Patents by Inventor Lillian A. Buan

Lillian A. Buan 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: 8053048
    Abstract: A polymer blend comprising a high density polyethylene and a surface enhancing polymer is provided. The surface enhancing polymer may be an elastomer such as an ethylene propylene diene monomer terpolymer. The polymer blend may be fabricated into articles such as a film or a flexible overpouch for storing, and transporting medical components. Overpouch films made from the blend advantageously do not wrinkle or deform medical components contained therein when the overpouch—medical component combination is autoclaved.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 8, 2011
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Michael T. K. Lang, Angeles Lillian Buan, Teresa L. White, Varsha Kalyankar, Gregg Nebgen, Scott Edwards, Kuo Zong Hong
  • Patent number: 6881790
    Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency (“RF”) susceptible polymer; a compatibilizing polymer; the composition having physical properties within a range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25 to 250° C. of the composition; h sample creep measured at 121° C.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 19, 2005
    Assignee: Baxter International, Inc.
    Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 6399704
    Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency (“RF”) susceptible polymer; and a compatibilizing polymer.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 4, 2002
    Assignee: Baxter International Inc.
    Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 6261655
    Abstract: A multiple layer structure comprising a skin layer composed of a polypropylene copolymer with styrene ethylene-butene styrene block copolymer within a range of 0-20% by weight skin layer, and, a radio frequency (“RF”) susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent wherein the radio frequency susceptible polymer is selected from the group consisting of ethylene acrylic acid copolymers, ethylene methacrylic acid copolymers, polyimides, polyurethanes, polyesters, and polyureas.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: July 17, 2001
    Assignee: Baxter International Inc.
    Inventors: Larry A. Rosenbaum, William Anderson, Lecon Woo, Dean Laurin, Angeles Lillian Buan, Michael T. K. Ling, Yuan Pang Samuel Ding, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 6168862
    Abstract: A multiple layer structure comprising a skin layer composed of a polypropylene copolymer with styrene ethylene-butene styrene block copolymer within a range of 0-20% by weight skin layer, and, a radio frequency (“RF”) susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: January 2, 2001
    Assignee: Baxter International Inc.
    Inventors: Larry A. Rosenbaum, William Anderson, Lecon Woo, Dean Laurin, Angeles Lillian Buan, Michael T. K. Ling, Yuan Pang Samuel Ding, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 5998019
    Abstract: A multiple layer structure comprising a skin layer composed of a polypropylene copolymer with styrene ethylene-butene styrene block copolymer within a range of 0-20% by weight skin layer, and, a radio frequency ("RF") susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: December 7, 1999
    Assignee: Baxter International Inc.
    Inventors: Larry A. Rosenbaum, William Anderson, Lecon Woo, Dean Laurin, Angeles Lillian Buan, Michael T.K. Ling, Yuan Pang Samuel Ding, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 5854347
    Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency ("RF") susceptible polymer; a compatibilizing polymer; the composition having physical properties within the range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25.degree. to 250.degree. C.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 29, 1998
    Assignee: Baxter International Inc.
    Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 5849843
    Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency ("RF") susceptible polymer; a compatibilizing polymer; the composition having physical properties within the range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25.degree. to 250.degree. C.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: December 15, 1998
    Assignee: Baxter International Inc.
    Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 5840146
    Abstract: The coating of a RF active material on a non-RF active substrate material of typical thickness for packaging purposes, can generate sufficient thermal energy to effect strong bonding of the substrate materials. The RF active material may be-deposited on less than the entire inner surface area of the substrate material, preferably, at or near the portion of the substrate surface which represents the heat seal interface. In this manner of application, additional coating or printing of other substances on the substrate surface can be achieved without hampering the heat sealing process. Flexible medical containers capable of containing a product which is maintained and removed under sterile conditions, can be constructed on commercial production machines from these coated non-RF active substrate materials.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 24, 1998
    Assignee: Baxter International Inc.
    Inventors: Lecon Woo, Ying Lo, Michael T. K. Ling, Dean Laurin, Byron Gleason, Lillian A. Buan, William D. Johnston
  • Patent number: 5686527
    Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency ("RF") susceptible polymer; a compatibilizing polymer; the composition having physical properties within the range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25.degree. to 250.degree. C.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 11, 1997
    Assignee: Baxter International Inc.
    Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
  • Patent number: 5645904
    Abstract: The coating of a RF active material on a non-RF active substrate material of typical thickness for packaging purposes, can generate sufficient thermal energy to effect strong bonding of the substrate materials. The RF active material may be deposited on less than the entire inner surface area of the substrate material, preferably, at or near the portion of the substrate surface which represents the heat seal interface. In this manner of application, additional coating or printing of other substances on the substrate surface can be achieved without hampering the heat sealing process. Flexible medical containers capable of containing a product which is maintained and removed under sterile conditions, can be constructed on commercial production machines from these coated non-RF active substrate materials.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: July 8, 1997
    Assignee: Baxter International Inc.
    Inventors: Lecon Woo, Ying Lo, Michael T. K. Ling, Dean Laurin, Byron Gleason, Lillian A. Buan, William D. Johnston
  • Patent number: 5643501
    Abstract: An additive system for a polyvinyl chloride formulation for improved processability while maintaining thermal stability of the formulation, and having a low-water-blush haze and low extractability in an aqueous media, the additive system including a primary stabilizer which is a Lewis acid metal compound selected from the group consisting of organo-tin compounds and organo-zinc compounds, a secondary stabilizer selected from the group consisting of epoxide compounds having less than approximately 5.2 oxirane groups per molecule; and, an external lubricant for lubrication of the PVC formulation, wherein a critical ratio of the primary stabilizer to the secondary stabilizer maximizes thermolytic color stability while limiting generation of excessive build-up, plate-out, dark particles during the processing of the polyvinyl chloride formulation.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: July 1, 1997
    Assignee: Baxter International Inc.
    Inventors: Angeles Lillian Buan, Dean Laurin