Patents by Inventor Armenag Hagop Dekmezian
Armenag Hagop Dekmezian 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: 8957159Abstract: This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g?) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%.Type: GrantFiled: September 10, 2013Date of Patent: February 17, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Publication number: 20140066567Abstract: This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g?) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%.Type: ApplicationFiled: September 10, 2013Publication date: March 6, 2014Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 8563647Abstract: The present invention describes polymer comprising one or more C3 to C40 olefins and having a Mw of 100,000 or less and a Dot T-Peel of 1 Newton or more. The polymer may have a branching index (g?) of 0.95 or less measured at the Mz of the polymer, and a heat of fusion of 1 to 70 J/g. Also described are polymers of homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: an isotactic run length of 1 to 30 as determined by Carbon 13 NMR and a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR. Also described are methods of making these and other polymers.Type: GrantFiled: October 25, 2011Date of Patent: October 22, 2013Assignee: Exxonmobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Publication number: 20120095157Abstract: The present invention describes polymer comprising one or more C3 to C40 olefins and having a Mw of 100,000 or less and a Dot T-Peel of 1 Newton or more. The polymer may have a branching index (g?) of 0.95 or less measured at the Mz of the polymer, and a heat of fusion of 1 to 70 J/g. Also described are polymers of homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: an isotactic run length of 1 to 30 as determined by Carbon 13 NMR and a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR. Also described are methods of making these and other polymers.Type: ApplicationFiled: October 25, 2011Publication date: April 19, 2012Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 8088867Abstract: The invention relates to a polymer blend prepared by the process of combining under polymerization conditions: (A) a first catalyst capable of producing a first crystalline polymer having an Mw of 100,000 or less, (B) a second catalyst capable of preparing a second amorphous polymer having an Mw of 100,000 or less and differing in chemical or physical properties from the first polymer under equivalent polymerization conditions, (C) a cocatalyst, activator, scavenger, or combination thereof, and (D) one or more olefins; wherein the polymer blend is formed in-situ, comprises crystalline polymer segments and amorphous polymer segments, and has an Mw of 100,000 or less.Type: GrantFiled: August 2, 2007Date of Patent: January 3, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 8071687Abstract: This invention relates to an adhesive comprising a polymer composition comprising at least 50 mol % of one or more C3 to C40 olefins where the polymer composition has (a) a Dot T-Peel of 1 Newton or more on Kraft paper; (b) an Mw of at least 7000 to 80,000; (c) a branching index (g?) of from 0.4 to 0.90 measured at the Mz of the polymer composition; (d) a heat of fusion of 1 to 70 J/g; and (e) a heptane insoluble fraction of 70 weight % or less, based upon the weight of the polymer composition, where the heptane insoluble fraction has branching index g? of 0.9 or less as measured at the Mz of the polymer composition.Type: GrantFiled: August 2, 2007Date of Patent: December 6, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 7524910Abstract: Embodiments of the present invention relate to article comprising a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g?) of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 40% or more; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, in a reaction zone.Type: GrantFiled: October 15, 2003Date of Patent: April 28, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Keith Allen Nelson, Christopher Lewis Curry, Armenag Hagop Dekmezian, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, Jo Ann Marie Canich, Nicolas Kappes, Michel Louis Faissat, Lutz Erich Jacob
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Publication number: 20090069475Abstract: This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has: a) a Dot T-Peel of 1 Newton or more; and b) a branching index (g?) of 0.95 or less measured at the Mz of the polymer; c) an Mw of 100,000 or less. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g?) of 0.95 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 100,000; and d) a heat of fusion of 1 to 70 J/g. This invention also relates a polymer comprising one or more C3 to C40 olefins where the polymer has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) a branching index (g?) of 0.98 or less measured at the Mz of the polymer; c) a Mw of 10,000 to 60,000; d) a heat of fusion of 1 to 50 J/g.Type: ApplicationFiled: August 2, 2007Publication date: March 12, 2009Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 7294681Abstract: This invention relates to a polymer of one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, and polymerization processes for producing the same.Type: GrantFiled: October 15, 2003Date of Patent: November 13, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
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Patent number: 7132486Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: GrantFiled: September 28, 2004Date of Patent: November 7, 2006Assignee: Univation Technologies, LLCInventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Patent number: 6884747Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: GrantFiled: September 27, 2001Date of Patent: April 26, 2005Assignee: Univation Technologies, LLCInventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Publication number: 20040220360Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS). This combination of melt properties is achieved by a substantially non blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: ApplicationFiled: August 29, 2003Publication date: November 4, 2004Inventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Publication number: 20040138392Abstract: This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has:Type: ApplicationFiled: October 15, 2003Publication date: July 15, 2004Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia Franco, David Raymond Johnsrud
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Publication number: 20040127614Abstract: Embodiments of the present invention relate to article comprising a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g′) of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 40% or more; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, in a reaction zone.Type: ApplicationFiled: October 15, 2003Publication date: July 1, 2004Inventors: Peijun Jiang, Keith Allen Nelson, Christopher Lewis Curry, Armenag Hagop Dekmezian, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, Jo Ann Marie Canich, Nicolas Kappes, Michel Louis Faissat, Lutz Erich Jacob
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Patent number: 6734265Abstract: Linear low density polyethylenes (LLDPES) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS). This combination of melt properties is achieved by a substantially non blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: GrantFiled: October 6, 2000Date of Patent: May 11, 2004Assignee: Univation Technologies, LLC.Inventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Publication number: 20020143123Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: ApplicationFiled: September 27, 2001Publication date: October 3, 2002Inventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Patent number: 6342574Abstract: A polyolefin composition is provided which consists essentially of isotactic polypropylene and, optionally, one or more comonomers, wherein the total comonomer content of the polyolefin composition is from 0 to 20 mole percent, and further, wherein the weight average branching index g′ for the lower molecular weight region of the polyolefin composition is less than 0.93. Additionally, a process is provided for producing a polyolefin composition comprising: a) contacting, in solution, at a temperature from about 90° C. to about 120° C.Type: GrantFiled: March 26, 2001Date of Patent: January 29, 2002Assignee: ExxonMobil Chemical Patents INCInventors: Weiqing Weng, Armenag Hagop Dekmezian, Eric John Markel, David L. Peters
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Publication number: 20010016639Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations.Type: ApplicationFiled: December 11, 2000Publication date: August 23, 2001Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy Keki Mehta, Armenag Hagop Dekmezian, Christopher Ross Davey, Charlie Y. Lin, Michael Chia-Chao Chen, Galen Charles Richeson
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Publication number: 20010007896Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;)-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations.Type: ApplicationFiled: December 11, 2000Publication date: July 12, 2001Inventors: Pawan Kumar Agarwal, Weiqing Weng, Aspy Keki Mehta, Armenag Hagop Dekmezian, Christopher Ross Davey, Charlie Y. Lin, Michael Chia-Chao Chen, Galen Charles Richeson, Rajan K. Chudgar, Main Chang
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Patent number: 6114477Abstract: The present invention relates to a gas phase process for the polymerization of monomer(s) utilizing a metallocene catalyst system to produce easy processing polyolefin polymers.Type: GrantFiled: February 9, 1996Date of Patent: September 5, 2000Assignee: Exxon Chemical Patents Inc.Inventors: Natalie Ann Merrill, Jo Ann Marie Canich, Armenag Hagop Dekmezian, Richard Byron Pannell, Charles James Ruff