Patents by Inventor Philip F. CHU

Philip F. CHU 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).

  • Polyvinyl alcohol-sized fillers for reinforcing plastics
    Patent number: 12104024
    Abstract: A sized reinforcing filler, comprising a filler and a sizing agent disposed on at least a portion of the filler, to be used for reinforcement for plastics is disclosed. The sizing agent is based upon at least one of a polyvinyl alcohol, an ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer. The polyvinyl alcohol is useful as a size for all types of fibers and particles to reinforce all types of commodity and engineering plastics, particularly polyolefin resins, to form polymer composites. As such, polymer composites reinforced with such sized reinforcing fillers, as well as articles, components, and products including such polymers composites, are also disclosed.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: October 1, 2024
    Assignee: Zoltek Corporation
    Inventors: Philip F. Chu, Philip L. Schell, David M. Corbin, Shigeo Iwasawa
  • POLYVINYL ALCOHOL-SIZED FILLERS FOR REINFORCING PLASTICS
    Publication number: 20210363313
    Abstract: A sized reinforcing filler, comprising a filler and a sizing agent disposed on at least a portion of the filler, to be used for reinforcement for plastics is disclosed. The sizing agent is based upon at least one of a polyvinyl alcohol, an ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer. The polyvinyl alcohol is useful as a size for all types of fibers and particles to reinforce all types of commodity and engineering plastics, particularly polyolefin resins, to form polymer composites. As such, polymer composites reinforced with such sized reinforcing fillers, as well as articles, components, and products including such polymers composites, are also disclosed.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 25, 2021
    Applicant: Zoltek Corporation
    Inventors: Philip F. CHU, Philip L. SCHELL, David M. CORBIN, Shigeo IWASAWA