Heat Sealable Patents (Class 428/347)
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Publication number: 20100178496Abstract: A transparent pressure-sensitive adhesive product for optical use, a transparent pressure-sensitive adhesive laminate for optical use and a manufacturing method thereof, which afford, upon affixing, stable peeling site selectivity between release sheets and both faces of a transparent pressure-sensitive adhesive product, and which accomplish, in a stable and easy manner, peeling site selectivity on both faces of the transparent pressure-sensitive adhesive product during rework involving re-affixing. The transparent pressure-sensitive adhesive product for optical use has an adhesive face (a) and an adhesive face (b) of dissimilar tackiness, and is formed of an addition reaction-type silicone gel.Type: ApplicationFiled: November 11, 2008Publication date: July 15, 2010Applicant: TAICA CORPORATIONInventors: Masahiko Masuda, Yoriko Nakata, Hidetomo Kawai
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Publication number: 20100163173Abstract: Disclosed herein is a heat bonding film, which includes a hot-melt adhesive film and a protective layer disposed on the hot-melt adhesive film. The hot-melt adhesive film exhibits an adhesive property after being heated. While an outer surface of the protective layer is heated, the heat bonding film may be attached onto an object through the adhesive property provided by the hot-melt adhesive film.Type: ApplicationFiled: December 24, 2009Publication date: July 1, 2010Inventor: Ju-Chen CHIU
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Patent number: 7740923Abstract: A package material with a tamper evident feature and methods of manufacture thereof, are disclosed herein. The package comprises a colored primer or lacquer coating applied along a portion of a seal and further comprising a peelable sealant. When opened the peelable sealant is separated from the portion of the seal containing colored primer or lacquer and removes a section of the coating, thus providing a visual indication that the package has been opened.Type: GrantFiled: April 12, 2006Date of Patent: June 22, 2010Assignee: Kraft Foods R & D, Inc.Inventors: Ronald H. Exner, Olav Dagestad
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Publication number: 20100143678Abstract: A heat-sealable roll or pouch stock laminated barrier material is disclosed and comprises: a compostable first layer; a compostable, heat-sealable second layer; and a metallized compostable film disposed between the first and second layers. The first layer can be selected from: (i) compostable film; and (ii) a coating layer and a paper layer, the paper layer being disposed between the coating layer and the metallized compostable film. The first layer can be secured to the metallized compostable film with an adherent selected from adhesive and extrudate. The second layer can be selected from a hermetically-sealable film and an extrudate. When present, the hermetically-sealable film is secured to the metallized compostable film with an adherent selected from adhesive and extrudate.Type: ApplicationFiled: December 3, 2009Publication date: June 10, 2010Inventors: Bill Reilly, Chris Mayes
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Publication number: 20100112263Abstract: A label for application to a surface having at least one compound curve is provided. The label comprises a heat shrinkable film having an inner surface and outer surface and a layer of pressure sensitive adhesive on the inner surface of the heat shrinkable film.Type: ApplicationFiled: April 4, 2008Publication date: May 6, 2010Applicant: AVERY DENNISON CORPORATIONInventors: James P. Lorence, Craig W. Potter, Mitchell J. Rackovan, Richard D. Pastor, William L. Cone
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Patent number: 7695856Abstract: A battery of the present invention is provided with positive and negative terminals led out of the battery and one or more sealing members filled between the positive and negative terminals and the battery. Each of the sealing members is provided with one or more resin layers, each of which is provided with one or more non-molecular-oriented resin layers.Type: GrantFiled: June 17, 2003Date of Patent: April 13, 2010Assignee: Nissan Motor Co., Ltd.Inventor: Kyoichi Watanabe
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Publication number: 20100062250Abstract: An appliqué having anti-corrosive adhesive is provided by embodiments of the present invention. This appliqué includes a thin polymer film and a pressure sensitive adhesive. The pressure sensitive adhesive backs the thin polymer film and includes corrosion-inhibiting additives. These corrosion-inhibiting additives reduce or eliminate the need for a chromated primer layer beneath the appliqué. Elimination of a chromated primer layer has environmental advantages as well as cost benefits through the elimination of a processing step. Additionally, environmental benefits are realized by eliminating the toxic effects often associated with the use of chromated primers.Type: ApplicationFiled: August 23, 2006Publication date: March 11, 2010Inventors: Jacob A. Johnson, Jefre H. Cockerham, James R. Reed, William J. Betush, Bill F. Campbell
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Patent number: 7670687Abstract: The present invention relates to a biaxially oriented polyester film, which a) has a base layer B, which includes a yellow dye and a red dye, b) has, on each side of the base layer B, at least one layer (A or C) which includes, based on the weight of layer A or C, less than 0.01% by weight of the yellow dye and less than 0.01% by weight of the red dye, and c) the film has one absorption maximum lying at from 400 to 500 nm in the UV/visible spectrum from 400 to 800 nm. Preferred dyes are anthraquinone dyes and perinone dyes; the polyester is preferably PET. After metallization or lamination, the film has a gold appearance, and is a suitable packaging material.Type: GrantFiled: June 13, 2008Date of Patent: March 2, 2010Assignee: Mitsubishi Polyester Film GmbHInventors: Oliver Klein, Matthias Konrad, Holger Kliesch, Bodo Kuhmann
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Publication number: 20100038025Abstract: The invention relates to sheet materials, having at least one layer of an adhesive mass, within which heat can be produced, wherein the adhesive mass is a hot melt adhesive mass and a PTC resistor.Type: ApplicationFiled: February 1, 2008Publication date: February 18, 2010Inventors: Klaus Keite-Telgen-Büscher, Christina Hirt, Jara Fernán-Dez-Pastor
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Patent number: 7611770Abstract: Films containing a sealant layer composition comprising: (1) polyethylene homopolymer, and ethylene/alpha-olefin copolymer, ethylene vinyl acetate copolymer, and ethylene/acrylate copolymer; and (2) elastomer, plastomer, ionomer, and carboxyl-modified polyethylene; when sealed to another outer film layer comprising at least one member selected from the group consisting of ionomer, ethylene/acid copolymer, ethylene/vinyl acetate copolymer and ethylene/acrylate copolymer, have been discovered to provide a seal strength comparable to an ionomer to ionomer seal.Type: GrantFiled: April 21, 2006Date of Patent: November 3, 2009Assignee: Cryovac, Inc.Inventors: Thomas Duane Kennedy, Gordon Vincent Sharps, Jr., Richard Keith Watson
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Patent number: 7588813Abstract: The present invention provides a display strip easy for automating the process of bonding product-enclosed bags and capable of bonding the product-enclosed bags once removed again.Type: GrantFiled: October 25, 2005Date of Patent: September 15, 2009Assignee: Ishida Co., Ltd.Inventors: Yoshio Iwasaki, Taro Hijikata
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Publication number: 20090218307Abstract: A label for removable application to an article such as a beverage bottle includes a backing layer (2) comprising a laminate of a bi-axially oriented polyester such as PET (12) and a bi-axially oriented polypropylene (14). The polyester film (12) has a lower coefficient of thermal expansion than the polypropylene film (14). Consequently, when the label is heated, it will tend to curl and this effect can be used to assist in the removal of the label from the article in a hot washing bath during recycling of the article.Type: ApplicationFiled: March 31, 2006Publication date: September 3, 2009Inventors: David J. Davies, Darren Hammonds
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Patent number: 7575791Abstract: There is disclosed a plurality of embodiments of composite webs of labels wherein there are labels on a pressure sensitive pressure-coated carrier web and wherein adhesive deadener coats the adhesive underlying the labels to enable the labels to be releasably adhered to the carrier web while leaving the carrier outside the peripheries of the labels non-tacky.Type: GrantFiled: July 20, 2005Date of Patent: August 18, 2009Assignee: Paxar Americas, Inc.Inventors: Paul A. Chamandy, Theodore S. Pinkard
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Patent number: 7563506Abstract: A fastening arrangement comprises a fastening element provided with a fastening portion having a planar outer side surface, and a hot-melt adhesive that can be melted in order to fasten the fastening element to a substrate. The fastening element is provided with a receiving recess that is open in the direction of the planar outer side surface. A retaining structure is provided in the region of the receiving recess. The hot melt adhesive is configured as a compact whose shape is adapted to the retaining structure such that the compact can be connected to the fastening element. The fastening arrangement can thus be prefabricated without incipient melting of the hot-melt adhesive.Type: GrantFiled: May 19, 2005Date of Patent: July 21, 2009Assignee: A. Raymond et CieInventors: Michel Bremont, Yves Papirer, Mathias Haensel, Ysuki Takenaka
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Patent number: 7556861Abstract: High frequency-weldable articles, such as sheets or yarns, include at least one high frequency-weldable part that is made from a modified polyethylene terephthalate (PET) material and that has a melting point ranging from 100° C. to 250° C. The modified PET material is prepared from a composition that includes terephthalic acid, ethylene glycol and a diol modifier. The diol modifier is selected from the group consisting of neopentanediol, 1,3-dihydroxy-2-methylpropane, 1,3-dihydroxy-2-methylpropane alkoxylate, 2,5-dimethyl-2,5-hexanediol, polyethylene glycol, and combinations thereof.Type: GrantFiled: October 22, 2004Date of Patent: July 7, 2009Assignee: Far Eastern Textile Ltd.Inventors: Ru-Yu Wu, Tsung-Hui Chao, Chih-Wei Chu
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Patent number: 7556850Abstract: A wiring circuit board at least contains an electric insulator layer and an electric conductor formed on the electric insulator layer so as to form a predetermined circuit pattern, which further comprises an adhesive layer formed by thermal hardening of the thermosetting adhesive and pressure-sensitive adhesive composition as described in the specification.Type: GrantFiled: August 11, 2006Date of Patent: July 7, 2009Assignee: Nitto Denko CorporationInventors: Miyoko Ikishima, Masahiro Ooura
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Patent number: 7537829Abstract: Multi-layer films that are suitable for packaging and having improved sealing properties are disclosed. Some embodiments may also provide a lower minimum sealing temperature. A soft polymer is blended in a core layer and a tie layer comprising the soft polymer and, optionally, another polymer. A sealable layer is provided on the side of the tie layer opposite the core layer. The multi-layer films may be transparent, contain a cavitating agent, or are pigmented to form an opaque film. Also, the multi-layer film may be metallized or coated with a barrier coating.Type: GrantFiled: April 1, 2005Date of Patent: May 26, 2009Assignee: ExxonMobil Oil CorporationInventors: Salvatore J. Pellingra, Jr., Michael J. Bader
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Patent number: 7514141Abstract: The invention relates to a biaxially oriented polyester film having a base layer (B) which comprises at least 80% by weight of a polyester comprised of from 55 to 90 mol % of units deriving from at least two aromatic dicarboxylic acids and of from 5 to 45 mol % of units deriving from at least one aliphatic dicarboxylic acid, where the total of the dicarboxylic-acid-derived molar percentages is 100. The film features ultimate tensile strength of ?100 N/mm2 and modulus of elasticity of ?3000 N/mm2.Type: GrantFiled: April 3, 2007Date of Patent: April 7, 2009Assignee: Mitsubishi Polyester Film GmbHInventors: Oliver Klein, Herbert Peiffer, Gottfried Hilkert
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Patent number: 7514131Abstract: An in-mold label includes a thermoplastic resin film substrate layer and a heat-seal resin layer. The label has a label body and a separable part. Tearable perforations are provided between the label body and the separable part. The adhesion strength between the separable part and a thermoplastic resin container is from 80 to 270 gf/10 mm, when the label is stuck to the container during in-mold production of the container. A lubricant is applied to from 55 to 80% of the surface area of the heat-seal resin layer of the separable part. The wettability index of both the thermoplastic resin film substrate layer surface and the heat-seal resin layer surface is from 34 to 73 mN/m.Type: GrantFiled: February 15, 2005Date of Patent: April 7, 2009Assignee: Yupo CorporationInventors: Takashi Funato, Takatoshi Nishizawa, Masaki Shiina
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Publication number: 20090075052Abstract: An adhesive tape for thermal welding on a polymeric substrate is disclosed. The adhesive tape comprises a spunbonded backing that is coated, at least partially, on one side with a pressure sensitive adhesive, preferably natural rubber or acrylate, wherein the adhesive includes fibers that do not melt in a thermal welding process. The spunbonded backing advantageously also contains polyester, preferably polyester and/or co-polyester fibers that have been surface-consolidated and/or embossed by a calender process. The composition of the tape disclosed herein provides for an especially sound physical connection when thermally welded to a wide variety of polymeric substrates.Type: ApplicationFiled: July 12, 2006Publication date: March 19, 2009Applicant: tesa AGInventor: Martin Hopf
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Patent number: 7504142Abstract: Film laminates for packaging applications having at least two polymer layers which are formed together as a coextruded blown film such that the first polymer layer is a surface layer relative to the film and comprises a heat-sealable material having a melt index of at least 20 g/10 min. The present invention further provides food packages formed from these film laminates.Type: GrantFiled: August 24, 2007Date of Patent: March 17, 2009Assignee: Curwood, Inc.Inventor: Christopher John Harvey
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Publication number: 20090068456Abstract: According to a first aspect of the present invention, there is provided a protective layer transfer sheet comprising: a substrate sheet; a heat resistant slip layer provided on one side of the substrate sheet; and a thermally transferable protective layer provided on at least a part of the other side of the substrate sheet opposite to the one side where the heat resistant slip layer is provided, the protective layer comprising a peel layer, a primer layer, and an adhesive layer formed in this order from the substrate sheet side, and the peel layer being formed of an acrylic copolymer resin having a solution acid value of 2 or less.Type: ApplicationFiled: September 2, 2008Publication date: March 12, 2009Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kazuhiro Masuda, Jiro Onishi, Chie Fujimoto
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Publication number: 20090068457Abstract: Provided is a protective sheet for a coating layer comprising a substrate sheet and provided thereon a pressure-sensitive adhesive layer, which can be applied as well to a coated surface insufficiently cured immediately after dried, and the pressure-sensitive adhesive layer described above comprises an addition reaction type silicone-based pressure-sensitive adhesive.Type: ApplicationFiled: February 27, 2007Publication date: March 12, 2009Applicant: Lintec CorporationInventor: Atsuhiro Tanaka
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Publication number: 20090061223Abstract: Disclosed is A gas barrier film comprising a substrate film and a barrier layer containing an organic region and an inorganic region on the substrate film, in which, when the organic region is provided on one surface of the gas barrier film, the outermost layer on the side with the organic region is an adhesive layer, or when the organic regions are provided on both surfaces of the gas barrier film, at least one outermost layer of the gas barrier film is an adhesive layer. The gas barrier film is capable of simplifying the working process with it and keeping its good gas-barrier property.Type: ApplicationFiled: September 3, 2008Publication date: March 5, 2009Applicant: FUJIFILM CorporationInventors: Jiro TSUKAHARA, Kazumori Minami, Yoichi Hosoya
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Patent number: 7476441Abstract: According to the present invention, a display strip with which the process of attaching product-enclosed bags can easily be automated and from which the product-enclosed bags can easily be detached without having their appearance degraded and a display strip and product assembly can be provided. The display strip according to the present invention is utilized to hold and align a plurality of product-enclosed bags vertically for the display. It comprises at least a substrate layer and a sealant layer with the sealant layer containing an ethylene-vinyl acetate copolymer and an adhesive promoting tackifier.Type: GrantFiled: December 2, 2004Date of Patent: January 13, 2009Assignee: Ishida Co., Ltd.Inventors: Yoshio Iwasaki, Yukio Nakagawa, Tadao Oota, Naoji Ichise
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Publication number: 20090004940Abstract: A textile complex includes a first textile layer, a second textile layer and a substrate for bonding the textile layers together, wherein the substrate includes a third textile layer, each of the faces of which are coated with a thermo-adhesive product network, and the substrate is inserted between the first and second textile layers so as to bond, by respectively laminating a face of the textile layers to a thermo-adhesive product network, the first and second textile layers together.Type: ApplicationFiled: December 6, 2005Publication date: January 1, 2009Inventors: Jean Lefebre, Vincent Festino
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Publication number: 20080311321Abstract: A flexible multilayer film for forming a container defining a liquid-tight chamber for storing a liquid is described here. The film comprises a first layer (1) and a second layer (2). The first layer (1) is a barrier layer, for example, a PCTFE layer, which is arranged inwardly of the second layer (2) as seen in a direction from the chamber of the container formed from the multilayer film. The second layer (2) is a septum layer, for example, a TPE layer, having self-sealing properties so as to seal around a hypodermic needle penetrating said film. As seen in the above direction an innermost surface (5) of the film is weldable onto itself and is preferably made of a weldable layer (3) comprising PE and/or PP.Type: ApplicationFiled: June 21, 2006Publication date: December 18, 2008Applicant: Novo Nordisk A/SInventors: Philip Albert Sparholt, Lasse Hansen
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Patent number: 7452595Abstract: A heat-sensitive adhesive material contains a substrate and a heat-sensitive adhesive layer that contains a thermoplastic resin and a solid plasticizer, and the heat-sensitive adhesive material is so configured as to be heated and applied to an adherend, wherein the heat-sensitive adhesive material exhibits such an adhesive strength to the adherend as to increase with time from immediately after applying the heat-sensitive adhesive material to the adherend.Type: GrantFiled: May 21, 2004Date of Patent: November 18, 2008Inventors: Mitsunobu Morita, Tomoyuki Kugo, Hiroshi Goto, Norihiko Inaba
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Patent number: 7442427Abstract: This invention relates to coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable from at least APET, the heatsealable and peelable top layer (A) consisting of a) 80-98% by weight of polyester and b) 2-10% by weight of inorganic and/or organic particles having an average diameter d50 of from 2.5 to 8.0 ?m (based on the mass of the top layer (A)), wherein c) the polyester being composed of 12-89 mol % of units which derive from at least one aromatic dicarboxylic acid and 11-88 mol % of units which derive from at least one aliphatic dicarboxylic acid, the sum of the dicarboxylic acid-derived molar percentages being 100, d) the ratio of particle size d50 and layer thickness dA of the top layer (A) being greater than 1.2 and e) the layer thickness of the top layer (A) dA being from 1.0 to 5 ?m. The invention further relates to a process for producing the film and to its use.Type: GrantFiled: September 29, 2004Date of Patent: October 28, 2008Assignee: Mitsubishi Polyester Film GmbHInventors: Herbert Peiffer, Matthias Konrad, Harald Mueller, Paul Broemmel
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Patent number: 7442437Abstract: The present invention provides an adhesive composition comprising a copolymer (a) of a methylmethacrylate (MMA) and/or a butylmethacrylate (BMA) and a styrene (St), also provides an adhesive composition comprising a mixture of an acrylic polymer (b) and a ketone resin, wherein the acrylic polymer (b) is at least one polymer selected from the group consisting of a poly MMA, a poly BMA, a MMA/BMA copolymer or a MMA/BMA/St copolymer, and also provides a thermal transfer sheet having a layer comprising the adhesive composition. The adhesive composition has excellent heat sealing characteristics and resistance to blocking when it is used for the formation of an adhesive layer, is also superior in miscibility with various organic or inorganic additives and allows these additives to exhibit their functions sufficiently when these additives are added and has high transparency.Type: GrantFiled: August 11, 2005Date of Patent: October 28, 2008Assignee: DAI Nippon Printing Co., Ltd.Inventors: Hideki Usuki, Naohiro Obonai
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Publication number: 20080262284Abstract: The present invention relates to a disposable article to prevent the misuse of a transdermal dosage form (FIG. 1(a)). The article is comprised of an outer layer (1) having an inner layer-facing side and an opposite side; an inner layer (3) having an outer layer-facing side and an opposite side, the inner layer (3) joined to the outer layer (1) to form one or more closed material reservoir (2) between the outer layer-facing side of the inner layer (2) and the inner layer-facing side of the outer layer (1); and adhesive (4) covering a first portion of the opposite side of the inner layer (3), wherein the adhesive (4) is a heat activated adhesive that changes color and/or is activated when the article is subjected to elevated temperatures, thereby sealing the transdermal dosage form within the article.Type: ApplicationFiled: June 27, 2008Publication date: October 23, 2008Applicant: PURDUE PHARMA L.P.Inventors: Geraldine Marcenyac, Mark Alfonso, Lane Gehrlein, Stephen Howard, Lino Tavares, Ronald Greenbaum, Seth Levy, Benjamin Oshlack
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Publication number: 20080233348Abstract: An adhesive tape comprising a hot-melt pressure sensitive adhesive layer that comprises a lattice pattern formed by at least two linear strips that intersect; wherein the lattice pattern forms a plurality of parallelogrammic openings, having a major diagonal line (A) and a minor diagonal line (B), wherein the ratio of the major diagonal line (A) of the opening to the minor diagonal line (B) thereof is from 15 to 1; the length of the major diagonal line (A) is from 0.5 mm to 10 mm; and the length of the minor diagonal line (B) is from 0.3 to 7 mm.Type: ApplicationFiled: March 19, 2007Publication date: September 25, 2008Inventors: Hironobu Ishiwatari, Donald H. Lucast
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Patent number: 7422782Abstract: The present invention describes a multilayer film suitable for use in packaging applications comprising at least a polymeric first layer having a first surface and an opposing second surface wherein the polymeric first layer comprises a heat-sealable, water-insoluble polyester; a polymeric second layer having a first surface and an opposing second surface and comprising a pressure-sensitive adhesive, wherein the second surface of the polymeric second layer is in contact with the first surface of the polymeric first layer and forms a peelable/resealable bond therebetween; and a third layer in contact with the first surface of the polymeric second layer.Type: GrantFiled: February 1, 2005Date of Patent: September 9, 2008Assignee: Curwood, Inc.Inventors: Edward L. Haedt, Paul J. Sheridan, Joseph J. Michels, Lynn M. Nett
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Patent number: 7413800Abstract: A peelable sealable co-extruded film, comprising: i. a skin layer capable of heat sealing against a rim of a container, to itself, or to another film and adapted to be peeled there from and comprising a hot melt adhesive resin; and ii. a core layer underlying said skin layer and comprising crystalline homopolymer polyethylene terephthalate; and a method for the preparation thereof.Type: GrantFiled: September 27, 2004Date of Patent: August 19, 2008Assignee: Terphane Inc.Inventors: Ronald C. Wood, Jr., Marcos Fernandes Vieira
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Publication number: 20080182472Abstract: The present invention provides a process for producing an oriented thermoplastic polyester resin sheet which is excellent in tensile strength, tencile modulas and heat resistance, and a light laminate-molded body using the same, which has a low linear expansion coefficient and is excellent in impact resistance, durability, easiness of handling, productivity, and others. A process for producing an oriented thermoplastic polyester resin sheet, which includes: pultrusion-drawing a thermoplastic polyester resin sheet in an amorphous state at a temperature from the glass transition temperature of the thermoplastic polyester resin?20° C. to the glass transition temperature of the thermoplastic polyester resin+20° C.; and then drawing the resultant uniaxially at a temperature higher than the temperature for the pultrusion-drawing. A laminate-molded body, wherein a thermoplastic resin layer is laminated on each of the surfaces of the resultant oriented thermoplastic polyester resin sheet.Type: ApplicationFiled: February 17, 2006Publication date: July 31, 2008Inventors: Shigeru Ogasawara, Hirotsugu Yoshida, Hisashi Eguchi, Ryuichi Matsuo
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Patent number: 7404994Abstract: A lidstock material suitable for sealing plastic containers that are retorted at elevated temperatures to sterilize their contents. The lidstock material comprises a substrate joined to a film comprising a mixture of a butene-1 polymer; high density polyethylene; polypropylene; and a powdered filler. The lidstock material is heat sealable, peelable, and retains high burst strength both during and after retorting at elevated temperatures.Type: GrantFiled: March 12, 2003Date of Patent: July 29, 2008Assignee: Reynolds Packaging LLCInventor: James A. Stevenson
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Adhesion-promoted , heatsealable and peelable polyester film, process for its production and its use
Patent number: 7396578Abstract: Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 60 to 99% by weight of polyester and b) from 1 to 10% by weight of inorganic and/or organic particles with a median diameter d50 of from 2 to 8 ?m, and where c) the polyester is composed of from 12 to 89 mol % of units derived from at least one aromatic dicarboxylic acid and of from 11 to 88 mol % of units derived from at least one aliphatic dicarboxylic acid, and the non-sealable surface of the film has been rendered adhesion-promoting. The films of the invention are suitable as a packaging material for foods and other consumable items, and as a lid film for APET/CPET or CPET trays.Type: GrantFiled: November 9, 2004Date of Patent: July 8, 2008Assignee: Mitsubishi Polyester Film GmbHInventors: Herbert Peiffer, Bart Janssens, Matthias Konrad, Andreas Stopp -
Publication number: 20080113191Abstract: The invention relates to a method of bonding two members together utilizing a stack of solid film adhesive and a layer of solid film adhesive, both disposed between the members. A pressure-applying device may be utilized to apply low pressure to force the members together. The pressure may force the stack to compress and expand in varying directions in order to substantially remove air-bubbles between the layer and one of the members. A heating device may be utilized to change the layer and the stack into liquid states in order to bond the members together with a void-free bond-line.Type: ApplicationFiled: November 9, 2006Publication date: May 15, 2008Applicant: THE BOEING COMPANYInventors: ARVID J. BERG, DONALD A. ANDERSON, PAUL S. GREGG, MICHAEL L. LEGGETT
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Patent number: 7368165Abstract: A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester and is less than 8 ?m in thickness. The copolyester consists essentially of repeat units of one or more aromatic dicarboxylic acids, one or more aliphatic dicarboxylic acids, and a stoichiometric amount of a glycol component consisting of one or more glycols selected from the group consisting of aliphatic glycols and cycloaliphatic glycols.Type: GrantFiled: June 16, 2005Date of Patent: May 6, 2008Assignee: DuPont Teijin Films U.S. Limited PartnershipInventors: Stephen William Sankey, Kenneth Evans, Mark Russell Hodgson
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Patent number: 7364786Abstract: The biaxially oriented polyester film of the present invention contains a polyester having a primary melting point of 245 to 265° C. as the main component and exhibits a drop bag strength index at 0° C. of at least 2.0 and a strength at break in the film longitudinal direction at 120° C. of at least 100 MPa. The film has superior heat resistance, mechanical strength, impact resistance, and bending resistance and is particularly suitable for packaging materials.Type: GrantFiled: September 10, 2003Date of Patent: April 29, 2008Assignee: Toray Industries, Inc.Inventors: Hiroyuki Tanaka, Kunimasa Tanaka, Ryosuke Matsui
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Publication number: 20080085386Abstract: The present invention provides an expandable heating sheet which does not lose its expansion property even when a heating composition thereof is hardened due to reaction with oxygen, which can be used while being fitted to a bendable portion such as an elbow or a knee, and which can be easily manufactured with efficiency, and a heating sheet bag in which the expandable heating sheet is hermetically sealed.Type: ApplicationFiled: October 5, 2007Publication date: April 10, 2008Inventors: ASAO AJIRI, Yoshiki Matsumoto
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Publication number: 20080063863Abstract: A selectively metallized heat transfer label for transfer to a substrate includes a support portion comprising a carrier layer and a release layer applied to the carrier layer, and a transfer portion comprising a protective layer applied to the release layer, a metallizable layer applied to the protective layer, a metal layer applied to the metallizable layer, a metal transferring adhesive layer applied to the metal layer and configured to adhere to both the metal layer and the desired substrate and a non-metal transferring ink layer applied to the metal layer and configured to adhere to the desired substrate but not to the metal layer. The protective layer and the metallizable layer can be formed from the same material, as separate layers. When heat and pressure are applied to the carrier layer using conventional heat transfer equipment, the metal transferring adhesive adheres to both the metal layer and the substrate while the non-transferring ink layer adheres only to the substrate.Type: ApplicationFiled: August 31, 2007Publication date: March 13, 2008Applicant: ILLINOIS TOOL WORKS, INC.Inventors: Michael B. Colella, Paul Giusto, Eileen M. Norris
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Publication number: 20080063835Abstract: The invention relates to: a label for in-mold forming having excellent suitability for delabeling which comprises a thermoplastic resin film base layer (I) and a heat-sealable resin layer (II) and in which the heat-sealable resin layer (II) has an adhesion strength as measured at 23° C. of 300 gf/15 mm or higher and an adhesion strength as measured at 90° C. of 290 gf/15 mm or lower; and a labeled resin container having the label bonded thereto.Type: ApplicationFiled: September 7, 2006Publication date: March 13, 2008Applicant: YUPO CORPORATIONInventors: Yasuo Iwasa, Masaki Shiina, Takatoshi Nishizawa
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Patent number: 7338708Abstract: A multilayer film is relatively thick has an oxygen transmission rate of at least 10,000 cc/mil/24 hour@STP. The film is particularly suited for the packaging of fresh seafood. The film has a first layer which is an outer film layer which serves as a heat seal layer, and a second layer which serves as a high O2-transmission layer. The first layer has a thickness of from 2 to 20 percent of a total thickness of the multilayer film. The second layer comprises at least one member selected from the group consisting of: (i) ethylene/butyl acrylate copolymer, (ii) homogeneous ethylene/alpha-olefin copolymer having a density of from 0.86 to 0.91 g/cc; (iii) heterogeneous ethylene/alpha-olefin copolymer having a density of from 0.89 to 0.91 g/cc; (iv) ethylene/methyl acrylate copolymer having a methyl acrylate mer content of from 20 to 24 mole percent; (v) ethylene/vinyl acetate copolymer having a vinyl acetate mer content of from 10 to 30 mole percent; and (vi) styrene butadiene block copolymer.Type: GrantFiled: March 5, 2003Date of Patent: March 4, 2008Assignee: Cryovac, Inc.Inventors: Daniel S. Wilburn, Clifford A. Kendrick
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Publication number: 20080014429Abstract: This invention relates to a biaxially oriented polypropylene (BOPP) film comprising a polyolefin-containing base layer with at least 1 weight percent recycled polyolefin material comprises polyhydroxy amino ether polymer (PHAE) and an amount of compatibilizing agent such that the laminate film has a gel count of less than 15 gels/80 in2. The laminate film could have an optional tie-layer which could comprise PHAE adhered to one side; the polypropylene film contains an amount of reprocessed PHAE-containing film and a compatibilizing agent to reduce significantly or eliminate visual defects such as gels, voids, etc. The use of the compatibilizing agent with the reprocessed PHAE also aids in improving subsequent biaxial film orientation and maintains film properties. The film of the embodiments of the invention has excellent appearance and aesthetic properties and can be suitable for transparent, white opaque, or metallized film applications depending on formulation.Type: ApplicationFiled: July 12, 2006Publication date: January 17, 2008Applicant: TORAY PLASTICS (AMERICA), INC.Inventors: Tien-Kuei Su, Scott Narkevicius
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Patent number: 7314669Abstract: The present invention relates to sealant films comprising a first sealant layer which readily and easily delaminates or peels from a second adjacent film layer. The first sealant layer and the second adjacent layer of the sealant film of the present invention comprise propylene or ethylene moieties wherein the propylene or ethylene moieties may be homopolymers or copolymers. The film structures of the present invention can be used independently, or laminated to a second film structure wherein the second film structure may comprise a single layer or multiple layers. The sealant films of the present invention can be heat sealed to a packaging component, such as a tray either as a single film structure or as a laminate comprising a second film structure. The sealant film structures of the present invention are particularly useful as retortable lidstock.Type: GrantFiled: February 5, 2003Date of Patent: January 1, 2008Assignee: Pechiney Emballage Flexible EuropeInventor: Deane Galloway
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Publication number: 20070287006Abstract: A thermoadhesive tape comprises weft and warp wherein at least one between the weft and warp comprises at least one filament of thermoadhesive fibre.Type: ApplicationFiled: May 10, 2007Publication date: December 13, 2007Inventor: Andrea Brambilla
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Patent number: 7288316Abstract: The present invention relates to a heat-sealable film which consists essentially of a cycloolefin copolymer (COC), the glass transition temperature (Tg) of the COC being within the range from 30 to 55° C. The film or sheet has excellent low temperature heat-sealing properties and processing characteristics. The film may be free standing or laminated to other thermoplastic polymer film or films at low temperatures. Alternatively, a COC polymer with Tg in the range 30 to 55° C. may be coextruded with other thermoplastic polymer or polymer films in a coextrusion process to form a heat sealable film. The film of the invention is suitable for packing foods or other consumable items.Type: GrantFiled: November 21, 2003Date of Patent: October 30, 2007Assignee: Topas Advanced Polymers, Inc.Inventor: Randy D. Jester
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Patent number: 7285335Abstract: Antimicrobial and antifogging polymeric films with preferable A/C/E structure useful for the food, medicine and agriculture applications as well as for other general packaging and non-traditional special applications. More preferably, antimicrobial and antifogging films having a A/B/C/E structure. Most preferably, antimicrobial and antifogging films having a A/B/C/D/E structure. A multilayer structure (having at least an skin layer (A) having antifogging and antimicrobial properties/ a core layer (C) / an outer layer (E) structure) for semi and biaxially oriented polyolefin based antifogging films having advantageous properties as compared with known and commercial films such as low values of haze, high values of sheen, lower longitudinal and transverse shrinkage, which provides high dimensional stability, and excellent antifogging and antimicrobial properties. Preferably the skin layer (A), having antifogging and antimicrobial properties, is electrical corona or flame treated.Type: GrantFiled: January 3, 2005Date of Patent: October 23, 2007Assignee: Polina Plastic of America, Inc.Inventors: Oktay Aral, Cumhur Buyukakinci, Zakir Rzaev
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Publication number: 20070237950Abstract: The invention relates to a biaxially oriented polyester film having a base layer (B) which comprises at least 80% by weight of a polyester comprised of from 55 to 90 mol % of units deriving from at least two aromatic dicarboxylic acids and of from 5 to 45 mol % of units deriving from at least one aliphatic dicarboxylic acid, where the total of the dicarboxylic-acid-derived molar percentages is 100. The film features ultimate tensile strength of ?100 N/mm2 and modulus of elasticity of ?3000 N/mm2.Type: ApplicationFiled: April 3, 2007Publication date: October 11, 2007Inventors: Oliver Klein, Herbert Peiffer, Gottfried Hilkert