Patents by Inventor Seo W. Kim

Seo W. Kim 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).

  • Aromatic polyester compounds and process for preparing them
    Patent number: 4816552
    Abstract: Polymers having improved tenacity and heat resistant properties are prepared by heating a mixture of a 4-acetoxybenzoic acid derivative, a hydroquinone diacetate derivative, a dicarboxylic acid, and a 4-acetoxy-(4-acetoxyphenyl)benzoate derivative in two steps to remove generated acetic acid and form the polymer, which is useful for making fibers, films and molded products.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 28, 1989
    Assignee: Kolon Industries, Inc.
    Inventors: Ho J. Park, Seo W. Kim, Jung I. Jin, Suck H. Lee