Patents by Inventor Mitsubishi Engineering-Plastics Corporation

Mitsubishi Engineering-Plastics Corporation 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).

  • Publication number: 20140042646
    Abstract: There is provided an aromatic polycarbonate resin composition exhibiting excellent mechanical strength, transfer property, light transmittance, thermal stability and moldability which is capable of being molded into thin-wall products and large-size products, as well as a light guide plate produced from the resin composition. The present invention relates to an aromatic polycarbonate resin composition for light guide plates, comprising an aromatic polycarbonate resin having a viscosity-average molecular weight of 13,000 to 15,000, and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 1.5 to 2.7 in terms of polystyrene as measured by gel permeation chromatography; and a stabilizer and a releasing agent blended in the aromatic polycarbonate resin, as well as a light guide plate produced from the resin composition.
    Type: Application
    Filed: January 17, 2013
    Publication date: February 13, 2014
    Applicants: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, MITSUBISHI CHEMICAL CORPORATION, MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, MITSUBISHI GAS CHEMICAL COMPANY, INC., MITSUBISHI CHEMICAL CORPORATION
  • Publication number: 20130210981
    Abstract: In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventor: Mitsubishi Engineering-Plastics Corporation
  • Publication number: 20130210980
    Abstract: In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventor: Mitsubishi Engineering-Plastics Corporation
  • Publication number: 20130203912
    Abstract: In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 8, 2013
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventor: Mitsubishi Engineering-Plastics Corporation