Patents by Inventor Dave A. Soerens

Dave A. Soerens 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: 6905759
    Abstract: The present invention is directed to biodegradable films and biodegradable precursor films having enhanced breathability and ductility. The films contain a biodegradable polymer and a water soluble polymer. The biodegradable polymer is preferably polycaprolactone, and the water soluble polymer is preferably polyethylene oxide. The precursor film of the present invention preferably has a water vapor transmission rate of at least 500 g/24 hrs/m2. The biodegradable film of the present invention preferably has a water vapor transmission rate of at least 2500 g/24 hrs/m2.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 14, 2005
    Assignee: Kimberly Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Dave A. Soerens
  • Publication number: 20050079637
    Abstract: A wearable article equipped with a multi-level alert system detects and emits signals corresponding to various abnormal levels of a substance in a mammalian extract. By providing different signals corresponding to multiple abnormal levels of the substance, the wearer is simultaneously alerted to the existence of an abnormality, and informed of the level of severity.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 14, 2005
    Inventors: Hoa Wilhelm, Dave Soerens, Lee Wilhelm, James Wang
  • Patent number: 6872275
    Abstract: A process for forming an absorbent fibrous web composite includes the initial step of forming a fibrous web from hydrophilic fibers and, optionally, thermoplastic fibers. Then, a superabsorbent polymer is completely formed in situ on or in the fibrous web by adding one or more superabsorbent polymer precursor compositions to the fibrous web using a non-contact process, and performing the polymerization reaction(s) completely on or in the web.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: March 29, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Young C. Ko, Stanley R. Kellenberger, David Martin Jackson, Dave A. Soerens, Jason M. Laumer, Sridhar Ranganathan
  • Publication number: 20050054784
    Abstract: Superabsorbent material treated to resist damage when subjected to an Absorbent Product Processing Simulation Test, which simulates the mechanical damage that occurs during current commercial diaper manufacturing processes. The treated superabsorbent material has a centrifuge retention capacity of about 15 grams or greater of 0.9 weight percent sodium chloride per gram of the superabsorbent material and a gel bed permeability (GBP) at 0 psi swell pressure on pre-screened particles of about 200 (×10?9 cm2) or greater. After subjecting the treated superabsorbent material to the Absorbent Product Processing Simulation Test, the treated superabsorbent may exhibit minimal reduction in GBP of pre-screened or un-screened particles at 0 psi or at 0.3 psi swell pressure, as well as possibly exhibiting minimal reduction in average particle size diameter (PSD).
    Type: Application
    Filed: September 5, 2003
    Publication date: March 10, 2005
    Inventors: Jian Qin, Kenneth Schueler, Hoa Wilhelm, Dave Soerens
  • Publication number: 20040255362
    Abstract: The present invention is directed to breathable elastomeric gloves. The gloves of the present invention may allow the transmission of water vapor while still providing an effective barrier to virus, bacteria, contaminants, bodily fluids, and the like. In general, a breathability additive may be incorporated into the polymer matrix of one or more layers of the glove to improve the breathability of the layer. For example, polyethylene oxide may be incorporated into a layer as a breathability additive.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 23, 2004
    Inventors: Dave A. Soerens, Thomas Gregory Triebes, Kermit R. Littleton
  • Patent number: 6815502
    Abstract: The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: November 9, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frederick J. Lang, Kelly D. Branham, Franklin M. Chen, Eric D. Johnson, Jeffrey D. Lindsay, Kim G. Schick, Walter T. Schultz, Tong Sun, Yihua Chang, Pavneet S. Mumick, William S. Pomplun, Dave A. Soerens, Kenneth Y. Wang
  • Patent number: 6773797
    Abstract: Breathable, flushable, porous films and articles made therewith and a process for making these films. The present invention is directed to composites comprising a polymer that is water-soluble or water-degradable and a filler. The films are made by extruding the composite materials into a precursor film and, preferably, stretching the precursor film to achieve the desired breathability and water-dispersibility of the finished film. In one embodiment, the composition of the invention comprises a polymer of ethylene oxide and a filler such as calcium carbonate.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: August 10, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James H. Wang, David M. Schertz, Dave A. Soerens, Vasily A. Topolkaraev
  • Patent number: 6772443
    Abstract: The present invention is directed to breathable elastomeric gloves. The gloves of the present invention may allow the transmission of water vapor while still providing an effective barrier to virus, bacteria, contaminants, bodily fluids, and the like. In general, a breathability additive may be incorporated into the polymer matrix of the or more layers of the glove to improve the breathability of the layer. For example, polyethylene oxide may be incorporated into a layer as a breathability additive.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: August 10, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Dave A. Soerens, Thomas Gregory Triebes, Kermit R. Littleton
  • Publication number: 20040123374
    Abstract: The present invention is directed to breathable elastomeric gloves. The gloves of the present invention may allow the transmission of water vapor while still providing an effective barrier to virus, bacteria, contaminants, bodily fluids, and the like. In general, a breathability additive may be incorporated into the polymer matrix of one or more layers of the glove to improve the breathability of the layer. For example, polyethylene oxide may be incorporated into a layer as a breathability additive.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Dave A. Soerens, Thomas Gregory Triebes, Kermit R. Littleton
  • Publication number: 20040121158
    Abstract: Base sheets are disclosed having a reduced coefficient of friction in the wet state. In accordance with the present invention, the base sheets can be treated with a high molecular weight polyethylene oxide, a derivatized polyethylene oxide or an acrylate copolymer containing polyethylene moieties. The base sheet can be single ply or multi-ply. The base sheet can be a tissue product, such as a facial tissue, a bath tissue, or a paper towel. Alternatively, the base sheet can be a pre-moistened wipe.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Tom G. Shannon, Dave Soerens
  • Patent number: 6713414
    Abstract: The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: March 30, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: William S. Pomplun, Franklin M. Chen, Paige A. Dellerman, Eric D. Johnson, Jeffrey D. Lindsay, Ligia A. Rivera, Kim G. Schick, Walter T. Schultz, Varsha K. Shah, Dave A. Soerens, Kenneth Y. Wang, Frederick J. Lang, Yihua Chang, David M. Jackson, Pavneet S. Mumick
  • Publication number: 20040019339
    Abstract: In an absorbent article, layers or webs of absorbent materials are adhered into a composite to constitute a primary liquid retention layer with improved liquid handling properties. The layers are held together by a discontinuous application of absorbent adhesive in order to improve the fluid intake rate of the composite without sacrifice of overall volume of liquid retention. Control of the viscosity, e.g., concentration of solids, of the liquid absorbent adhesive is taught so as to make its application to, and the drying of, the composite layers practical and efficacious while improving the fluid intake of the absorbent liquid retention layer.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: Sridhar Ranganathan, Dave A. Soerens, Gabriel H. Adam
  • Patent number: 6683143
    Abstract: The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: January 27, 2004
    Assignee: Kimberly Clark Worldwide, Inc.
    Inventors: Pavneet S. Mumick, Yihua Chang, Franklin M. Chen, Frederick J. Lang, Kim G. Schick, Walter T. Schultz, William S. Pomplun, Dave A. Soerens, Kenneth Y. Wang
  • Patent number: 6664436
    Abstract: The present invention relates to shape deformable materials, which are capable of (1) being deformed, (2) storing an amount of shape deformation, and (3) recovering at least a portion of the shape deformation when exposed to a humid environment. The shape deformable materials can advantageously be in the form of films, fibers, filaments, strands, nonwovens, and pre-molded elements. The shape deformable materials of the present invention may be used to form products, which are both disposable and reusable. More specifically, the shape deformable materials of the present invention may be used to produce products such as disposable diapers, training pants, incontinence products, and feminine care products.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: December 16, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Dave A. Soerens
  • Patent number: 6660211
    Abstract: The present invention is directed to methods of making biodegradable films and biodegradable precursor films having enhanced breathability and ductility. The method includes blending a water soluble polymer and a biodegradable polymer to form a blended polymer mixture. The biodegradable polymer is preferably a biodegradable aliphatic polyester, and the water-soluble polymer is preferably polyethylene oxide and/or polyethylene glycol. The blended polymer mixture is formed into a precursor film. The precursor film is further processed to form a breathable biodegradable film.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: December 9, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Dave A. Soerens
  • Patent number: 6653406
    Abstract: A method of making an ion-sensitive composition is disclosed. The method of the present invention comprises dispersing in a sulfonate anion modified acrylic acid-based polymer a non-crosslinking poly(ethylene-vinyl acetate). The ion sensitive compositions made by the method of the present invention have differing solubilities in neutral salt solutions containing at least about 1 weight percent of one or more monovalent salt ions and water containing up to about 200 ppm of one or more multivalent ions.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: November 25, 2003
    Assignee: Kimberly Clark Worldwide, Inc.
    Inventors: Dave A. Soerens, Yihua Chang, William S. Pomplun, Franklin M. C. Chen, Frederick J. Lang, Pavneet S. Mumick
  • Patent number: 6645407
    Abstract: A process for making an absorbent composite including absorbent fibers, superabsorbent polymer and, optionally, thermoplastic fibers and other ingredients is provided. The synthesis (i.e., polymerization) of the superabsorbent is completely integrated into the process for forming the absorbent composite. Specifically, the polymerization of superabsorbent is initiated from within a plurality of absorbent and/or thermoplastic fibers, which are then formed into a web. The integrated process eliminates the need for separate manufacture of superabsorbent polymer prior to the fiber forming and web forming processes. Also, the superabsorbent polymer thus formed tends to disperse better and remain adhered to the absorbent and/or thermoplastic fibers, providing a stable and uniform absorbent composite for various end use applications.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: November 11, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stanley R. Kellenberger, David Martin Jackson, Young C. Ko, Dave A. Soerens, Jason M. Laumer, Sridhar Ranganathan
  • Patent number: 6627673
    Abstract: The present invention relates to shape deformable materials, which are capable of (1) being deformed, (2) storing an amount of shape deformation, and (3) recovering at least a portion of the shape deformation when exposed to a humid environment. The shape deformable materials can advantageously be in the form of films, fibers, filaments, strands, nonwovens, and pre-molded elements. The shape deformable materials of the present invention may be used to form products, which are both disposable and reusable. More specifically, the shape deformable materials of the present invention may be used to produce products such as disposable diapers, training pants, incontinence products, and feminine care products.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: September 30, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Dave A. Soerens
  • Publication number: 20030162013
    Abstract: The present invention is directed to personal care products comprising biodegradable films. The biodegradable films display enhanced breathability and ductility, and contain a biodegradable polymer and a water soluble polymer. The biodegradable polymer is preferably a biodegradable aliphatic polyester, and the water soluble polymer is preferably polyethylene oxide, polyethylene glycol, or a copolymer thereof. The biodegradable film of the present invention has a water vapor transmission rate of at least 2500 g/m2/24 hrs.
    Type: Application
    Filed: April 23, 2001
    Publication date: August 28, 2003
    Inventors: Vasily A. Topolkaraev, Dave A. Soerens
  • Patent number: 6610793
    Abstract: A method for making modified poly(ethylene oxide) by graft polymerizing thereto organic monomers containing a trialkoxy silane functional group or a moiety that reacts with water to form a silanol group, such as methacryloxypropyl trimethoxy silane, onto the poly(ethylene oxide) is disclosed. The graft polymerization is accomplished by mixing the poly(ethylene oxide), the silane-containing monomer(s) and an initiator and applying heat. Preferably, the method is a reactive-extrusion process. The resulting modified poly(ethylene oxide) has improved water absorption characteristics and melt processabilities and may be used to make thermally processed articles, such as fibers, films and foams, that have improved properties over articles similarly processed from unmodified poly(ethylene oxide).
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: August 26, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Dave A. Soerens, Eric D. Johnson, Gregory J. Wideman, James Hongxue Wang