Patents by Inventor Abdelhadi Sahnoune
Abdelhadi Sahnoune 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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Publication number: 20230167354Abstract: Proppant particulates like sand are commonly used in hydraulic fracturing operations to maintain one or more fractures in an opened state following the release of hydraulic pressure. Fracturing fluids and methods of hydraulic fracturing may also use proppant particulates composed of high-flow polyolefin coated mineral particles (referred to as high-flow polyolefin coated mineral proppant particulates). In some instances, the high-flow polyolefin-coated mineral proppant particulates have a particle density of equal to or less than about 1.35 grams per cubic centimeter, and further may be prepared using a one-pot hot melt process.Type: ApplicationFiled: November 10, 2022Publication date: June 1, 2023Inventors: Dragan STOJKOVIC, Abdelhadi SAHNOUNE, Haiqing PENG, Lee J. HALL, Kendal K. DECKER
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Patent number: 10562219Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.Type: GrantFiled: August 24, 2018Date of Patent: February 18, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Periagaram S. Ravishankar, Jianya Cheng, Adriana S. Silva, Wen Li, Abdelhadi Sahnoune, Arturo Leyva, Alexander I. Norman
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Patent number: 10124528Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.Type: GrantFiled: May 14, 2015Date of Patent: November 13, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Periagaram S. Ravishankar, Jianya Cheng, Adriana S. Silva, Wen Li, Abdelhadi Sahnoune, Arturo Leyva, Alexander I. Norman
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Patent number: 9938400Abstract: Thermoplastic polyolefins (TPOs) and/or thermoplastic vulcanizates (TPVs) are blended with low molecular weight propylene-dominated copolymers to provide polymeric compositions with an improved balance between processability and toughness. The compositions have improved processability by facilitating the ease with which a TPO or TPV, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into articles.Type: GrantFiled: April 23, 2008Date of Patent: April 10, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Abdelhadi Sahnoune, Sudhin Datta, Mun Fu Tse, Charles L. Sims, James N. Coffey, Peijun Jiang
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Publication number: 20170028605Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.Type: ApplicationFiled: May 14, 2015Publication date: February 2, 2017Inventors: Periagaram S. Ravishankar, Jianya Cheng, Adriana S. Silva, Wen Li, Abdelhadi Sahnoune, Arturo Leyva, Alexander I. Norman
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Patent number: 8492447Abstract: A closed cell foam material contains a propylene based polymer comprising from about 5% to about 32% by weight ?-olefin units. The propylene based polymer has a heat of fusion, as determined by DSC, of less than 80 J/g. The material also contains 0.5 to 5 phr peroxide, 1.0 to 5.0 phr blowing agent, and 0.1 to 10 phr co-agent. The cells of closed cell foam material have a diameter in the range of 0.1 to 1.5 mm.Type: GrantFiled: April 1, 2008Date of Patent: July 23, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sunny Jacob, Abdelhadi Sahnoune, Jun Tong, Randal Howard Kerstetter
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Patent number: 8263707Abstract: The present invention also discloses a heterogeneous blend composition comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0.1% to about 25% from isotactic polypropylene sequences, a melting point of from 45° C. to 105° C., and wherein the Melt Flow Rate (MFR@230° C.) of the first polymer component is between 300 g/10 min to 5000 g/10 min b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0.0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110° C.Type: GrantFiled: April 3, 2008Date of Patent: September 11, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Charles L. Sims, Peijun Jiang, Abdelhadi Sahnoune, Derek W. Thurman
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Patent number: 8227547Abstract: This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec?1 and temperature of 180° C.Type: GrantFiled: January 7, 2011Date of Patent: July 24, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Abdelhadi Sahnoune, Armenag Dekmezian
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Patent number: 8202467Abstract: A method for extruding transparent and/or translucent article is provided. In one embodiment, the method comprises providing a propylene-based polymer comprising propylene derived units and one or more dienes, the propylene-based polymer having a triad tacticity of from 50% to 99% and a heat of fusion of less than 80 J/g, extruding the propylene-based polymer in the absence of processing oil into an article; and then crosslinking the extruded article.Type: GrantFiled: July 24, 2007Date of Patent: June 19, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Abdelhadi Sahnoune, Sunny Jacob
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Blends of low crystallinity, low molecular weight propylene copolymers and styrenic block copolymers
Patent number: 8052822Abstract: Styrenic block copolymers are blended with propylene copolymers to provide polymeric compositions with an improved balance between processability and elasticity. The compositions have improved processability by facilitating the ease with which a rubbery material, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into films or other articles, assisted by a desired level of melt elasticity, i.e., a high elastic extension and recovery.Type: GrantFiled: February 15, 2008Date of Patent: November 8, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Mun Fu Tse, Abdelhadi Sahnoune, Charles L. Sims, James N. Coffey -
Patent number: 8013093Abstract: The present invention is directed generally to the use of propylene-based elastomers in articles. The propylene-based elastomers have isotactic polypropylene crystallinity, a melting point by DSC of 110° C. or less, a heat of fusion of from 5 to 50 J/g, and comprise at least 75 wt % propylene-derived units, at least 6 wt % ethylene-derived units, and optionally diene-derived units. The present invention is also directed to processes for making articles comprising propylene-based elastomers.Type: GrantFiled: November 12, 2004Date of Patent: September 6, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Chia Yung Cheng, Srivatsan Srinivas, Abdelhadi Sahnoune
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Publication number: 20110118370Abstract: This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec?1 and temperature of 180° C.Type: ApplicationFiled: January 7, 2011Publication date: May 19, 2011Inventors: Peijun JIANG, Abdelhadi Sahnoune, Armenag Dekmezian
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Patent number: 7928165Abstract: The present invention provides a crosslinked propylene-based elastomer having an isotactic propylene triad tacticity of from 65 to 95%, a melting point by DSC equal to or less than 110° C., a heat of fusion of from 5 J/g to 50 J/g, and a haze % per 100 mil thickness of 95 or less, and comprising at least 75 wt % propylene-derived units, at least 5 wt % ethylene-derived units, and optionally 10 wt % or less of diene-derived units. In an embodiment, the present invention is a blend of a continuous phase of the crosslinked propylene-based elastomer and a dispersed phase of a crystalline polymeric compound. The present invention also provides elastomeric compositions comprising a crosslinked propylene-based elastomer as described herein and 100 parts by weight or less of a pigment per 100 parts of polymer. The present invention also provides films, fibers, nonwovens, molded objects, and extruded forms which include any of the inventive compositions described herein.Type: GrantFiled: November 12, 2004Date of Patent: April 19, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Abdelhadi Sahnoune
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Patent number: 7863364Abstract: The invention relates to a process for making an article subject to dynamic loading, the process comprises: (i) shaping a polymer-containing composition in the green state, the composition comprising (a) a continuous phase of a polymeric component of at least 15 wt %, based on the total weight of the polymer component of a propylene elastomer having a heat of fusion of less than 70 J/g and an isotactic triad tacticity of 50 to 99% and optionally containing units derived from a diene, the polymeric component having a density of less than 0.9 g/cm3 and (b) from 20 to 120 phr, preferably 30 to 100 phr, most preferably 40 to 90 phr based on the total weight of the polymer component of a reinforcing filler component; and (c) a peroxide curative. The composition is combined with a fibrous reinforcement which is then cured to a cure state as determined by ODR @ 170° C., 30 min MH-ML of from 5 to 80 dNm.Type: GrantFiled: December 7, 2006Date of Patent: January 4, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alistair Duncan Westwood, Abdelhadi Sahnoune
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Patent number: 7858701Abstract: The present invention also discloses a homogeneous blend composition comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0.1% to about 25% from isotactic polypropylene sequences, a melting point of from 45° C. to 105° C., and wherein the Melt Flow Rate (MFR @ 230° C.) of the first polymer component is between 300 g/10 min to 5000 g/10 min. b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0.0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110° C.Type: GrantFiled: April 3, 2008Date of Patent: December 28, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Charles L. Sims, Peijun Jiang, Abdelhadi Sahnoune, Derek W. Thurman
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Publication number: 20090270545Abstract: Thermoplastic polyolefins (TPOs) and/or thermoplastic vulcanizates (TPVs) are blended with low molecular weight propylene-dominated copolymers to provide polymeric compositions with an improved balance between processability and toughness. The compositions have improved processability by facilitating the ease with which a TPO or TPV, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into articles.Type: ApplicationFiled: April 23, 2008Publication date: October 29, 2009Inventors: Abdelhadi Sahnoune, Sudhin Datta, Mun Fu Tse, Charles L. Sims, James N. Coffey, Peijun Jiang
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Patent number: 7605217Abstract: The present invention provides a crosslinked propylene-based elastomer having an isotactic propylene triad tacticity of from 65 to 95%, a melting point by DSC equal to or less than 110° C., a heat of fusion of from 5 J/g to 50 J/g, an ultimate tensile strength of 1 MPa or greater, a Die C tear strength of 50 lb/in or greater, and a ratio of Shore A hardness to MFR@230° C. prior to crosslinking of 160 or less, and comprising at least 75 wt % propylene-derived units, at least 5 wt % ethylene-derived units, and from 0.3 to 10 wt % diene-derived units. The present invention also provides elastomeric compositions comprising a crosslinked propylene-based elastomer as described herein and from 0 to 5 parts by weight of carbon black per 100 parts of polymer. The present invention also provides articles such as films, fibers, nonwovens, molded objects, and extruded forms which include any of the inventive compositions described herein.Type: GrantFiled: November 12, 2004Date of Patent: October 20, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Abdelhadi Sahnoune
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Publication number: 20090247656Abstract: A closed cell foam material contains a propylene based polymer comprising from about 5% to about 32% by weight ?-olefin units. The propylene based polymer has a heat of fusion, as determined by DSC, of less than 80 J/g. The material also contains 0.5 to 5 phr peroxide, 1.0 to 5.0 phr blowing agent, and 0.1 to 10 phr co-agent. The cells of closed cell foam material have a diameter in the range of 0.1 to 1.5 mm.Type: ApplicationFiled: April 1, 2008Publication date: October 1, 2009Inventors: Sunny Jacob, Abdelhadi Sahnoune, Jun Tong, Randal Howard Kerstetter
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Blends Of Low Crystallinity, Low Molecular Weight Propylene Copolymers And Styrenic Block Copolymers
Publication number: 20090205776Abstract: Styrenic block copolymers are blended with propylene copolymers to provide polymeric compositions with an improved balance between processability and elasticity. The compositions have improved processability by facilitating the ease with which a rubbery material, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into films or other articles, assisted by a desired level of melt elasticity, i.e., a high elastic extension and recovery.Type: ApplicationFiled: February 15, 2008Publication date: August 20, 2009Inventors: Sudhun Datta, Mun Fu Tse, Abdelhadi Sahnoune, Charles L. Sims, James N. Coffey -
Publication number: 20080249232Abstract: The present invention also discloses a heterogeneous blend composition comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0.1% to about 25% from isotactic polypropylene sequences, a melting point of from 45° C. to 105° C., and wherein the Melt Flow Rate (MFR@230° C.) of the first polymer component is between 300 g/10 min to 5000 g/10 min b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0.0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110° C.Type: ApplicationFiled: April 3, 2008Publication date: October 9, 2008Inventors: Sudhin Datta, Charles L. Sims, Peijun Jiang, Abdelhadi Sahnoune, Derek W. Thurman