Adhesive Compositions Patents (Class 428/355R)
  • Patent number: 5861211
    Abstract: Articles comprising a substrate, preferably a retroreflective sheeting, having a coating of a pressure-sensitive adhesive composition, and articles wherein the adhesive adheres the substrate to a highly monomericly plasticized PVC component, preferably a PVC coated fabric. The adhesive comprises a crosslinked copolymer of a first monofunctional acrylate ester of a non-tertiary alcohol having as a homopolymer a glass transition temperature of less than -25.degree. C., a nitrogen containing moderately basic monomer copolymerizable therewith selected from the group consisting of N,N-dialkyl substituted amides, an optional copolymerizable acidic monomer, an optional second monofunctional acrylate ester of a non-tertiary alcohol having as a homopolymer a glass transition temperature -25.degree. C. or greater, and a crosslinking agent. A method of bonding a highly monomericly plasticized PVC component to a substrate, preferably a retroreflective sheeting, using the adhesive.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: January 19, 1999
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Bimal V. Thakkar, Albert I. Everaerts
  • Patent number: 5853876
    Abstract: An adhesive tape or an adhesive label each of which comprises a substrate including a biodegradable polymer layer and an adhesive layer provided on at least one surface of the substrate. The adhesive tape has a release agent layer formed on an opposite surface to the surface where the adhesive layer is provided, or has a release tape which is in contact with the adhesive layer, and the adhesive tape was wound up around a core for storage. The adhesive label has a release sheet which is in contact with the adhesive layer. In such biodegradable adhesive tape and biodegradable adhesive label, a biodegradable polymer is used as a material of the substrate, and therefore the tape and label do not disrupt the natural environment or do not largely disorganize the ecosystem in the soil even when discarded in the soil after use.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: December 29, 1998
    Assignee: Lintec Corporation
    Inventors: Akihiko Takano, Sadakazu Morio, Masao Kogure, Takanori Saitoh
  • Patent number: 5824401
    Abstract: A oil barrier waterproofing membrane laminate for waterproofing structural surfaces comprises a bituminous rubber adhesive membrane containing oil wherein on one face of the bituminous membrane is a carrier support structure comprising at least three polymeric layers. The carrier comprises an innermost light-absorbing polyethylene film containing carbon black situated closest to the bituminous membrane; an outermost surface layer comprising a light-reflecting polyethylene film containing a light-reflecting pigment; and at least one oil barrier film situated between the light-absorbing and light-reflecting polyethylene films.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: October 20, 1998
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Robert Francis Jenkins, Robert Alan Wiercinski
  • Patent number: 5824176
    Abstract: A composition for use in forming an adhesive layer and a heat-transfer label including such an adhesive layer. In one embodiment, the label is designed for use on silane-treated glass containers of the type that are subjected to pasteurization conditions. The label includes a support portion and a transfer portion, the transfer portion being positioned over the support portion. The support portion includes a sheet of paper overcoated with a release layer of polyethylene. The transfer portion includes an organic solvent-soluble phenoxy protective lacquer layer, an organic solvent-soluble polyester ink layer over the protective lacquer layer, and an acrylic adhesive layer over the ink layer. The adhesive layer is formed by depositing onto the ink layer, e.g., by gravure printing, a composition comprising a water-based acrylic resin dispersion or emulsion, isopropyl alcohol and water, and then evaporating the volatile components of the composition to leave an acrylic film.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: October 20, 1998
    Assignee: Avery Dennison Corporation
    Inventors: Samuel H. Stein, Eleanor R. Snay, Friedrich H. H. Geurtsen, James S. Nugent
  • Patent number: 5783302
    Abstract: TPE's which comprise A blocks or B blocks or both A blocks and B blocks, which are crystalline and in which at least a part of the crystallinity result from the presence of crystallizable side chains. Such crystalline blocks are referred to as SCC blocks. TPE's containing SCC A blocks are novel and as such form part of the present invention. The invention also includes processes, compositions, shaped articles and assemblies which make use of TPE's containing SCC A blocks.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 21, 1998
    Assignee: Landec Corporation
    Inventors: Steven P. Bitler, Raymond Clarke, David A. Kemp, Ray F. Stewart, Valentine Y. Yoon, Robert G. Freelin
  • Patent number: 5780151
    Abstract: Disclosed is a radiation crosslinkable water-dispersible adhesive composition that is useful in forming paper and plastic articles and other products that can be recycled through a process which includes washing or repulping in aqueous media. The cross-linkable water-dispersible adhesive composition is preferably used as a hot melt adhesive. The cross-linkable water-dispersible adhesive composition is a low molecular weight, branched copolyester containing a sulfomonomer and unsaturated moieties. The radiation crosslinked adhesive composition has more cohesive strength and viscosity than its corresponding uncross-linked adhesive, yet is still water-dispersible during product recycling.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: July 14, 1998
    Assignee: Eastman Chemical Company
    Inventors: Richard Anthony Miller, Scott Ellery George
  • Patent number: 5756188
    Abstract: An image-receiving laminate for an identification card stock, the laminate comprising an oriented polymeric film support having an image-receiving layer located on a first outermost surface thereof, the image-receiving layer having an embossed surface, and the second outermost surface of the oriented polymeric film support having a heat- or chemically-activated adhesive thereon.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas Carl Reiter, Peter P. Soscia, David P. Brust
  • Patent number: 5753364
    Abstract: The present invention provides pressure sensitive adhesives, compositions from which the pressure sensitive adhesives are formed, and articles having therein these pressure sensitive adhesives. The pressure sensitive adhesives, which have a Tg of less than about 20.degree. C., include a poly(.beta.-hydroxyorganoate) or mixture thereof. Preferably, these poly(.beta.-hydroxyorganoate)s include monomeric units of the general formula: ##STR1## wherein a minor amount (preferably no greater than about 20 mole percent) of the monomeric units have an R group containing 1-3 carbon atoms; and a major amount (preferably at least about 80 mole percent) of the monomeric units have an R group containing 4-30 (preferably 4-20) carbon atoms.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: May 19, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Denise R. Rutherford, W. James Hammar, Gaddam N. Babu
  • Patent number: 5749991
    Abstract: The present invention discloses a method of and composition for bonding a tubular first object to an inwardly located second object by using an adhesive coating. The coating includes water, a glue and a polymer. The coating is preferably applied to the inner surface of the first object and is dried so that the object may be stored for years prior to use. When ready for use, the coating is activated by wetting it with water so that the first tubular object can easily slide along the outer surface of the inwardly located second object to a desired position. The present invention further teaches a handgrip bonded to a golf club using the method described above.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: May 12, 1998
    Assignee: Niblick International AB
    Inventor: Kenneth .ANG.berg
  • Patent number: 5744239
    Abstract: This invention relates to the addition of antimicrobial agents to pavement marking systems to inhibit the growth of microorganisms on and under the pavement marking when it is affixed to a pavement.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: April 28, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gina M. Buccellato, Rochelle R. Robideau, Keith M. Hoffmann, Gregory F. Jacobs
  • Patent number: 5738939
    Abstract: The present invention provides adhesive articles that include more than one adhesive, or if one adhesive is used, include more than one adhesive portion, where, in each portion, the extent of cure of the adhesive is varied in a predetermined manner so that each adhesive portion behaves as if it were two or more different adhesives. The adhesive articles of the present invention are typically provided as adhesive tapes, often in the form of a tape having a longitudinal dimension (down-web dimension) that far exceeds its width (cross-web dimension).
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: April 14, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Clyde D. Calhoun, David C. Koskenmaki
  • Patent number: 5736229
    Abstract: In order to improve the printing capability with high-performance laser printers and the subsequent processing of a single-layered paper article, in particular, a single-sheet mailer having an adhesive coating adapted to be activated for adhering a single layer with itself or with further layers, it is suggested that a component is added to the adhesive coating which can absorb the separating agents used during laser printing and can remove them from the paper surface. According to the invention, additives of oleophilic bentonite and/or polyvinyl alkylether and/or polyethylene glycol are suggested.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: April 7, 1998
    Assignee: Drescher Geschaeftsdrucke GmbH
    Inventor: Reinhold Uhlemayr
  • Patent number: 5736230
    Abstract: In order to improve the printing capability with high-performance laser printers and the subsequent processing of a single-layered paper article, in particular, a single-sheet mailer having an adhesive coating adapted to be activated for adhering a single layer with itself or with further layers, it is suggested that a component is added to the adhesive coating which can absorb the separating agents used during laser printing and can remove them from the paper surface. According to the invention, additives of oleophilic bentonite and/or polyvinyl alkylether and/or polyethylene glycol are suggested.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: April 7, 1998
    Assignee: Drescher Geschaeftsdrucke GmbH
    Inventor: Reinhold Uhlemayr
  • Patent number: 5685756
    Abstract: This invention relates to a nonwoven material comprising an adhesive comprising polyhydroxyalkanoate (PHA). This invention also relates to an absorbent article comprising such nonwoven material. This invention also relates to a composition comprising PHA and a surfactant. This invention further relates to a method for preparing the nonwoven.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: November 11, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Isao Noda
  • Patent number: 5670260
    Abstract: A radiation-cured adhesive film having differential adhesion on opposing surfaces of the adhesive layer is provided. The film comprises a backing layer having coated thereon a radiation-cured adhesive copolymer layer, said copolymer comprised of one or more urethane oligomers A, optionally one or more B monomers, and a macromer C defined by the formula X--(Y).sub.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: September 23, 1997
    Assignee: Adhesives Research, Inc.
    Inventors: Michael J. Zajaczkowski, David A. Krupa, Barbara A. Stutzman
  • Patent number: 5662985
    Abstract: A label facestock structure is described which comprises a polymeric film substrate having on a first surface thereof (A) an adhesive anchor layer and on a second surface thereof (B) an ink base layer, the (A) and (B) layers are selected from the group consisting of:(i) a prime coating having on an external surface a functional coating of an interpolymer of (a) an .alpha.,.beta.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: September 2, 1997
    Assignee: Mobil Oil Corporation
    Inventors: Terry O. Jensen, Dan-Cheng Kong
  • Patent number: 5637368
    Abstract: An antistatic adhesive article which comprises an adhesive layer and utilizes vanadium oxide to impart antistatic properties to the article. The article is preferably an adhesive tape or sheet. The adhesive may be pressure sensitive or non-pressure sensitive. The vanadium oxide may be incorporated into or onto the tape from an aqueous dispersion.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: June 10, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Cadalbert, Eric D. Morrison, Tamara L. Johnson, William L. Kausch, David R. Boston, Wayne K. Larson, Steven T. Hedrick
  • Patent number: 5622764
    Abstract: Sterilization indicators utilizing moisture-resistant, water-dispersible, pressure sensitive adhesives are provided. The sterilization indicators comprise at least one backing strip, preferably water-dispersible, which is coated on at least one side with the moisture-resistant, water-dispersible, pressure sensitive adhesive. A sterilization indicator strip is affixed to the backing strip and is easily removable from the sterilization indicator. The indicator tapes are useful to maintain a sterilization wrapper containing articles to be sterilized in a closed position during sterilization, and normal pre- and post-sterilization handling, while also providing a means to indicate if the wrapped articles have passed through a sterilization cycle. After use, the sterilization indicator strip is easily removed, and the adhesives coating the sterilization indicators, and preferably also the backing strips, disperse an aqueous alkali solution, such as are found in commercial laundries.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 22, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Donald R. Battles
  • Patent number: 5622782
    Abstract: This invention relates to a foil having an adhesion promoting layer overlying at least one side of said foil. The adhesion promoting layer is suitable for enhancing adhesion between the foil and another substrate. The adhesion promoting layer is derived from a composition comprising silanes (A) and (B).Silane (A) is at least one compound represented by the formula ##STR1## wherein G.sup.1, G.sup.2, G.sup.3, G.sup.4, G.sup.5 and G.sup.6 are independently halogen, hydrocarbyloxy, or hydroxy groups; R.sup.1 is a hydrocarbon group or nitrogen-containing hydrocarbon group; and n is zero or 1.Silane (B) is at least one compound represented by the formula ##STR2## wherein R.sup.2 is an organofunctional group, said organofunctional group being reactive with or having an affinity for said another substrate; and G.sup.7, G.sup.8 and G.sup.9 are independently halogen, hydrocarbyloxy, or hydroxy groups.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: April 22, 1997
    Assignee: Gould Inc.
    Inventors: Charles A. Poutasse, III, Andrea M. Kovacs
  • Patent number: 5597648
    Abstract: Pressure sensitive adhesives (PSA) having a reduced volatile fraction content are provided by a process which comprises extracting a cured PSA with a fluid in or near its supercritical state. The process provides PSAs and articles containing PSAs which meet the volatility requirements of ASTM E-595. A silicone PSA transfer film having utility in outer space is obtained.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: January 28, 1997
    Assignee: Dow Corning Corporation
    Inventors: Larry F. Hanneman, Val Krukonis, Thomas J. Tangney, James J. Watkins
  • Patent number: 5589246
    Abstract: A heat-activatable adhesive article is provided. The article, preferably a tape, includes a substantially laterally stable heat recoverable carrier film having at least one surface comprising a recessed surface portion and a raised surface portion therein; and an adhesive layer in the recessed surface portion in an amount such that the adhesive does not extend above the raised surface portion thereby forming an exposed raised surface portion. In use, the carrier film recovers upon exposure to heat thereby allowing the adhesive in the recessed surface portion to contact a substrate. The heat-activatable adhesive article can be positionable, repositionable, or both.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: December 31, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Clyde D. Calhoun, David C. Koskenmaki