Three Or More Layered Diverse Packaging Materials Having At Least One Metal Layer Patents (Class 426/126)
-
Patent number: 5911665Abstract: A polymeric film and method for overcoming the problem of "pinholes" created in filled pouches by the harmonic motion occurring during transport of the filled pouches. The polymeric film composed of from about 5% to about 95% by weight of a first polymeric material having an elongation at break of more than about 500% in the machine direction and more than about 600% in the transverse direction, and from 5% by weight to about 95% by weight of a second polymeric material having a density of at least about 0.915 g/cm.sup.3 and selected from the group consisting of polyethylene and ethylene copolymers. The first polymeric material includes a very low density linear ethylene interpolymerized from ethylene and at least one alpha-olefin in the range of C.sub.3 -C.sub.10. The film may be fabricated into pouches and the pouches stacked for transportation.Type: GrantFiled: April 3, 1996Date of Patent: June 15, 1999Assignee: Tetra Laval Holdings & Finance SAInventors: Ramin Heydarpour, Sriram Venkatasanthanam, David Carl Schroeder
-
Patent number: 5897894Abstract: Microwave popcorn articles which upon microwave heating provide popcorn having enlarged salt particles that provide popped popcorn more reminiscent of at-home, stove-top prepared popped popcorn. The articles comprise any conventional microwave popcorn bag, kernel popcorn, fat and salt. At least 50% of the salt is essentially characterized by an enlarged particle size having a mean particle size of >400 .mu.m. Included are methods of preparing such microwave popcorn articles are disclosed wherein the coarse salt is added in a separate step after the fat and kernel popcorn have been added to the bag.Type: GrantFiled: December 29, 1997Date of Patent: April 27, 1999Assignee: General Mills, Inc.Inventor: Brian E. Glass
-
Patent number: 5871791Abstract: The invention relates to a packaging made up of at least one inner, containing an alcoholic or nonalcoholic beverage based on anethole, in which the inner foil of said packaging is made up of a film of polyamide including aromatic units.The packaging is preferably intended to contain weakly alcoholic beverages and the polyamide results from the polycondensation of meta-xylylenediamine with adipic acid.Type: GrantFiled: August 21, 1996Date of Patent: February 16, 1999Assignee: Pernod RicardInventors: Philippe Noble, Patrice Robichon
-
Patent number: 5861184Abstract: A process for thawing a frozen sushi product of a type packed by a plastic film by a microwave oven is provided. Each of a packed frozen sushi product of a type packed by a plastic film in which the entire sushi product is covered with the plastic film, and a frozen sushi product of a type packed by a plastic film in which an upper portion of a sushi material is covered with an aluminum foil, and the entire sushi product is covered with a plastic film with the aluminum foil located therebetween, can be thawed in a microwave oven by heating it by an electromagnetic wave heating to rise the temperature of an exposed side of a shaped form of boiled rice to 40.degree. C. or more, while rising the temperature of a contact area between the sushi material and the boiled rice portion to 15.degree. C.Type: GrantFiled: May 23, 1996Date of Patent: January 19, 1999Assignee: Polastar Company LimitedInventors: Yuji Ishino, Hironobu Kadoya
-
Patent number: 5782375Abstract: The invention concerns drawn and ironed cans and their fabrication process starting from a stratified or laminated metal-plastic construction (1) including a foil of plastic material on which adheres two exterior metal foils and such that the ratio of the thickness of the plastic material to the total thickness of metal is greater than 0.5. The forming of this laminate into a can body (5) includes first of all drawing in one or several steps, then ironing, preferably in four successive passes. The cans are intended in particular to contain beverages. The advantage of the process resides in less cost of primary materials for usage characteristics as good as those of entirely metal cans.Type: GrantFiled: October 29, 1996Date of Patent: July 21, 1998Inventors: Robert J. McHenry, Dominique Petit
-
Patent number: 5744247Abstract: An effective oxygen barrier which can substantially extend the shelf life of oxygen sensitive products comprising at least outer and inner plies of a polymeric material and a substantially anaerobic space between the two or more plies.Type: GrantFiled: December 6, 1995Date of Patent: April 28, 1998Assignee: The Pillsbury CompanyInventor: George Anderson
-
Patent number: 5582853Abstract: A multi-seal flexible recloseable package having a tapered product cavity formed in one of the package sidewalls has a generally wedged-shaped cavity into which a doubled-over shingled stack of the food product slices are sealed. The package has a first, peelable hermetic seal located next to an access edge of the product cavity and a second, recloseable seal positioned directly above the peelable seal. Vertical extensions of the package sidewalls are sealed together at their tops to form a third package seal which has a tamper-evident tear strip. One or more openings in the vertical package extensions allow the package to be supported on a display hook.Type: GrantFiled: January 3, 1995Date of Patent: December 10, 1996Assignee: Kraft Foods, Inc.Inventors: Todd S. Marnocha, Brian P. Lawless, Gerald O. Hustad
-
Patent number: 5534277Abstract: A multilayer film having a first layer including a blend of a crystalline nylon and a material which disrupts the crystallinity of the crystalline nylon; a second layer also including this blend; and a third intervening layer, between the first and second layers, including a material having a modulus lower than the modulus of the crystalline nylon, and having a crystallinity of less than 60%. The nylon blend layers, which can be two or more in the film, add toughness and stiffness, but also elastic recovery to the final film. The intervening layer or layers of a material with relatively low modulus and crystallinity aid in orientation of the film during manufacture, permitting the use of more of the crystalline nylon than would be practical if only a single nylon layer was used.Type: GrantFiled: December 9, 1994Date of Patent: July 9, 1996Assignee: W. R. Grace & Co.-Conn.Inventors: Ram K. Ramesh, Gerald B. Woods, Robert W. Campbell
-
Patent number: 5500303Abstract: An effective oxygen barrier which can substantially extend the shelf life of oxygen sensitive products comprising at least outer and inner plies of a polymeric material and a substantially anaerobic space between the two or more plies.Type: GrantFiled: September 24, 1992Date of Patent: March 19, 1996Assignee: The Pillsbury CompanyInventor: George Anderson
-
Patent number: 5458896Abstract: A non-destructive technique for examining the oxidative status of packaged, dry or intermediate moisture foods. In a preferred embodiment, the technique involves packaging the foods in an assembly comprising a container or pouch formed from a pair of sheets heat-sealed to one another along their peripheries. The sheets may each be a trilaminate comprising a polyethylene terephthalate outer layer, an aluminum foil middle layer and a polyolefin inner layer. One of the sheets is provided with a cut-out portion which serves as a light transmissive window. A device comprising a strip of polyethylene terephthalate which is coated on one side with a polyamide coating is mounted across the light transmissive window, with the polyamide coating facing in towards the interior of the pouch. The food within the pouch is stored within about 2 cm of the polyamide coating during oxidation.Type: GrantFiled: October 22, 1993Date of Patent: October 17, 1995Assignee: The United States of America as represented by the Secretary of the ArmyInventor: William L. Porter
-
Patent number: 5455089Abstract: A packing container for cooking retort-sterilized content obtained by press-forming a laminate material which comprises a surface-treated steel foil, a primer layer of a composition of a polyamideimide and an epoxy resin provided on at least one surface of said steel foil, and an overcoating layer of a resin composition containing a composition of a polyamideimide and an epoxy resin, and a fluorine-type resin in an amount of from 60 to 300 parts by weight 100 parts by weight of said composition an provided on said primer layer. The packaging container is capable of safely preserving the content for extended periods of time without requiring any particular means such as refrigeration. And at the time when it is to be eaten after opened.Type: GrantFiled: December 28, 1992Date of Patent: October 3, 1995Assignee: Toyo Seikan Kaisha Ltd.Inventors: Takaaki Mochida, Toshifumi Tanabashi, Muneki Yamada
-
Patent number: 5455086Abstract: A blank for a paperboard container is provided on one of its surfaces with a layer of food-contacting polymethylpentene. The container formed from the blank, as by bending the blank along fold lines, requires one or more overlapped joints such as the usual manufacturer's joint. To overcome the non-stick properties of the polymethylpentene layer, the layer is flame treated so that it will adhere to a conventional water based, FDA approved adhesive and thereby make possible the formation of a seam or other overlapped joint or joints. Flame treatment is restricted to portions of the area of the polymethylpentene layer that are involved in the formation of the overlapped joint or joints. Alternatives to flame treatment include corona treatment, solvent treatment or treatment of the polymethylpentene surface with a solvent based primer.Type: GrantFiled: September 10, 1993Date of Patent: October 3, 1995Assignee: International Paper CompanyInventors: James R. Quick, James E. Martin
-
Patent number: 5415910Abstract: An inner layer, i.e. liner, for a generally tubular, multilayered dough container comprising a laminated web suitable for being helically wound into a tubular geometry and which includes a plurality of layers, the innermost of such web layers providing improved bonding characteristics for the liner, hence improved containment and sealing of the dough, and a container including such liner.Type: GrantFiled: June 7, 1994Date of Patent: May 16, 1995Assignee: International Paper CompanyInventor: Gary H. Knauf
-
Patent number: 5405663Abstract: A laminate for use in microwave cooking which includes a susceptor formed by depositing a thin layer of microwave-interactive material on a plastic base sheet, and then extrusion bonding that susceptor to a plastic coated paper sheet, without the use of an adhesive.Type: GrantFiled: November 12, 1991Date of Patent: April 11, 1995Assignee: Hunt-Wesson, Inc.Inventors: William E. Archibald, Cynthia G. Scrimager
-
Patent number: 5405629Abstract: A multi-seal flexible recloseable package having a tapered product cavity formed in one of the package sidewalls has a generally wedged-shaped cavity into which a doubled-over shingled stack of the food product slices are sealed. The package has a first, peelable hermetic seal located next to an access edge of the product cavity and a second, recloseable seal positioned directly above the peelable seal. Vertical extensions of the package sidewalls are sealed together at their tops to form a third package seal which has a tamper-evident tear strip. One or more openings in the vertical package extensions allow the package to be supported on a display hook.Type: GrantFiled: February 4, 1994Date of Patent: April 11, 1995Assignee: Oscar Mayer Foods CorporationInventors: Todd S. Marnocha, Brian P. Lawless, Gerald O. Hustad
-
Patent number: 5352466Abstract: An easy open tabbed package made of a flexible laminate material comprises a product enclosure having side walls, a bottom portion and an overlapping top portion. The overlapping top portion includes opposing flaps having a sealable region wherein a hand-peelable heat seal can be applied and a raised grippable tab means integral with the sealable region of each flap. The package is designed to enclose a product such as roast and ground coffee which can be vacuum-packed and peelably sealed inside the flexible laminate enclosure. The tab means, which preferably comprises a wave-shaped raised tab, is constructed integrally with the peel-seal region and greatly facilitates opening of the package by pulling outwardly from the center.Type: GrantFiled: October 15, 1991Date of Patent: October 4, 1994Assignee: Kraft General Foods, Inc.Inventor: Michael E. Delonis
-
Patent number: 5316777Abstract: A lid which is to be heat-sealed on a container, including a laminated sheet composed of a base layer, an adhesive layer, a metallic layer, and a heat-sealable resin layer, in which the base layer includes a single layer of a stretched resin film having many microvoids or a laminate containing at least the stretched resin film, the lid having an indication of the direction of stripping, including a lug provided at the periphery thereof or a print thereon, in such a manner that the indicated direction of stripping should be set within a range of .+-.45.degree. with respect to the direction of greatest thermal expansion coefficient of the base layer when heated from 30.degree. C. up to 80.degree. C. at a rate of temperature rise of 10.degree. C./min for 5 minutes. When hot water is poured into a container with the lid partly stripped, the lid is heated by the steam to close the container without assistance.Type: GrantFiled: April 16, 1992Date of Patent: May 31, 1994Assignees: Oji Yuki Goseishi Co., Ltd., Tokai Aluminum Foil Co., Ltd.Inventors: Takashi Toyoda, Yasuji Hosono, Takashi Funato, Takashi Miyaji, Yukio Kohama, Kazunori Yamada, Toshiaki Watanabe, Chiaki Kanai
-
Patent number: 5221548Abstract: A method of preparing a rosin baked potato by wrapping a whole potato in a wrapper formed from a rosin impregnated cellulosic substrate laminated to a flexible sheet and having perforations provided to allow steam to vent as the potato is baked in a heating apparatus.Type: GrantFiled: September 23, 1991Date of Patent: June 22, 1993Inventor: Daniel P. Walton, Jr.
-
Patent number: 5217768Abstract: A susceptor composite and related packaging devices employing the susceptor composite comprising a plurality of heat sealable layers is disclosed. The susceptor composite is adhesiveless and is used in food packages for heating and cooking food products in a microwave oven. In one preferred embodiment, a first substrate of amorphous polyester has a metallic microwave absorptive layer deposited on one of its surfaces. A dimensionally stable layer that includes a heat sealable material is heat sealed to at least one of the first substrate and microwave absorptive layer. The heat sealable film can be applied in a pattern and can also be applied using different heat-sealing temperatures to provide selective microwave absorption to the susceptor composite of the invention.Type: GrantFiled: September 5, 1991Date of Patent: June 8, 1993Assignee: Advanced Dielectric TechnologiesInventors: Glenn J. Walters, Gordon E. Walters
-
Patent number: 5213227Abstract: A container is made of a laminated material that includes a tin layer which is exposed on the inner surface side of the container. Oxygen remaining in the container and included in the content is trapped by the reducing action of tin, and the content is prevented from being oxidized. Further, the remaining enzymes are de-activated and flavor can be excellently retained.Type: GrantFiled: June 4, 1991Date of Patent: May 25, 1993Assignee: Toyo Seikan Kaisha Ltd.Inventors: Masayasu Koyama, Toshifumi Tanahashi, Kanemichi Yamaguchi, Toshio Goryoda
-
Patent number: 5206044Abstract: A wrapper for preparing a rosin baked potato by wrapping a whole potato in a wrapper formed from a rosin impregnated absorbent cellulosic substrate laminated by rosin to a flexible sheet and allowing melted rosin to be retained around the potato as the potato is baked in a heating apparatus.Type: GrantFiled: October 26, 1992Date of Patent: April 27, 1993Inventor: Daniel P. Walton, Jr.
-
Patent number: 5167974Abstract: A package is provided for enclosing a proteinaceous product under vacuumized and hermetically sealed conditions. The package has a peelable hermetic reclosure and a body member of semi-rigid preformed plastic with a first planar marginal portion and a central portion shaped to provide a packaging chamber. The package also has a flexible dimensionally stable base member having a corresponding second planar marginal portion and a central portion to provide a closure for said packaging chamber. The two planar marginal portions are adhered together face-to-face by an adhesive to provide at least a portion of the hermetic seal wherein said adhesive is a high molecular weight pressure sensitive hot-melt adhesive having a viscosity of between about 5,000 and about 100,000 centipoise at 300.degree. F. and said adhesive provides a peelable hermetic reclosure.Type: GrantFiled: December 4, 1991Date of Patent: December 1, 1992Assignee: Oscar Mayer Foods CorporationInventors: Paul E. Grindrod, Ray H. Griesbach, Darrell G. Cornish
-
Patent number: 5059436Abstract: A package for heating food in a microwave oven includes at least one web which is a laminate comprising a dielectric layer (1), a microwave interactive layer (2) a structural layer (4). The package has a package seam (14) wherein at least one thickness of the, or another web, is joined with a second thickness.Type: GrantFiled: January 4, 1990Date of Patent: October 22, 1991Assignee: Leigh-Mardon Pty. LimitedInventor: John F. Clark
-
Patent number: 5041295Abstract: A method and apparatus for crisping the surface of a food substance in a microwave oven is disclosed. A thin film susceptor is positioned close to the surface of a food substance. The susceptor heats when it is exposed to microwave radiation. The susceptor preferably is a thin film of metal deposited on a polyester substrate layer. In one embodiment, heating the susceptor causes the polyester layer to shrink, thereby simultaneously creating openings in the susceptor to allow moisture to escape, and breaking the conductivity of the susceptor so that it becomes less responsive to microwave radiation and substantially "turns off." In an alternative embodiment, passageways are pre-cut in the thin film of metal. A single surface of the food substance is made crisp in this manner, while the opposed surface is exposed to the microwave oven atmosphere.Type: GrantFiled: July 6, 1987Date of Patent: August 20, 1991Assignee: The Pillsbury CompanyInventors: Michael R. Perry, Dennis A. Lonergan, Belinda K. Ash, Anthony B. Taylor
-
Flexible, internally pressurizable package, method of using same and liquid product packaged therein
Patent number: 4997661Abstract: Disclosed is a flexible package made of plastic and capable of standing by itself, comprising a generally cylindrically-shaped body, comprised of a flexible plastic film; a first cover part at one end of the cylindrically-shaped body; and a second cover part at the opposite end of the cylindrically-shaped body, wherein the cover parts are bonded to the plastic film by heat-sealing. Also disclosed is a packaged liquid product, in particular a product under gas pressure, and a method for producing the packaged product.Type: GrantFiled: May 22, 1986Date of Patent: March 5, 1991Assignee: Hoechst AktiengesellschaftInventors: Horst Kromer, Rolf Mueller, Walter H. Alban, Klaus-Juergen Hiltmann -
Patent number: 4977031Abstract: A packing material, generally in sheet form, is made from a combination of a support sheet and a water-retentive material that is intimately connected to the support sheet. Moisture or exudate originating from a product enclosed by the packing material is absorbed and retained by the water-retentive material without affecting the physical strength of the support sheet or the packaged product. In a preferred embodiment, the support sheet is made of paper or a polymeric material, such as polyethylene, and the water retentive material is formed from polyacrylonitrile, or an acrylonitrile based co-polymer, treated with an alkaline aqueous solution of aliphatic or cycloaliphatic monofunctional or polyfunctional alcohols that have melting points greater than or equal to 110.degree. C. The packaging material is ideal for the packaging of moisture sensitive foods, such as cheese.Type: GrantFiled: December 1, 1986Date of Patent: December 11, 1990Assignee: Societe Charentaise de Participations, S.A.Inventor: Robert Temple
-
Patent number: 4948640Abstract: The present invention relates to an improved composite barrier laminate for an improved container for citrus juices and other liquids. The container utilizes a paperboard barrier laminate for the containment of essential oils and the prevention of losses of vitamin C. The laminate makes use of an inner barrier layer of a heat-sealable oxygen and flavor oil barrier material to enhance the barrier properties of the laminate as well as an extremely thin low density polyethylene food contact layer to provide a resultant secure homogenous non-polar heat seal.Type: GrantFiled: August 31, 1988Date of Patent: August 14, 1990Assignee: International Paper CompanyInventors: Charles E. Gibbons, Robert L. Lanham, Joe L. Kinsey, Allan A. Whillock
-
Patent number: 4936935Abstract: Novel laminate structures incorporating a thin metal layer which is of a thickness capable of converting incident microwave energy into thermal energy. The thin metal layer produces a greater heating effect than is produced by the same metal layer directly supporated on a polymeric film layer. The laminate is useful in the microwave heating of a variety of food products.Type: GrantFiled: November 15, 1989Date of Patent: June 26, 1990Assignee: Beckett Industries Inc.Inventor: Donald G. Beckett
-
Patent number: 4927647Abstract: A flexible laminate film for packaging hygroscopic products, including foods, is disclosed in which the packaged contents do not adhere or stick to the inner surface of the package. The inner layer of the package laminate provides the anti-stick characteristic of the package and comprises a polystyrene foam.Type: GrantFiled: November 23, 1988Date of Patent: May 22, 1990Assignee: R. J. Reynolds Tobacco CompanyInventor: Jennifer A. Bailey
-
Patent number: 4925682Abstract: A simple coffee bean roasting device as disclosed which can be used as a container to store coffee beans in an airtight condition and is also capable of roasting the coffee beans easily and quickly by use of a home-use gas heater. The coffee bean roasting device is simple in structure and it is composed of a container of aluminum foil, a cover of a transparent cellophane, and a handle.Type: GrantFiled: January 31, 1989Date of Patent: May 15, 1990Assignee: Ai Shi Denshi Kogyo Kabushiki KaishaInventor: Isamu Miya
-
Patent number: 4904487Abstract: Corn kernels packaged within a bag can be popped within a microwave oven and then flavored with powdered cheese in two ways. In the first embodiment, the cheese powder is imcorporated in the bag with the corn kernels, oil or shortening, and other ingredient to be subjected to microwave. In the second embodiment, the powdered cheese is applied by sprinkling it on the ingredients within the bag after microwave corn popping, closing the bag, shaking it, and repeating the process several times. In both of these embodiments, when the cheese contacts the hot popcorn, it melts and adheres to the surface of the popcorn. To prevent the melted cheese from giving the popped corn a mottled appearance, a coloring material which generally corresponds to the color of the cheese powder is included as an ingredient in the bag of upoppped kernels. During microwave popping, the coloring is distributed in the bag and coats the popped corn. As a result, a cheese-flavored popcorn with a uniform, pleasing appearance is produced.Type: GrantFiled: March 29, 1988Date of Patent: February 27, 1990Assignee: Nabisco Brands, Inc.Inventors: Glenn D. LaBaw, Gerald D. Hebert, Hanan Reich
-
Patent number: 4904488Abstract: Corn kernels packaged within a bag can be popped within a microwave oven and then flavored in two ways. In the first embodiment, the flavoring is incorporated in the bag with the corn kernels, oil or shortening, and other ingredients to be subjected to microwaves. In the second embodiment, the flavoring is applied by sprinkling it on the ingredients within the bag after microwave corn popping, closing the bag, shaking it, and repeating the process several times. In both of these embodiments, when the flavoring contacts the hot popcorn, it melts and adheres to the surface of the popcorn. To prevent the flavoring from giving the popped corn a mottled appearance, a coloring material which generally corresponds to the color of the flavoring is included as an ingredient in the bag of unpopped kernels. During microwave popping, the coloring is distributed in the bag and coats the popped corn. As a result, a flavored popcorn with a uniform, pleasing appearance is produced.Type: GrantFiled: March 29, 1988Date of Patent: February 27, 1990Assignee: Nabisco Brands, Inc.Inventors: Glenn D. LaBaw, Gerald D. Hebert, Hanan Reich
-
Patent number: 4888222Abstract: The present invention relates to an improved container for food and non-food products. The container utilizes a novel paperboard barrier laminate structure which maintains an isolated gas environment in the container. The laminate makes use of high strength, heat-resistant and caulking polymer layers which prevent pinholes, cuts, or cracking of the barrier layers during blank conversion, package formation, and package distribution. In addition, the novel polymer resin layers act to caulk the seams and channels present in the carton providing a sealed leak free container.Type: GrantFiled: May 9, 1988Date of Patent: December 19, 1989Assignee: International Paper CompanyInventors: Charles E. Gibbons, Gerald A. Marano, James M. Kittrell, Allan A. Whillock, Robert L. Lanham, Donald Evans
-
Patent number: 4880701Abstract: The present invention relates to an improved container for food and non-food products. The container utilizes a novel paperboard barrier laminate structure which maintains an isolated gas environment in the container. The laminate makes use of high strength, heat-resistant and caulking polymer layers which prevent pinholes, cuts or cracking of the barrier layers during blank conversion, package formation, and package distribution. In addition, the novel polymer resin layers act to caulk the seams and channels present in the carton providing a sealed leak free container.Type: GrantFiled: May 9, 1988Date of Patent: November 14, 1989Assignee: International Paper CompanyInventors: Charles E. Gibbons, Gerald A. Marano, James M. Kittrell, Allan A. Whillock, Robert L. Lanham, Donald Evans
-
Patent number: 4874621Abstract: The present invention relates to packaging edible solid fats, and more particularly to a two-piece packaging system comprising an outer casing of container or similar rigid material, defining the overall shape of the package, and an inner sealed bag of a thin, flexible packaging material. In the practice of the present invention, the fats are heated to a molten state, introduced into the inner sealed bag, and allowed to cool and harden in the bag.Type: GrantFiled: February 4, 1987Date of Patent: October 17, 1989Assignee: Durkee Industrial Foods CorporationInventor: Thomas D. Loughrin
-
Patent number: 4861632Abstract: A laminated packaging material from which package type containers are fabricated for storing or transporting a variety of products ranging from dry food-stuffs to electronic equipment where maintenance of a dry environment is a requirement, comprising an outer imperforate water impervious layer, a middle layer of absorbent material and an inner perforated moisture impervious layer.Type: GrantFiled: April 19, 1988Date of Patent: August 29, 1989Inventor: Michael A. Caggiano
-
Patent number: 4859337Abstract: The invention relates to A filter for making portions of coffee or tea, comprising a substantially cup-shaped supporting vessel having a pouring-in opening at the top, a chamber for filling with liquid and having an outlet opening at the bottom, and a filter insert disposed in the supporting vessel above the outlet opening, wherein the filter insert (5) comprises a filter mat and extends approximately parallel to the inner wall of the supporting vessel and its periphery is connected to the supporting vessel (1) in the edge region of the pouring-in opening (2).Type: GrantFiled: July 10, 1987Date of Patent: August 22, 1989Inventor: Erich H. Woltermann
-
Patent number: 4830863Abstract: A package is disclosed for natural products and comprises a first wall region of thermoplastic material and a second wall region which comprises a porous substrate hermetically sealed at its edges to the thermoplastic material and covered with a gas-permeable layer of polymethylpentene. The area of the porous substrate and its outer covering of polymethylpentene is selected in relation to the total area of the package and in dependence upon the natural products to permit a desired atmosphere to be maintained within the package as a result of respiration of the natural products and gas transfer through the porous substrate.Type: GrantFiled: September 23, 1987Date of Patent: May 16, 1989Inventor: Arthur N. Jones
-
Patent number: 4815602Abstract: A vacuum skin package, having a peripheral area and a central area, comprises a thermoplastic supporting member; a thermoplastic heat-formed top web sealed to the supporting member in the peripheral area of the package; a first moisture impervious metallic sheet having outer and inner non-heat sealable surfaces; a second moisture-impervious metallic sheet having outer and inner non-heat sealable surfaces; the first and second sheets unbonded to each other and substantially enclosing therebetween a product in the central area of the package; and the product and enclosing sheets disposed between and enclosed by the supporting member and top web, the top web in comunication with the outer non-heat sealable surface of the first sheet, and the supporting member in communication with but unbonded to the outer non-heat sealable surface of the second sheet.Type: GrantFiled: October 30, 1987Date of Patent: March 28, 1989Assignee: W.R. Grace & Co.Inventor: Henry G. Schirmer
-
Patent number: 4795665Abstract: Containers for foods, juices and beverages containing essential oils or flavorings are comprised of a laminate structrue in which the inner surface of the container, in contact with the foods, juices or beverage, is a halopolymer, such as a vinylidene chloride polymer, which functions as a barrier layer to substantially restrict the passage or migration of the essential oils or flavorings.Type: GrantFiled: June 17, 1987Date of Patent: January 3, 1989Assignee: The Dow Chemical CompanyInventors: Gerald M. Lancaster, Morris S. Edmondson
-
Patent number: 4785937Abstract: A packaging material for a retortable pouch comprises a laminated base film formed by laminating together a polyester film and an inelastic polypropylene film, a laminated cover film formed by laminating together a polyester film and an aluminum foil, and an adhesive layer detachably bonding the polyester film of the laminated base film to the aluminum foil of the laminated cover film, thereby laminately bonding the laminated cover film to the laminated base film. When the retortable pouch is heated in a microwave oven, the laminated cover film having the aluminum foil is removed from the laminated base film, whereby microwaves generated by a magnetron are not intercepted, and cooked food packaged in the retortable pouch can be heated adequately.Type: GrantFiled: April 6, 1987Date of Patent: November 22, 1988Assignee: Kabushiki Kaisha Hosokawa YokoInventors: Tadao Tamezawa, Yoshiji Moteki
-
Patent number: 4777053Abstract: Disclosed are packaged frozen food articles which are adapted to be heated by microwave. The articles include an overwrapped paperboard carton housing one or more frozen, coated food items. The carton further includes an opposed pair of spaced parallel laminated heating panels. The panels each comprise an inner heating layer mounted on a mounting board, a spacer such as a spaced pair of paperboard sheets with an intermediate corrugated piece, and an outer microwave shield. The heating layer is in direct contact with the food items and can comprise a metallized film. The microwave shield can be a foil such as aluminum foil.Type: GrantFiled: June 2, 1986Date of Patent: October 11, 1988Assignee: General Mills, Inc.Inventors: David W. Tobelmann, Michael L. Troedel, Robert L. Esse
-
Patent number: 4741909Abstract: Methods and apparatus are disclosed incorporating a design into the skin of a apple or other fruits or vegetables with a photochemically reactive skin or surface by covering the apples while still on the tree with a bag having a reflective outer surface and a non-reflective inner surface. The bag has at least one aperture to allow for the drainage of fluids out of the bag, and further has a light barrier positioned to block light from entering through the aperture into the interior of the bag. The bagged apples are harvested and transferred to a substantially light-exclusive environment where the bag is removed. A label or symbol is applied to the skin of the apple or fruit and the apple or fruit exposed to artificial light to develop the color of the skin of the apple.Type: GrantFiled: August 4, 1987Date of Patent: May 3, 1988Inventor: David W. Guthrie
-
Patent number: 4741934Abstract: A steel sheet for making cans carrying a layer of a thermoplastic resin having a thickness of 3 to 100 microns on at least one surface thereof which, when shaped into a can, will define its inner surface, and a foil of aluminum or an aluminum alloy having a thickness of 5 to 100 microns on the resin layer. Also disclosed is a can for holding a drink which is formed from such a steel sheet, and which has a layer of a thermosetting resin on the foil. A method of making any such can is also disclosed.Type: GrantFiled: April 7, 1986Date of Patent: May 3, 1988Assignee: Nippon Steel CorporationInventors: Kazukiyo Terayama, Yashichi Oyagi, Yukio Tsukamoto
-
Patent number: 4702963Abstract: Flexible polymer packaging films having thin films of inorganic coatings deposited thereon to reduce the vapor permeability of the article. Inorganic thin film coatings comprising a composite of two materials are disclosed to confer both substantial transparency and retortability on the overall packaging film structure. The two material film composite involves either sequentially deposited films with the first thin film layer serving as an adhesion layer and the second thin film layer serving as a barrier layer. Alternatively, the two materials may be co-deposited to form a single thin film layer which provides sufficient adhesion to confer retortability on the overall film structure and also functions as relatively impermeable gas and vapor barrier for reducing the vapor transmission rate through the product. Various coated single film articles and dual film laminated articles are disclosed.Type: GrantFiled: April 12, 1982Date of Patent: October 27, 1987Assignee: Optical Coating Laboratory, Inc.Inventors: Roger W. Phillips, Craig M. Shevlin, John S. Matteucci
-
Patent number: 4615924Abstract: A coating composition and container coated with said composition comprising a water insoluble organic coating and having incorporated therein zinc oxide and an alkaline earth metal material in an amount sufficient to effect green color retention of green vegetables.Type: GrantFiled: October 3, 1984Date of Patent: October 7, 1986Assignee: Continental Can Company, Inc.Inventors: Ihab M. Hekal, Paul M. Erlandson
-
Patent number: 4599275Abstract: A metal-deposited paper comprising a paper substrate, a thin continuous coating of a film-forming resin having good adhesion to metals on at least one surface thereof, and a metal film deposited on the resin coating. The aforesaid paper can be produced by applying a thin continuous coating of a film-forming resin having good adhesion to metals on at least one surface of a paper substrate, and then vacuum-depositing a metal on the surface of the resin coating.Type: GrantFiled: June 13, 1984Date of Patent: July 8, 1986Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Akira Hayashi, Yutaka Hirota, Mitsuhiro Tanaka
-
Patent number: 4551960Abstract: A structural system and method which utilizes a plurality of three dimensional nodal connectors and one or more struts extending between and secured to the nodal connectors. Each connector is comprised of at least three relatively flat planar plates and preferably, three pairs of relatively flat planar plates which are assembled in three mutually perpendicular planes in space. Each of these plates in each of the three pairs are substantially similar in both size and shape and are uniquely designed so that they are capable of being interfitted in the mutually perpendicular planes. Also each of the struts are substantially similar in both size and shape and may be connected to the nodal connectors at connection regions which are slightly resilient so that the struts are capable of being snap fitted between such plates of each connector and releaseably retained therein.Type: GrantFiled: February 14, 1983Date of Patent: November 12, 1985Inventor: Gregg R. Fleishman
-
Patent number: 4537815Abstract: The drawings and description disclose a heat sealable container for edible oils and other types of oils, and a blank for constructing same, having a laminated wall construction of suitable oil resistant barriers or layers which are compatible with one another insofar as bonding and sealing are concerned. Such wall construction includes central layers of aluminum foil and fluorochemically treated paperboard secured to one another by a suitable adhesive, an ionomer layer, such as Surlyn, formed on each outer paperboard and foil surface, and a layer of thermoplastic material, such as polyethylene, formed on each outer Surlyn surface. As an alternate embodiment in some applications, the Surlyn layer may be omitted from the foil surface, and the outer layer of thermoplastic material may be applied directly to the foil surface.Type: GrantFiled: March 9, 1984Date of Patent: August 27, 1985Assignee: Ex-Cell-O CorporationInventors: Daniel J. Wise, Donna M. Woodhall
-
Patent number: 4528234Abstract: A transparent laminate is disclosed, which laminate comprises a transparent plastic resin film or sheet substrate (A), a thin layer (B) of at least one metal such as aluminium, tin, iron, zinc, or magnesium formed on the film or sheet substrate (A) by vacuum deposition or sputtering, and a carboxyl group-containing polyolefin layer (C) formed on the metal layer (B) by lamination. In one embodiment, the film or sheet substrate may have a silicon oxide or titanium oxide layer (D) formed thereon by vacuum deposition or sputtering of the oxide.Type: GrantFiled: December 27, 1982Date of Patent: July 9, 1985Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Keisuke Kaiho, Hidetoshi Nagata