Patents by Inventor Rosa Uy

Rosa Uy 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: 6709716
    Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: March 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Rosa Uy, Chung I Young
  • Publication number: 20020188035
    Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.
    Type: Application
    Filed: April 27, 2001
    Publication date: December 12, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Rosa Uy, Chung I Young
  • Patent number: 5952398
    Abstract: A polymerized microemulsion pressure sensitive adhesive composition is described. The composition has peel adhesion of at least 3 Newtons/100 mm as measured according to a PSTC-1 Test. The composition preferably has a bicontinuous structure of a continuous phase of a hydrophobic pressure sensitive adhesive polymer and a continuous phase of a hydrophilic polymer. The bulk properties of both polymers are retained in the bicontinuous structure. The composition is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar amphiphilic or hydrophilic monomer or oligomer in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer, having a glass transition temperature suitable for forming a pressure sensitive adhesive, in the oil phase, water, and surfactant.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: September 14, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy M. Dietz, Ying-Yuh Lu, Rosa Uy, Chung I. Young
  • Patent number: 5853750
    Abstract: A polymerized microemulsion pressure sensitive adhesive composition is described. The composition has peel adhesion of at least 3 Newtons/100 mm as measured according to a PSTC-1 Test. The composition preferably has a bicontinuous structure of a continuous phase of a hydrophobic pressure sensitive adhesive polymer and a continuous phase of a hydrophilic polymer. The bulk properties of both polymers are retained in the bicontinuous structure. The composition is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar amphiphilic or hydrophilic monomer or oligomer in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer, having a glass transition temperature suitable for forming a pressure sensitive adhesive, in the oil phase, water, and surfactant.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy M. Dietz, Ying-Yuh Lu, Rosa Uy, Chung I. Young
  • Patent number: 5779632
    Abstract: A polymerized microemulsion pressure sensitive adhesive composition is described. The composition has peel adhesion of at least 3 Newtons/100 mm as measured according to a PSTC-1 Test. The composition preferably has a bicontinuous structure of a continuous phase of a hydrophobic pressure sensitive adhesive polymer and a continuous phase of a hydrophilic polymer. The bulk properties of both polymers are retained in the bicontinuous structure. The composition is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar amphiphilic or hydrophilic monomer or oligomer in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer, having a glass transition temperature suitable for forming a pressure sensitive adhesive, in the oil phase, water, and surfactant.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: July 14, 1998
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Timothy M. Dietz, Ying-Yuh Lu, Rosa Uy, Chung I. Young
  • Patent number: 5702753
    Abstract: A method of making and using diagnostic electrodes is disclosed. The method of making involves the coating of both conductive adhesive and biocompatible pressure sensitive adhesive on to a flexible non-conductive backing material on a side that has at least a portion thereof covered with an electrically conductive surface. The method of coating the electrodes is very cost efficient and economical. The use of the electrode enjoys the advantage of controlled coating thicknesses such that both types of adhesive in their final thicknesses have contact with skin of a patient.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 30, 1997
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Rafael M. Yasis, Rosa Uy, Barbara J. Marcus, Steven S. Kantner
  • Patent number: 5674561
    Abstract: A polymerized microemulsion pressure sensitive adhesive composition is described. The composition preferably has a biocontinuous structure of a continuous phase of a hydrophobic pressure sensitive adhesive polymer and a continuous phase of a hydrophilic polymer. The bulk properties of both polymers are retained in the bicontinuous structure. The composition is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar amphiphilic or hydrophilic monomer or oligomer in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer, having a glass transition temperature suitable for forming a pressure sensitive adhesive, in the oil phase, water, and surfactant. Uses for the pressure sensitive adhesive composition include biomedical articles, such as biomedical electrodes, medical skin coverings, and pharmaceutical delivery devices, and industrial articles, such as zinc/adhesive tapes used for cathodic protection of rebars embedded in concrete.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: October 7, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy M. Dietz, Ying-Yuh Lu, Rosa Uy, Chung I. Young
  • Patent number: 5670557
    Abstract: A polymerized microemulsion pressure sensitive adhesive composition is described. The composition has peel adhesion of at least 3 Newtons/ 100 mm as measured according to a PSTC-1 Test. The composition preferably has a bicontinuous structure of a continuous phase of a hydrophobic pressure sensitive adhesive polymer and a continuous phase of a hydrophilic polymer. The bulk properties of both polymers are retained in the bicontinuous structure. The composition is prepared from a microemulsion comprising a free-radically ethylenically unsaturated polar amphiphilic or hydrophilic monomer or oligomer in the aqueous phase, a free-radically ethylenically unsaturated hydrophobic monomer, having a glass transition temperature suitable for forming a pressure sensitive adhesive, in the oil phase, water, and surfactant.
    Type: Grant
    Filed: July 25, 1995
    Date of Patent: September 23, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy M. Dietz, Ying-Yuh Lu, Rosa Uy, Chung I. Young
  • Patent number: 5536446
    Abstract: Solid state conductive polymer compositions which are ionically-conductive regardless of the amount of water present in the composition are disclosed. The compositions have solvating polymer, ionic salt, and optionally if the composition is not cohesive and pliable, essentially non-volatile plasticizer in an amount sufficient to render the composition cohesive and pliable. Biomedical electrodes having means for electrical communication contacting the compositions are also disclosed. Methods of making the compositions and electrodes are also disclosed.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: July 16, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Rosa Uy, Timothy M. Dietz
  • Patent number: 5520180
    Abstract: Solid state conductive polymer compositions which are ionically-conductive regardless of the amount of water present in the composition are disclosed. The compositions have solvating polymer, ionic salt, and optionally if the composition is not cohesive and pliable, essentially non-volatile plasticizer in an amount sufficient to render the composition cohesive and pliable. Biomedical electrodes having means for electrical communication contacting the compositions are also disclosed. Methods of making the compositions and electrodes are also disclosed.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: May 28, 1996
    Assignee: Minnesota Mining and Manufactoring Company
    Inventors: Rosa Uy, Timothy M. Dietz
  • Patent number: 5438988
    Abstract: A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component of a biomedical electrode. The composition is also useful as a drug delivery device to deliver pharmaceuticals or other active ingredients to or through mammalian skin. The composition is also useful as a component in a skin covering for protecting mammalian skin or mammalian skin openings with antimicrobial agents. A method of preparation of the composition is also disclosed.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: August 8, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Duan, Robert A. Asmus, Timothy M. Dietz, Rosa Uy, Olester Benson, Jr.
  • Patent number: 5409966
    Abstract: A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component of a biomedical electrode. The composition is also useful as a drug delivery device to deliver pharmaceuticals or other active ingredients to or through mammalian skin. The composition is also useful as a component in a skin covering for protecting mammalian skin Or mammalian skin openings with antimicrobial agents. A method of preparation of the composition is also disclosed.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: April 25, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Duan, Robert A. Asmus, Timothy M. Dietz, Rosa Uy, Olester Benson, Jr.
  • Patent number: 5389376
    Abstract: A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component of a biomedical electrode. The composition is also useful as a drug delivery device to deliver pharmaceuticals or other active ingredients to or through mammalian skin. The composition is also useful as a component in a skin covering for protecting mammalian skin or mammalian skin openings with antimicrobial agents. A method of preparation of the composition is also disclosed.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: February 14, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Duan, Robert A. Asmus, Timothy M. Dietz, Rosa Uy, Olester Benson, Jr.
  • Patent number: 5385679
    Abstract: Solid state conductive polymer compositions which are ionically-conductive regardless of the amount of water present in the composition are disclosed. The compositions have solvating polymer, ionic salt, and optionally if the composition is not cohesive and pliable, essentially non-volatile plasticizer in an amount sufficient to render the composition cohesive and pliable. Biomedical electrodes having means for electrical communication contacting the compositions are also disclosed. Methods of making the compositions and electrodes are also disclosed.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: January 31, 1995
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Rosa Uy, Timothy M. Dietz
  • Patent number: 5362420
    Abstract: The present invention discloses a low impedance, water-absorbing, ionically-conductive, hydrophilic pressure sensitive adhesive composition comprising an ionically-conductive, hydrophilic, pressure sensitive adhesive hydrogel and crosslinked poly(N-vinyl lactam) in an amount sufficient to retain low electrical impedance and maintain hydrogel adhesion and cohesion during use of the composition in the presence of water and other moisture tending to plasticize the hydrogel. Crosslinked homopolymers and copolymers of poly(N-vinyl pyrrolidone) having Swelling Capacity of at least 15 milliliters of water per gram of poly(N-vinyl pyrrolidone) are preferred. Adhesion values upon removal from mammalian skin after about four hours of adhesion are not greater than initial adhesion removal values, demonstrating ease of removal of electrodes of the present invention from skin.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: November 8, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven K. Itoh, Timothy M. Dietz, Rosa Uy
  • Patent number: 5338490
    Abstract: A two-phase composite of ionically-conductive pressure-sensitive adhesive, biomedical electrodes using the composite and methods of preparing the composite and the electrode are disclosed. The continuous phase is a hydrophilic, solid state pressure-sensitive adhesive composition ionically-conductive regardless of an amount of water present in the composition. The discontinuous phase are domains of a hydrophobic pressure-sensitive adhesive which enhances adhesion of the composite to mammalian skin while maintaining acceptable alternating current impedance of the composite.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: August 16, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy M. Dietz, Robert A. Asmus, Rosa Uy
  • Patent number: 5276079
    Abstract: A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component of a biomedical electrode. The composition is also useful as a drug delivery device to deliver pharmaceuticals or other active ingredients to or through mammalian skin. The composition is also useful as a component in a skin covering for protecting mammalian skin or mammalian skin openings with antimicrobial agents. A method of preparation of the composition is also disclosed.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: January 4, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Duan, Robert A. Asmus, Timothy M. Dietz, Rosa Uy, Olester Benson, Jr.
  • Patent number: 4855234
    Abstract: A composite article is prepared having in sequence a fibrous support which has been subjected to a surface treatment to provide binding sites thereon, a layer of a protein immobilizer compound, and a biologically active protein such as enzyme. The surface treatment can be carried out by coating the surface with an inorganic oxide or by subjecting the surface to plasma treatment.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: August 8, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Carol E. Hendrickson, Rosa Uy, Arlene J. Mencke
  • Patent number: 4829001
    Abstract: A method for disinfecting a medical device comprising the steps of immersing a medical device in a hydrogen peroxide solution for a time sufficient to disinfect said device, decomposing any residual hydrogen peroxide by use of a catalytically effective amount of a protein capable of decomposing hydrogen peroxide, said protein being immobilized on a composite article, said composite article comprising in sequence a support, a layer of protein immobilizer compound, and a biologically active protein. The surface modification treatment is a gelled network of inorganic oxide particles or a plasma treatment.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: May 9, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Arlene J. Mencke, Carol E. Hendrickson, Rosa Uy
  • Patent number: 4757014
    Abstract: A composite article is prepared comprising in sequence a fibrous polymeric support which has been subjected to a surface treatment to provide binding sites thereon, a layer of a protein immobilizer compound, and a biologically active protein. The surface treatment comprises coating the support with a 2 to 500 nm thick layer of inorganic oxide or subjecting the support to a plasma treatment. The protein immobilizer can be a polymer or silane-functional compound. The biologically active protein can be the enzyme, catalase, which has use in decomposing hydrogen peroxide when disinfecting contact lenses.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: July 12, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Carol E. Hendrickson, Rosa Uy, Arlene J. Mencke