Patents by Inventor Margarito Lopez
Margarito Lopez 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).
-
Patent number: 11193012Abstract: A thermoplastic polyolefin composition and methods for its use is disclosed. The composition can include a thermoplastic polyolefin and a clarifying agent blend comprising a trisamide clarifier and sorbitol clarifier at a ratio of trisamide clarifier to sorbitol clarifier of 1:2 to 1:40 w/w.Type: GrantFiled: September 11, 2019Date of Patent: December 7, 2021Assignee: FINA TECHNOLOGY, INC.Inventors: Margarito Lopez, Michael Allen McLeod, Jon Tippet, Douglas Burmaster, John Ashbaugh
-
Publication number: 20200079943Abstract: A thermoplastic polyolefin composition and methods for its use is disclosed. The composition can include a thermoplastic polyolefin and a clarifying agent blend comprising a trisamide clarifier and sorbitol clarifier at a ratio of trisamide clarifier to sorbitol clarifier of 1:2 to 1:40 w/w.Type: ApplicationFiled: September 11, 2019Publication date: March 12, 2020Inventors: Margarito Lopez, Michael Allen McLeod, Jon Tippet, Douglas Burmaster, John Ashbaugh
-
Patent number: 9365710Abstract: A controlled rheology polypropylene that is made from Ziegler-Natta produced random copolymer and an additive formulation, extruded in the presence of a peroxide, exhibits low fluid retention and can be used to make medical/laboratory grade equipment, such a pipette tips.Type: GrantFiled: November 14, 2012Date of Patent: June 14, 2016Assignee: Fina Technology, Inc.Inventors: Margarito Lopez, Michael McLeod
-
Publication number: 20130165563Abstract: A controlled rheology polypropylene that is made from Ziegler-Natta produced random copolymer and an additive formulation, extruded in the presence of a peroxide, exhibits low fluid retention and can be used to make medical/laboratory grade equipment, such a pipette tips.Type: ApplicationFiled: November 14, 2012Publication date: June 27, 2013Inventors: Margarito Lopez, Michael McLeod
-
Patent number: 8246918Abstract: Polymer compositions and articles formed therefrom are described herein. The compositions include a random copolymer and a radiation additive, wherein the random copolymer includes propylene and less than 2 wt. % ethylene and exhibits a melt flow rate of from about 30 to 100 dg/min., the polymer composition exhibits a flexural modulus of from about 160 kpsi to about 200 kpsi and the polymer composition is adapted to produce a polymer article exhibiting low plate out, a haze at 20 mils of no greater than 15%, radiation stability and autoclavability.Type: GrantFiled: October 19, 2009Date of Patent: August 21, 2012Assignee: Fina Technology, Inc.Inventors: Margarito Lopez, Michael Musgrave
-
Publication number: 20120116033Abstract: Catalyst compositions having Cs symmetry and processes utilizing Cs symmetric catalyst components for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Monomers, which are polymerized or copolymerized include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The catalyst component is characterized by the formula: wherein M is a Group 4-11 transition metal, n is an integer of from 1-3, Q is halogen or a C1-C2 alkyl group, PY is a pyridinyl group, R? and R? are each C1-C20 hydrocarbyl group, A1 is a mononuclear aromatic group, and A2 is a polynuclear aromatic group, such as a terphenyl group. The catalyst component is used with an activating co-catalyst component such as an alumoxane. Also disclosed is a process for the preparation of a pyridinyl-linked bis-amino ligand suitable for use in forming the catalyst component.Type: ApplicationFiled: January 5, 2012Publication date: May 10, 2012Applicant: FINA TECHNOLOGY, INC.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Publication number: 20120095174Abstract: Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlFpX3-pBq to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH?, B is H2O, p is selected from 1 to 3 and q is selected from 0 to 6. The method further includes contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: ApplicationFiled: December 20, 2011Publication date: April 19, 2012Applicant: FINA TECHNOLOGY, INC.Inventors: Vladimir Marin, Margarito Lopez, Abbas Razavi, Tim Coffy, Michel Daumerie
-
Patent number: 8110518Abstract: Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlFpX3-pBq to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH?, B is H2O, p is selected from 1 to 3 and q is selected from 0 to 6. The method further includes contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: GrantFiled: October 26, 2007Date of Patent: February 7, 2012Assignee: Fina Technology, Inc.Inventors: Vladimir Marin, Margarito Lopez, Abbas Razavi, Tim Coffy, Michel Daumerie
-
Publication number: 20100098586Abstract: Polymer compositions and articles formed therefrom are described herein. The compositions include a random copolymer and a radiation additive, wherein the random copolymer includes propylene and less than 2 wt. % ethylene and exhibits a melt flow rate of from about 300 to 100 dg/min., the polymer composition exhibits a flexural modulus of from about 160 kpsi to about 200 kpsi and the polymer composition is adapted to produce a polymer article exhibiting low plate out, a haze at 20 mils of no greater than 15%, radiation stability and autoclavability.Type: ApplicationFiled: October 19, 2009Publication date: April 22, 2010Applicant: Fina Technology, Inc.Inventors: Margarito Lopez, Michael Musgrave
-
Patent number: 7649064Abstract: In accordance with the present invention, there is provided a transition metal olefin polymerization catalyst component characterized by the formula: where, M is a Group IV or a Group IV transition metal, B is a bridge group containing at least two carbon atoms, A? and A? are organogroups, each containing a heteroatom selected from the group consisting of oxygen, sulfur, nitrogen and phosphorus, X is selected from the group consisting of chlorine, bromine, iodine, a C1-C20 alkyl group, a C6-C30 aromatic group and mixtures thereof, and n is 1, 2 or 3. The invention also encompasses a method for the polymerization of an ethylenically unsaturated monomer which comprises contacting a transition metal catalyst component as characterized by formula (1) above and an activating co-catalyst component in a polymerization reaction zone with an ethylenically unsaturated monomer under polymerization conditions to produce a polymer product.Type: GrantFiled: August 28, 2008Date of Patent: January 19, 2010Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
-
Publication number: 20090156761Abstract: Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlFpX3-pBq to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH?, B is H2O, p is selected from 1 to 3 and q is selected from 0 to 6. The method further includes contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: ApplicationFiled: October 26, 2007Publication date: June 18, 2009Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
-
Publication number: 20090005526Abstract: In accordance with the present invention, there is provided a transition metal olefin polymerization catalyst component characterized by the formula: where, M is a Group IV or a Group IV transition metal, B is a bridge group containing at least two carbon atoms, A? and A? are organogroups, each containing a heteroatom selected from the group consisting of oxygen, sulfur, nitrogen and phosphorus, X is selected from the group consisting of chlorine, bromine, iodine, a C1-C20 alkyl group, a C6-C30 aromatic group and mixtures thereof, and n is 1, 2 or 3. The invention also encompasses a method for the polymerization of an ethylenically unsaturated monomer which comprises contacting a transition metal catalyst component as characterized by formula (1) above and an activating co-catalyst component in a polymerization reaction zone with an ethylenically unsaturated monomer under polymerization conditions to produce a polymer product.Type: ApplicationFiled: August 28, 2008Publication date: January 1, 2009Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Patent number: 7439205Abstract: In accordance with the present invention, there is provided a transition metal olefin polymerization catalyst component characterized by the formula: where, M is a Group IV or a Group IV transition metal, B is a bridge group containing at least two carbon atoms, A? and A? are organogroups, each containing a heteroatom selected from the group consisting of oxygen, sulfur, nitrogen and phosphorus, X is selected from the group consisting of chlorine, bromine, iodine, a C1-C20 alkyl group, a C6-C30 aromatic group and mixtures thereof, and n is 1, 2 or 3. The invention also encompasses a method for the polymerization of an ethylenically unsaturated monomer which comprises contacting a transition metal catalyst component as characterized by formula (1) above and an activating co-catalyst component in a polymerization reaction zone with an ethylenically unsaturated monomer under polymerization conditions to produce a polymer product.Type: GrantFiled: November 21, 2005Date of Patent: October 21, 2008Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Patent number: 7368411Abstract: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, specifically alpha olefins, particularly the polymerization of propylene to produce syndiotactic or isotactic polypropylene. The supported metallocene catalyst comprises a stereospecific metallocene catalyst and a co-catalyst component comprising at least one of an alkyl alumoxane and an alkylaluminum compound. Both the metallocene catalyst and the co-catalyst are supported on a particulate silica support comprising silica particles having an average particle size of 5-40 microns and an average effective pore size of 50-200 angstroms. The silica support further has a differential pore size distribution of a pore volume of at least 0.01 cm3/g. within a range having a maximum pore width of no more than 300 angstroms.Type: GrantFiled: January 31, 2007Date of Patent: May 6, 2008Assignee: Fina Technology, IncInventors: Margarito Lopez, Edwar Shamshoum, Donald Gordon Campbell, Jr.
-
Patent number: 7301040Abstract: Bidentate catalyst systems and the methods or forming such are described herein. The catalyst systems generally are compounds having the general formula: where R, R1, R2 and R3 are optional and independently selected from hydrogen, C1 to C20 alkyl groups or C6 to C20 aryl groups, A? and A? are independently selected from coordination groups, M is a Group 4 or 5 transition metal, X is selected from halogens, alkyl groups, aromatic groups or combinations thereof and n is less than 4.Type: GrantFiled: August 18, 2005Date of Patent: November 27, 2007Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
-
Publication number: 20070255022Abstract: Supported catalyst systems and methods of forming the same are generally described herein. The methods generally include providing an inorganic support composition, wherein the inorganic support composition includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof and contacting the inorganic support composition with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Publication number: 20070255026Abstract: Catalyst systems, polymers and methods of forming the same are described herein. The catalyst systems generally include an inorganic support material having a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof, wherein the inorganic support material has an acid strength (pKa) of less than about 4.8 and a transition metal compound, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to a transition metal valency.Type: ApplicationFiled: March 7, 2007Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
-
Publication number: 20070254800Abstract: Supported catalyst systems and methods of forming the same are generally described herein. The methods generally include providing a support material including silica-alumina prepared by cogel methods, contacting the support material with a fluorinating agent to form a fluorinated support and contacting the fluorinated support with a transition metal compound to form a supported catalyst system.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir Marin, Margarito Lopez
-
Publication number: 20070255021Abstract: Supported catalyst systems, methods of forming the supported catalyst systems and polymerization processes including the supported catalyst systems are described herein. The methods generally include providing an inorganic support composition, wherein the inorganic support composition comprises aluminum, fluorine and silica and contacting the inorganic support composition with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: ApplicationFiled: April 26, 2007Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Vladimir Marin, Margarito Lopez, Abbas Razavi, Tim Coffy
-
Publication number: 20070255023Abstract: Copolymers and methods of forming copolymers are described herein. The methods generally include providing a transition metal compound represented by the formula [L]mM[A]n, wherein L is a bulky ligand including bis-indenyl, A is a leaving group, M is a transition metal and m and n are such that the total ligand valency corresponds to the transition metal valency and providing a support material having a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof. The methods further include contacting the transition metal compound with the support material to form an active supported catalyst system, wherein the contact of the transition metal compound with the support material occurs in proximity to contact with monomer and contacting the active supported catalyst system with a plurality of monomers to form an olefin copolymer.Type: ApplicationFiled: September 29, 2006Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez