Application To Opposite Sides Of Base Patents (Class 427/208)
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Patent number: 6686016Abstract: Hot melt thermoplastic adhesive is predeposited on a carrier strip having front and back release surfaces. The carrier strip is rolled into a coil compressing the thermoplastic hot melt into disks which may later be removed for use. The disks are spaced so that the carrier strip may be deformed to expose a single disk to a planar surface permitting simplified dispensing of the disks.Type: GrantFiled: April 18, 2002Date of Patent: February 3, 2004Assignee: Glue Dots International, LLCInventor: John P. Downs
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Publication number: 20040006151Abstract: A pressure sensitive adhesive comprising a P(A/C)-P(B)-P(A/C) block copolymer, wherein P(B) is a polymer formed from component B and component B comprises at least one monomer B1, P(B) having a glass transition temperature not higher than 0° C., P(A/C) represents a copolymer block of component A/C, which comprises at least two monomers A1 and C1, P(A/C) having a glass transition temperature of 20° C.-175° C. and C1 comprises at least one cross-linking-enabled functional group.Type: ApplicationFiled: June 23, 2003Publication date: January 8, 2004Inventors: Marc Husemann, Stephan Zollner
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Publication number: 20030219591Abstract: An article including: a porous substrate that includes a fibrous material; and a release coating disposed on the fibrous material of the porous substrate; wherein the release coating includes a thermoplastic silicone-containing polymer. A method of making an article, which method includes: providing a porous backing having a first major surface and a second major surface; applying a pressure sensitive adhesive to the first major surface of the porous backing; and applying an aqueous dispersion including a thermoplastic silicone-containing polymer to the second major surface of the porous backing to form a low adhesion backsize.Type: ApplicationFiled: May 16, 2002Publication date: November 27, 2003Applicant: 3M Innovative Properties CompanyInventors: Stephen W. Bany, James P. DiZio, Patricia J.A. Brandt, Janice R. Manore, Judith A. Green
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Patent number: 6652697Abstract: A method for manufacturing a copper-clad laminate includes the steps of forming first and second metal films on first and second carriers, forming first and second copper films on the first and second metal films, forming first and second semi-cured resin layers, stacking a first assembly of the first carrier, the first metal film, the first copper film and the first semi-cured resin layer on a second assembly of the second carrier, the second metal film, the second copper film and the second semi-cured resin layer, and vacuum hot pressing the first and second assemblies so as to complete cure and integrate the first and second semi-cured resin layers.Type: GrantFiled: December 3, 2001Date of Patent: November 25, 2003Assignee: Pioneer Technology Engineering Co., Ltd.Inventor: Chien-Hsin Ko
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Patent number: 6641922Abstract: An isocyanate adduct comprising the reaction product of a composition comprising in admixture a polyisocyanate, a silicone having dimethylsiloxane segments containing one or more of an isocyanate-reactive group bonded to said segments through an intermediate organic group, a reactant containing one or more of an isocyanate-reactive group, and one or more acid group or amine group, optionally an organic substance having one or more isocyanate-reactive groups, and compound providing counterion for said acid or amine group, wherein either the silicone, or the reactant, or both, have a single isocyanate-reactive group.Type: GrantFiled: May 2, 2001Date of Patent: November 4, 2003Inventor: A. Andrew Shores
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Patent number: 6613382Abstract: A method of manufacturing a plurality of note posters from a planar vinyl sheet having a printed surface and an opposing adhesive surface provides for first printing a plurality of images upon the printed surface. Once it has been printed, the planar vinyl sheet is laid in a horizontal position with the adhesive surface facing upwards, and a liquid polymer adhesive is poured onto the adhesive surface such that the liquid polymer adhesive spreads across and evenly covers the planar vinyl sheet to form a polymer adhesive layer. The planar vinyl sheet is then die-cut around each of the plurality of images, thereby forming the plurality of note posters. The polymer adhesive layer forms a tacky surface on each of the plurality of note posters useful for removably securing a paper note to a surface.Type: GrantFiled: December 22, 2000Date of Patent: September 2, 2003Inventor: Eunchang Lee
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Patent number: 6607630Abstract: The present invention concerns a device and method for making a roll of tissue using opposingly located adhesive applicators that apply adhesive to opposingly located anilox rolls. Adhesive is transferred from the anilox rolls to opposingly located print rolls. The print rolls apply a void-free layer of adhesive to opposing sides of a central ply which passes between the print rolls. As the central ply passes between opposingly located nip rolls, at least one additional ply is laminated to one side of the central ply and at least one other ply is laminated to the opposing side of the central ply.Type: GrantFiled: January 31, 2001Date of Patent: August 19, 2003Assignee: Little Rapids CorporationInventors: Gerald Charles Bartman, Theodore Bruce Rydell, Joseph M. Celmer, Michael Lee Bloedorn
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Patent number: 6590019Abstract: An water based adhesive useful for bottle labeling applications. The adhesive contains styrene maleic anhydride and rosin, and provides a formulation with alkali sensitivity at moderate temperature together with cold water resistance.Type: GrantFiled: May 4, 2001Date of Patent: July 8, 2003Assignee: National Starch and Chemical Investment Holding CorporationInventors: Cecile Dheret, Patrick J. Hayes, Samantha J. Smith, Sarah L. Bladon, John Harrington, Melissa Sardina
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Patent number: 6582830Abstract: An article includes a first member shaped and dimensioned for application to a rigid substrate. The first member is a decorative sheet which is adhesively bound to the substrate. The article further includes a polymeric adhesive tape securing the first member to the substrate, wherein the polymeric adhesive tape includes a heat activated, first polymeric adhesive layer which is activated at a first temperature and a heat activated, second polymeric adhesive layer which is opposite the first polymeric adhesive layer and is activated at a second temperature different from the first temperature.Type: GrantFiled: December 28, 2000Date of Patent: June 24, 2003Assignee: Premark RWP Holdings, Inc.Inventors: Thomas J. Nelson, Robert R. Krebs
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Patent number: 6551654Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: October 14, 1997Date of Patent: April 22, 2003Assignee: 3M Innovative Properties CompanyInventors: Don Everett Branch, Bernard Raymond Pierre
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Patent number: 6531564Abstract: A water-soluble polymeric adhesion promoter is represented by the following formula (I): wherein R is a hydrogen atom, a hydroxyl group or a lower alkyl group having 1 to 4 carbon atoms, and m and k are numbers selected such that m/k is in the range from about 1/0.001 to about 1/0.1, and such that that the polymer (I) has a weight average molecular weight of about 3,000 to about 600,000.Type: GrantFiled: June 28, 2002Date of Patent: March 11, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Se Yong Oh, Chan Eon Park, Sang Min Song
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Patent number: 6524701Abstract: A pressure sensitive adhesive sheet comprising a substrate, an intermediate layer superimposed thereon and a pressure sensitive adhesive layer superimposed on the intermediate layer, characterized in that the pressure sensitive adhesive layer exhibiting an elastic modulus at 23° C. ranging from 5.0×104 to 1.0×107 Pa, the intermediate layer exhibiting an elastic modulus at 23° C. which is not greater than the elastic modulus at 23° C. of the pressure sensitive adhesive layer, or the intermediate layer exhibiting an elastic modulus at 40° C. of less than 1.0×106 Pa. At the time of working of the back of an adherend having a surface whose unevenness height differences are large, this pressure sensitive adhesive sheet is preferably stuck to the adherend surface to thereby protect it during the working.Type: GrantFiled: November 19, 1999Date of Patent: February 25, 2003Assignee: Lintec CorporationInventors: Takeshi Kondo, Kazuhiro Takahashi, Yoshihisa Mineura
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Patent number: 6521289Abstract: A dimensionally stable carpet underlay manufactured from needle-punched fibers arranged to form a non-woven felt fabric, to which an acrylic latex pressure sensitive adhesive is applied by a dipping process that coats the surfaces of the fibers and fills the interstices between the fibers. The acrylic adhesive is applied to the felt substrate in a dip and squeeze operation, which passes a felt web through a trough of adhesive and then through an excess adhesive removal station, after which, a protective releasable polymer film is applied to the exposed adhesive surfaces prior to curing step. The acrylic adhesive is selected to exhibit sufficient tackiness to secure the carpet in place, but allowing for easy removal and not leaving a residue after removal of the carpet from the underlay or removal of the underlay from the underlying supporting floor surface.Type: GrantFiled: February 21, 2001Date of Patent: February 18, 2003Inventor: Oliver A. Wyman
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Patent number: 6517900Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: October 14, 1997Date of Patent: February 11, 2003Assignee: 3M Innovative Properties CompanyInventor: Bernard Raymond Pierre
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Patent number: 6485600Abstract: Process for the radiation crosslinking of double-sided adhesive tapes, in which a backing material coated on both sides with adhesives is irradiated asymmetrically from both sides with different doses in an irradiation means.Type: GrantFiled: September 30, 1999Date of Patent: November 26, 2002Assignee: tesa AGInventors: Hermann Neuhaus-Steinmetz, Christian Harder, Maren Klose, Dietlind Thalacker, Werner Karmann
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Patent number: 6436732Abstract: The invention is directed to the application of viscous materials, such as the adhesives used in LOC die attach processes, to a lead frame by forming a film of viscous material and then bringing a portion of the lead frame and the film of viscous material into contact with one another. In one exemplary embodiment of the method of the invention, the viscous material is drop dispensed, sprayed, pumped or otherwise placed on a carrier surface, the material is spread to a uniform film thickness and then brought into contact with the die attach portion of the lead frame. One embodiment of the apparatus for applying the viscous material includes (1) a carrier surface, (2) a plurality of orifices in fluid communication with the carrier surface, and (3) a pump for pumping the viscous material through the orifices to the carrier surface. The apparatus may also include a metering blade for spreading the material to a uniform film thickness over the carrier surface.Type: GrantFiled: January 17, 2001Date of Patent: August 20, 2002Assignee: Micron Technology, Inc.Inventor: Syed Sajid Ahmad
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Patent number: 6436530Abstract: A single- or double-sided pressure-sensitive adhesive tape having an elastomeric backing layer, wherein a) the framework substance of the backing layer consists essentially of natural rubber or of a mixture of natural rubber and at least one styrenebutadiene rubber, b) an essential constituent of the backing layer is an electron beam-crosslinkable, polyfunctional crosslinker, c) a pressure-sensitive adhesive is applied to one or both sides of the backing layer, and d) between backing layer and pressure-sensitive adhesive there is an interlayer of a polyamide or of a mixture of polyamides.Type: GrantFiled: December 9, 1998Date of Patent: August 20, 2002Assignee: tesa AGInventors: Bodo Szonn, Worner Kluge-Paletta, Werner Karmann
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Patent number: 6426138Abstract: The present invention provides an adhesive film for electronic parts, for example, an adhesive agent in a tape BGA (Ball Grid Array) or &mgr;-BGA (trade name) package, in which embedding and adhesion to copper patterns on circuit boards are excellent, in which feeding and punching quality in the film state are superior, and which can reduce stress caused by thermal expansion difference between a circuit board and a reinforcing metal board or an IC chip. Adhesive film for electronic parts comprises a resin layer in which the dynamic modulus of elasticity at −30 to 125° C. is from 1 to 30 MPa and adhesive layers are coated on surfaces of the resin layer.Type: GrantFiled: August 13, 1999Date of Patent: July 30, 2002Assignee: Tomoegawa Paper Co., Ltd.Inventors: Hitoshi Narushima, Toshihiro Nakajima
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Publication number: 20020098347Abstract: A single- or double-sided pressure-sensitive adhesive tape having an elastomeric backing layer, characterized in thatType: ApplicationFiled: December 9, 1998Publication date: July 25, 2002Inventors: BODO SZONN, WORNER KLUGE-PALETTA, WERNER KARMANN
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Publication number: 20020041956Abstract: A double eyelid forming tape or string that can form an eyelid with a clear fold easily and safely in a simple manner, and a method of manufacturing the same is provided.Type: ApplicationFiled: October 3, 2001Publication date: April 11, 2002Inventor: Hideyuki Nojiri
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Patent number: 6333073Abstract: A polymeric adhesive tape including a first polymeric adhesive layer which is a heat activated film and a second polymeric adhesive layer which is a heat activated film is disclosed. The tape is designed for use in the fabrication of articles wherein the polymeric adhesive tape secures a first member to a support surface. A method for bonding adjacent sheets to a substrate is also disclosed. In accordance with the disclosed method, a substrate is prepared for application of a first sheet and a second sheet, a polymeric adhesive tape is positioned on the substrate at a position along which the seam between the first sheet and the second sheet will be located, the first sheet and the second sheet are laid on the substrate such that the seam between the first sheet and the second sheet lies along the polymeric adhesive tape, and the adhesive tape is heated along the seam to bond the substrate, adhesive tape, first laminate and second laminate.Type: GrantFiled: February 25, 1999Date of Patent: December 25, 2001Assignee: Premark RWP Holdings, Inc.Inventors: Thomas J. Nelson, Robert R. Krebs
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Patent number: 6312820Abstract: Improved autodeposited coatings on metallic surfaces are formed by contacting the metallic surfaces with an autodepositing composition comprising an acidic aqueous coating solution containing dispersed solid resin particles of either an internally stabilized or externally stabilized vinylidene chloride polymer, an exemplary internally stabilized polymer being prepared from vinylidene chloride and a monomeric surfactant which includes an inorganic ionizable group, and an exemplary externally stabilized polymer being prepared from vinylidene chloride and a reactive comonomer, the resulting resin particles having surfactant adsorbed thereon, said autodeposited coatings having extremely good corrosion resistant properties without treatment with a reaction rinse such as a chromium rinse.Type: GrantFiled: June 6, 1995Date of Patent: November 6, 2001Assignee: Henkel CorporationInventor: Wilbur S. Hall
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Patent number: 6309504Abstract: Paper stock (e.g. about 3 mils thick) is highly calendered to form a paper label substrate having first and second faces, with indicia imaged on the first face, a coating of adhesive release material over the imaged indicia, and a pressure sensitive adhesive on the second face. The release coating may be silicone release coating, and the adhesive permanent acrylic adhesive. The paper stock label substrate desirably has a moisture content of between about 6-8%, the release coat and adhesive sealing the moisture within the paper stock. The pressure sensitive adhesive is applied to a blow molded plastic article while the article has a temperature of above 120° F. The article is cooled so that the label conforms to the surface of the article without visible flaws (such as lifted edges, air bubbles, or puckering).Type: GrantFiled: June 12, 1997Date of Patent: October 30, 2001Assignee: Moore Business Forms, Inc.Inventor: Joseph W. Langan
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Patent number: 6299945Abstract: Release liners and processes for making the same are disclosed. The release liners include no more than about 1.5 micrograms/square centimeter of nonreacted silicone materials (extractables). The release liners are prepared using solvent coating of radiation curable silicone release materials.Type: GrantFiled: January 28, 1999Date of Patent: October 9, 2001Assignee: Loparex Inc.Inventors: William J. Mertz, Danny Charles Thompson, Katherine Yiu-Kit Leung
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Patent number: 6280840Abstract: Adhesive tape for a bond which can be redetached without residue or damage by pulling, having a backing coated on one or both sides with a self-adhesive composition, characterized in that a) a self-adhesive composition whose ratio of tear strength to stripping force (peel strength) at a peel angle of less than 10° to the bond surface is greater than 1.2:1 is applied to at least one of the two sides of the backing, b) the backing has been subjected to controlled pretreatment/damaging in such a way that the detachment force (stripping force) is lower than that of a similar self-adhesive tape with a backing which has not been so pretreated/damaged, and c) the tear strength of the backing is insufficient for redetachment without residue or damage.Type: GrantFiled: April 20, 1999Date of Patent: August 28, 2001Assignee: Beiersdorf AGInventors: Bernd Lühmann, Andreas Junghans
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Patent number: 6265032Abstract: This invention permits formation of a magnetic coating excelling in the degree of orientation in spite of a decrease in the thickness thereof and ensures impartation of a high degree of packing and high durability to the magnetic layer of a small thickness because of the infallible presence of a backcoat layer in an undried state (particularly a wet state) while the magnetic layer is in an undried state (particularly a wet state). It also allows efficient formation of a backcoat layer which used to impose a heavy load on the conventional process of manufacture. Preferably, this invention has the calendering work performed in the in-line system such that the surface quality of the magnetic layer may be exalted by improving the operational efficiency of the calendering step and, as a result, the loss of the applied layer of the paint which used to occur during the course of the calendering step in the conventional separate line may be decreased.Type: GrantFiled: December 26, 1996Date of Patent: July 24, 2001Assignee: TDK CorporationInventors: Shigeo Kurose, Akira Somiya
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Patent number: 6261685Abstract: An adhesive sheet not tacky at ordinary temperatures, exhibiting strong adhesion and high heat resistance by heating under low pressure for a short period of time, having no problem of adhesive protrusion and excellent in storage stability, which comprises a base material having provided on one side or both sides thereof at least one layer of a thermosetting adhesive comprising (1) a non-tacky polymer of a monomer mixture comprising from 70% to 99% by weight of a (meth)acrylic ester represented by formula (I), a homopolymer of which has a glass transition temperature of −30° C.Type: GrantFiled: September 21, 1999Date of Patent: July 17, 2001Assignee: Nitto Denko CorporationInventors: Kazuhito Hosokawa, Masahiro Oura
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Patent number: 6231922Abstract: A release coating composition containing about 50 to about 75 wt. % of an epoxy functional silicone; about 8 to about 25 wt. % of a reactive solvent; about 5 to about 25 wt. % of a reactive diluent; about 6 to about 12 wt. % of a wax-treated silica powder; and, about 2 to about 4 wt. % of a photoinitiator is disclosed. The composition is useful in preparing a low-gloss release coating for use on linerless labels.Type: GrantFiled: December 16, 1999Date of Patent: May 15, 2001Assignee: Monarch Marketing Systems, Inc.Inventor: James R. Kline
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Patent number: 6200832Abstract: The invention is directed to the application of viscous materials, such as the adhesives used in LOC die attach processes, to a lead frame by forming a film of viscous material and then bringing a portion of the lead frame and the film of viscous material into contact with one another. In one exemplary embodiment of the method of the invention, the viscous material is drop dispensed, sprayed, pumped or otherwise placed on a carrier surface, the material is spread to a uniform film thickness and then brought into contact with the die attach portion of the lead frame. One embodiment of the apparatus for applying the viscous material includes (1) a carrier surface, (2) a plurality of orifices in fluid communication with the carrier surface, and (3) a pump for pumping the viscous material through the orifices to the carrier surface. The apparatus may also include a metering blade for spreading the material to a uniform film thickness over the carrier surface.Type: GrantFiled: March 22, 1999Date of Patent: March 13, 2001Assignee: Micron Technology, Inc.Inventor: Syed Sajid Ahmad
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Patent number: 6194063Abstract: The present invention provides a heat-conductive and pressure-sensitive adhesive sheet comprising an electrical insulating plastic film having formed on one or both of the surfaces thereof (1) at least one thin layer composed of an inorganic material selected from the group consisting of ceramics, metals and metal oxides other than ceramics, and (2) a pressure-sensitive adhesive composition layer formed on the thin layer. The heat-conductive and pressure-sensitive adhesive sheet is excellent in heat-conductivity and pressure-sensitivity, results in no trouble such as complicated procedures in the production process or worsened working environment, exhibits good adhesion between the base material and the pressure-sensitive adhesive composition layer, scarcely undergoes anchoring fracture between the base material even after allowing to stand at high temperatures for a long time, and has good heat resistance.Type: GrantFiled: January 5, 1999Date of Patent: February 27, 2001Assignee: Nitto Denko CorporationInventors: Masahiro Oura, Kazuyuki Kitakura, Takao Yoshikawa
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Patent number: 6180166Abstract: A method of manufacture for an adhesive-based system to removably stick relatively flat articles on large area surfaces. A cured pressure-sensitive adhesive is coated on both sides of a central flat, flexible support scrim in a zoned thickness pattern which includes sufficient, continuous thickness such that the system is well suited to the removable installation of many types of articles having rough surface textures including, but not limited to, floor coverings such as woven and double-backed carpets having backs of a relatively rough texture and unitary backed carpet having a rough latex or polymeric coating and no applied secondary scrim. The adhesive is cured in situ but remains pressure sensitive.Type: GrantFiled: March 31, 2000Date of Patent: January 30, 2001Inventors: Benny R. Wood, Howard Burchett, Jr.
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Patent number: 6162534Abstract: A stretch releasing adhesive article for removably adhesively bonding an object to a surface includes a stretch release adhesive strip and a secondary release member. The stretch release adhesive strip includes a first adhesive end portion having oppositely facing major surfaces arranged to adhesively bond with the object and the surface and includes a non-adhesive tab portion. The secondary release member includes oppositely facing adhesive major surfaces having temporary or repositionable adhesive which allows the adhesive article to be repositioned on the surface and object prior to adhesively bonding the stretch release adhesive strip to the surface and object. The adhesive strength of the secondary release member is sufficient to maintain the secondary release member in adhesive contact with the object and surface when the stretch release adhesive strip is stretched during the removal process.Type: GrantFiled: August 31, 1998Date of Patent: December 19, 2000Assignee: 3M Innovative Properties CompanyInventor: Michael D. Hamerski
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Patent number: 6129983Abstract: Pressure-sensitive double-sided self-adhesive tape comprising a backing which is coated on both sides with pressure-sensitive adhesive compositions and which is composeda) to a proportion of up to 50% by weight, in particular from 30 to 40% by weight, of a crosslinked, unfoamed polyurethanei) formed from hydroxyl-functionalized polybutadiene, polyesterdiol, polyestertriol, polyesterpolyol, polyetherdiol, polyethertriol or polyetherpolyol, polyetherdiamine, polyethertriamine, polyetherpolyamine and monohydric alcohol (monool), monofunctional amine (monoamine), polyethermonool, polyethermonoamine or from products derived from the four last-mentioned groupsii) and from diisocyanate or chemically derived isocyanate,iii) the polyurethane being free from plasticizer,b) to a proportion of from 50 to 70% by weight of fillers,c) and, if desired, further auxiliaries.Type: GrantFiled: July 29, 1998Date of Patent: October 10, 2000Assignee: Beiersdorf AGInventors: Uwe Schumann, Kirstin Weiland, Wolfgang Schacht
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Patent number: 6121166Abstract: A product and method of manufacture for an adhesive-based system to removably stick relatively flat articles on surfaces. A cured pressure-sensitive adhesive is coated on both sides of a central flat, flexible support scrim in a zoned thickness pattern which includes sufficient, continuous thickness such that the system is well suited to the removable installation of many types of articles having rough surface textures including, but not limited to, floor coverings such as woven and double-backed carpets having backs of a relatively rough texture and unitary backed carpet having a rough latex or polymeric coating and no applied secondary scrim.Type: GrantFiled: July 21, 1998Date of Patent: September 19, 2000Inventors: Benny R. Wood, Howard Burchett, Jr.
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Patent number: 6106941Abstract: A multi-component adhesive system for adhering polar surfaces to non-polar surfaces comprising: (a) a non-polar adhesive layer for bonding to a non-polar surface; and (b) polar adhesive layer bonded to said non-polar adhesive layer for bonding to a polar surface.Type: GrantFiled: July 29, 1998Date of Patent: August 22, 2000Assignee: Adco Products, Inc.Inventors: Dennis K. Fisher, James F. Wood, Stephen J. Eder
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Patent number: 6099972Abstract: A fabric-free belt has an oriented polyamide layer (1) as a tension layer. A rubber layer (2, 3) is arranged in the form of a laminate on both sides of the oriented polyamide layer (1). The rubber layers (2, 3) contain at least 1 part by weight, based on 100 parts by weight of rubber, of resorcinol, phenol, cresols or mixtures thereof and adhere directly to the oriented polyamide layer (1). An advantage of the invention is that no adhesion promoter coating has to be applied to the polyamide layer (1) or to the rubber layers (2, 3) for the production of the laminate.Type: GrantFiled: May 28, 1998Date of Patent: August 8, 2000Assignee: Habasit AGInventors: Werner Klumb, Burghardt Schmidt
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Patent number: 6096387Abstract: A self-wound, self-adhesive, resealable tamper-evident tape is provided. The tape is used to seal any container requiring a self-adhesive closure, such as bags or pouches, and provides clear visual evidence if the self-adhesive seal is peeled apart. The tape comprises a backing sheet, the upper surface of which is coated with a release layer, and the bottom surface with an adhesive. The release layer is relatively non-adherent to the adhesive so that the tape may be wound or rolled up without a separating liner. A non-visible patterned varnish layer is applied to the adhesive to create a hard surface onto which an colored ink layer is subsequently applied. The colored ink layer breaks or chips when the self-adhesive seal is peeled apart and retains this appearance if the tape is reapplied to seal the container, thereby providing visible evidence of tampering.Type: GrantFiled: July 21, 1999Date of Patent: August 1, 2000Assignee: Decker Tape Products, Co., Inc.Inventor: Thomas A. Decker
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Patent number: 6074704Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets, The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: June 4, 1998Date of Patent: June 13, 2000Assignee: 3M Innovative Properties CompanyInventors: Frederic Pierre Alain Le Riche, Don Everett Branch, Gregory Francis Stifter, Kim Kiyoko Tsujimoto, Mark Steven Vogel
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Patent number: 6048576Abstract: A method of producing an adhesive tape which can bond electronic parts at the environs of a lead frame, such as leads, diepads and radiant plates, semiconductor chips, to each other and which is superior in adhesiveness, thermal resistance and electrical properties. The adhesive tape is produced by coating on one side or both sides of a thermally resistant film an adhesive composition comprising a carboxylic group-containing acrylonitrile-butadiene copolymer ranging, in weight average molecular weight, from 5,000 to 10,000 with an acrylonitrile content of 5-50 weight %, a mixed epoxy resin selected from a set of bisphenol A-type epoxy and cresol novolak epoxy and a set of bisphenol A-type epoxy and phenol novolak epoxy, a compound having at least two intramolecular maleimide groups, an aromatic diamine compound, an epoxy-containing liquid silicon resin, a filler and a solvent and drying it.Type: GrantFiled: February 16, 1999Date of Patent: April 11, 2000Assignee: Saehan Industries IncorporationInventors: Jin Hwail, Ihm Dae Woo, Chi Sung Dae
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Patent number: 6037042Abstract: A label sheet comprises a substrate and an adhesive layer formed by applying an adhesive agent to a surface of the substrate, said adhesive layer being formed only on a limited area of the surface. With such an arrangement and if it is part of a larger label sheet or a multi-layer structure of label sheets, it can be stripped off easily from the remaining part. If perforations are formed in adhesive free areas, they do not produce any projections of the applied adhesive agent so that the final product can be handled with ease. Additionally, by forming an adhesive-repellent layer on the outer surface with an ink type adhesive-repellent agent, the overall manufacturing process can be simplified and the product is adapted to making by hand.Type: GrantFiled: July 11, 1997Date of Patent: March 14, 2000Assignee: Toppan Moore Co., Ltd.Inventors: Takahiro Kato, Yoshiyki Takemura, Tsutomu Sakai, Takeshi Hiwatari, Kenji Takahashi
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Patent number: 6004630Abstract: A silicone release composition having a non-gloss, i.e., matte finished, surface and a linerless label incorporating the silicone release composition. The release composition includes a crosslinked silicone-based polymer having microparticles of a polymeric wax at least partially embedded therein. The polymeric wax may be polytetrafluoroethylene, polypropylene or other polyolefin, or a hydrocarbon-based wax. The microparticles of polymeric wax cause incidental light to scatter upon reflection, giving the release composition surface matte appearance. This makes the release composition particularly useful for linerless labels on which bar coded information will be printed. Also, a method for producing linerless label stock. The method includes mixing an uncured silicone material with microparticles of a polymeric wax. The mixture is coated onto a substrate and exposed to UV radiation to cure or crosslink the silicone around the microparticles of wax.Type: GrantFiled: September 10, 1998Date of Patent: December 21, 1999Assignee: Moore Business Forms, Inc.Inventors: Michael Sanchez, Khaled M. Khatib, David K. Rice, II
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Patent number: 6001471Abstract: Double-sided stretchable adhesive tapes are described for use in conventional applications, particularly including the mounting or joining of an object to another surface. An improvement lies within the ability to control the timing of the debonding of both surfaces so that one adhesive surface releases before the other. The earlier release can be either on the object side or the surface side, depending on the desired effect. The present invention is applicable to all stretchable tape constructions including the use of plastic backing materials and/or elastic backing materials and allows such an object to be removed without risking substantial snap-back of the adhesive tape or catapulting of the object.Type: GrantFiled: September 30, 1997Date of Patent: December 14, 1999Assignee: 3M Innovative Properties CompanyInventors: James L. Bries, Michael D. Hamerski
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Patent number: 5985439Abstract: Described is a transfer web, whose upper side is coated with a first releasing agent and whose underside is coated with a second releasing agent, whereby the second releasing agent exhibits a significantly greater peel force than the first releasing agent. To expand the possible applications of the web, it is provided that the first releasing agent is coated with self-adhering pressure sensitive adhesive in order to transfer the pressure sensitive adhesive onto blanks (sheets) of paper or similar material.Type: GrantFiled: May 28, 1998Date of Patent: November 16, 1999Inventor: Johannes A. Ritter
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Patent number: 5942311Abstract: A non-slip mat, pad or coaster which is considerably thinner than present known and available pads, the mat or pad being formed from a thin plastic sheet having a lower surface with a tacky characteristic to provide a non-slip coefficient of friction; the mat or pad being formed from a suitable plastic material, such as polyvinyl, polyproplylene, polycarbonate, polystyrene or polyester, etc., and the lower surface is formed by coating the surface with a suitable ink, such as an ultra-violet ink, water-based ink or solvent-based ink containing a tackiness agent in the form of an acrylated polymer. The ink may be applied as a very thin firm of the ink adhesively joined to the underside of the plastic, or the ink is coated onto the undersurface of the pad or mat by silk screening, or in a multimaterial coating operation.Type: GrantFiled: July 3, 1997Date of Patent: August 24, 1999Assignee: Microthin Products, Inc.Inventor: Carl Scianna
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Patent number: 5916630Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).Type: GrantFiled: October 23, 1997Date of Patent: June 29, 1999Assignee: Minnesota Mining And Manufacturing CompanyInventors: Frederic Pierre Alain Le Riche, Bernard Raymond Pierre, Gregory Francis Stifter, Mark Steven Vogel
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Patent number: 5910335Abstract: A product comprising two or more parts which are made of a metallic material having different characteristics bonded with a resin paint. The two or more parts are brought into contact and held together by the adhesive property of the resin. The two or more parts are then bonded together by baking the two or more parts with resin paint applied thereto.Type: GrantFiled: April 30, 1997Date of Patent: June 8, 1999Assignee: Daido Tokushuko Kabushiki KaishaInventors: Teruyoshi Yokoyama, Hisashi Watanabe
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Patent number: 5904797Abstract: A process for adhering hydrophilic surfaces and thermoset resin surfaces comprising coating the hydrophilic surface with an aqueous solution containing methylacrylato-chromium complex and poly(vinyl alcohol) is disclosed.Type: GrantFiled: July 22, 1997Date of Patent: May 18, 1999Assignee: E. I. du Pont de Nemours and CompanyInventor: Joseph Zen-Hwa Kwei
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Patent number: 5891562Abstract: Described is a multi-layer, flexible transfer tape with a backing and an adhesive layer, wherein between the backing and adhesive layer a bonding agent-containing transfer layer is provided, which adheres more strongly to the adhesive layer than to the backing. With this a) the bonding agent-containing transfer layer and/or b) the adhesive layer contains fine hollow particles and a water-soluble, solid alcohol. Furthermore the invention relates to a suitable process for producing such a transfer tape as well as to special application possibilities of same, in particular in rolled-up form in a hand apparatus. In particular, when used it leads to a transferred layer in which fractures, in particular micro-cracks, are excluded, and in an improvement of the initial adhesion when the transfer tape is used again after it has been stored for a long time.Type: GrantFiled: November 17, 1997Date of Patent: April 6, 1999Assignee: Pritt Produktionsgesellschaft mbHInventors: Wolfhard Rutz, Wolfgang Giersemehl, Wolfgang Bauersachs, Karl-Heinz Weissmann, Lothar Titze
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Patent number: 5750192Abstract: A linerless label and method of production thereof are provided which result in a fully utilizable thermal transfer linerless label. A substrate of label material has first and second faces each having first and second substantially parallel first and second edges, and a coating of thermal transfer material substantially completely covers the first face. First and second adhesive release material patterns, such as strips of UV curable silicone, are disposed substantially along the first and second edges of the first face, and first and second adhesive patterns, such as strips of a permanent hot melt adhesive, are disposed substantially along the first and second edges of the second face in alignment with the silicone strips, the patterns covering less than fifty percent of the label faces. The width of the adhesive strips are less than the silicone strips.Type: GrantFiled: August 13, 1996Date of Patent: May 12, 1998Inventor: Douglas M. Smith
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Patent number: 5683806Abstract: An adhesive tape for electronic parts, comprising (a) a heat resistant base film, and (b) an adhesive layer laminated on at least one surface of said base film, said adhesive layer comprising(i) a resol type phenol resin, and(ii) an acrylonitrile/butadiene copolymer,in a proportion of from 100 to 500 parts by weight of said resol phenol resin per 100 parts by weight of said acrylonitrile/butadiene copolymer, said resol type phenol resin being selected from the group consisting of bisphenol A type resins, alkylphenol type resins, phenol type resins and their co-condensed type phenol resins which contain as the phenol component at least one member selected from the group consisting of bisphenol A, alkylphenols and phenol.Type: GrantFiled: October 30, 1996Date of Patent: November 4, 1997Assignee: Tomoegawa Paper Co., Ltd.Inventors: Yukinori Sakumoto, Shigeyuki Yokoyama, Akihiro Shibuya, Atsushi Koshimura