Patents Represented by Attorney, Agent or Law Firm Doreen S. L. Gwin
  • Patent number: 6022914
    Abstract: The present invention relates to a pressure-sensitive adhesive composition containing a non-halogen, non-intumescent flame-retardant system comprising at least one flame-retardant agent with the provisos that the flame-retardant system does not comprise Sb.sub.2 O.sub.3 or does not consist only of alumina trihydrate.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: February 8, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Petra Nowak, Robert D. Waid, William D. Coggio
  • Patent number: 6004670
    Abstract: A multi-cycle refastenable contact responsive non-tacky fastener system and method of use with a field of a contact responsive fastening layer having essentially no surface tack. The fastening layer is multiply releasable and refastenable against a non-tacky target surface, and has substantially constant 90.degree. peel strength of less than about 5 kN/m when in contact with the target surface. A mounting layer comprises a field of a pressure sensitive adhesive onto which the field of the contact responsive layer is directly attached.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 21, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James J. Kobe, Maurice E. Freeman, Bradley D. Zinke, Shih-Lai Lu, Jason A. Chesley, Eric V. Malmberg, Robert G. Shaw
  • Patent number: 5914157
    Abstract: The incorporation of a non-thermosettable phenolic tackifying resin surprisingly provides improved solvent free, hot melt processing of hydrocarbon elastomers with crosslinking promoters to form pressure sensitive adhesive tapes. The tapes advantageously have a desirable balance of the properties of resistance to slow rate peel and fast rate peel adhesion.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: June 22, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Munson, Andrew C. Lottes, Angelo Psellas, Denis A. Brisson
  • Patent number: 5908695
    Abstract: A multi-cycle refastenable contact responsive non-tacky fastener system and method of use with a field of a contact responsive fastening layer having essentially no surface tack. The fastening layer is multiply releasable and refastenable against a non-tacky target surface, and has substantially constant 90.degree. peel strength of less than about 5 kN/m when in contact with the target surface. A mounting layer comprises a field of a pressure sensitive adhesive onto which the field of the contact responsive layer is directly attached.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: June 1, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James J. Kobe, Maurice E. Freeman, Bradley D. Zinke, Shih-Lai Lu, Robert G. Shaw
  • Patent number: 5888335
    Abstract: A multi-cycle refastenable contact responsive non-tacky fastener system and method of use with a field of a contact responsive fastening layer having essentially no surface tack. The fastening layer is multiply releasable and refastenable against a non-tacky target surface, and has substantially constant 90.degree. peel strength of less than about 5 kN/m when in contact with the target surface. A mounting layer comprises a field of a pressure sensitive adhesive onto which the field of the contact responsive layer is directly attached.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: March 30, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James J. Kobe, Maurice E. Freeman, Bradley D. Zinke, Shih-Lai Lu
  • Patent number: 5858150
    Abstract: A pressure-sensitive adhesive comprises an elastomer having a partially oriented and partially crystallized elastomer component. Articles comprising the pressure-sensitive adhesive on a backing or substrate are also disclosed, as are methods of preparing the adhesive and the articles.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: January 12, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David J. Yarusso, Patrick D. Hyde
  • Patent number: 5851664
    Abstract: A semiconductor wafer processing tape comprises a permanent backing and a layer of a non-pressure sensitive adhesive comprising a thermoplastic elastomer block copolymer on the permanent backing. Optionally, the adhesive may include an adhesion modifier such as a tackifying resin, a liquid rubber or a photocrosslinking agent. The tapes are useful for both wafer grinding and wafer dicing applications. A method of processing semiconductor wafers is disclosed.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: December 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard E. Bennett, Gerald C. Bird, Mark K. Nestegard, Eleanor Rudin
  • Patent number: 5851327
    Abstract: A method for vibrationally damping an article that is subject to resonant vibrations comprises the steps of providing a vibration damper and applying the vibration damper to the article to damp the resonant vibrations. The vibration damper comprises an acrylate viscoelastic vibration damping material and an effective amount of hydrophobic silica. The invention also relates to vibration dampers that utilize the acrylate viscoelastic vibration damping material as well as articles that incorporate the vibration dampers.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: December 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Donald T. Landin
  • Patent number: 5849052
    Abstract: An abrasive article comprising(a) a plurality of abrasive particles and(b) a bond system which adheres the plurality of abrasive particles, the bond system comprising a binder and a polysiloxane of formula (A): ##STR1## wherein R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 may be the same or different and can be an alkyl, vinyl, chloroalkyl, aminoalkyl, epoxy, fluororalkyl, chloro, fluoro, or hydroxy, and n is 500 or greater.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: December 15, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Loren L. Barber, Jr.
  • Patent number: 5840090
    Abstract: A coated abrasive article comprised of a backing having a layer of grains adherently bonded thereto by a binding material, wherein the layer of grains comprises abrasive grains and nonabrasive composite grains, and the nonabrasive composite grains comprise inorganic nonabrasive particles bonded together by a binder selected from the group consisting of a metal salt of fatty acid, colloidal silica, and combinations thereof. The abrasive article has an unexpected abrading efficiency, performing equal to, or superior to, a coated abrasive article containing only abrasive grains. The invention also relates to a bonded abrasive article comprising the abrasive grains and nonabrasive composite grains adhered together.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Kwok-Lun Ho, Walter L. Harmer
  • Patent number: 5837179
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: November 17, 1998
    Assignee: Minnesota Mining and Manufacturing Copmany
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zemke, deceased
  • Patent number: 5807632
    Abstract: The present invention provides a release coated film, an adhesive tape comprising a release coated film, and processes for preparing the same. The fluoropolymer release layer comprises a graft copolymer of (i) a base polymer containing polymerized units derived from monomers having terminal olefinic double bonds, and (ii) a moiety comprising a fluoroaliphatic group. The film may be coextruded and may subsequently be oriented in at least one direction. Alternately, the release coating can be extrusion coated onto a backing and may be subsequently oriented if the backing is orientable. Adhesives may be coated onto the release coated films either before or after orientation, or they may be coextruded along with the release coating and/or backing.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: September 15, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James J. Pedginski, James E. Sax, Steven S. Kantner, Raymond R. Rivera, Ronald W. Ausen, Stephen W. Bany, Albert I. Everaerts, Thomas P. Hanschen, Walter R. Romanko
  • Patent number: 5767049
    Abstract: The present invention comprises a wallpaper remover whose composition includes at least one surfactant, at least one humectant and a major portion water. The composition should be present in an amount sufficient for the composition to be effective in removing wallpaper.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: June 16, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kimberley A. Gaul
  • Patent number: 5766277
    Abstract: A coated abrasive article comprises a backing, a first binder (i.e., a make coat) on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable melt-processable resin containing an epoxy resin, a polyester component, a polyfunctional acrylate component, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated porous cloth material.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: June 16, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert J. DeVoe, Gregg D. Dahlke, Kimberly K. Harmon, Craig A. Masmar
  • Patent number: 5765332
    Abstract: A fire barrier protected dynamic joint in a structure, and a method for installing the same. The fire barrier protected dynamic joint includes a flexible sheet of a fire barrier material and a adhesive material for bonding the sheet to an attachment area of the joint.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: June 16, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Heather V. Landin, Paul J. Charland, John D. Nicholas
  • Patent number: 5737794
    Abstract: A composite abrasive filament, including at least one preformed core at least partially coated with a hardened, abrasive-filled thermoplastic elastomer, exhibits increased abrading life over previously known abrasive filaments. Also disclosed are methods of making such filaments and using such filaments in article form to abrade a variety of workpieces.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: April 14, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Loren L. Barber, Jr., Dennis G. Welygan, Richard M. Pihl
  • Patent number: 5738695
    Abstract: An abrasive article, and methods of making and using same, comprising an inorganic phosphate selected from the group consisting of an alkali metal metaphosphate, an alkaline earth metal metaphosphate, and a Group IIIA metal orthophosphate; the inorganic phosphate may be present in a peripheral coating layer of a coated abrasive article, or an abrasive slurry coating in a uniform thickness, or a structured abrasive article.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: April 14, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Walter L. Harmer, Kwok-Lun Ho
  • Patent number: 5736747
    Abstract: Organic compounds having at least one ethylenically-unsaturated group are described, the organic compounds being suitable for use in coatable compositions as reactive diluents; compounds of the invention preferably have a divalent organic linking moiety devoid of reactive groups other than optional ethylenically-unsaturated groups, and a polar organic moiety and are particularly adept in solubilizing aminoplast resins having radiation-curable pendant groups.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: April 7, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ernest L. Thurber, Eric G. Larson, Alan R. Kirk, Gregg D. Dahlke
  • Patent number: 5733648
    Abstract: Organic compounds having at least one ethylenically-unsaturated group are described, the organic compounds being suitable for use in coatable compositions as reactive diluents; compounds of the invention preferably have a divalent organic linking moiety devoid of reactive groups other than optional ethylenically-unsaturated groups, and a polar organic moiety and are particularly adept in solubilizing aminoplast resins having radiation-curable pendant groups.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ernest L. Thurber, Eric G. Larson, Alan R. Kirk, Gregg D. Dahlke
  • Patent number: 5721326
    Abstract: Polymerizable compositions comprising (a) hydroxypropyl methacrylate; (b) a C.sub.8 to C.sub.10 alkyl ester of acrylic or methacrylic acid; and (c) a free-radical initiator.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: February 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: George W. Frost