Patents by Inventor Thomas C. Kirk

Thomas C. Kirk 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).

  • Patent number: 9309363
    Abstract: The present invention provides a method for making uniform, spherical, acrylic polymeric beads by jetting, the beads produced, and ion exchange resins produced from functionalizing the uniform, spherical polymeric beads.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: April 12, 2016
    Assignee: Rohm and Haas Company
    Inventors: John D. Finch, Thomas C. Kirk
  • Publication number: 20150064468
    Abstract: The present invention provides a method for making uniform, spherical, acrylic polymeric beads by jetting, the beads produced, and ion exchange resins produced from functionalizing the uniform, spherical polymeric beads.
    Type: Application
    Filed: March 27, 2013
    Publication date: March 5, 2015
    Inventors: John D. Finch, Thomas C. Kirk
  • Patent number: 5601723
    Abstract: The present invention provides an efficient aqueous polymerization process for preparing a water soluble polymer product having a molecular weight of less than 30,000. The polymer product is formed from about 3 to about 50 weight percent of at least one monoethylenically unsaturated dicarboxylic acid monomer, from about 50 to about 97 weight percent of at least one monoethylenically unsaturated monocarboxylic acid monomer, and from 0 to about 40 weight percent of one or more carboxyl-free monoethylenically unsaturated monomers. The process of the present invention may be run as a batch or continuous process. The process uses at least one chain transfer agent and is conducted at an aqueous solution pH of about 3 or less to keep the molecular weight of the polymer product below 30,000. The polymer product produced by the process of the present invention is useful as an additive in detergents, cleaning formulations, and water circulating systems.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 11, 1997
    Assignee: Rohm and Haas Company
    Inventors: Thomas C. Kirk, David Witiak
  • Patent number: 5597509
    Abstract: The present invention provides an efficient aqueous polymerization process for preparing a water soluble polymer product having a molecular weight of less than 30,000. The polymer product is formed from about 3 to about 50 weight percent of at least one monoethylenically unsaturated dicarboxylic acid monomer, from about 50 to about 97 weight percent of at least one monoethylenically unsaturated monocarboxylic acid monomer, and from 0 to about 40 weight percent of one or more carboxyl-free monoethylenically unsaturated monomers. The process of the present invention may be run as a batch or continuous process. The process uses at least one chain transfer agent and is conducted at an aqueous solution pH of about 3 or less to keep the molecular weight of the polymer product below 30,000. The polymer product produced by the process of the present invention is useful as an additive in detergents, cleaning formulations, and water circulating systems.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 28, 1997
    Assignee: Rohm and Haas Company
    Inventors: Thomas C. Kirk, David Witiak
  • Patent number: 5534182
    Abstract: This invention provides a process for preventing dye from transferring from one fabric to the same or different fabric in a laundry process. This invention also provides dye transfer inhibiting agents formulated into laundry detergent and fabric softening formulations. More specifically, a process is provided where 1) an aqueous bath is formed comprising a) water, b) dyed fabric, and c) a dye transfer inhibiting agent, 2) the dyed fabric is laundered in the aqueous bath and the fabric releases a portion of the dye from the dyed fabric into the bath, and 3) the dye transfer inhibiting agent is maintained in contact with the dyed fabric for the duration of the laundering step. The laundry detergent and fabric softening formulations are comprised of 0.1 to 15 percent by weight of one or more dye transfer inhibiting agents.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: July 9, 1996
    Assignee: Rohm and Haas Company
    Inventors: Thomas C. Kirk, Curtis Schwartz, Barry Weinstein
  • Patent number: 5380447
    Abstract: This invention provides a process for preventing dye from depositing onto fabric, and fabric finishing compositions useful in the dye deposition inhibiting process of this invention. Specifically, a process is provided where 1) an aqueous bath is formed comprising a) water, b) dyed fabric, and c) a dye deposition inhibiting agent, 2) the dyed fabric is treated in the aqueous bath and the fabric releases a portion of the dye from the dyed fabric into the bath, and 3) the dye inhibiting agent is maintained in contact with the dyed fabric for the duration of the treating step. The dye deposition inhibiting agent is added to the process as a fabric finishing composition comprised of at least 0.1 wt % dye deposition inhibiting agent.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: January 10, 1995
    Assignee: Rohm and Haas Company
    Inventors: Thomas C. Kirk, Curtis Schwartz, Barry Weinstein