Patents Represented by Attorney, Agent or Law Firm Doreen S. L. Gwin
  • Patent number: 5709935
    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: January 20, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ernest L. Thurber, Eric G. Larson, Alan R. Kirk, Gregg D. Dahlke
  • Patent number: 5710281
    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: January 20, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ernest L. Thurber, Eric G. Larson, Alan R. Kirk, Gregg D. Dahlke
  • Patent number: 5704952
    Abstract: An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: January 6, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kam W. Law, Walter L. Harmer, Alan R. Kirk, Ernest L. Thurber
  • Patent number: 5688334
    Abstract: a method for removing wallpaper involving the employment of a composition comprising a surfactant, a polyhydric alcohol humectant, an organic solvent and water.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: November 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kimberley A. Gaul
  • Patent number: 5685935
    Abstract: A nonwoven abrasive or scouring article having at least one major surface and an interior region comprises an open, lofty web of first and second crimped, staple organic thermoplastic fibers, wherein the first organic thermoplastic fiber comprises materials selected from the group consisting of polyamides, pololefins, and polyesters, and wherein said second organic thermoplastic fiber comprises at least two materials of different heat stability. The first and second organic crimped, staple thermoplastic fibers are melt-bonded together at least at a portion of points where they contact. At least a portion of the first and second fibers of one major surface of the nonwoven article have an abrasive coating bonded thereto, and at least a portion of the first and second fibers of the interior region have no abrasive coating bonded thereto, a structure which minimizes the amount of binder which must be used.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: November 11, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Raymond F. Heyer, Connie L. Hubbard
  • Patent number: 5677376
    Abstract: A polymer blend that comprising:(a) a modified block copolymer comprising(i) a polystyrene block and(ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block being modified with an average of one or more carboxyl groups; and(b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which:(i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and(ii) at least one of the monomers is a nitrogen-containing monomer; and a method of making and using the polymer blend.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: October 14, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James D. Groves
  • Patent number: 5669940
    Abstract: An abrasive article comprising a substrate having a first major surface and an adhesive layer having abrasive particles embedded therein coated on the first major surface of the substrate, the adhesive layer comprising a hot melt adhesive comprising a polymer cross-linked via hydrolyzed or condensed silyl groups; and a method of preparing an abrasive article, the method comprising (a) providing a substrate having a first major surface, (b) applying an adhesive layer comprising a moisture-curable hot melt adhesive comprising a polymer having hydrolysable or condensable silyl groups to the first major surface of the substrate, the hot-melt adhesive being in a molten or semi-molten state, (c) depositing abrasive particles on the adhesive layer, and (d) curing the hot-melt adhesive.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: September 23, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Roy Stubbs
  • Patent number: 5667542
    Abstract: An abrasive article, for example, a coated, bonded, or nonwoven abrasive article comprising a binder, a plurality of abrasive particles, and an antiloading component in a peripheral coating of the abrasive article.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: September 16, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kam W. Law, Walter L. Harmer
  • Patent number: 5667842
    Abstract: Abrasive articles made using a coatable, addition polymerizable binder precursor composition are described, as well as methods of making same. The compositions comprise a reactive diluent compound and preferably an addition polymerizable resin, the reactive diluent being an organic compound selected to be especially effective in solubilizing aminoplast resins.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 16, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric G. Larson, Ernest L. Thurber, Alan R. Kirk, Gregg D. Dahlke, Elizabeth C. Edblom, Don H. Kincaid
  • Patent number: 5663267
    Abstract: A soil stabilization polymer grout composition comprising (a) a C.sub.8 to C.sub.10 alkyl ester of acrylic or methacrylic acid; optionally,(b) an ester of acrylic or methacrylic acid having a T.sub.g of greater than about 50.degree. C.; (c) a crosslinking agent; and (d) a free-radical initiator. The composition when filled to provide a composite provides a hardened material which is re-enterable.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: September 2, 1997
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventor: George W. Frost
  • Patent number: 5633049
    Abstract: The present invention provides an acid-resistant protective coating, preferably an acid- and abrasion-resistant protective coating, for thermoplastic transparencies, particularly aircraft transparencies. The coating is prepared from a silica-free protective coating precursor composition comprising a multifunctional ethylenically unsaturated ester of acrylic acid, a multifunctional ethylenically unsaturated ester of methacrylic acid, or a combination thereof; and an acrylamide.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: May 27, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Zayn Bilkadi, Thomas W. Rambosek
  • Patent number: 5625006
    Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: April 29, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Joseph P. Callahan, Jr., Rudyard M. Enanoza, Mark D. Weigel
  • Patent number: 5623010
    Abstract: A polymer blend comprising (a) a modified block copolymer comprising (i) a polystyrene block and (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block being modified to contain an average of one or more carboxyl groups; and (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive and (ii) at least one of the monomers has carboxylic acid functionality and is present in an amount ranging from about 1 to about 15 parts by weight, based on 100 parts by weight of polymer (b), and a method of priming a substrate comprising applying the blend to the substrate.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: April 22, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James D. Groves
  • Patent number: 5616411
    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: May 25, 1993
    Date of Patent: April 1, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Loren L. Barber, Jr., Dennis G. Welygan, Richard M. Pihl
  • Patent number: 5611825
    Abstract: Film-backed and paper-backed coated abrasives and methods of making same are described using coatable urea-aldehyde binder precursor compositions including a urea-aldehyde resin and a cocatalyst, which yield more consistent quality coated abrasives. In addition, the compositions have longer pot life and allow curing at lower temperatures. The urea-aldehyde resins have an aldehyde/urea molar ratio of at least about 1.0, more preferably ranging from about 1.0 to about 2.0, and a free aldehyde content ranging from about 0.1 to about 3.0 weight percent based on weight of total aldehyde. The cocatalyst consists essentially of a Lewis acid and a salt selected from the group consisting of ammonium ion salts and organic amine salts. Paper-backed abrasive articles may employ a fabric nonwoven layer between the abrasive coating and the paper layer to reduce abrasive particle shelling.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: March 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robbyn L. Engen, Jeffrey E. Ford
  • Patent number: 5605964
    Abstract: A polymer blend comprising (a) a block copolymer comprising (i) a polystyrene block and (ii) a polydiene block or a hydrogenated polydiene block, said block copolymer (a) being non-maleated; and (b) a polymer comprising a polymerization reaction product of two or more monoethylenically unsaturated monomers in which (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and (ii) at least one of the monomers is a nitrogen-containing monomer and, optionally, (iii) from 1-10 parts, based upon 100 parts of polymer, of a monomer having at least one of carboxylic acid functionality, hydroxy functionality, and epoxy functionality as well as a method of priming a substrate comprising applying the blend to the substrate.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: February 25, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James D. Groves
  • Patent number: 5602202
    Abstract: A method of priming a substrate comprising applying to the substrate a blend comprising (a) a modified block copolymer comprising (i) a polystyrene block and (ii) a polydiene block or a hydrogenated polydiene block, the polydiene block or hydrogenated polydiene block being modified to contain an average of one or more carboxyl groups; and (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive, and (ii) at least one of the monomers is a nitrogen-containing monomer; in particular, a method of enhancing adhesion between a substrate and an adhesive comprising the steps of priming the substrate by applying to the substrate the blend and applying the adhesive to the primed substrate.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: February 11, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James D. Groves
  • Patent number: RE35570
    Abstract: An abrasive article comprising a binder and abrasive grits, wherein the abrasive grits comprise abrasive particles having specified shapes. Coated abrasive articles of this invention comprise a backing having at least one layer of abrasive material adhered thereto by means of a binder. A portion of this layer contains abrasive particles having specified shapes. It is preferred that the geometric shape of these abrasive particles be triangular. For triangular-shaped particles, about 35% to about 65% of the particles are oriented with a vertex pointing away from the backing and a base in contact with the binder, with about 35% to about 65% of the particles being oriented with a base pointing away from the backing and a vertex in contact with the binder.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: July 29, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donley D. Rowenhorst, Todd A. Berg, David E. Broberg, James G. Berg
  • Patent number: H1678
    Abstract: An abrasive article comprising: (a) a backing having a first major surface; (b) an abrasive layer coated on the first major surface, the abrasive layer comprising (i) an organic-based bond system, and (ii) a plurality of abrasive particles adhered in the bond system; and (c) an outermost coating layer comprising a poly(vinyl carbamate) polymer at least partially coated over said abrasive layer, and a method of making and using the abrasive article.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: September 2, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Albert James Ronning
  • Patent number: RE35709
    Abstract: Sluuries and binder precursor dispersions suitable for use in producing abrasive articles are presented. Slurries comprise a polymerizable resin which is preferably addition polymerizable, abrasive particles, and modifying particles, wherein the modifying particles are present in an amount sufficient to reduce the viscosity of the slurry. Abrasive articles incorporating cured versions of the slurries and dispersions are presented, as well as methods of making the articles and of reducing sedimentation rate of mineral particles (abrasive or filler).
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: January 6, 1998
    Assignee: Minnesota Mining and Manufacturing Corporation
    Inventor: Scott R. Culler