Patents Assigned to Luvantix Co., Ltd.
  • Photocurable and antistatic resin composition for coating optical fiber
    Patent number: 7524890
    Abstract: The present invention is directed to a photocurable and antistatic resin composition for coating an optical fiber, comprising (A) a photopolymerizable urethane acrylate oligomer, (B) a reactive monomer having at least one (meth)acrylate or vinyl group, (C) a photoinitiator, and (D) an antistatic agent compatible with the oligomer and monomer components, and optionally (E) a pigment or dye. The coating of the inventive composition can increase the productivity of the optical fiber, and provide an optical fiber having a uniform coating layer.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: April 28, 2009
    Assignee: Luvantix Co., Ltd
    Inventors: Dae Sung Lee, Kyoung Beom Min, Jae Myoung Ryu, Hae Woog Choi, Yong Min Kim
  • Uv-curable and foamable resin composition
    Patent number: 7120342
    Abstract: A UV-curable and foamable resin composition comprising a photopolymerizable urethane acrylate oligomer, a photopolymerable monomer, a photo polymerization initiator, a photolytic foaming agent selected from an azo compound, a combination of sulonium salt and an inorganic carbonate, and a mixture thereof, and a photolysis catalyst is useful for coating a fiber or ribbon bundle to be applied to an air blown fiber system.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 10, 2006
    Assignee: Luvantix Co., Ltd.
    Inventors: Se Lee Chang, Hwa Joong Kim, Hae Woog Choi, Jung Hyun Oh, Dae Sung Lee