Patents Represented by Attorney, Agent or Law Firm William J. Bond
  • Elastic film laminate
    Patent number: 5462708
    Abstract: An elastic film is provided with non-elastic regions and elastic regions formed from a multi-layer film of an elastomeric layer and a relatively inelastic layer(s).
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: October 31, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Douglas A. Swenson, Herbert J. Fox, Dennis L. Krueger, Rochelle L. Lockridge
  • Construction adhesive for porous film
    Patent number: 5455111
    Abstract: There is provided a laminate of a liquid additive containing microporous film with a hot-melt adhesive composition. The hot-melt adhesive is formulated with polybutylene polymers or copolymers with optional tackifiers and/or plasticizers such that the microporous film in the areas of adhesive contact has an L value of at least 70, most preferably at least 80. The liquid additive is preferably a plasticizing oil such as mineral oil.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: October 3, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ruben E. Velasquez Urey
  • Hot-melt-coatable adhesives
    Patent number: 5453319
    Abstract: A hot melt coatable pressure-sensitive adhesive is provided showing high levels of adhesion to low surface energy films and nonwovens. The adhesive elastomeric phase comprises from 78 to 98 parts by weight of a diblock A-B type block copolymer with an elastomeric block of 1,3-polybutadiene with 2 to 22 parts by weight of multiblock A-B type block copolymer. The tackifying material comprises 140 parts or less of a solid tackifying resin and a liquid tackifier to provide an adhesive having a composite midblock glass transition temperature of less than -10.degree. C.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: September 26, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ramsis Gobran
  • Elastic strand construction
    Patent number: 5431644
    Abstract: An elastic strand construction comprising a plurality of spaced ribs separated by thin zones is provided. The elastic strand construction is preferred for applications in disposable garments or the like. A method of manufacturing the preferred elastic strand comprises extrusion of polymeric material through a profiled die or the like. In the alternative, a method of formation comprising extrusion between a profiled roller arrangement is described. A preferred disposable garment construction utilizing elastic strands according to the present invention is described.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: July 11, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alan J. Sipinen, Leigh E. Wood, Bradley W. Eaton
  • Composite materials and process
    Patent number: 5429856
    Abstract: Inelastic films comprising at least one elastomeric core and a surrounding inelastic matrix preferably prepared by coextrusion. The film when stretched and allowed to recover will create an elastomeric composite.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: July 4, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dennis L. Krueger, Leigh E. Wood
  • Process of making zone orientated continuous web
    Patent number: 5424025
    Abstract: A continuous web with longitudinaly displaced thick and thin zones. The thin zones being uniaxially orientated. The web is useful in forming diaper backsheet films where the thick zones act as a reinforced zone for attachment of a pressure-sensitive fastening tab.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: June 13, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Hanschen, Dennis L. Krueger, Stanley C. Erickson, Robert J. Kinney
  • Elastic film laminate
    Patent number: 5422178
    Abstract: An elastic film is provided with non-elastic regions and elastic regions formed from a multi-layer film of an elastomeric layer and a relatively inelastic layer(s).
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: June 6, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Douglas A. Swenson, Herbert J. Fox, Dennis L. Krueger, Rochelle L. Lockridge
  • Low profile ostomy filter
    Patent number: 5417678
    Abstract: A low profile heat-sealable adsorbent filter for ostomy appliances is provided. The filter comprises a heat-sealable microporous film layer, a filter layer of melt-blown microfibers loaded with adsorbent particles and a cover layer. The microporous film layer provides for rapid release of flatus or other gas in having a Gurley value of less than about 100 seconds/50 cc. The melt-blown microfiber filter web has an estimated service life of about 3 days or more with a web basis weight of about 700 grams/m.sup.2 or less. The low profile filter can be sealed to the outside face of an ostomy appliance with a perimeter seal to provide a filter with no liquid or gas by-pass and no liquid by-pass through the filter.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: May 23, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Nicholas R. Baumann, John L. Roche, James M. Larson, Paul E. Hansen
  • Heat-sealable oriented web
    Patent number: 5411788
    Abstract: A heat-sealable oriented film or layer of a semi-crystalline thermoplastic polymer. The film has a thin, heat-sealable layer of the same thermoplastic polymer having a different heat-seal temperature, which layer is heat-sealable without requiring fusion of the entire film. There is also provided a method for producing the claimed heat-sealable film.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: May 2, 1995
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Patrick D. Hyde, Andrew J. Ouderkirk
  • Repositionable adhesive tape
    Patent number: 5389438
    Abstract: An adhesive of certain elastomeric block copolymers and tackifying materials can be hot-melt coated onto a flexible backing to provide an adhesive tape, two pieces of which can bond to each other to have excellent resistance to shear forces but can be easily peeled apart, even after prolonged periods of time. The adhesive can be low-tack or tack-free. When the novel adhesive is tacky, it can bind sheets into a note pad from which individual sheets can be removed, temporarily adhered to paper and other substrates, and later cleanly removed, even after prolonged contact.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: February 14, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Miller, George J. Clements
  • Repositionable adhesive tape
    Patent number: 5378536
    Abstract: An adhesive of certain elastomeric block copolymers and tackifying materials can be hot-melt coated onto a flexible backing to provide an adhesive tape, two pieces of which can bond to each other to have excellent resistance to shear forces but can be easily peeled apart, even after prolonged periods of time. The adhesive can be low-tack or tack-free. When the novel adhesive is tacky, it can bind sheets into a note pad from which individual sheets can be removed, temporarily adhered to paper and other substrates, and later cleanly removed, even after prolonged contact.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: January 3, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John A. Miller, George J. Clements
  • Elastic film laminate
    Patent number: 5376430
    Abstract: An elastic film is provided with non-elastic regions and elastic regions formed from a multi-layer film of an elastomeric layer and a relatively inelastic layer (s).
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: December 27, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Douglas A. Swenson, Herbert J. Fox, Dennis L. Krueger, Rochelle L. Lockridge
  • Block polymers and oil-contamination tolerant adhesive compositions
    Patent number: 5360855
    Abstract: A novel 2-substituted butadiene block copolymer is provided which provides adhesives having superior adhesion and tolerance to oil contaminated surfaces. The elastomeric block has a glass transition temperature of less than about minus 65.degree. C. with the 2 substituent being an alkyl group.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: November 1, 1994
    Assignee: Minnesota Mining & Manufacturing Company
    Inventor: Ramsis Gobran
  • Elastomeric tapes with microtextured skin layers
    Patent number: 5354597
    Abstract: Microtextured elastomeric laminate tape comprising a laminate with at least one elastomeric layer and at least one thin skin layer, and an adhesive layer, preferably prepared by coextrusion of the layers followed by stretching the laminate past the elastic limit of the skin layers and then allowing the laminate tape to recover.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: October 11, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Karen M. Capik, Dennis L. Krueger, Joaquin Delgado
  • Spatially modified elastic laminates
    Patent number: 5344691
    Abstract: Microtextured elastomeric laminates comprising at least one elastomeric layer and at least one thin skin layer is preferably prepared by coextrusion of the layers followed by stretching the laminate past the elastic limit of the skin layers in predetermined regions of the laminate and then allowing the laminate to recover in these regions.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: September 6, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Hanschen, Dennis L. Krueger, Gregory P. Karp
  • Hot-melt-coatable adhesives
    Patent number: 5342685
    Abstract: A hot melt coatable pressure-sensitive adhesive is provided showing high levels of adhesion to low surface energy films and nonwovens. The adhesive elastomeric phase comprises from 78 to 98 parts by weight of a diblock A-B type block copolymer with an elastomeric block of 1,3-polybutadiene with 2 to 22 parts by weight of multiblock A-B type block copolymer. The tackifying material comprises 140 parts or less of a solid tackifying resin and a liquid tackifier to provide an adhesive having a composite midblock glass transition temperature of less than -10.degree. C.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: August 30, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Ramsis Gobran
  • Agglomerated activated carbon air filter
    Patent number: 5332426
    Abstract: A self-supporting filter of adsorbent particles is provided by agglomerating the adsorbent particles with a thermoplastic binder and forming a self-supporting filter with a low pressure drop and high efficiency suitable for use as an automotive cabin filter.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: July 26, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Yuan-Ming Tang, John C. Kostecki, Eric G. Graeve
  • Process of making heat-sealable oriented web
    Patent number: 5328653
    Abstract: A heat-sealable oriented film or layer of a semi-crystalline thermoplastic polymer. The film has a thin, heat-sealable layer of the same thermoplastic polymer having a different heat-seal temperature, which layer is heat-sealable without requiring fusion of the entire film. There is also provided a method for producing the claimed heat-sealable film.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: July 12, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Patrick D. Hyde, Andrew J. Ouderkirk
  • Polyolefin meltblown elastic webs
    Patent number: 5324576
    Abstract: An elastic nonwoven web of microfibers of radiation crosslinked ethylene/alpha-olefin copolymers. The web has an elongation to break of at least 400 percent and generally is comprised of meltblown microfibers. The ethylene/alpha olefin is preferably an ethylene/1-octene copolymer having a density less than 0.9 g/cm.sup.3 and a melting point of less than 100.degree. C.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: June 28, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John F. Reed, Michael Swan
  • Rounded corner fastening tab diaper closure
    Patent number: 5312387
    Abstract: A fastening tab for a disposable diaper having a free end having a distal half with a maximum width X-V and a proximal half minimum width y, where x is the width of the manufacturer's end. The tape provides a maximum peel front at the distal end of the attached fastening tab providing a more secure closure and is capable of being cut from a stock roll in a repeating pattern without any waste.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: May 17, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Steven J. Rossini, Roland R. Midgley