Patents by Inventor James W. Rawlins

James W. Rawlins 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).

  • Publication number: 20230256140
    Abstract: Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Inventors: Valentino Tramontano, Brent Marsden, Robert Almeida, Eric W. Dahl, James W. Rawlins, Sharathkumar K. Mendon
  • Publication number: 20210178025
    Abstract: Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Valentino J. Tramontano, Brent Marsden, Robert F. Almeida, Eric W. Dahl, James W. Rawlins, Sharathkumar K. Mendon
  • Publication number: 20170368233
    Abstract: Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.
    Type: Application
    Filed: September 11, 2017
    Publication date: December 28, 2017
    Inventors: Valentino J. TRAMONTANO, Brent MARSDEN, Robert F. ALMEIDA, Eric W. DAHL, James W. RAWLINS, Sharathkumar K. MENDON
  • Patent number: 9789228
    Abstract: Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 17, 2017
    Assignee: Covidien LP
    Inventors: Valentino J. Tramontano, Brent Marsden, Robert F. Almeida, Eric W. Dahl, James W. Rawlins, Sharathkumar K. Mendon
  • Publication number: 20160166738
    Abstract: Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Valentino J. TRAMONTANO, Brent MARSDEN, Robert F. ALMEIDA, Eric W. DAHL, James W. RAWLINS, Sharathkumar K. MENDON
  • Publication number: 20150176211
    Abstract: Certain embodiments described herein are directed articles that include a cellulosic substrate (or a non-cellulosic substrate) and an aqueous dispersion disposed on the substrate. In certain examples, the dispersion is effective to provide a water vapor perm rating of about 2 perms or less at 25% average RH as tested by ASTM D1653, or about 2 perm or less at 25% average RH as tested by ASTM E96, when the dispersion is cured as a coating on the substrate. In some embodiments, the substrate can be (or can be part of) a building substrate such as, for example, kraft paper placed on insulation (e.g., fiberglass insulation) or oriented strand board. In some instances, the aqueous dispersion can include a plant oil macromonomer or a waterborne epoxy resin.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 25, 2015
    Inventors: Kenneth D. Knapp, Kevin J. Gallagher, Murray S. Toas, Sam Yuan, Sharathkumar K. Mendon, James W. Rawlins
  • Patent number: 8680176
    Abstract: The present invention provides a nanocapsule of a blocked isocyanate encapsulated within a polymeric nanosphere. In one aspect, the polymeric nanosphere is functionalized. Free isocyanate functionality is released upon thermal annealing or UV exposure of the nanospheres containing the blocked isocyanate. This present invention also provides a novel method for encapsulating isocyanates in aqueous media. In one aspect, the method comprises miniemulsion polymerization. The thermally or UV deblocked isocyanate can be used as an active functional group for many potential applications.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: March 25, 2014
    Assignee: The University of Southern Mississippi
    Inventors: James W. Rawlins, Huaxiang Yang, Sharathkumar K. Mendon
  • Patent number: 8450414
    Abstract: The present invention is directed to a fatty amide (meth)acrylate monomer, methods of making the monomer, and latex polymers comprising the fatty amide (meth)acrylate monomer. The monomers are derived by reacting unsaturated vegetable oils with ethanolamine or substituted ethanolamine. The vegetable oil derivative is then reacted with either (meth)acryloyl chloride or (meth)acrylic acid to form a fatty amide (meth)acrylate monomer or the product of the reaction of hydroxyethyl (meth)acrylate reacted with isophorone diisocyanate to form a urethane fatty amide (meth)acrylate monomer. The increased hydrophilicity of the fatty amide (meth)acrylate monomer facilitates the diffusion through the aqueous phase. The monomer synthesis is designed to be glycerol ester-free to increase long term stability for monomers and polymers.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 28, 2013
    Assignee: The University of Southern Mississippi
    Inventors: Shelby F. Thames, James W. Rawlins, Sharathkumar K. Mendon, David Delatte
  • Publication number: 20120097194
    Abstract: Disclosed herein are materials including a polymeric materials such as a coating, a plastic, a laminate, a composite, an elastomer, an adhesive, or a sealant; a surface treatment such as a coating, a textile finish or a wax; a filler for such a polymeric material or a surface treatment, which includes an enzyme such as an esterase (e.g., a lipolytic enzyme, an organophosphorus compound degradation enzyme), wherein the enzyme decontaminates a chemical from the surface of the material. Also disclosed herein are methods of cleaning a surface of a material that comprises an enzyme.
    Type: Application
    Filed: January 11, 2011
    Publication date: April 26, 2012
    Applicant: REACTIVE SURFACES, LTD.
    Inventors: C. Steven McDaniel, Eric B. Williams, James W. Rawlins, Melinda Wales
  • Publication number: 20110250626
    Abstract: Disclosed herein are materials such as a coating, comprising a lipolytic enzyme or organophosphrous compound degrading enzyme. Also disclosed herein are methods of visually detecting enzyme activity in a coating by contacting the coating with a substrate of an enzyme and a visual indicator that changes appearance upon production of a product of enzyme activity on a tack-free coating surface.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: REACTIVE SURFACES, LTD.
    Inventors: Eric B. Williams, Dwaine Braasch, James W. Rawlins, Melinda Wales, C. Steven McDaniel
  • Patent number: 7999030
    Abstract: An ethylenically unsaturated vegetable oil is modified by the addition of an enophile or dienophile having an acid, ester or anhydride functionality. The modified vegetable oil is then reacted with a polyethylene glycol (PEG) derivative along with a functional vinyl monomer or a polyethylene glycol derivative that contains a vinyl functionality to form a vegetable oil derivative. The vegetable oil derivative is useful in forming latexes and coatings.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 16, 2011
    Assignee: Southern Diversified Products, LLC
    Inventors: Shelby F. Thames, James W. Rawlins, David Delatte, Sandipan Dutta
  • Publication number: 20100089287
    Abstract: The present invention provides a soy protein-based adhesive composition and a process for making the composition that may be used in particleboards and similar wood composite systems and that is formed from an aqueous mixture of calcium oxide, pine oil, protein, lignin, and acid. The preferred protein is an enzymatically-modified soy protein and the preferred enzyme is urease.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 15, 2010
    Inventors: Shelby F. Thames, James W. Rawlins, Richard C. Ferguson, Sharathkumar K. Mendon
  • Publication number: 20090143527
    Abstract: The present invention is directed to a fatty amide (meth)acrylate monomer, methods of making the monomer, and latex polymers comprising the fatty amide (meth)acrylate monomer. The monomers are derived by reacting unsaturated vegetable oils with ethanolamine or substituted ethanolamine. The vegetable oil derivative is then reacted with either (meth)acryloyl chloride or (meth)acrylic acid to form a fatty amide (meth)acrylate monomer or the product of the reaction of hydroxyethyl (meth)acrylate reacted with isophorone diisocyanate to form a urethane fatty amide (meth)acrylate monomer. The increased hydrophilicity of the fatty amide (meth)acrylate monomer facilitates the diffusion through the aqueous phase. The monomer synthesis is designed to be glycerol ester-free to increase long term stability for monomers and polymers.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 4, 2009
    Inventors: Shelby F. Thames, James W. Rawlins, Sharathkumar K. Mendon, David Delatte
  • Publication number: 20080234406
    Abstract: The present invention provides a nanocapsule of a blocked isocyanate encapsulated within a polymeric nanosphere. In one aspect, the polymeric nanosphere is functionalized. Free isocyanate functionality is released upon thermal annealing or UV exposure of the nanospheres containing the blocked isocyanate. This present invention also provides a novel method for encapsulating isocyanates in aqueous media. In one aspect, the method comprises miniemulsion polymerization. The thermally or UV deblocked isocyanate can be used as an active functional group for many potential applications.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 25, 2008
    Inventors: James W. Rawlins, Huaxiang Yang, Sharathkumar K. Mendon
  • Publication number: 20080183000
    Abstract: The present invention is directed to a fatty amide (meth)acrylate monomer, methods of making the monomer, and latex polymers comprising the fatty amide (meth)acrylate monomer. The monomers are derived by reacting unsaturated vegetable oils with ethanolamine or substituted ethanolamine. The vegetable oil derivative is then reacted with either (meth)acryloyl chloride or (meth)acrylic acid to form a fatty amide (meth)acrylate monomer or the product of the reaction of hydroxyethyl(meth)acrylate reacted with isophorone diisocyanate to form a urethane fatty amide(meth)acrylate monomer. The increased hydrophilicity of the fatty amide(meth)acrylate monomer facilitates the diffusion through the aqueous phase. The monomer synthesis is designed to be glycerol ester-free to increase long term stability for monomers and polymers.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 31, 2008
    Inventors: Shelby F. Thames, James W. Rawlins, Sharathkumar K. Mendon, David Delatte
  • Patent number: 6891012
    Abstract: A solid isocyanate-based composition having a glass transition temperature of at least 30° C. is produced by at least partially blocking the isocyanate groups of a polyisocyanate with a compound corresponding to the specified Formula I. This blocked isocyanate composition is useful in the production of powder coatings which are capable of being cured at temperatures of from 80 to 220° C.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: May 10, 2005
    Assignee: Bayer Materialscience LLC
    Inventors: Thomas Faecke, Ramesh Subramanian, James W. Rawlins, Eric J. Vidra
  • Publication number: 20040236021
    Abstract: A solid isocyanate-based composition having a glass transition temperature of at least 30° C. is produced by at least partially blocking the isocyanate groups of a polyisocyanate with a compound corresponding to the specified Formula I. This blocked isocyanate composition is useful in the production of powder coatings which are capable of being cured at temperatures of from 80 to 220° C.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Inventors: Thomas Faecke, Ramesh Subramanian, James W. Rawlins, Eric J. Vidra