Patents by Inventor Manjun He

Manjun He 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).

  • Hydroxyfluoroalkyl-substituted styrenes and polymeric compositions containing same
    Patent number: 5352742
    Abstract: Fluorinated styrenes of the formula I: ##STR1## where R.sub.1 is a C.sub.1 -C.sub.6 alkyl and R.sub.2 is the repeating unit ##STR2## where x is zero or any positive integer, which are useful as compatibilizing and toughening agents for various polymers such as styrene, dienes (butadiene, isoprene, etc.) acrylates, polymethacrylates, polycarbonates, polyesters, polyamides, etc. Particularly preferred are p-(1,1,1,3,3,3-hexafluoro-2-hydroxy isopropyl)-.alpha.-methylstyrene, polymers thereof, block and random copolymers thereof and polymer blends incorporating the same.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 4, 1994
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Charles C. Han, Manjun He, Yongming Liu, Yi Feng, Ming Jiang
  • Hydroxyfluoroalkyl-substituted styrenes and polymeric compositions containing same
    Patent number: 5272232
    Abstract: Fluorinated styrenes of the formula I: ##STR1## where R.sub.1 is a C.sub.1 -C.sub.6 alkyl and R.sub.2 is the repeating unit ##STR2## where x is zero or any positive integer, which are useful as compatibilizing and toughening agents for various polymers such as styrene, dienes (butadiene, isoprene, etc.) acrylates, polymethacrylates, polycarbonates, polyesters, polyamides, etc. Particularly preferred are p-(1,1,1,3,3,3-hexafluoro-2-hydroxy isopropyl)-.alpha.-methylstyrene, polymers thereof, block and random copolymers thereof and polymer blends incorporating the same.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: December 21, 1993
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Charles C. Han, Manjun He, Yongming Liu, Yi Feng, Ming Jiang
  • Hydroxyfluoroalkyl-substituted styrenes and polymeric compositions containing same
    Patent number: 5241007
    Abstract: Fluorinated styrenes of the formula I; ##STR1## where R.sub.1 is a C.sub.1 -C.sub.6 alkyl and R.sub.2 is the repeating unit ##STR2## where x is zero or any positive integer, which are useful as compatibilizing and toughening agents for various polymers such as styrene, dienes (butadiene, isoprene, etc.) acrylates, polymethacrylates, polycarbonates, polyesters, polyamides, etc. Particularly preferred are p-(1,1,1,3,3,3-hexafluoro-2-hydroxy isopropyl)-.alpha.-methylstyrene, polymers thereof, block and random copolymers thereof and polymer blends incorporating the same.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: August 31, 1993
    Assignee: The United Statets of America as represented by the Secretary of Commerce
    Inventors: Charles C. Han, Manjun He, Yongming Liu, Yi Feng, Ming Jiang