EP0145499B1 - Sachet à infusions - Google Patents

Sachet à infusions Download PDF

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Publication number
EP0145499B1
EP0145499B1 EP19840308718 EP84308718A EP0145499B1 EP 0145499 B1 EP0145499 B1 EP 0145499B1 EP 19840308718 EP19840308718 EP 19840308718 EP 84308718 A EP84308718 A EP 84308718A EP 0145499 B1 EP0145499 B1 EP 0145499B1
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EP
European Patent Office
Prior art keywords
bag
film
holes
openings
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19840308718
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German (de)
English (en)
Other versions
EP0145499A2 (fr
EP0145499A3 (en
Inventor
Carl Douglas Ray
John Francis Pollock
Richard Lee Dinius
Michael Allen Francis
Garland Eugene Raley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessione tredegar Industries Inc
Original Assignee
Ethyl Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ethyl Corp filed Critical Ethyl Corp
Priority to AT84308718T priority Critical patent/ATE42252T1/de
Publication of EP0145499A2 publication Critical patent/EP0145499A2/fr
Publication of EP0145499A3 publication Critical patent/EP0145499A3/en
Application granted granted Critical
Publication of EP0145499B1 publication Critical patent/EP0145499B1/fr
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags

Definitions

  • the present invention is directed to infusion bags, especially tea bags and the like, and more particularly to an infusion bag constructed of a non-woven, fiber-free, perforated thermoplastic film.
  • the invention is particularly concerned with an infusion bag constructed of a coextruded multilayer perforated thermoplastic film having a plurality of uniform minute holes or openings therein.
  • Thermoplastic films such as polyethylene and polypropylene are common packaging materials.
  • Multilayer films of various types are also quite common packaging materials.
  • the films are generally nonporous and impervious to water and other inert liquids. At least one of the layers of film has strong adhesive qualities. Examples of such multilayer films may be seen in U.S. 4,254,169; U.S. 4,239,826; U.S. 4,233,367; U.S. 3,908,070; U.S. 3,423,231; U.S. 2,817,124 and U.S. 2,817,123.
  • Perforated thermoplastic films have many useful applications, including packaging of food products such as cheese, gardening and farming to prevent growth of weeds while permitting moisture to be transmitted through the film to the soil beneath and for making absorptive structures such as disposable diapers, for example, see U.S. 3,814,101.
  • Perforation of thermoplastic films is generally achieved by vacuum perforation of thin plastic films which involves the extrusion of molten polymeric materials such as polyethylene through a slot die. The hot melt web of film exiting the die impinges on a form through which a vacuum is drawn causing the film web to be perforated and holes formed therein. Depending upon the form used, films can be produced which have as few as 50 holes per square inch or which have thousands of holes per square inch.
  • One of the earlier methods for vacuum perforation of plastic film is disclosed in U.S. 3,054,148.
  • Infusion-type tea bags are usually rectangular packets or sachets made from single or multiple pieces of paper folded in half and crimped or otherwise sealed along the edges.
  • a single strip of paper is folded twice longitudinally to form an inner centrally disposed double fold joining the two meeting edges.
  • a triple transverse fold intermediate the length of the folded strip forms two pockets which are partially filled with tea before the open ends thereof are folded over and stapled to a strand of string usually having a tag on the end thereof.
  • infusion packets or bags usually for containing tea for subsequent brewing.
  • the bags are usually constructed of filter paper or some other type of porous material such as cloth or the like.
  • U.S. 3,653,913 discloses an infusion bag made from a rectangular strip of porous fibrous material, the longitudinal margins of which are folded together so as to form a longitudinal joint consisting of three layers which are knurled together.
  • the tube is divided by a transverse bend so as to form a pair of chambers for holding an infusible substance, and the opposite ends of the tube are connected to each other so as to close the bag.
  • Infusion bags with positioning means and flotation means are disclosed in U.S. 3,797,642 and U.S. 3,809,215, respectively.
  • the tea bags themselves may be made of various materials including paper, plastics such as nylon, perforated plastic film, e.g., polyester, or woven or non-woven fabric of natural or synthetic origin.
  • a percolatable porous bag constructed of a blend of individualized textile or cellulosic fiber and a small amount of thermoplastic fiber is disclosed in Canadian patent 802,720.
  • fibrous or paper bags Another problem with fibrous or paper bags is that as they become wet, the fibers expand or swell. Such expansion or swelling closes the openings in the bag material and removes the permeability thereof. When placed in a water containing vessel such as a cup or pot, the bags tend to float since the films structure is so closed or porosity so diminished that air is trapped inside the bag.
  • An infusion bag for items such as tea, coffee or similar food products for brewing must have a number of qualities. It must have an inability to impart a taste factor to the liquid product after brewing. In effect, it must be substantially odorless and tasteless. It must also be sufficiently strong to contain the brewing product in boiling water, e.g., in the steeping of tea, coffee, and similar liquid beverages.
  • the bag must also be porous enough to permit liquid diffusion therethrough, but the pores or openings must be of such size that migration of the beverage material therethrough is inhibited, both when the bag is dry and when the bag has been immersed in a liquid. It is also important that infusion begins to take place within a few seconds. It is further desirable that a sachet, such as a tea sachet, retain sufficient stability that it can be compressed after brewing is completed without destruction of the container.
  • the present invention provides an infusion bag or sachet which meets all of these requirements being a heat sealable infusion bag for particulate products constructed of a perforated thermoplastic film having a multiplicity of minute substantially uniform holes or openings sufficiently small to inhibit migration of the particulate product packaged and sufficiently large to permit the flow of liquids therethrough to achieve a desired infusion characterized in that the film is a multilayer, preferably coextruded, perforated thermoplastic film having a heat resistant outer layer of film forming resin and an inner sealant layer of a somewhat less heat resistant film forming resin, there being an adequate melting temperature differential between the inner and the outer layers so that an edge portion of opposed inner layers can be heat sealed together by application of heat to the outer film layer without the outer film layer being excessively softened, said inner layer having an effective amount of an anti-static agent blended therein.
  • the infusion bag of this invention thus may be a perforated, non-woven, non-fibrous construction of a multilayer coextruded perforated thermoplastic film having a multiplicity of uniform fine holes or openings.
  • the film is a multi-layer coextruded thermoplastic film with one outer layer being heat resistant and the other outer layer being somewhat less heat resistant and heat sealable.
  • the heat resistant outer layer of the film forms the outside of the bag and the less heat resistant layer of the film forms the inside of the bag.
  • the openings in the film are sufficiently small to retain particulated products such as tea, coffee or the like within the bag and to inhibit or prevent migration of the particles through the holes when the particles are either dry or wet.
  • the holes in the film are also sufficient in number and sufficiently large to provide the desired degree of infusion.
  • the outer layer of film of the bag is polyester, polypropylene or other thermoplastic of similar heat resistance and the inner layer of the bag is polyethylene or other sealable thermoplastic.
  • An alternate form of the invention includes the inner layer of the bag being preferably polyethylene or other sealable thermoplastic material containing an effective amount of antistatic agent to inhibit the sticking of the packaged product thereto.
  • the film is substantially odorless and tasteless.
  • the bag or packet 10 is constructed of a rectangular strip of a perforated plastic film 11 which is described in more detail hereinafter.
  • the strip of film 11 is folded at 12, sealed at edges 13 and 14 and filled with a particulated product P which can be seen through the film 11. After the product P is inserted in the sachet 10, the edge 15 is sealed, thereby encasing the product P within the bag 10.
  • the infusion bag 10 is constructed of a coextruded multilayer thermoplastic film 11 comprising an outer layer 21 of a heat resistant film forming thermoplastic resin such as polyester, polyolefin, polycarbonate or nylon with polyester being preferred, and an inner sealant layer 22 of a somewhat less heat resistant film forming thermoplastic resin, such as polyethylene, polyester, polycarbonate or nylon with polyethylene being preferred.
  • the film 11 has a multiplicity of fine holes or capillaries 23 which are of a somewhat tapered construction, being more or less in the form of a truncated cone. Tapered holes help to speed infusion. The somewhat cone shape of the holes effectively channels liquid into the bag and into contact with the particles contained therein.
  • the holes or openings are shown as being circular or round. It can be appreciated that the openings may be of any desired shape such as oval, pentagonal, hexagonal or other geometric configuration. It is important that the holes be uniform and that they be sufficiently large in size and number to provide adequate infusion and be sufficiently small in size to prevent the migration of particles therethrough such as the particulated product P.
  • the film 11 has a multiplicity of fine slots or rectangularly- shaped capillaries 43 which are of a somewhat tapered construction, being more or less in the form of a truncated box.
  • the slots 43 are illustrated in alternate rows in a uniform, pre-determined pattern and represent an ideally shaped slot.
  • the slots are rectangularly shaped with somewhat rounded ends. In actual construction, they may have slight bulges at their center.
  • the slots are of such a size that particulate matter is inhibited from passing therethrough.
  • the size of the slot can be adjusted by changing either the major axis or the minor axis. By changing the minor axis, the slot can control the size particulate matter that can be passed or sifted through the film.
  • the liquid infusion rate can be controlled. It is important that the slots be sufficiently large in size and in sufficient number to provide a desired rate of liquid infusion and yet be sufficiently small in size to prevent the migration of particles therethrough such as the particulated product P.
  • a perforated thermoplastic film 31 is illustrated in Fig. 7 which has slots 33 which are arranged in somewhat diagonal lines. It can be appreciated that the slots can be arranged in a variety of patterns as desired.
  • a preferred hole size is from about two to 10 mils (0.00508-0.0254 cm), in diameter or across the opening, with a size of three to four mils being most preferred.
  • a preferred slot size is from about one to four mils (0.00254 to 0.01016 cm) across the minor axis, with a size of two to four mils (0.00508 to 0.01016 cm) being most preferred.
  • the major axis is about four to 10 mils (0.01016 to 0.0254 cm) across, with about four to six mils (0.01016 to 0.01524 cm) being preferred.
  • the film has a base thickness of about 0.25 mil to two mils (0.000635 to 0.00508 cm) and about 500 holes or slots per square inch (77.5 per square centimeter) or more. About 1800 to 4200 openings per square inch (279 to 651 per squarecentimeter) are preferred, with about 2900 holes or slots per square inch (449.5 per square centimeter) being most preferred.
  • the porosity of the film is about 50 to 500 cubic feet per minute (CFM) (23597 to 235,973.7 cubic centimeters per second).
  • the outer layer of the coaxial or coextruded perforated thermoplastic film of the bag is preferably a heat resistant polyester film having a melting temperature of about 425°F to 600°F (218.83°C to 315.56°C) with about 525°F (273.89°C) being most preferred.
  • the inner sealant layer of the coextruded perforated thermoplastic film of the bag is preferably a somewhat less heat resistant polyethylene film having a melting temperature of about 180°F to 250°F (82.22 to 121.11°C) with 220°F (104.44°C) being most preferred.
  • the use of an outer polyester layer enables a sealing/melting temperature differential of about 150°F (65.56°C) to be obtained.
  • the film has a desired seal strength of 3/4 lb. per inch (133.9 grams/centimeters) width.
  • a temperature of about 240°F (115.56°C) is required to melt the polyethylene film for sealing.
  • the melting temperature of the polyethylene inner layer be kept below about 260°F (126.67°C).
  • particular polyolefin resins or other film forming resins may have higher or lower melting temperatures; however, it is essential that a melting temperature differential be obtained between each layer to achieve the desired seal without a deleterious effect on the film.
  • a heat resistant polypropylene film layer has a melting temperature of about 230°F to 350°F (110 to 176.67°C) with about 320°F (160°C) being preferred.
  • the melting temperature of 180°F to 250°F (82.22 to 121.11°C) of the somewhat less heat resistant polyethylene film layer provides the necessary melting temperature differential.
  • the edges of the film are heat sealed to complete the package.
  • the melting temperature of the outer layer of the bag must be sufficiently high to prevent the film from sticking to the sealing jaws.
  • the melting temperature of the inner sealant layer of the bag must be less than the melting temperature of the outer layer.
  • edges of the bags may be readily heat sealed using standard sealing and automatic bag making machines.
  • the edges may also be effectively sealed with use of impulse or band type sealers, hot wires, hot air or other suitable sealing apparatuses or techniques.
  • the static-free surface of the polyethylene film permits the particulated products to be directed away from the sealant area.
  • a rectangular strip of film is folded and sealed on the two sides adjacent to or at right angles to the fold, thereby forming a container or bag.
  • a desired amount of particulated product is inserted in the bag while the bag is held in a vertical or upright position.
  • the product particles immediately fall to the bottom of the container away from the top edge.
  • the top edge is then sealed without any inhibition of the fine particles.
  • a VisQueen ® Vispore @ film identified as X-6040 is especially suitable for constructing the infusion bag.
  • the film is a coextruded polypropylene/ polyethylene perforated thermoplastic film formed from a high density polyethylene resin and a polypropylene resin.
  • the film can also be a coextruded polypropylene/polyethylene perforated thermoplastic film formed from a high density polyethylene resin to which about 2000 ppm (milligrams per liter) of an antistatic agent, identified by the manufacturer as Atmul 84 or ATMUL 84K, has been added and a polypropylene resin.
  • the resins and antistatic agent are odorless and tasteless and approved for food packaging.
  • the antistatic agent is added to the polyethylene resin in an amount of about 500-10,000 parts per million (ppm) (milligrams per liter).
  • the agent must meet the requirements of the U.S. Food and Drug Administration or any other applicable government specifications.
  • An antistatic agent found to be particularly effective is ATMUL @ 84 or ATMUL O 84K, identified by the manufacturer to be mono- and diglycerides (edible fats glycerolysis). It is Generally Recognized As Safe (GRAS) food additive per FDA. 121.101.
  • the agent is in the form of ivory white beads or flakes and is blended or otherwise mixed with the polyethylene resin prior to extrusion.
  • ATMUL @ 84 is a well known commercially available antistat or antistatic agent for polyolefins such as low density polyethylene (LDPE), medium density polyethylene (MDPE) and polypropylene (PP), but said by the manufacturer not to be sufficiently effective in high density polyethylene (HDPE).
  • the agent is comprised mainly of mono- and diglycerides and contains a minimum of about 40 weight percent alpha monoglyceride with a maximum content of one weight percent of each water, free fatty acid and free glycerides.
  • the antistatic agent not only is effective in HDPE, but also substantially increases the infusion rate of tea bags having an inner sealant layer of perforated polyethylene film when a small amount of the agent has been blended with the HDPE resin prior to extrusion.
  • the female side or surface of the thermoplastic film to be on the outside of the bag is also preferably flame or corona discharge treated. Such treatment enhances the flow of water into the bag and thus accelerates the infusion process.
  • film forming resins can be used providing they can be effectively perforated and provided that there is an adequate melt differential between the outer layer of the bag and the inner sealant layer of the bag.
  • multilayer films of more than two layers it may be necessary or desirable to provide multilayer films of more than two layers.
  • a triple layer film is suitable. Regardless of the number of layers of film, it is essential that the melting temperature differential be maintained between the outer layer of the bag and the inner sealant layer of the bag.
  • the layers of a sheet of film must also, of course, not be subject to separation or delamination.
  • the film is preferably clear in color, but may be manufactured in its natural color or a variety of colors as desired or permitted.
  • the film has a dry surface and has no tendency to stick, cling or "block".
  • the male side of the film is on the inside of the bag.
  • the invention is illustrated in its simplest form, and as a typical small size infusion bag for the packaging of individual servings oftea for brewing. Larger size packages, such as those customarily used in the food services industry can also be constructed. Such bags are constructed of two rectangular strips of film and sealed on all four edges. The bags or packages of the invention can be constructed in other geometrical configurations as desired. Rectangularly shaped packages are generally more suitable for boxing or other type of group packaging and can usually be more easily fabricated.
  • the infusion bags of the present invention have excellent wet strength and will not deteriorate in boiling water.
  • the bags themselves are odorless and tasteless and do not impart any foreign taste to the item being packaged. They are, in effect, substantially inert.
  • the porosity of the bags of this invention is unaffected by the brewing process.
  • the holes or openings in the thermoplastic film remain unchanged when submerged in water and the porosity of the film remains constant.
  • the infusion bag of the invention is also not as prone to entrap air as a bag of fibrous material. Entrapped air causes flotation of the bag and slows the brewing process.
  • the invention is particularly suitable for the packaging of tea, it can be used for packaging of other types of finely ground or particulated food products such as coffee and grits.
  • the bags of the invention are also suitable for packaging items such as tobacco, snuff and the like.
  • the bags may be used for packaging of any items in which infusion is desired.
  • An antistatic agent or antistat as used herein is an internal material blended with a polyolefin resin to reduce static-electrical charges on film made from the resin by allowing the charge to leakoff or otherwise inhibits the clinging of particles to the film and which is approved by appropriate regulatory agency as a food additive or suitable for use in packaging of foods.
  • Sheet of Vispore°X-6005 coextruded perforated thermoplastic film [PP/MDPE, 40 mesh (0.420 mm openings), 10 mil (0.0254 cm) hexagonal holes, 1.25 mils (0.003175 cm) thick (0.8 mil (0.002 cm) PP + 0.45 mil (0.00114 cm) MDPE-calculated) and having a porosity of 225 CFM (106,188.75 cubic centimeters per second)].
  • Sheet of Vispore°X-6018 coextruded perforated thermoplastic film (PP/MDPE + ATMUL 84), 40 mesh (0.420 mm openings), 10 mil (0.0254 cm) hexagonal holes, 1.25 mils (0.003175 cm) thick (0.75 mil (0.001905 cm) PP + 0.50 mil (0.00127 cm) MDPE + ATMUL 84) and having a porosity of 225 CFM (106,188.75 cubic centimeters per second).
  • thermoplastic film tea bags were individually prepared by hand from each film sample as follows:
  • the male surface of a strip of film was sandwiched and/or snugged around the paperboard template.
  • the hand sealer was set at 270°F (132.22°C) and the film sealed along the open end. Approximately 1/8 inch (0.3175 centimeters) film overhang was left from the outer sealed area. Excess film was cut from the fabricated tube.
  • the paper-board template was removed leaving a tube of film having an inside diameter of 1-11/16 inches (4.286 centimeters). Three specimens, each 2-10/16 inches (6.6675 centimeters) long were cut from the fabricated tube. One edge of each specimen was sealed with the hand sealer. A distance of 2-2/16 inches (5.3975 centimeters) was measured from the inside edge seal and marked.
  • the tea from a Tetley tea bag was poured into the fabricated perforated film bag. The fabricated film bag was sealed with the hand sealer along the 2-2/16 inches (5.3975 centimeters) measured area. Additional bags as needed were similarly fabricated.
  • the bags had substantially the same weight loading and averaged 2.2 grams of tea per bag. Weight loading measurements are set forth in Table I hereinafter.
  • the infusion rates of the perforated plastic film bags incorporating an antistatic agent with the resin are substantially greater than the infusion rates of the perforated plastic film bags made from film in which no antistatic agent was used.
  • the former bags also have an infusion rate comparable to that of the regular commercial Tetley tea bags.
  • the blend of monoglycerides and diglycerides also provides a film surface which does not tend to block. This is important in the rapid production of large quantities of perforated thermoplastic film.
  • Corona discharge treatment of the perforated plastic film prior to bag fabrication further assures a "cling free" film.
  • a treatment level of about 33 to 44 dynes provides maximum functionality.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Claims (11)

1. Sachet thermosoudable (10) à infusion destiné à des produits en particules, constitué d'un film thermoplastiqe perforé (11) portant un grand nombre de trous ou d'ouvertures minuscules pratiquement uniformes (23) suffisamment petits pour inhiber la migration du produit en particules conditionné et suffisamment grands pour permettre l'écoulement de liquides à travers ce film afin de parvenir à une infusion désirée, caractérisé en ce que le film est un film thermoplastique multicouche, de préférence co-extrudé, perforé, comprenant une couche extérieure thermorésistante (21) d'une résine filmogène et une couche intérieure d'étanchéité (22) d'une résine filmogène légèrement moins thermorésistante, une différence adéquate de températures de fusion existant de ce fait entre les couches intérieure et extérieure de sorte que les bords de couches intérieures opposées puissent être thermosoudés ensemble à la.couche extérieure de film sans que la couche extérieure de film soit excessivement ramollie, une quantité efficace d'un agent antistatique étant incorporée à ladite couche intérieure.
2. Sachet suivant la revendication 1, dans lequel le film (11) est un film thermoplastique co-extrudé perforé.
3. Sachet suivant la revendication 1, dans lequel les trous ou les ouvertures (23) sont en forme d'encoches.
4. Sachet suivant la revendication 1, dans lequel les trous ou les ouvertures (23) sont ronds, ovales, pentagonaux ou hexagonaux.
5. Sachet suivant l'une quelconque des revendications 1 à 4, dans lequel la résine de la couche extérieure est un polyester, une polyoléfine, par exemple un polypropylène, un polycarbonate ou un Nylon.
6. Sachet suivant l'une quelconque des revendications 1 à 5, dans lequel la résine de la couche intérieure d'étanchéité est une polyoléfine, par exemple le polyéthylène, ou un polyester amorphe.
7. Sachet suivant l'une quelconque des revendications 1 à 6, dans lequel le film possède environ 1800 à 4200 trous ou ouvertures (23) par in2 (279 à 651 trous par cm2).
8. Sachet suivant la revendication 7, dans lequel le film possède environ 2900 trous ou ouvertures (23) par in2 (449,5 trous par cm2).
9. Sachet suivant l'une quelconque des revendications 1 à 8, dans lequel les ouvertures ou les trous (23) sont des tubes capillaires effilés, l'orifice le plus grand du tube capillaire étant situé dans la couche extérieure et l'orifice le plus petit du tube capillaire étant situé dans la couche intérieure.
10. Sachet suivant l'une quelconqe des revendications 1 à 9, dans lequel la plus grande dimension transversale ou le diamètre, suivant le cas, des ouvertures ou trous (23) va d'environ 2 à 10 mils (0,00508 à 0,0254 cm).
11. Sachet suivant l'une quelconque des revendications 1 à 10, dans lequel les ouvertures ou trous (23) ont été ménagés par perforation sous vide.
EP19840308718 1983-12-15 1984-12-14 Sachet à infusions Expired EP0145499B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84308718T ATE42252T1 (de) 1983-12-15 1984-12-14 Aufgussbeutel.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US56182583A 1983-12-15 1983-12-15
US56191683A 1983-12-15 1983-12-15
US56182383A 1983-12-15 1983-12-15
US561916 1983-12-15
US561823 1983-12-15
US561825 1983-12-15

Publications (3)

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EP0145499A2 EP0145499A2 (fr) 1985-06-19
EP0145499A3 EP0145499A3 (en) 1986-12-30
EP0145499B1 true EP0145499B1 (fr) 1989-04-19

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WO2001047787A1 (fr) * 1999-12-24 2001-07-05 Rothtech Pty Ltd Sachets d'infusion
US7950399B2 (en) 2005-04-29 2011-05-31 Philip Morris Usa Inc. Non-tobacco pouch product
US8053008B2 (en) 2005-11-21 2011-11-08 Philip Morris Usa Inc. Method of manufacturing flavor pouches
US8067046B2 (en) 2007-06-08 2011-11-29 Philip Morris Usa Inc. Oral pouch product including soluble dietary fibers
US8119173B2 (en) 2007-07-16 2012-02-21 Philip Morris Usa Inc. Method of flavor encapsulation through the use of a drum coater
US8124147B2 (en) 2007-07-16 2012-02-28 Philip Morris Usa Inc. Oral pouch products with immobilized flavorant particles
US8377215B2 (en) 2008-12-18 2013-02-19 Philip Morris Usa Inc. Moist botanical pouch processing
US8424541B2 (en) 2007-07-16 2013-04-23 Philip Morris Usa Inc. Tobacco-free oral flavor delivery pouch product
US8616221B2 (en) 2007-02-28 2013-12-31 Philip Morris Usa Inc. Oral pouch product with flavored wrapper
US8747562B2 (en) 2009-10-09 2014-06-10 Philip Morris Usa Inc. Tobacco-free pouched product containing flavor beads providing immediate and long lasting flavor release
US8863755B2 (en) 2009-02-27 2014-10-21 Philip Morris Usa Inc. Controlled flavor release tobacco pouch products and methods of making
US8950408B2 (en) 2007-07-16 2015-02-10 Philip Morris Usa Inc. Oral pouch product having soft edge
EP2470453B1 (fr) 2009-08-29 2015-04-29 PSR Profitable Strategic Redeployment Sarl Pochette pour la preparation d'une boisson
US9027567B2 (en) 2008-12-30 2015-05-12 Philip Morris Usa Inc. Oral pouch product with multi-layered pouch wrapper
US9044049B2 (en) 2005-04-29 2015-06-02 Philip Morris Usa Inc. Tobacco pouch product
US9139360B2 (en) 2005-11-21 2015-09-22 Philip Morris Usa Inc. Flavor pouch
US9428329B2 (en) 2013-08-20 2016-08-30 2266170 Ontario Inc. System for making capsule containing a dosing agent
US9428328B2 (en) 2011-09-01 2016-08-30 2266170 Ontario Inc. Beverage capsule

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US9888712B2 (en) 2007-06-08 2018-02-13 Philip Morris Usa Inc. Oral pouch products including a liner and tobacco beads
WO2009010875A2 (fr) 2007-07-16 2009-01-22 Philip Morris Products S.A. Produit en sachet pour administration orale à joint revêtu
GB0915420D0 (en) * 2009-09-04 2009-10-07 Megaplast Sa Polyolefin pre-stretched packaging film
GB0915425D0 (en) 2009-09-04 2009-10-07 Megaplast Sa Reinforced thin film for flexible packaging
EP2558370B1 (fr) 2010-04-12 2017-04-05 Altria Client Services LLC Produit en sachet avec joint amélioré et procédé associé
CA2833096C (fr) 2012-11-12 2016-05-31 2266170 Ontario Inc. Capsule pour boisson et procede et systeme pour sa fabrication
WO2014161089A1 (fr) 2013-04-03 2014-10-09 2266170 Ontario Inc. Machine à dosettes et composants
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WO2015139140A1 (fr) 2014-03-21 2015-09-24 2266170 Ontario Inc. Capsule avec chambre de trempage
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US10492523B2 (en) 2008-12-17 2019-12-03 Philip Morris Usa Inc. Moist botanical pouch processing and moist oral botanical pouch products
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US9516894B2 (en) 2008-12-18 2016-12-13 Philip Morris Usa Inc. Moist botanical pouch processing and moist oral botanical pouch products
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US10143230B2 (en) 2009-10-09 2018-12-04 Philip Morris Usa Inc. Tobacco-free pouched product containing flavor beads providing immediate and long lasting flavor release
US8747562B2 (en) 2009-10-09 2014-06-10 Philip Morris Usa Inc. Tobacco-free pouched product containing flavor beads providing immediate and long lasting flavor release
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US9428329B2 (en) 2013-08-20 2016-08-30 2266170 Ontario Inc. System for making capsule containing a dosing agent

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DE3477756D1 (en) 1989-05-24
EP0145499A2 (fr) 1985-06-19
EP0145499A3 (en) 1986-12-30

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