Patents by Inventor Peter J. Wallen

Peter J. Wallen 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).

  • Processes for making silane, hydrophobated silica, silica masterbatch and rubber products
    Patent number: 8865799
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: October 21, 2014
    Assignees: Industrias Negromex, S.A. de C.V., Cooper Tire & Rubber Company
    Inventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
  • Processes for Making Silane, Hydrophobated Silica, Silica Masterbatch and Rubber Products
    Publication number: 20140083598
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Application
    Filed: January 22, 2013
    Publication date: March 27, 2014
    Inventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
  • Processes for Making Silane, Hydrophobated Silica, Silica Masterbatch and Rubber Products
    Publication number: 20130192746
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Application
    Filed: January 22, 2013
    Publication date: August 1, 2013
    Inventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
  • Processes for making silane, hydrophobated silica, silica masterbatch and rubber products
    Patent number: 8357733
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: January 22, 2013
    Assignees: Industrias Negromex, S.A. de C.V., Cooper Tire & Rubber Company
    Inventors: Peter J. Wallen, Gregory C. Bowman, Howard A. Colvin, Christopher J. Hardiman, José Eduardo Rojas Reyna
  • Processes for making silane, hydrophobated silica, silica masterbatch and rubber products
    Publication number: 20100022684
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Inventors: Peter J. Wallen, Gregory C. Bowman, Howard A. Colvin, Christopher J. Hardiman, José Eduardo Rojas Reyna