Patents by Inventor Maxson LIU

Maxson LIU 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).

  • Accelerator compositions and methods
    Patent number: 10000623
    Abstract: The invention provides a composition comprising a mixture or reaction mixture of a carbodithioic acid of formula: (I) or its internal salt; and at least one compound independently selected from a natural or synthetic rubber curing or vulcanization accelerator, activator or retarding agent. wherein R? and R? are independently selected from a C2-C18 aliphatic moiety; aromatic moiety; alicyclic moiety; aromatic heterocyclic moiety; and aliphatic heterocyclic moiety or R? and R? may together form part of an aromatic heterocyclic ring moiety or aliphatic heterocyclic ring moiety.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: June 19, 2018
    Assignee: ROBINSON BROTHERS LIMITED
    Inventors: Khirud Behari Chakraborty, Maxson Liu
  • ACCELERATOR COMPOSITIONS AND METHODS
    Publication number: 20160264760
    Abstract: The invention provides a composition comprising a mixture or reaction mixture of a carbodithioic acid of formula: (I) or its internal salt; and at least one compound independently selected from a natural or synthetic rubber curing or vulcanisation accelerator, activator or retarding agent. wherein R? and R? are independently selected from a C2-C18 aliphatic moiety; aromatic moiety; alicyclic moiety; aromatic heterocyclic moiety; and aliphatic heterocyclic moiety or R? and R? may together form part of an aromatic heterocyclic ring moiety or aliphatic heterocyclic ring moiety.
    Type: Application
    Filed: November 4, 2014
    Publication date: September 15, 2016
    Inventors: Khirud Behari CHAKRABORTY, Maxson LIU