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Patent
King Fahd University of Petroleum, Minerals, King Abdulaziz City for Science and Technology | Date: 2016-09-30

A zwitterionic monomer and corresponding cyclopolymerized polyzwitterion () (PZ) (i.e. poly(Z-alt-SO_(2)). Phosophonate ester hydroloysis in PZ gave a pH-responsive polyzwitterionic acid () (PZA). The PZA under pH-induced transformation was converted into polyzwitterion/anion () (PZAN) and polyzwitterion/dianion (=) (PZDAN).


Patent
King Abdulaziz City for Science and Technology | Date: 2016-11-02

Interlaced bi-sensor super-resolution enhancement techniques and a resultant scalable pixel array suitable for a mega-pixel design are disclosed. The method includes interlacing a first array of pixels of a first size with a second array of pixels of a second size. The interlacing of the first array of pixels with the second array of pixels avoids crossing two or more photosensitive areas of the first array of pixels and the second array of pixels.


Patent
King Abdulaziz City for Science and Technology | Date: 2016-11-02

Interlaced bi-sensor super-resolution enhancement techniques and a resultant scalable pixel array suitable for a mega-pixel design are disclosed. The method includes interlacing a first array of pixels of a first size with a second array of pixels of a second size. The interlacing of the first array of pixels with the second array of pixels avoids crossing two or more photosensitive areas of the first array of pixels and the second array of pixels.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-02-01

A reprogrammable testing circuit for testing different types of valves may obtain a direction limit for a valve; obtain a test direction input for the valve; determine whether the direction limit of the valve has been reached or when there is an attempt to exceed it based on a current position of the valve, the test direction input, a valve test procedure; run a customized test on the valve in a direction of the direction input based on determining that the direction limit has not been reached; actively comparing the current position of the valve with the direction limit while running the customized test; and discontinue the customized test when the current position of the valve reaches the direction limit.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-03-15

A process for preparing a polymer-encapsulated carbon nanotube material is described. The process comprises a suspension polymerization process involving a carbon nanotube material. The process can also involve a charge control agent. The polymer-encapsulated carbon nanotube material has particles size in the micron range. The material can be used in toner applications.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-03-15

There is provided a process for preparing a polymerized toner material which comprises silicon (Si) nanoparticles. The process comprises mixing together and allowing to react: a water-based dispersion medium comprising silicon (Si) nanoparticles and at least one conventional dispersant, a polymer resin comprising one type of monomers or more, a coloring agent, and a charge control agent.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-01-04

Systems and methods for influencing thrust of a gas turbine engine are disclosed. A system includes a plurality of pipes positioned at an exhaust nozzle of the gas turbine engine. Each one of the plurality of pipes includes: an inlet inside the exhaust nozzle; an outlet inside the exhaust nozzle; and an intermediate portion outside the exhaust nozzle.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-02-15

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 (H_(2)F_(8)MA). 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.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-02-22

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.


Patent
King Abdulaziz City for Science and Technology | Date: 2017-02-22

The present disclosure relates to a composition, comprising a monomer; a reactive co-stabilizer; a carbon black; a surfactant; and a filler, wherein the composition is used to prepare a polymer/carbon black composite particle by MEP technology along with a method for same. The reactive co-stabilizer as disclosed is methacrylate derivative containing a long alkyl chain R, with R consisting of 6-22 C atoms and being branched or linear, saturated and/or unsaturated such as stearyl methacrylate (SteaMA). The polymer/carbon black composite particle as prepared has an enhanced stability and low VOC as compared to a pure polymer prepared by MEP. Further, the prepared polymer can be used as basic resins in materials for toner applications.

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