Patents by Inventor Sara B. Mortenson

Sara B. Mortenson 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: 7094463
    Abstract: The present invention is directed to a process for producing a polypropylene foam by mixing a high melt strength polypropylene and a blowing agent to form a melt mixture, reducing the temperature of the melt mixture at the exit of the apparatus to an exit temperature that is no more than 30° C. above the melt temperature of the neat polypropylene while maintaining the melt mixture at a pressure sufficient to prevent foaming; passing the mixture through said exit shaping orifice and exposing the mixture to atmospheric pressure, whereby the blowing agent expands causing cell formation resulting in foam formation, and orienting said foam. The foam is useful as tape backings, thermal and acoustical insulation and as a diffuse reflector for use in optical applications such as computer displays.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: August 22, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher K. Haas, Mark D. Gehlsen, Sara B. Mortenson, Joan M. Strobel, Ravi K. Sura, David L. Vall
  • Patent number: 6803090
    Abstract: The invention provides an assembly for the control and removal of fluids, the assembly comprising: A fluid control layer having a top side and a bottom side, the top side constructed to facilitate the evaporation or the flow of a fluid disposed thereon; a fire retardant material having a first major surface and a second major surface, the first major surface associated with the bottom side of the fluid control layer, the fire retardant material comprising a polymer; and an adhesive layer associated with the second major surface of the fire retardant material. A fluid management system for aircraft and a method for the use of the system in aircraft are also described.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 12, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Stephanie B. Castiglione, Sara B. Mortenson, Raymond P. Johnston, James J. Kobe, Timothy N. Narum, Rodger J. Pereyra, Thomas L. Tompkins, Zhiming Zhou
  • Patent number: 6746567
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart protrusions. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 8, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione
  • Publication number: 20030211310
    Abstract: The present invention is directed to a process for producing a polypropylene foam by mixing a high melt strength polypropylene and a blowing agent to form a melt mixture, reducing the temperature of the melt mixture at the exit of the apparatus to an exit temperature that is no more than 30° C. above the melt temperature of the neat polypropylene while maintaining the melt mixture at a pressure sufficient to prevent foaming; passing the mixture through said exit shaping orifice and exposing the mixture to atmospheric pressure, whereby the blowing agent expands causing cell formation resulting in foam formation, and orienting said foam. The foam is useful as tape backings, thermal and acoustical insulation and as a diffuse reflector for use in optical applications such as computer displays.
    Type: Application
    Filed: November 7, 2002
    Publication date: November 13, 2003
    Inventors: Christopher K. Haas, Mark D. Gehlsen, Sara B. Mortenson, Joan M. Strobel
  • Publication number: 20030211291
    Abstract: The invention provides an assembly for the control and removal of fluids, the assembly comprising: A fluid control layer having a top side and a bottom side, the top side constructed to facilitate the evaporation or the flow of a fluid disposed thereon; a fire retardant material having a first major surface and a second major surface, the first major surface associated with the bottom side of the fluid control layer, the fire retardant material comprising a polymer; and an adhesive layer associated with the second major surface of the fire retardant material. A fluid management system for aircraft and a method for the use of the system in aircraft are also described.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 13, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Stephanie B. Castiglione, Sara B. Mortenson, Raymond P. Johnston, James J. Kobe, Timothy N. Narum, Rodger J. Pereyra, Thomas L. Tompkins, Zhiming Zhou
  • Publication number: 20030104169
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart protrusions. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 5, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione
  • Publication number: 20030105176
    Abstract: The present invention is directed to a process for producing a polypropylene foam by mixing a high melt strength polypropylene and a blowing agent to form a melt mixture, reducing the temperature of the melt mixture at the exit of the apparatus to an exit temperature that is no more than 30° C. above the melt temperature of the neat polypropylene while maintaining the melt mixture at a pressure sufficient to prevent foaming; passing the mixture through said exit shaping orifice and exposing the mixture to atmospheric pressure, whereby the blowing agent expands causing cell formation resulting in foam formation, and orienting said foam. The foam is useful as tape backings, thermal and acoustical insulation and as a diffuse reflector for use in optical applications such as computer displays.
    Type: Application
    Filed: December 30, 2002
    Publication date: June 5, 2003
    Inventors: Christopher K. Haas, Mark D. Gehlsen, Sara B. Mortenson, Joan M. Strobel, Ravi K. Sura, David L. Vall
  • Publication number: 20030102076
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart protrusions. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 5, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione
  • Publication number: 20030104170
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart protrusions. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 5, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione
  • Patent number: 6531206
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart protrusions. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: March 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione
  • Publication number: 20020146540
    Abstract: A film or tape has one of its major surfaces defined by microstructured features including a plurality of channels defined by spaced apart ridges. The microstructured film is able to acquire liquids and to control the directional transport of such liquids for subsequent removal therefrom. The transport can be passive or active (i.e., caused or enhanced by an applied potential). The inventive microstructured films and tapes have applications in laminate floor assemblies (for spill removal) and industrial articles such as computer keyboards and other devices and assemblies that benefit from fluid removal. The invention also has application in evaporative and condensation applications. In one embodiment, at least one cross-channel is formed on the microstructured surface to join adjacent channels for liquid flow therebetween.
    Type: Application
    Filed: February 7, 2001
    Publication date: October 10, 2002
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raymond P. Johnston, Sara B. Mortenson, Douglas A. Huntley, Stephanie B. Castiglione