Patents by Inventor Mamdouh Ahmed Al-Harthi
Mamdouh Ahmed Al-Harthi 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: 10483012Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: GrantFiled: June 28, 2019Date of Patent: November 19, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
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Publication number: 20190341165Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: ApplicationFiled: June 28, 2019Publication date: November 7, 2019Applicant: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed AL-HARTHI, Osamah Awadh BIN-DAHMAN
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Patent number: 10395792Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: GrantFiled: August 13, 2018Date of Patent: August 27, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
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Patent number: 10377888Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardancy, crystallinity and surface morphology.Type: GrantFiled: September 13, 2018Date of Patent: August 13, 2019Assignee: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed Al-Harthi
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Patent number: 10332651Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: GrantFiled: August 13, 2018Date of Patent: June 25, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
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Patent number: 10294353Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: GrantFiled: September 13, 2018Date of Patent: May 21, 2019Assignee: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed Al-Harthi
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Publication number: 20190115118Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: ApplicationFiled: August 13, 2018Publication date: April 18, 2019Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh Ahmed AL-HARTHI, Osamah Awadh Bin-dahman
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Publication number: 20190077943Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: ApplicationFiled: September 13, 2018Publication date: March 14, 2019Applicant: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed AL-HARTHI
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Publication number: 20190077942Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: ApplicationFiled: September 13, 2018Publication date: March 14, 2019Applicant: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed Al-Harthi
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Publication number: 20190043639Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: ApplicationFiled: August 13, 2018Publication date: February 7, 2019Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
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Patent number: 10113057Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: GrantFiled: May 7, 2018Date of Patent: October 30, 2018Assignee: King Fahd University of Pertoleum and MineralsInventor: Mamdouh Ahmed Al-Harthi
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Publication number: 20180305527Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: ApplicationFiled: May 7, 2018Publication date: October 25, 2018Applicant: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed AL-HARTHI
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Patent number: 10090078Abstract: Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer, graphene as the conductive nanofiller and starch as the polysaccharide are provided. In addition, processes for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: GrantFiled: March 11, 2016Date of Patent: October 2, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman
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Publication number: 20180244871Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.Type: ApplicationFiled: May 1, 2018Publication date: August 30, 2018Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh Ahmed AL-HARTHI, Mukarram ZUBAIR
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Patent number: 10059818Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.Type: GrantFiled: May 1, 2018Date of Patent: August 28, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
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Patent number: 10049784Abstract: Nanocomposite films comprising conductive nanofiller dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of filler and differing electrical resistivity values are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer matrix and nanosheets and/or nanoplatelets of graphene as the conductive filler are provided. In addition, a process for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.Type: GrantFiled: October 7, 2015Date of Patent: August 14, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman, Mostafizur Rahaman
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Patent number: 9994700Abstract: Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.Type: GrantFiled: May 28, 2017Date of Patent: June 12, 2018Assignee: King Fahd University of Petroleum and MineralsInventor: Mamdouh Ahmed Al-Harthi
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Patent number: 9976004Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.Type: GrantFiled: July 25, 2017Date of Patent: May 22, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
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Publication number: 20170335073Abstract: A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.Type: ApplicationFiled: July 25, 2017Publication date: November 23, 2017Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh Ahmed Al-Harthi, Mukarram Zubair
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Publication number: 20170335089Abstract: A method for enhancing an interaction between graphene nanoparticles and a poly(styrene-co-methylmethacrylate), including modifying graphene with nitric acid to form graphene nanoparticles surface modified with one or more oxygen functionalities, melt blending the poly(styrene-co-methylmethacrylate) and the modified graphene nanoparticles to obtain a nanocomposite, and exposing the nanocomposite to microwave irradiation to form defects in the graphene nanoparticles. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), and the graphene nanoparticles are surface modified with oxygen functionalities.Type: ApplicationFiled: July 25, 2017Publication date: November 23, 2017Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh Ahmed AL-HARTHI, Mukarram ZUBAIR