Patents Assigned to Sam Yang Co., Limited
  • Process for preparing hydrophilic polymer films and apparatus thereof
    Patent number: 5403626
    Abstract: A process for preparing a hydrophilic polymer film comprising coating a photopolymerization solution which comprises a hydrophilic monomer of lower water swelling ability and a UV stabilizer, on the film surface pre-treated with high frequency, and photopolymerizing the solution so as to improve the hydrophilic property, climate-resistability, and blocking property of the polymer film.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: April 4, 1995
    Assignee: Sam Yang Co., Limited
    Inventors: Young H. Kim, Jae W. Kim, Jeong W. An, Woog Y. Lee