Patents by Inventor Yang Eun Lee

Yang Eun Lee 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).

  • Polyalkylene carbonate resin composition having high thermal stability
    Patent number: 9969878
    Abstract: Provided is a polyalkylene carbonate resin composition having high thermal resistance including: polyalkylene carbonate obtained by reacting carbon dioxide with one or two or more different epoxide compound(s) selected from the group consisting of C2-C10 alkylene oxide unsubstituted or substituted with halogen or alkoxy, C4-C20 cycloalkylene oxide unsubstituted or substituted with halogen or alkoxy, and C8-C20 styrene oxide unsubstituted or substituted with halogen, alkoxy, alkyl or aryl; an epoxy resin; and a curing agent.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 15, 2018
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ho Seong Lee, Yang Eun Lee, Je Ho Lee
  • Polyalkylene carbonate resin composition
    Patent number: 9346951
    Abstract: Provided is a compounding resin composition containing a compatibilizer, based on polyalkylene carbonate and polyolefin or biodegradable polyester. According to the present invention, a polyalkylene carbonate resin composition capable of improving mechanical properties such as tensile strength, elongation, tearing strength, and the like, or physical properties such as adhesive force, oxygen and moisture barrier properties, heat stability, flexibility, and the like, by preparing and applying the compatibilizer for improving compatibility of the compounding resin, and a multilayer film and a molded product manufactured using the same may be provided.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: May 24, 2016
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Yun Kyun Lee, Yang Eun Lee, Sung Ik Kim, Seung Gweon Hong, Tae Wook Kwon
  • Polyalkylene Carbonate Resin Composition Having High Thermal Stability
    Publication number: 20160122535
    Abstract: Provided is a polyalkylene carbonate resin composition having high thermal resistance including: polyalkylene carbonate obtained by reacting carbon dioxide with one or two or more different epoxide compound(s) selected from the group consisting of C2-C10 alkylene oxide unsubstituted or substituted with halogen or alkoxy, C4-C20 cycloalkylene oxide unsubstituted or substituted with halogen or alkoxy, and C8-C20 styrene oxide unsubstituted or substituted with halogen, alkoxy, alkyl or aryl; an epoxy resin; and a curing agent.
    Type: Application
    Filed: October 20, 2015
    Publication date: May 5, 2016
    Inventors: Ho Seong Lee, Yang Eun Lee, Je Ho Lee
  • Polyalkylene Carbonate Resin Composition
    Publication number: 20150203681
    Abstract: Provided is a compounding resin composition containing a compatibilizer, based on polyalkylene carbonate and polyolefin or biodegradable polyester. According to the present invention, a polyalkylene carbonate resin composition capable of improving mechanical properties such as tensile strength, elongation, tearing strength, and the like, or physical properties such as adhesive force, oxygen and moisture barrier properties, heat stability, flexibility, and the like, by preparing and applying the compatibilizer for improving compatibility of the compounding resin, and a multilayer film and a molded product manufactured using the same may be provided.
    Type: Application
    Filed: January 19, 2015
    Publication date: July 23, 2015
    Inventors: Yun Kyun Lee, Yang Eun Lee, Sung Ik Kim, Seung Gweon Hong, Tae Wook Kwon