt index is obtained.The present invention is directed to a novel halosilane cocatalyst component which, when used in conjunction with an aluminum containing cocatalyst, is effective in increasing the activity of a silica supported titanium/vanadium containing solid catalyst component in the polymerization of ethylene and/or .alpha.-olefins. In addition to the increased catalytic activity, the polymers produced by the present invention exhibit improved melt index values compared with melt index values typically obtained using prior art catalyst systems. Thus, the catalyst system of the instant invention represent an advancement in the art in view of the combination of increased activity, i.e.Type: GrantFiled: January 29, 1993Date of Patent: September 13, 1994Assignee: Quantum Chemical CorporationInventors: Raghu Menon, Albert P. Masino, Mark K. Reinking
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Patent number: 5344803Abstract: The present invention is directed to a novel halosilane cocatalyst component which, when used in conjunction with an aluminum containing cocatalyst, is effective in increasing the activity of a supported magnesium/titanium containing catalyst in the polymerization of ethylene and .alpha.-olefins. In addition to the increased catalytic activity, the polymers produced by the present invention are characterized as having an unexpected enhancement in the polymer melt index. Thus, the catalyst system of the instant invention represents an advancement in the art in view of the combination of increased activity, i.e., yield of polymer produced, and physical properties of the polyolefin product.In another aspect of the present invention, a process for polymerizing .alpha.-olefins is disclosed.Type: GrantFiled: January 29, 1993Date of Patent: September 6, 1994Assignee: Quantum Chemical CorporationInventors: Raghu Menon, Albert P. Masino, Mark K. Reinking
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Patent number: 5334567Abstract: The present invention is directed to a novel halosilane cocatalyst component which may be used in conjunction with an aluminum-containing cocatalyst to provide enhanced catalytic activity of a vanadium based solid catalyst component in the polymerization of .alpha.-olefins. In addition to the enhancement in the catalytic activity obtaining using the present catalyst system, the resultant polymer produced by the present invention exhibits improved physical properties compared with polymers produced by prior art vanadium based catalyst systems. Thus, the catalyst system of the instant invention represents an advance in the art in view of the combination of increased catalytic activity, i.e. yield of polymer produced, and enhanced physical properties of the polyolefin produced.In accordance with the present invention, a catalyst system is provided which comprises a solid catalyst component and a halosilane cocatalyst component.Type: GrantFiled: January 29, 1993Date of Patent: August 2, 1994Assignee: Quantum Chemical CorporationInventors: Raghu Menon, Albert P. Masino, Mark K. Reinking