公开(公告)号：US08663722B2

公开(公告)日：2014-03-04

申请号：US13743340

申请日：2013-01-17

Applicant: King Abdulaziz City for Science and Technology

Inventor： Ahmed Ali Basfar ,  Khaled Abdel-Aziz Mohamed

IPC: A23L1/00

CPC classification number: A23L1/0257 ,  A23L5/20 ,  A23L5/30 ,  A23L5/36

Abstract: The present disclosure relates to a process for removal of pesticide residues from aqueous solutions and food products by ionizing radiation. Standard pesticides concentrations recognized by international organizations as maximum residues limit (MRLs) were used as the targeted concentrations in both aqueous solutions and food products. Commercially known pesticides and recommended irradiation doses by International Atomic Energy Agency (IAEA) were selected for this investigation. Aqueous solutions and food products fortified with pesticide residues were subjected to selected doses of ionizing radiation. Radiation-induced removal of pesticide residues is generally greater in aqueous solutions than in food products. Ionizing radiation can reduce the residues of pirimiphos-methyl in potatoes, grapes and dates; malathion and cypermethrin in grapes to below MRLs at the recommended irradiation doses.

Abstract translation: 本公开涉及通过电离辐射从水溶液和食品中除去农药残留物的方法。 国际组织认可的最大残留限量（MRL）的标准农药浓度用作水溶液和食品中的目标浓度。 选择了国际原子能机构（IAEA）的商业杀虫剂和推荐的照射剂量进行调查。 用农药残留强化的水溶液和食品经受选定剂量的电离辐射。 在水溶液中，农药残留物的辐射去除通常大于食品。 电离辐射可以减少马铃薯，葡萄和枣中的猕猴桃残留物; 马拉硫磷和氯氰菊酯在葡萄中以推荐的照射剂量低于MRLs。

公开(公告)号：US20130129877A1

公开(公告)日：2013-05-23

申请号：US13743340

申请日：2013-01-17

Applicant: King Abdulaziz City for Science and Technology

Inventor： Ahmed Ali Basfar ,  Khaled Abdel-Aziz Mohamed

IPC: A23L1/025

CPC classification number: A23L1/0257 ,  A23L5/20 ,  A23L5/30 ,  A23L5/36

Abstract: The present disclosure relates to a process for removal of pesticide residues from aqueous solutions and food products by ionizing radiation. Standard pesticides concentrations recognized by international organizations as maximum residues limit (MRLs) were used as the targeted concentrations in both aqueous solutions and food products. Commercially known pesticides and recommended irradiation doses by International Atomic Energy Agency (IAEA) were selected for this investigation. Aqueous solutions and food products fortified with pesticide residues were subjected to selected doses of ionizing radiation. Radiation-induced removal of pesticide residues is generally greater in aqueous solutions than in food products. Ionizing radiation can reduce the residues of pirimiphos-methyl in potatoes, grapes and dates; malathion and cypermethrin in grapes to below MRLs at the recommended irradiation doses.

Abstract translation: 本公开涉及通过电离辐射从水溶液和食品中除去农药残留物的方法。 国际组织认可的最大残留限量（MRL）的标准农药浓度用作水溶液和食品中的目标浓度。 选择了国际原子能机构（IAEA）的商业杀虫剂和推荐的照射剂量进行这项调查。 用农药残留强化的水溶液和食品经受选定剂量的电离辐射。 在水溶液中，农药残留物的辐射去除通常大于食品。 电离辐射可以减少马铃薯，葡萄和枣中的猕猴桃残留物; 马拉硫磷和氯氰菊酯在葡萄中以推荐的照射剂量低于MRLs。

公开(公告)号：US09745427B2

公开(公告)日：2017-08-29

申请号：US13931951

申请日：2013-06-30

Applicant: King Abdulaziz City for Science and Technology

Inventor： Ahmed Ali Basfar ,  Salah Lofty Ahmed Khalil

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08J3/24 ,  C08J3/28 ,  B29C61/00

CPC classification number: C08J3/246 ,  B29C61/003 ,  C08J3/24 ,  C08J3/28 ,  C08J2329/04 ,  C08J2435/02 ,  C08K3/041 ,  C08K5/07 ,  C08K7/24 ,  C08L29/04 ,  C08L33/14 ,  C08L2201/12

Abstract: Shape memory polymers (SMP) based on poly vinyl alcohol (PVA) in the presence of 2-carboxyethyl acrylate oligomers (CEA), multi-wall carbon nanotubes (MWCNTs) and cross linked by ionizing radiation were investigated. Chemical crosslinking by glutaraldehyde for PVA in the presence of CEA and MWCNTs was also studied. Radiation cross linked SMP exhibits good temperature responsive shape memory behavior as demonstrated by thermal properties of radiation investigated by dynamic mechanical analysis. Transition temperature at Tan δ of radiation cross linked SMP decreased significantly by 6 and 13° C. due to addition of MWCNTs. The developed SMP exhibited promising shape memory behavior of radiation cross linked SMP for biomedical applications between temperatures range of Tan δ. Results on the gel fraction revealed significant reduction in swelling and increase in gelation due to chemical cross linking with glutaraldehyde. The radiation cross linked SMP reached 100% gelation at an irradiation dose of 50 kGy.

公开(公告)号：US09574021B1

公开(公告)日：2017-02-21

申请号：US14827270

申请日：2015-08-14

Applicant: King Abdulaziz City for Science and Technology (KACST)

Inventor： Ahmed Ali Basfar ,  Klaus Jähnichen ,  Brigitte Voit

IPC: C08F2/24 ,  C08F2/44 ,  G03G9/08 ,  C08F12/08 ,  C08K3/04 ,  G03G9/087

CPC classification number: C08F2/24 ,  C08F2/44 ,  C08F12/08 ,  C08F112/08 ,  C08F212/08 ,  C08K3/04 ,  G03G9/0806 ,  G03G9/08706 ,  G03G9/08708 ,  C08F2220/1825 ,  C08F220/22 ,  C08L25/06

Abstract: The present disclosure relates to a composition and a method to prepare a polymer nanoparticle using miniemulsion polymerization (MEP) comprising a monomer, a reactive co-stabilizer and a reactive surfactant. The reactive co-stabilizer as disclosed is a methacrylate containing perfluorinated or semifluorinated side chains like 1H,1H,2H,2H-perfluorodecyl methacrylate (H2F8MA). Further, the reactive stabilizer as used in the preparation is cetyl trimethyl ammonium chloride (CTAB). The polymer nanoparticle as formed has an enhanced stability and low VOC as compared to a pure polymer prepared by MEP.

Abstract translation: 本公开涉及使用包含单体，反应性共稳定剂和反应性表面活性剂的细乳液聚合（MEP）制备聚合物纳米颗粒的组合物和方法。 所公开的反应性共稳定剂是含有全氟化或半氟化侧链，如1H，1H，2H，2H-全氟癸基甲基丙烯酸酯（H 2 F 8 MA）的甲基丙烯酸酯。 此外，制备中使用的反应性稳定剂是十六烷基三甲基氯化铵（CTAB）。 与由MEP制备的纯聚合物相比，形成的聚合物纳米颗粒具有增强的稳定性和低VOC。

公开(公告)号：US09477168B1

公开(公告)日：2016-10-25

申请号：US14827261

申请日：2015-08-14

Applicant: King Abdulaziz City for Science and Technology

Inventor： Ahmed Ali Basfar ,  Jatindranath Maiti

IPC: C08L1/00 ,  G03G9/093 ,  G03G9/08

CPC classification number: G03G9/09385 ,  C08K3/04 ,  C08K9/10 ,  G03G9/0806

Abstract: A process for preparing a polymer-encapsulated carbon black material is described. The process comprises: (a) preparing a mixture of an ionic monomer, a stabilizer and carbon black in water; (b) adding an initiator; (c) adjusting the temperature to a temperature above room temperature; and (d) adding at least one other monomer and a charge control agent to obtain the material. The process is performed under continuous stirring. The polymer-encapsulated carbon black material is surfactant-free and is used in the production of toners.

Abstract translation: 描述了制备聚合物包封的炭黑材料的方法。 该方法包括：（a）制备离子单体，稳定剂和炭黑在水中的混合物; （b）加入引发剂; （c）将温度调节到高于室温的温度; 和（d）加入至少一种其它单体和电荷控制剂以获得该材料。 该过程在连续搅拌下进行。 聚合物包封的炭黑材料不含表面活性剂，用于生产调色剂。

公开(公告)号：US09365780B2

公开(公告)日：2016-06-14

申请号：US14183821

申请日：2014-02-19

Applicant: King Abdulaziz City for Science and Technology

Inventor： Ahmed Ali Basfar ,  Yasser S. Soliman

IPC: C10G27/14 ,  C10G27/04 ,  C10G53/14 ,  C10G53/02

CPC classification number: C10G27/14 ,  C10G27/04 ,  C10G53/14 ,  C10G2300/202

Abstract: A method and process to remove sulfur compounds from a real fuel product of straight-run diesel (SRD) by the action of ozone bubbling and tert-butyl hydroperoxide (t-BUOOH) under normal laboratory conditions is disclosed. Slight desulfurization is taken place after ozone bubbling process which may be assigned to a removal of sulfur compounds in a gaseous form (SOx). Most of the organically bound sulfur and/or elemental sulfur and hydrogen sulfide still exist in the ozonized samples. Sulfur removal from SRD samples was achieved by combining ozone bubbling with extraction by using different solvents to remove the oxidized sulfur compound (polar) from ozonized samples. This method provides a considerable level of total sulfur reduction where the reduction of sulfur reaches 93%.

Abstract translation: 公开了在正常实验室条件下通过臭氧起泡和叔丁基过氧化氢（t-BUOOH）的作用从直馏柴油（SRD）的实际燃料产物中除去硫化合物的方法和方法。 在臭氧起泡过程之后发生轻微的脱硫，这可以被分配为以气态形式除去硫化合物（SOx）。 大多数有机结合的硫和/或元素硫和硫化氢仍然存在于臭氧化样品中。 通过使用不同的溶剂将臭氧发泡与萃取相结合，从臭氧化样品中除去氧化的硫化合物（极性），从而实现SRD样品的脱硫。 这种方法提供了相当程度的总硫减少，其中硫的还原达到93％。