Patents by Inventor Refat AL SHANNAQ

Refat AL SHANNAQ 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).

  • Method for low temperature microencapsulation of phase change materials
    Patent number: 10913882
    Abstract: The method for low temperature microencapsulation of phase change materials or other components includes the following steps: (a) preparing a phase change emulsion including droplets of at least one active phase-change material in water with a surfactant; (b) adding a monomer of at least one encapsulating agent; (c) introducing the phase change emulsion into a UV reactor while stirring the emulsion; and (d) initiating the photo polymerization of monomers using at least one UV lamp inside the UV reactor for photo polymerization until the phase change material is encapsulated within a polymeric shell to form microcapsules. The microcapsules obtained by this process may have a diameter between about 0.5 to about 2 ?m. Other sizes can also be obtained by changing stirring speed of the emulsion.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 9, 2021
    Assignees: QATAR UNIVERSITY, COLLEGE OF THE NORTH ATLANTIC-QATAR, AUCKLAND UNISERVICES LIMITED
    Inventors: Mohammed Farid, Refat Al Shannaq, Shaheen Al-Muhtaseb, Jamal Kurdi
  • METHOD FOR LOW TEMPERATURE MICROENCAPSULATION OF PHASE CHANGE MATERIALS
    Publication number: 20180223146
    Abstract: The method for low temperature microencapsulation of phase change materials or other components includes the following steps: (a) preparing a phase change emulsion including droplets of at least one active phase-change material in water with a surfactant; (b) adding a monomer of at least one encapsulating agent; (c) introducing the phase change emulsion into a UV reactor while stirring the emulsion; and (d) initiating the photo polymerization of monomers using at least one UV lamp inside the UV reactor for photo polymerization until the phase change material is encapsulated within a polymeric shell to form microcapsules. The microcapsules obtained by this process may have a diameter between about 0.5 to about 2 ?m. Other sizes can also be obtained by changing stirring speed of the emulsion.
    Type: Application
    Filed: August 31, 2016
    Publication date: August 9, 2018
    Applicants: College of the North Atlantic - Qatar, The University of Auckland, Qatar University
    Inventors: Mohammed FARID, Refat AL SHANNAQ, Shaheen AL-MUHTASEB, Jamal KURDI