Patents by Inventor R. Richard Sargent

R. Richard Sargent 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: 7029553
    Abstract: The present invention relates to the use of urea sulfate or urea hydrochloride, or both, in process streams in the paper and pulping industries to control pH, to bring about flocculation or precipitation of various materials, and to replace all or part of the sulfuric acid, hydrochloric acid, and/or papermaking alum used in the paper and pulping industries.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: April 18, 2006
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, R. Richard Sargent
  • Publication number: 20030038085
    Abstract: The present invention relates to methods for lowering the pH of leather processing solutions by adding a pH reduction agent that is urea sulfate, urea hydrochloride, triethanolamine hydrochloride, or triethanolamine sulfate as a replacement for conventional pH lowering acids, such as sulfuric acid, formic acid, acetic acid, etc. The invention may be used with respect to any leather processing step that requires pH adjustment, including deliming, pickling, tanning, dyeing, finishing, and retanning. The pH lowering method of the invention results in safer handling, more environmentally acceptable effluents, and decreased corrosion of process equipment.
    Type: Application
    Filed: June 28, 2002
    Publication date: February 27, 2003
    Inventors: R. Richard Sargent, Jeffrey Randolph Alender, Thomas Hudson Moss
  • Patent number: 6524492
    Abstract: The invention relates to an exhaustion agent, which is an aqueous emulsion of polymerized monomers, wherein the monomers contain: (meth)acrylic acid (MAA); alkyl (meth)acrylate, such as methyl (meth)acrylate (MMA); and a substituted or unsubstituted styrene; and having an average particle size of the emulsified particles is less than about 220 nm.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: February 25, 2003
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, R. Richard Sargent
  • Publication number: 20020151644
    Abstract: The invention relates to an exhaustion agent, which is an aqueous emulsion of polymerized monomers, wherein the monomers contain:
    Type: Application
    Filed: December 28, 2000
    Publication date: October 17, 2002
    Inventors: Michael S. Williams, R. Richard Sargent
  • Publication number: 20010045393
    Abstract: The present invention relates to methods for lowering the pH of leather processing solutions by adding a pH reduction agent that is urea sulfate, urea hydrochloride, triethanolamine hydrochloride, or triethanolamine sulfate as a replacement for conventional pH lowering acids, such as sulfuric acid, formic acid, acetic acid, etc. The invention may be used with respect to any leather processing step that requires pH adjustment, including deliming, pickling, tanning, dyeing, finishing, and retanning. The pH lowering method of the invention results in safer handling, more environmentally acceptable effluents, and decreased corrosion of process equipment.
    Type: Application
    Filed: May 1, 1997
    Publication date: November 29, 2001
    Inventors: R. RICHARD SARGENT, JEFFREY RANDOLPH ALENDER, THOMAS HUDSON MOSS
  • Patent number: 5919375
    Abstract: The present invention relates to a method for adjusting the pH of water in swimming pools or hot tubs or in drinking water by adding to the water an effective amount of a salt of urea and hydrochloric acid.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: July 6, 1999
    Inventors: R. Richard Sargent, Jeffrey Randolph Alender
  • Patent number: 5733463
    Abstract: A method for the adjustment of pH in textile processing or other solutions, including recreational waters, that includes the use of urea sulfate or its equivalent.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: March 31, 1998
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey Randolph Alender
  • Patent number: 5672279
    Abstract: A method to remove the build-up of water-insoluble metal salts on surfaces, and a method to lower the solids content of industrial liquids that contain water-insoluble metal salts using urea hydrochloride or its equivalent. Also disclosed is a method to use urea hydrochloride or an equivalent strong acid/weak base salt as acid replacements for a variety of purposes.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: September 30, 1997
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey Randolph Alender, Thomas Hudson Moss, III
  • Patent number: 5629376
    Abstract: Novel polyacrylic acid resins are prepared by polymerizing a monomer selected from the group consisting of H.sub.2 C.dbd.CHCO.sub.2 X, H.sub.2 C.dbd.CR.sup.1 CO.sub.2 X, HR.sup.2 C.dbd.CHCO.sub.2 X, HR.sup.2 C.dbd.CR.sup.1 CO.sub.2 X, HR.sup.2 C.dbd.CHCOX, H.sub.2 C.dbd.CHCOX, H.sub.2 C.dbd.CR.sup.1 COX, HR.sup.2 C.dbd.CR.sup.1 COX, H.sub.2 C.dbd.CHCSO.sub.v X, HR.sup.2 C.dbd.CHCSO.sub.v X, HR.sup.2 C.dbd.CR.sup.1 CSO.sub.v X, H.sub.2 C.dbd.CR.sup.1 CSO.sub.v X, H.sub.2 C.dbd.CHCON(R.sup.3).sub.2, HR.sup.2 C.dbd.CHCON(R.sup.3).sub.2, H.sub.2 C.dbd.CR.sup.1 CON(R.sup.3).sub.2, OR HR.sup.2 C.dbd.CR.sup.1 CON(R.sup.3).sub.2, or a combination thereof, in the presence of at least 10% by weight of reaction components of an aromatic sulfonic acid or its salt, wherein:R.sup.1 and R.sup.2 are independently a substituted or unsubstituted alkyl, alkenyl, aromatic, aralkyl or alkaryl moiety of C.sub.1 to C.sub.20 ;R.sup.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: May 13, 1997
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Michael S. Williams, Thomas H. Moss, III, Jeffrey R. Alender
  • Patent number: 5616151
    Abstract: A method for the adjustment of pH in textile processing solutions that includes the use of urea sulfate or other strong acid in the presence of a weak base.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: April 1, 1997
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey R. Alender
  • Patent number: 5560992
    Abstract: Permanently soil resistant polymeric compositions that have fluorochemical dispersed throughout the polymer are prepared by melt extrusion of the fluorochemical with the desired polymer. Preferred polymers for extrusion with the fluorochemical are polyester, polypropylene, polyethylene, and polyamide.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 1, 1996
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey R. Alender
  • Patent number: 5459188
    Abstract: Permanently soil resistant polymeric compositions that have fluorochemical dispersed throughout the polymer are prepared by melt extrusion of the fluorochemical with the desired polymer. Preferred polymers for extrusion with the fluorochemical are polyester, polypropylene, polyethylene, and polyamide.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: October 17, 1995
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey R. Alender
  • Patent number: 5234466
    Abstract: A method for the adjustment of pH in textile processing solutions that includes the use of urea sulfate or other strong acid in the presence of a weak base.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: August 10, 1993
    Assignee: Peach State Labs, Inc.
    Inventors: R. Richard Sargent, Jeffrey R. Alender