Patents by Inventor Fangwen GUAN

Fangwen GUAN 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).

  • Patent number: 10968330
    Abstract: The present invention provides a particulate nucleating agent and a method for manufacturing the same. The particulate nucleating agent has an average radial crushing strength of 0.2-25.0N/cm. A weight content of the active ingredients in the particulate nucleating agent is no less than 90 wt %. The particulate nucleating agent is a transparent particulate nucleating agent. The particulate nucleating agent of the present invention can be fed smoothly during production without the change of the chemical composition thereof, so as to realize uniform dispersion in the polymer and reduce defects such as white dots in the polymer. The present invention breaks the traditional view of refining particles of nucleating agent to obtain a polymer having desirable properties, and avoids adding large amount of materials except the active ingredients during the granulation process of the nucleating agent.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: April 6, 2021
    Assignee: GCH Technology Co., Ltd.
    Inventors: Wenlin Zhao, Fangwen Guan
  • Publication number: 20200131331
    Abstract: The present invention provides a particulate nucleating agent and a method for manufacturing the same. The particulate nucleating agent has an average radial crushing strength of 0.2-25.0N/cm. A weight content of the active ingredients in the particulate nucleating agent is no less than 90 wt %. The particulate nucleating agent is a transparent particulate nucleating agent. The particulate nucleating agent of the present invention can be fed smoothly during production without the change of the chemical composition thereof, so as to realize uniform dispersion in the polymer and reduce defects such as white dots in the polymer. The present invention breaks the traditional view of refining particles of nucleating agent to obtain a polymer having desirable properties, and avoids adding large amount of materials except the active ingredients during the granulation process of the nucleating agent.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 30, 2020
    Inventors: Wenlin ZHAO, Fangwen GUAN