Patents by Inventor David J. Lohse
David J. Lohse 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: 7622523Abstract: The present invention relates to radiation resistant plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: February 9, 2005Date of Patent: November 24, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Wen Li, Chon Y. Lin, Bryan R. Chapman, Bruce R. Lundmark, David J. Lohse
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Patent number: 7619027Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: October 24, 2006Date of Patent: November 17, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Bruce R. Lundmark, Bryan R. Chapman, Sandra Denise Schregenberger, David J. Lohse
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Patent number: 7619026Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: August 12, 2003Date of Patent: November 17, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Publication number: 20090171001Abstract: The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: February 25, 2009Publication date: July 2, 2009Inventors: Chon-Yie Lin, Wen Li, Bryan R. Chapman, Michael B. Kelly, Bruce R. Lundmark, David J. Lohse, Henry Wu-Hsiang Yang, Sandra Denise Schregenbeger
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Publication number: 20090156729Abstract: An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 ?-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250 dg/min. at 230 NC. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.Type: ApplicationFiled: February 24, 2009Publication date: June 18, 2009Inventors: Anthony G. Karandinos, Keith A. Nelson, Jean M. Tancrede, Kenneth Lewtas, Sudhin Datta, Charles Cozewith, Bruce A. Harrington, David J. Lohse, Olivier J.F. Georjon
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Patent number: 7531594Abstract: The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: February 19, 2004Date of Patent: May 12, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chon-Yie Lin, Wen Li, Bryan R. Chapman, Michael B. Kelly, Bruce R. Lundmark, David J. Lohse, Henry Wu-Hsiang Yang, Sandra Denise Schregenberger
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Patent number: 7521507Abstract: An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 ?-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250 dg/min. at 230° C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.Type: GrantFiled: November 24, 2003Date of Patent: April 21, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Kenneth Lewtas, Sudhin Datta, Charles Cozewith, Bruce A. Harrington, David J. Lohse, Olivier J. F. Georjon, Anthony G. Karandinos, Keith A. Nelson, Jean M. Tancrede
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Patent number: 7427506Abstract: A high throughput method to determine an amount of a comonomer in a copolymer sample of a copolymer system comprises the steps of providing a plurality of copolymer samples; creating an array of the copolymer samples; measuring a sample complex modulus of each of the copolymer samples at a comparison phase angle; and determining the amount of a comonomer in the copolymer sample by comparing the sample complex modulus to a calibration curve, wherein the calibration curve relates a concentration of the comonomer in the copolymer sample to a complex moduli of the copolymer sample determined at the comparison phase angle. A method of determining the amount of a comonomer in both a single copolymer sample, and in a high throughput scheme using the crossover modulus is also disclosed.Type: GrantFiled: April 13, 2004Date of Patent: September 23, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Cesar A. Garcia-Franco, David J. Lohse, Bruce A. Harrington, Robert Jay Wittenbrink
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Patent number: 7307126Abstract: Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.4 to 3.0 g/10 min and a density of from 0.910 to 0.930 g/cm3; and a second polyethylene having a melt index of 10 to 30 g/10 min and a density of 0.945 to 0.975 g/cm3. The composition has a density of from 0.930 to 0.955 g/cm3 and a melt index of 1.5 to 12 g/10 min, and the first and second polyethylenes differ in density by from 0.030 to 0.048 g/cm3. These compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance and Izod Impact Strength.Type: GrantFiled: March 14, 2005Date of Patent: December 11, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Arnold Lustiger, David J. Lohse, Blair A. Graham
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Publication number: 20070282073Abstract: This invention relates to the preparation of thermoplastic vulcanizates (TPVs) with unique morphological features, more specifically, this invention relates to a method for preparing TPV compositions wherein the mixing of plastomers and elastomers are carried out in solvent with curatives to induce cross-linking.Type: ApplicationFiled: April 18, 2007Publication date: December 6, 2007Inventors: Weiqing Weng, Sunny Jacob, Peijun Jiang, Armenag H. Dekmezian, Aspy K. Mehta, James R. Ayers, David J. Lohse, Peter W. Manders, Palanisamy Arjunan
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Patent number: 7067603Abstract: The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a rheological behavior that makes them suitable for adhesive use, both without and with minimzed amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-polymer may be composed of A) from 60 to 94% of units derived from one alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); the diad distribution of component A in the polymer as determined by 13C NMR as described herein showing a ratio of experimentally determined diad distribution over the calculated Bernoullian diad distribution of less than 1.Type: GrantFiled: May 7, 2003Date of Patent: June 27, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Anthony G. Karandinos, David J. Lohse, Olivier J. F. Georjon, Kenneth Lewtas, Keith A. Nelson, Jean M. Tancrede, Bruce Allan Harrington
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Patent number: 7022770Abstract: Polyethylene blend compositions suitable for injection molding, injection molded articles, and processes for injection molding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.1 to 3.0 g/10 min and a density of from 0.905 to 0.938 g/cm3; and a second polyethylene having a melt index of 10 to 500 g/10 min and a density of 0.945 to 0.975 g/cm3. The composition has a density of from 0.920 to 0.973 g/cm3 and a melt index of 2 to 200 g/10 min, and the density of the second polyethylene is from 0.037 to 0.062 g/cm3 greater than the density of the first polyethylene. These compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance, relative to conventional compositions of similar melt index and density.Type: GrantFiled: September 18, 2003Date of Patent: April 4, 2006Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Arnold Lustiger, David J. Lohse, Blair A. Graham
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Patent number: 6977277Abstract: The invention is directed towards a PVC resin composition comprising polyvinyl chloride and a liquid plasticizer selected from the group consisting of: (i) a non-linear, paraffin-soluble olefin-CO copolymer; ii) a non-linear olefin-CO copolymer derived from non-pure feeds; iii) an olefin-CO—X terpolymer derived from non-pure feeds; and iv) a non-linear olefin-CO—X terpolymer. A method of preparing the resins is also described.Type: GrantFiled: April 22, 2003Date of Patent: December 20, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu O. Patil, Donald N. Schulz, Manika Varma-Nair, David J. Lohse, Christine A. Costello, Richard H. Schlosberg, Michael G. Matturro
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Patent number: 6969741Abstract: Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.4 to 3.0 g/10 min and a density of from 0.910 to 0.930 g/cm3; and a second polyethylene having a melt index of 10 to 30 g/10 min and a density of 0.945 to 0.975 g/cm3. The composition has a density of from 0.930 to 0.955 g/cm3 and a melt index of 1.5 to 12 g/10 min, and the first and second polyethylenes differ in density by from 0.030 to 0.048 g/cm3. These compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance and Izod Impact Strength.Type: GrantFiled: September 18, 2003Date of Patent: November 29, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Arnold Lustiger, David J. Lohse, Blair A. Graham
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Publication number: 20040260001Abstract: The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: February 19, 2004Publication date: December 23, 2004Inventors: Chon-Yie Lin, Wen Li, Bryan R. Chapman, Michael B. Kelly, Bruce R. Lundmark, David J. Lohse, Henry Wu-Hsiang Yang, Sandra Denise Schregenberger
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Patent number: 6750278Abstract: The invention is directed towards a PVC resin composition comprising polyvinyl chloride and a plasticizer selected from the group consisting of: i) a non-linear, paraffin-soluble olefin-CO copolymer; ii) an olefin-CO-X terpolymer derived from non-pure feeds; iii) a non-linear olefin-CO copolymer derived from non-pure feeds; and iv) a non-linear CO-X copolymer; wherein X is selected from the group consisting of alpha-olefin, vinyl acetate, neo vinyl ester and mixtures thereof. The invention also provides a method for a preparing the PVC resin composition as well as a product formed using the PVC resin.Type: GrantFiled: September 10, 2002Date of Patent: June 15, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu O. Patil, Donald N. Schulz, Manika Varma-Nair, David J. Lohse, Christine A. Costello, Richard H. Schlosberg, Michael G. Matturro
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Publication number: 20040110886Abstract: An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 &agr;-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250 dg/min. at 230NC. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.Type: ApplicationFiled: November 24, 2003Publication date: June 10, 2004Inventors: Anthony G. Karandinos, Keith A. Nelson, Jean M. Tancrede, Bruce A. Harrington, David J. Lohse, Olivier J. F. Georjon, Kenneth Lewtas, Sudhin Datta, Charles Cozewith
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Patent number: 6747114Abstract: An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 &agr;-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250° dg/min. at 230° C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.Type: GrantFiled: December 21, 2000Date of Patent: June 8, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Anthony G. Karandinos, Keith A. Nelson, Jean M. Tancrede, Bruce A. Harrington, David J. Lohse, Olivier J. F. Georjon, Kenneth Lewtas, Sudhin Datta, Charles Cozewith
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Publication number: 20040106723Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: August 12, 2003Publication date: June 3, 2004Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Publication number: 20040062942Abstract: Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.4 to 3.0 g/10 min and a density of from 0.910 to 0.930 g/cm3; and a second polyethylene having a melt index of 10 to 30 g/10 min and a density of 0.945 to 0.975 g/cm3. The composition has a density of from 0.930 to 0.955 g/cm3 and a melt index of 1.5 to 12 g/10 min, and the first and second polyethylenes differ in density by from 0.030 to 0.048 g/cm3. These compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance and Izod Impact Strength.Type: ApplicationFiled: September 18, 2003Publication date: April 1, 2004Inventors: Arnold Lustiger, David J. Lohse, Blair A. Graham