Patents by Inventor Ralph A. Sterlen, Jr.

Ralph A. Sterlen, Jr. 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 preparing aqueous polymer emulsions
    Patent number: 5629375
    Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: May 13, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Ralph A. Sterlen, Jr., Wendy B. Daniels
  • Processes for preparing aqueous polymer emulsions
    Patent number: 5561189
    Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: October 1, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Ralph A. Sterlen, Jr., Wendy B. Daniels
  • Processes for preparing aqueous polymer emulsions
    Patent number: 5476900
    Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: December 19, 1995
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Ralph A. Sterlen, Jr., Wendy B. Daniels
  • Processes for preparing aqueous polymer emulsions
    Patent number: 5436292
    Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: July 25, 1995
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Ralph A. Sterlen, Jr., Wendy B. Daniels
  • Processes for preparing aqueous polymer emulsions
    Patent number: 5399618
    Abstract: This invention relates to processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions in which plating and/or grit formation is reduced in said processes. This invention also relates to methods for reducing plating and/or grit formation in processes for preparing aqueous polymer emulsions useful as thickening agents in aqueous compositions. This invention further relates to polymers which are soluble in, or swelled by, an aqueous alkaline medium to provide thickeners for use in aqueous coating compositions, especially latex paints.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 21, 1995
    Assignee: Union Carbide Chemical & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Ralph A. Sterlen, Jr., Wendy B. Daniels