Patents by Inventor Mohammad Khajeheian

Mohammad Khajeheian 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).

  • Methods for lowering melt viscosity and improving heat-sealability of polyester and for manufacturing a heat-sealed container or package
    Patent number: 10493700
    Abstract: The invention relates to methods for lowering the melt viscosity and thereby improving heat-sealability of a polyester. The invention also relates to a method for manufacturing a heat-sealed container or package from fibrous-based, polyester-coated packaging material, and a method for heat-sealing polyester. The solution according to the invention is subjecting polyester to electron beam (EB) radiation. The lowered melt viscosity allows a lower heat-sealing temperature, and permits sealing of polyester to an uncoated fibrous surface. The preferred polyester for the invention is polylactide, as such or as blended with another polyester.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 3, 2019
    Assignee: Stora Enso OYJ
    Inventors: Kimmo Nevalainen, Ville Ribu, Jari Räsänen, Outi Kylliainen, Ari Rosling, Mohammad Khajeheian, Jurkka Kuusipalo, Sami Kotkamo, Mikko Tuominen
  • Method of use of polylactide and manufacturing a heat-sealed paper or board container or package
    Patent number: 10414105
    Abstract: The invention relates to use of polylactide (PLA) as an extruded polymer coating on paper or board intended for the production of containers and packages, which are heated in a stove or microwave oven. According to the invention a polyfunctional cross-linking agent, such as trialkyl isocyanurate (TAIC), is blended with PLA, and the extruded coating layer is subjected to cross-linking electron beam (EB) radiation. PLA may be used as such or blended with another biodegradable polyester such as polybutylene succinate (PBS). EB radiation has been found to improve adhesion of the coating to the paper or board substrate, heat-scalability of the coating, and heat-resistance of the finished containers and packages.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 17, 2019
    Assignee: Stora Enso OYJ
    Inventors: Jari Räsänen, Outi Kylliäinen, Kimmo Nevalainen, Ville Ribu, Ari Rosling, Mohammad Khajeheian, Ella Lindström
  • METHOD OF USE OF POLYLACTIDE AND METHOD OF MANUFACTURING A HEAT-SEALED PAPER OR BOARD CONTAINER OR PACKAGE
    Publication number: 20170008227
    Abstract: The invention relates to use of polylactide (PLA) as an extruded polymer coating on paper or board intended for the production of containers and packages, which are heated in a stove or microwave oven. According to the invention a polyfunctional cross-linking agent, such as trialkyl isocyanureate (TAIC), is blended with PLA, and the extruded coating layer is subjected to cross-linking electron beam (EB) radiation. PLA may be used as such or blended with another biodegradable polyester such as polybutylene succinate (PBS). EB radiation has been found to improve adhesion of the coating to the paper or board substrate, heat-scalability of the coating, and heat-resistance of the finished containers and packages.
    Type: Application
    Filed: January 22, 2015
    Publication date: January 12, 2017
    Inventors: Jari Räsänen, Outi Kylliäinen, Kimmo Nevalainen, Ville Ribu, Ari Rosling, Mohammad Khajeheian, Ella Lindström
  • METHODS FOR LOWERING MELT VISCOSITY AND IMPROVING HEAT-SEALABILITY OF POLYESTER AND FOR MANUFACTURING A HEAT-SEALED CONTAINER OR PACKAGE
    Publication number: 20170008226
    Abstract: The invention relates to methods for lowering the melt viscosity and thereby improving heat-sealability of a polyester. The invention also relates to a method for manufacturing a heat-sealed container or package from fibrous- based, polyester-coated packaging material, and a method for heat-sealing polyester. The solution according to the invention is subjecting polyester to electron beam (EB) radiation. The lowered melt viscosity allows a lower heat-sealing temperature, and permits sealing of polyester to an uncoated fibrous surface. The preferred polyester for the invention is polylactide, as such or as blended with another polyester.
    Type: Application
    Filed: January 22, 2015
    Publication date: January 12, 2017
    Inventors: Kimmo Nevalainen, Ville Ribu, Jari Räsänen, Outi Kylliainen, Ari Rosling, Mohammad Khajeheian, Jurkka Kuusipalo, Sami Kotkamo, Mikko Touminen