Curwood, Inc. Patent applications |
Patent application number | Title | Published |
20130309375 | Pattern Laminated Double Wall Hot Formable Plastic Web With Enhanced Puncture Resistance - The present disclosure is concerned with thermoformable webs with improved puncture resistance suitable for use in semi-automatic horizontal form fill and seal (HFFS) packaging machines and a process for packaging hard food items with sharp angular surfaces using such webs in such machines. The webs have a double wall partially laminated structure. The structure is conveniently formed by adhesively laminating two component films in a face to face configuration using a pattern of adhesive which leaves a substantial portion of the two facing surfaces unlaminated. The lamination just needs to be sufficient that the two component films will hot form together when they are vacuum drawn into a die to form a cavity for packaging the food items. The lamination pattern can vary from just edge strips to the edge strips and a honey comb pattern or a pattern of dots over the facing surfaces between the edge strips. | 11-21-2013 |
20130279833 | Gusseted Bag With Easy-Open Lap Seal - An end-sealed packaging bag comprising a multilayer non-heat shrinkable film and an easy open lap seal is provided. The film comprises at least four layers, including an inner heat sealing layer, a contaminated layer, a barrier layer, and an outer heat sealing layer. The film, when formed into a bag, is defined by a front panel, and opposing back panel connected to one another by a pair of side gusset panels. The bag further comprises a peelable lap seal connecting the inner heat sealing layer to the outer heat sealing layer of the film. The bag further comprises a first end seal connecting the inner heat sealing layer on the front panel with the inner heat sealing layer on the back panel between the side gusset panels and proximate to the first end of the bag. | 10-24-2013 |
20130266755 | Packaging Inserts With Myoglobin Blooming Agents, Packages and Methods of Packaging - Food packaging inserts comprising a myoglobin blooming agent that promote or preserve the desirable appearance of food products, food packages, and methods of food packing comprising the same, are provided. | 10-10-2013 |
20130177266 | Readily Ventable Reclosable Flexible Containers - The present disclosure concerns flexible reclosable containers with a one way valve which provides a means to vent fluids, particularly air, from the interior of container when the repeatedly reclosable closure member, typically a zipper, is in a closed state. It also concerns a process for creating such a valve using a seal bar with voids to create a channel which passes behind the closure member. The valve which is disclosed involves a channel which comprises a central passageway which connects a port which communicates with the environment to a port which communicates with the interior of the package. Also disclosed is the concept of using this valve with a readily removable hermetic seal such that the port intended to communicate the environment initially communicates with the headspace between the reclosable closure member and the hermetic seal but does communicate with the environment when the hermetic seal is removed. | 07-11-2013 |
20130161872 | Preservation of the Appearance of Pre-Printed Graphics on Hot Stretched Film - The present disclosure is concerned with improving the appearance of graphics printed on a flexible polymer film which is subsequently heated to a forming temperature and then drawn into a mold to form a cavity adapted for the packaging of an item, typically a food item. The improvement is effected by reducing the heat transfer to the portions of the film carrying the graphics thereby reducing the formability of these portions so that they stretch less than the rest of the film which is drawn into the mold. Typically the film is heated by contact with a heated platen. In such cases the reduced heat transfer can be effected by having zones of a cooler temperature which are adapted to be in registry with the portions of the film carrying the graphics or by covering the portions of the heated platen in registry with these graphics with an insulating material such as Teflon tape. The mouth of the cavity can then be closed by sealing to another flexible polymeric film. If the films used are heat shrinkable, the sealed package can be subjected to thermal conditions which cause it to shrink about the packaged item. | 06-27-2013 |
20120308751 | Packaging Sheet With Improved Cutting Properties - A non-oriented thermoformable packaging sheet having a rigid component layer comprising a blend of an aromatic polyester and a styrenic polymer, where the total amount of styrenic polymer present in the sheet relative to the total weight of the sheet is at least between 3.0% and 4.0% by weight. The packaging sheet has a thickness of at least 5 mil and a normalized impact strength of 0.16 ft*lbf/mil or less total energy as measured in accordance with ASTM D3763-08 test method. | 12-06-2012 |
20120277341 | Adhesive Compositions For Easy Application and Improved Durability - The present invention is directed to an adhesive composition comprising a crosslinkable acrylic copolymer, a multi-functionalized crosslinkable oligomer and a photoinitiator wherein the partially cured composition exhibits excellent wet out characteristics as reflected in a tan delta value of at least 0.4, preferably greater than 0.5, more preferable greater than 0.6 as measured at 20° C. resulting from a first curing stage, and the fully cured composition exhibits an improved stiffness and temperature resistance as reflected in a storage elastic modulus of at least 175,000 Pa at 20° C. and a shear adhesion failure temperature of at least 425° F. (218.3° C.) at 1 Kg/in | 11-01-2012 |
20120259052 | Process For Introducing An Additive Into A Polymer Melt - A process includes introducing a base polymer into an extruder, heating to a temperature sufficient to form a polymer melt, introducing a liquid comprising water and at least one additive consisting of an NO donating compound with mixing and subsequent vaporization and venting of the liquid to produce an extrudate having a uniform distribution of preferably uniformly small additive particles. | 10-11-2012 |
20120219671 | Myoglobin Blooming Agents, Films, Packages and Methods For Packaging - Non-shrink, forming and nonforming thermoplastic webs comprising a myoglobin blooming agent on a food contact surface are useful for packaging fresh meat and other products to fix a desirable color on the surface of the product. | 08-30-2012 |
20120152954 | Easy-Open Package - A rigid or semi-rigid tray is provided, including a bottom and at least one side wall which forms at least one recessed product-receiving compartment, and a flange extending around the tray which forms distal edges of the container. The tray further includes a lidding film affixed to the flange which forms a peelable heat-seal extending around the product-receiving compartment and the distal edges of the container, and an easy-open member positioned between the product-receiving compartment and the distal edges of the container. The easy-open member has a frangible portion of the lidding film which forms a tab member when punctured, for example by the force of a human finger, to provide a means for removing the lidding film from the flange and gaining access to the product-receiving compartment. | 06-21-2012 |
20120107466 | Packaging Articles, Films and Methods That Promote or Preserve The Desirable Color of Meat - Food packaging articles, food packaging films, and food packaging methods comprising a myoglobin blooming agent that promote or preserve the desirable appearance of food products are provided. The food contact layer of the packaging films comprises a myoglobin blooming agent. | 05-03-2012 |
20120100267 | Packaging Articles, Films and Methods That Promote or Preserve the Desirable Color of Meat - Food packaging articles, food packaging films, and food packaging methods comprising a myoglobin blooming agent that promote or preserve the desirable appearance of food products are provided. The food contact layer of the packaging films comprises a myoglobin blooming agent. | 04-26-2012 |
20120005988 | Vacuum Skin Packaging Laminate, Package and Process for Using Same - The present invention is directed to vacuum skin packaging, laminates. The laminates include a first film, a second film, an adhesive bonding the first film to the second film, and an adhesive-free interfacial section between the first and second films. The laminate is adapted to provide substantially horizontal first film-surface above the product for displaying product markings and a thermoformable second film-surface for conforming to the shape of the product. The present invention also is directed to vacuum skin packages formed from such laminates, and methods of packaging a product. | 01-12-2012 |
20110162993 | Easy-Open Reclosable Films Having an Interior Frangible Interface and Articles Made Therefrom - The present invention relates to peelable resealable multilayer films which include at least a first thermoplastic layer of an anhydride-modified polyolefin, a second thermoplastic layer of an ethylene/vinyl alcohol copolymer and a third thermoplastic layer of a tacky pressure-sensitive adhesive. The bond formed between a second layer of ethylene/vinyl alcohol copolymer and a third layer of a tacky pressure-sensitive adhesive creates a peelable resealable interface having a first interfacial peel strength, A, and a second interfacial peel strength, B. | 07-07-2011 |
20110123743 | Easy-Open Reclosable Films Having Interior Frangible Interface and Articles Made Therefrom - The present invention relates to peelable resealable multilayer films which include at least a first polymer layer, a second polymer layer of pressure-sensitive adhesive in direct contact with and bonded to both the first and third layers. The bond formed between the second and third layers includes a peelable resealable interface having a first interfacial peel strength, A, and a second interfacial peel strength, B. The peelable resealable interface includes a first interfacial peel strength, A, having a value of less than 3500 gram-force/inch (1350 newton/meter) as measured in accordance with ASTM F-904-98 test method when the films of the present invention are peeled from a second thermoplastic film to which the film has been heat-sealed. The second interfacial peel strength, B, has a value of at least 400 gram-force/inch (154 newton/meter) as measured in accordance with ASTM F-904-98 test method when the films are peeled from and re-adhered to a second film. | 05-26-2011 |
20110123742 | Easy-Open Reclosable Films Having an Interior Frangible Interface and Articles Made Therefrom - The present invention relates to peelable resealable multilayer films which include at least a first polymer layer, a second polymer layer of pressure-sensitive adhesive in direct contact with and bonded to both the first and third layers. The bond formed between the second and third layers includes a peelable resealable interface having a first interfacial peel strength, A, and a second interfacial peel strength, B. The peelable resealable interface includes a first interfacial peel strength, A, having a value of less than 3500 gram-force/inch (1350 newton/meter) as measured in accordance with ASTM F-904-98 test method when the films of the present invention are peeled from a second thermoplastic film to which the film has been heat-sealed. The second interfacial peel strength, B, has a value of at 400 gram-force/inch (154 newton/meter) as measured in accordance with ASTM F-904-98 test method when the films are peeled from and re-adhered to a second film. | 05-26-2011 |
20100288131 | Mineral Composite Beverage Brewing Cup and Cartridge - A beverage filter cartridge having a cup, a filter, a lid and at least one beverage ingredient is provided where the cup and lid are sealed together to form an interior chamber which is separated into a first and second compartments by the filter, which is preferably basket or cone shaped, and a beverage ingredient such as coffee is contained inside first compartment, and at least one of the cup, lid and filter contains calcium carbonate in an amount effective to either improve the ability of beverage makers to pierce the cup or to provide a means for the cartridge to absorb CO | 11-18-2010 |
20100266795 | Myoglobin Blooming Agent Containing Shrink Films, Packages and Methods for Packaging - Heat shrinkable, oxygen barrier, packaging films, methods of packaging and packages are provided having a myoglobin blooming agent to provide, promote, enhance or maintain a desirable coloration on the surface of a myoglobin-containing meat product. | 10-21-2010 |
20100255164 | Food Article Packaging Apparatus and Method - Packaging apparatus and method for inserting food articles into a bag of comparable size. The apparatus has a conveyor that orients the product along a longitudinal axis and delivers the food article to a tray disposed below the conveyor so the product drops from the conveyor and onto the tray. The tray and conveyor move at speeds selected so the product maintains its longitudinal orientation as it drops from the conveyor into the product tray. A bag scoop holds the bag mouth open while the tray carrying the product advances into the bag. A product stripper moves into a position behind the bagged product after passage of the tray so that when the tray returns to its start position, the stripper butts against the end of the product and holds the product while the tray slides out of the bag. | 10-07-2010 |
20100183830 | Easy-Open Packages Formed From Peelable Thermoplastic Laminates - An easy-open package formed from a peelable thermoplastic laminate and adapted to peel open, whereby the manually tearing the package causes a removable strip to form thereby exposing a product enclosed therein. | 07-22-2010 |
20100181370 | Peelable Film and Package Using Same - The present invention is directed to a peelable packaging film comprising a first thermoplastic substrate and a second thermoplastic substrate wherein the packaging film has a Heat Shrinkage value between 0 and 10% at 102° C. in either the machine or transverse directions. The first and second substrates each have a first surface and a second surface. Each of the first surfaces comprises a polyolefin and has a surface energy of at least 36 dynes/cm | 07-22-2010 |