Patents Examined by D. R. Zirker
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Patent number: 5084348Abstract: An adhesive composition and accompanying tape wherein the adhesive is a water-soluble, pressure-sensitive adhesive mass consisting ofa) 100 parts by weight of at least one water-soluble copolymer of 55 to 90%-wt of at least one vinylcarbonic acid, 5 to 35%-wt of at least one hydroxyalkyl (meth-) acrylate, 1 to 15%-wt of at least one N-substituted (meth-)- acrylamide derivative of the formula ##STR1## in which R.sub.1 and R.sub.2 are the same or different and can represent an alkyl wherein one of R.sub.1 and R.sub.2 can also be a hydrogen atom, and R.sub.3 is a hydrogen atom or a methyl group, and 0.05 to 10%-wt of at least one vinylcarbonic acid salt,b) 50 to 200 parts by weight of at least one water-soluble softener including a polyoxyalkylene group having a molecular mass of up to 1000 andb) 0.1 to 8 parts by weight of a cross-linking agent.Type: GrantFiled: January 12, 1990Date of Patent: January 28, 1992Assignee: Lohmann GmbH & Co. KGInventors: Zbigniew Czech, Jorg Wehmann
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Patent number: 5084119Abstract: A liquid tight seam for an overlapping seam of two waterproof elastomeric membranes of a roof covering and the method of forming the seam. The overlapped edge portions of the two membranes are sealed by an intervening adhesive layer. A second adhesive layer is applied along the seam and covers adjacent exposed areas of the two membranes and stepped edges thereof which form the seam. Next, a bead of sealant is applied along the seam and over adjacent portions of the second adhesive layer. This seam and method eliminates washing and cleaning the seam areas with solvents before applying the sealant thereby enhancing seam quality and strength.Type: GrantFiled: October 17, 1990Date of Patent: January 28, 1992Assignee: Bridgestone/Firestone, Inc.Inventor: Daniel L. Barksdale
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Patent number: 5080972Abstract: A tape for sampling a surface to determine the amount of particulate matter which has settled thereon. The tape is constructed of a polymeric film backing and a smooth, pigmented adhesive coating. A grid pattern is printed directly on the outer surface of the adhesive coating. In this manner, the tape may be applied directly to the surface to be sampled, and particulates will adhere to the outer surface of the adhesive coating. The particulate level may then be determined according to the average number of particulates in a given square formed by the grid pattern.Type: GrantFiled: August 30, 1989Date of Patent: January 14, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Leroy J. Herauf
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Patent number: 5079058Abstract: Disclosed is a patterned film forming laminated sheet comprising a multi-layer construction prepared by successively laminating a release sheet layer (1), a pressure-sensitive adhesive layer (2), a base sheet layer (3), and a patterned film layer (4) or further laminating a pigmented print layer (5), said patterned film layer (4) being prepared by a process which comprises coating a fluid coating composition containing a powdery magnetic material on one side of the base sheet layer (3) to form a fluid film, and acting a magnetic force on the powdery magnetic material contained in the fluid film in a fluid state to form a pattern.Type: GrantFiled: March 2, 1990Date of Patent: January 7, 1992Assignee: Kansai Paint Co., Ltd.Inventors: Takeshi Tomiyama, Masahiro Endo, Sadaaki Hashimoto, Kenji Maeda
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Patent number: 5077118Abstract: A stamping foil comprising:(a) a biaxially oriented polyester film containing as a first component from 0.01 to 0.5% by weight of spherical silica particles having an average particle diameter of from 0.03 .mu.m and smaller 0.3 .mu.m and a particle diameter ratio defined as a ratio of long diameter/short diameter of from 1.0 to 1.2, and as a second component from 0.002 to 0.2% by weight of spherical silica particles having an average particle diameter of from 0.6 to 3 .mu.m and a particle diameter ratio defined as a ratio of long diameter/short diameter of from 1.0 to 1.2, provided that the content of said second component is the same as or less than the content of said first component,(b) a release layer provided on one surface of said biaxially oriented polyester film (a), and(c) a cover layer provided on siad release layer (b).Type: GrantFiled: September 7, 1990Date of Patent: December 31, 1991Assignee: Teijin LimitedInventors: Kinji Hasegawa, Yuzuru Izumi, Yoji Murakami
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Patent number: 5073452Abstract: A film for print lamination is described which comprises a biaxially drawn polypropylene film having a heat-adhesive layer provided on one side thereof, the surface of said heat-adhesive layer having a wet tension not smaller than 34 dyne/cm, said heat-adhesive layer being comprised of a composition comprising:(a) 100 parts by weight of a first component consisting of an ethylene methyl methacrylate copolymer having a melt flow rate of from 5 to 500; and(b) from 5 to 50 parts by weight of a second component selected from the group consisting of polyethylene and an ethylene-methyl methacrylate copolymer and having a melt flow rate of from 0.05 to 3.0.This film for print lamination is used to laminate over a printed surface of a printed matter by application of heat and pressure to obtain a laminated product having a good gloss.Type: GrantFiled: May 9, 1990Date of Patent: December 17, 1991Assignee: Toray Industries, Inc.Inventors: Junya Satou, Masatsugi Murakami, Kikuji Sasaki
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Patent number: 5071704Abstract: A controlled release device useful for the release of vapors or liquids is described. The device is a multilayered laminate consisting of a reservoir layer which incorporates an active compound, such as a perfume or fragrance or insect repellant, an impermeable membrane layer adjacent the reservoir layer and a diffusion rate limiting membrane layer adjacent the reservoir layer. The device preferably includes an adhesive layer for adhering the device to skin or a surface and an ornamental decorative layer.Type: GrantFiled: June 13, 1990Date of Patent: December 10, 1991Inventor: Fariba Fischel-Ghodsian
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Patent number: 5069969Abstract: A sandwich type composite adhesive construction in a simpler form, composed of a central release liner having a permanent adhesive layer on one side thereof and a pressure sensitive adhesive layer on the other side preferably separated therefrom by a release coat or member, and at least one release member on said adhesive layers but in a more complex form containing additional carrier layers or strengthening members including at least one or more support layers between two layers of permanent pressure sensitive adhesive. This adhesive construction provides a product, such as a pipe insulation that has unique properties and is cost effective.Type: GrantFiled: February 28, 1990Date of Patent: December 3, 1991Assignee: Morgan Adhesives Co.Inventors: Jack M. McClintock, Gerald H. Knittel
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Patent number: 5064717Abstract: Disclosed are an adhesive sheet comprising a release sheet base material, an undercoat layer formed on the release sheet base material, a release agent layer formed on the undercoat layer, an adhesive layer formed on the release agent layer and a surface sheet formed on the adhesive layer, the adhesive sheet being characterized in that the undercoat layer comprises a water-dispersible acrylate or methacrylate copolymer resin having an emulsifier content of about 2 to about 10 wt. % based on the total amount of the monomers used for preparing the copolymer and which resin has a glass transition temperature of about -60.degree. to about 20.degree. C., and that the release sheet base material having the undercoat layer formed thereon, as a whole, has a bulk density of up to 1.0 g/cm.sup.3, and a process for preparing a release sheet comprising a release sheet base material, an undercoat layer and a relase agent layer.Type: GrantFiled: April 25, 1990Date of Patent: November 12, 1991Assignee: Kanzaki Paper Manufacturing Co., Ltd.Inventors: Hideaki Suzuki, Kenji Hosoyama, Shuichiro Takeda, Rinzo Kamikura
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Patent number: 5064713Abstract: An elastomeric adhesive composition useful in resurfacing applications is provided. The composition includes a liquid dispersion of a polar latex resin binder, a chemical plasticizer, a volatile glycol ether solvent and a thickening agent. The binder is an emulsion of water and a polyvinyl acetate homopolymer with a polyvinyl alcohol protective colloid and is present in a concentration effective in adhering a resurfacing fabric to a surface wetted with the composition. The chemical plasticizer acts to plasticize and tackify the latex resin binder. The thickening agent is present in an amount effective to modify the viscosity of the composition so that it will not flow once applied to a surface. In addition, the invention comprehends a resurfacing composition and a method of resurfacing.Type: GrantFiled: January 14, 1991Date of Patent: November 12, 1991Assignee: Lindsay Finishes, Inc.Inventors: Donald C. DuLaney, Robert H. Lindsay
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Patent number: 5063106Abstract: There is provided a plasticizer-resistant film, and such film is combined with a plasticizer-resistant, pressure-sensitive adhesive layer. The film is a blend of certain polyvinyl chlorides and chlorinated polyethylenes. The adhesive includes a polyacrylate.Type: GrantFiled: February 21, 1989Date of Patent: November 5, 1991Assignee: Avery Dennison CorporationInventors: O. V. Nieuwenhuize, F. de Grunt, S. de Vissser, R. Vos
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Patent number: 5059479Abstract: A pressure-sensitive adhesive emulsion composition, characterized in that it is a pressure-sensitive adhesive emulsion composition containing the ingredients (A) and (B) below; the content of ingredient (B) is set at 1-70 solid parts per 100 solid parts by weight of the emulsion composition.(A) A polymer derived from at least one compound selected from a group including alkyl acrylates, alkyl methacrylates, and vinyl compounds, and having a glass transition temperature in the range of -60.degree. C. to -30.degree. C.(B) A bituminous emulsifier with an average particle diameter of the emulsified particles of 0.5-3.0 .mu.m.Type: GrantFiled: December 29, 1989Date of Patent: October 22, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Hajime Yuyama, Fumio Maekawa, Kazuo Umekage
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Patent number: 5049445Abstract: A masking tape (10), for example for spray-painting, comprises a strip (11) of tearable material such as paper having an upper face, a lower face; a first pressure-sensitive adhesive layer (12) covering said lower face of said strip from one side edge thereof to the opposite side edge; a second pressure sensitive layer (13) applied to said upper face of said strip, said second layer having a longitudinal extent co-extensive with that of said strip and a transverse extent less than half that of said strip and being positioned close to one edge (11B) of said strip; and a release liner (14) covering said second adhesive layer. The masking tape is to be fixed to a surface to be painted in such a position that the free-edge (11A) of said strip forms a border to the area to be painted. The release liner is removed and a masking paper is fixed to said adhesive layer and cut clean along the inner edge thereof.Type: GrantFiled: November 30, 1988Date of Patent: September 17, 1991Assignee: Intermall ABInventors: Ola Arvidsson, Magnus Hilleby
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Patent number: 5045401Abstract: Multicomponent thermoplastic resin blends are disclosed which have a nonisothermal crystallization half life of less than thirty seconds. Especially preferred are three component resin blends comprising a maleic anhydride grafted HDPE, an unmodified LLDPE copolymer having a density between about 0.905 and 0.93 g/cc, and an unmodified LLDPE copolymer having a density between about 0.89 and 0.92 g/cc. These thermoplastic resin blends can be used as the adhesive layer in multilayer structures. They are especially useful in blown film multilayer structures and they show particularly good adhesion to polar substrates, e.g., EVOH substrates.Type: GrantFiled: December 21, 1989Date of Patent: September 3, 1991Assignee: The Dow Chemical CompanyInventors: Ricky L. Tabor, Gerald M. Lancaster, Michael W. Potts, Thomas I. Butler
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Patent number: 5045393Abstract: A method for providing a polyolefin resin substrate with an adhesive coating having high adhesiveness and thermal resistance comprising the following steps:1. coating the surface of said polyolefin substrate with a primer film having at least 2 hydroxy groups, and2. coating said primer film with a molten layer of moisture setting hot melt urethane adhesive composition comprising a urethane prepolymer containing at least 2 NCO radicals.Type: GrantFiled: August 16, 1989Date of Patent: September 3, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Shuichi Kumanoya, Makoto Yamamoto, Katsumi Sasaki, Masahiko Nishimura
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Patent number: 5041320Abstract: A sports surface comprises a pile fabric (11) and a layer of coated grains (13) in which the pile is partly submerged. The grains are of sand coated with a rubber.Type: GrantFiled: January 3, 1989Date of Patent: August 20, 1991Assignee: Hepworth Minerals & Chemicals LimitedInventors: William C. S. Meredith, Martin J. Luxton
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Patent number: 5035328Abstract: A composite guide strip structure is disclosed, for use as a tear opening element for a container wall. A pair of guide strip elements are mounted on a carrier strip in spaced-apart, parallel relation. The carrier strip is of a material that tears easily, at least in the lengthwise direction, while the guide strips are resistant to tear in the lateral direction. The composite structure is adhesively secured to the outside wall of a container, either by adhesively securing the carrier strip itself, or by adhering the spaced-apart guide strip elements, with the carrier strip on the outside. A tear band is normally mounted on the interior surface of the container wall, opposite the spaced between the respective guide strip elements. The composite structure advantageously is supplied in roll form, for easy, convenient application to the container wall, enabling a plurality of guide strip elements to be applied in a single structure.Type: GrantFiled: June 12, 1990Date of Patent: July 30, 1991Inventor: Myun H. Kim
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Patent number: 5032438Abstract: An adhesive tape for die bonding is disclosed, comprising a release film having a release layer on at least one side of a support and an adhesive layer attached to said release layer, wherein the exposed surface of said adhesive layer is a mirror-like surface having an average roughness on center line (Ra) of not more than 2.5 .mu.m and a maximal height (Rmax) of not more than 20 .mu.m.Type: GrantFiled: May 25, 1989Date of Patent: July 16, 1991Assignee: Tomoegawa Paper Co., Ltd.Inventors: Yukinori Sakumoto, Atsushi Koshimura, Masaki Tsushima
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Patent number: 5024888Abstract: A hot melt adhesive and a laminar structure fabricated from a blend comprising a modified or unmodified ethylenic copolymer, a modified or unmodified butene-1 homopolymer or copolymer, a stabilizer and one or more of: a tackifying resin compatible with the major amount of modified polymer, a wax, and atactic polypropylene.Type: GrantFiled: July 30, 1990Date of Patent: June 18, 1991Assignee: Shell Oil CompanyInventors: Charles C. Hwo, Simone Mostert
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Patent number: 5024868Abstract: A dust control mat (5) with pile and a caoutchouc or plastic backing (6) comprises a layer (1) of pile and a nonwoven primary bottom thereof being fixed to the backing material (6). A flexible reinforcing layer consists of fibers selected from nonwoven materials and spun-bonded materials, the fibers of which have been heat fixed and crosslinked, and whereby at least a part of at least one of the side edges of the reinforcing layer (3) has been exposed on the surface of the backing (3) within the piled area.Type: GrantFiled: October 19, 1989Date of Patent: June 18, 1991Assignee: Milliken Denmark A/SInventor: Helle B. Petersen