Patents Represented by Attorney Nancy M. Lambert
  • Patent number: 6903151
    Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: June 7, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Dong-Wei Zhu
  • Patent number: 6903243
    Abstract: A multi-layer wound dressing comprising at least two absorbent layers, and materials for forming absorbent layers are provided. The absorbent layers have different absorbencies, with the layer closest to the wound having a lower absorbency than the layer furthest from the wound. The wound dressing typically contains additional non-absorbing layers, such as a backing film and wound-facing film. The dressing provides absorbency of wound exudates while preventing the absorbent material from entering the wound. In specific implementations the dressing is substantially transparent prior to application to a wound, as well as after application to the wound when body fluids have been absorbed.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: June 7, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Scott A. Burton
  • Patent number: 6883908
    Abstract: Methods, systems, and compositions that make it possible to form high resolution, pressure sensitive adhesive patterns or films on a wide range of substrates. The compositions generally incorporate a curable, fluid composition (i.e., pressure sensitive adhesive precursor). When cured, a pressure sensitive adhesive is formed. Ink jet printing and subsequent curing allows pressure sensitive adhesive features to be formed with high resolution and tremendous flexibility in the patterns by which adhesive features may be formed. Preferred embodiments of the invention incorporate rheology modifying agents that can be used to promote favorable dot gain and other printing characteristics, the ability to build print thickness, and mechanical properties of resultant cured adhesives.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: April 26, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: James K. Young, Brant U. Kolb, Albert I. Everaerts, Kevin M. Eliason, Diana M. Eitzman, Kejian Chen, John P. Banovetz, Gregory J. Anderson
  • Patent number: 6881875
    Abstract: The present invention provides medical articles, such as wound dressings. In one embodiment, the medical article includes a backing, an absorbent foam, and a fibrous adhesive disposed between the backing and the absorbent foam, wherein the backing includes a liquid-impervious, moisture-vapor permeable polymeric film. In another embodiment, the medical article includes a backing, an absorbent, substantially nonswellable foam, and an adhesive disposed therebetween. In yet another embodiment, the medical article includes a backing, a foam, and a fibrous adhesive disposed therebetween.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: April 19, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Mary M. Swenson
  • Patent number: 6838142
    Abstract: A pressure sensitive adhesive layer with a structured surface, wherein the adhesive layer is capable of being dry laminated to a substrate to form a laminate. The adhesive layer has a haze after lamination, measured according to ASTM D 1003-95, of less than about 50% of the haze of the adhesive layer before lamination. After dry lamination, the adhesive layer has a luminous transmittance of more than about 85%, a haze of less than about 25%, and an opacity of less than about 3%.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Jie Yang, Mieczyslaw H. Mazurek, Patrick R. Fleming, Larry A. Meixner, Haruyuki Mikami
  • Patent number: 6838589
    Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne L. Liedtke, Richard L. Jacobson
  • Patent number: 6838078
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
  • Patent number: 6835256
    Abstract: A laminated composite suitable for use in medical products such as tapes and wraps. The composite includes, for example, a first nonwoven fiber layer, an elastic layer, a melt blown adhesive fiber layer, and a second nonwoven fiber layer. A scrim layer serves as a deadstop, or stretch limit, to prevent over stretching. The non-woven fiber layer(s) and/or the scrim layer form suitable loops for a hook and loop fastening system. The scrim layer in some embodiments is employed to make the composite finger tearable. The melt blown adhesive layer, nonwoven web layer and elastic layer form a breathable, porous elastic composite. Methods of manufacturing the composite are also disclosed.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: December 28, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Robert H. Menzies, Jason L. Edgar, Scott J. Tuman, David L. Seidel, Robert J. Maki, John E. Riedel, Eugene G. Joseph, Leon Levitt, Brandon T. Berg
  • Patent number: 6762339
    Abstract: Polypropylene fibers and devices that include a fatty acid monoglyceride added to the polypropylene as a melt additive are described. A hydrophilic enhancer material can be advantageously added to the polypropylene as a melt additive to enhance the hydrophilicity of the fibers and devices. An antimicrobial enhancer material can be added to the fibers to enhance the antimicrobial activity.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: July 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Wayne K. Dunshee, Kevin R. Schaffer, Jeffrey F. Andrews, Debra M. Neu, Matthew T. Scholz
  • Patent number: 6756225
    Abstract: Thin film culture devices are described that have positioning structures, as well as methods for harvesting cells from colonies on the culture device based on location of colonies on the device relative to the positioning structures. In addition, a computer readable medium encoded with a computer program is described that identifies position of colonies relative to the positioning structures.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 29, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: William Bedingham, Raj Rajagopal, Michael G. Williams
  • Patent number: 6742522
    Abstract: A surgical incise drape comprising a flexible film having a leading edge and a trailing edge, and a film handle applied at the leading edge of the flexible film. A liner substantially covers the major portion of the flexible film, which is coated with an adhesive. The liner may include a liner handle at the leading edge, and one of the liner handle and film handle are of a size for wrapping about at least a portion of the drape when the drape is in a folded configuration. A tensioning strip may be applied to the liner at a position away from the leading edge of the liner to hold at least a portion of the flexible film lying between the film handle and the tensioning strip in a wrinkle-free state when the liner is being removed from the major portion of the flexible film. Further, the liner may be stiff relative to the flexible film such that the liner and the film handle hold the flexible film in a wrinkle-free state when the liner is being removed from the major portion of the flexible film.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: June 1, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Dennis L. Baker, John E. Bruno, Patricia A. Eull, Dietmar Schlei, Matthew T. Scholz
  • Patent number: 6737266
    Abstract: A device that includes at least two chambers separated by an activatable seal wherein upon activation of the seal the two chambers are in communication, and further wherein at least one chamber of the device includes a biological assay reagent and methods of using same.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: May 18, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: James H. Wicks, Carl A. Adams, Gary E. Krejcarek
  • Patent number: 6734256
    Abstract: Hot-melt processable adhesive, such as pressure-sensitive-adhesive (PSA) or heat-activatable adhesive, compositions of the present invention possess a broad formulation latitude and adequate cohesive strength after application for use in high performance applications. Hot-melt processable adhesives of the invention comprise at least one block copolymer comprising at least two A blocks and at least one B block. The A and B blocks are derived from monoethylenically unsaturated monomers, which monomers result in saturated polymer backbones without the need for subsequent hydrogenation upon their polymerization. Preferably, the block copolymer is a (meth)acrylate block copolymer.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: May 11, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Albert I. Everaerts, JingJing Ma, Francois C. D'Haese
  • Patent number: 6716186
    Abstract: Curable adhesive splints, methods of manufacturing the splints and methods of using the splints are disclosed. The splints include a curable splinting layer and an exposed pressure sensitive adhesive proximate a first major side of the splinting layer. The pressure sensitive adhesive is used to secure the curable layer in position to provide the desired immobilization. The curable splinting layer may be of any material that can be shaped and cured to provide the desired level of stiffness required for immobilization, such as, e.g., moisture-curable splinting material, etc. The curable adhesive splints may be molded or formed to a desired shape while still providing the stiffness required for immobilization after curing.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: April 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Balbir Singh, Lim Fang Pek, Kurt Allenberg
  • Patent number: 6696286
    Abstract: A method for detecting a microorganism in a test sample is described. The method involves distributing microvolumes of a sample to a plurality of microcompartments of a culture device, incubating for a time sufficient to permit at least one cell division cycle of the microorganism, then detecting the presence or absence of the microorganism in the microcompartments. Also disclosed are devices for carrying out these methods.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: February 24, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kurt J. Halverson, Ai-Ping Wei, Jean Qiu, Clyde D. Calhoun, James G. Berg, James G. Bentsen, Raymond P. Johnston
  • Patent number: 6685682
    Abstract: A carrier delivered dressing which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and a low adhesion coating on a top face. The backing is supported during shipping and handling by a liner attached to the adhesive and a removable heat sealed carrier attached to the top face of the backing. The method according to the present invention discloses the steps of forming and optionally removing windows in a carrier material and nonpermanently heat sealing the carrier to the backing to form the dressings of the present invention.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: February 3, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Steven B. Heinecke, Donald G. Peterson
  • Patent number: 6680113
    Abstract: A highly moisture vapor transmissive adhesive composite is disclosed comprising at least three layers, a polymeric backing layer, a high moisture vapor transmission layer, and a skin contacting adhesive layer. The high moisture vapor transmission layer may be made from a polymeric backing material, an adhesive material or both.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: January 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Steven B. Heinecke
  • Patent number: D503229
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: March 22, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Robert A. Davis, Mark V. Johnson, Triet M. Lu, Matthew T. Scholz
  • Patent number: D503982
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: April 12, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne L. Liedtke, Richard L. Jacobson
  • Patent number: D493230
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: July 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne L. Liedtke, Richard L. Jacobson, David R. Holm