US20070181459A1 - Multi-walled, sack-type packaging - Google Patents
Multi-walled, sack-type packaging Download PDFInfo
- Publication number
- US20070181459A1 US20070181459A1 US10/598,848 US59884805A US2007181459A1 US 20070181459 A1 US20070181459 A1 US 20070181459A1 US 59884805 A US59884805 A US 59884805A US 2007181459 A1 US2007181459 A1 US 2007181459A1
- Authority
- US
- United States
- Prior art keywords
- packaging medium
- wall
- packaging
- medium
- air
- 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.)
- Abandoned
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000000123 paper Substances 0.000 claims description 10
- 239000002985 plastic film Substances 0.000 claims description 10
- 229920006255 plastic film Polymers 0.000 claims description 10
- 239000011236 particulate material Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000012209 synthetic fiber Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
Classifications
-
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/01—Ventilation or drainage of bags
-
- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
Abstract
Description
- The invention relates to a multiwall sack-like packaging medium for particulate materials, especially powdery materials.
- Powdery materials, for example polymer powders, are brought onto the market packed in what are known as valve sacks. In this case, filling is carried out by filling machines, which run at a high throughput rate and put the powder into the sack in a state in which it is fluidized with a great deal of air. Here, the air must escape from the sack as quickly as possible. In the past, the packaging material used was paper sacks made of kraft paper, since the air can escape through the paper while the powdery filling material is kept back. However, paper sacks have the disadvantage that they withstand spray and moisture only to an inadequate extent and are sensitive to mechanical loading.
- In order to overcome these disadvantages, at present multiwall valve sacks are used which, on the inside, consist of a paper sack which is surrounded on the outside by a sack made of plastic film, normally polyethylene film. In order to ensure a rapid escape of air during filling, the plastic film surrounding the paper sack is perforated, at least over a subregion of the area. Therefore, although the mechanical strength is increased considerably as compared with paper sacks, the penetration of moisture cannot be suppressed entirely, on account of the large-area perforation.
- There was therefore the object of developing a packaging material, in particular for powdery material, which permits the air to escape as quickly as possible during the filling operation and which, during storage, prevents rewetting from the surrounding air as effectively as possible, and also provides protection against spray.
- The subject of the invention is a multilayer, sack-like packaging medium 1, which is configured such that in each case it has a
broad front side 3 andrear side 2, which are joined bynarrow side areas outer wall 10 of air-impermeable material, characterized in that - a) on the
front side 3 and/or therear side 2, theouter wall 10 overlaps over asubregion 11 of up to 50% of the total area, - b) in the
overlap region 11, theinner layer 10 a of theouter wall 10 is perforated, - c) at the
edges overlap region 11, the twolayers seams - d) at one or both
edges region 16 which covers 10 to 50% of the total length. - Suitable air-permeable materials for the inner layer 9 are paper, woven materials or nonwoven materials made of artificial fibres or natural fibres. Preference is given to paper, for example conventional kraft papers having a grammage of 30 to 120 g/m2, preferably 60 to 90 g/m2. For the air-impermeable
outer walls 10, the plastic films which are usual in the packaging sector are suitable, preferably polyolefin films such as polyethylene or polypropylene films and PVC films. The film thickness is generally 20 to 200 μm. - When filled, the packaging medium 1 has a box-like shape. The length is preferably between 30 and 120 cm, particularly preferably 60 to 100 cm. The width is preferably 20 to 80 cm, preferably 40 to 60 cm. The width of the side parts is preferably between 5 and 30 cm, particularly preferably 10 to 20 cm.
- The opening (filling (valve) opening) 8 at the upper end of the packaging medium 1 preferably has a round or square cross section and is dimensioned such that the sack 1 can be filled via a filling nozzle. In general, diameters from 5 to 20 cm are adequate. In order to close the sack, the inside of the opening 8 is generally coated with a plastic material, preferably hot melt and/or thermoplastic (for example polyethylene). This permits the opening to be welded by means of ultrasound or heat.
- The inner, air-permeable material 9 is joined to the outer, air-
impermeable material 10 by adhesive bonding. A paper inner layer 9 is preferably adhesively bonded to an outerplastic film 10 only at the upper end 6 and at the bottom 7. During the production, the procedure is such that the individual layers of the sack are run away from the roll into the production line and are led together. An endless tube is formed and the latter is cut appropriately to length. The ends are then folded, the valve opening is inserted and adhesively bonded. Finally, a covering sheet is adhesively bonded to both ends of the sack. - The
outer material 10, generally plastic film, overlaps over asubregion 11 of up to 50% of the total area of front orrear side front side 3 or on therear side 2 or on both sides. Theouter wall 10 preferably overlaps only on one of the two sides, particularly preferably only on therear side 2, which is the side on which the sack generally rests. In a further preferred embodiment, the plastic film overlaps over the entire length. Theoverlap region 11 preferably amounts to 10 to 50% of the total area of the respective side. - In the
overlap region 11, theinner layer 10 a of the plastic film is perforated. The perforation density is generally 0.5 to 5 holes per cm2. The perforation can be applied by means of needling over theentire overlap region 11 or a subregion. 10 to 50% of the area of theoverlap region 11 is preferably provided with the perforation. Perforation is preferably carried out over the entire length of the overlap region. A distance of 0.5 to 10 cm from theedges overlap region 11 is particularly preferably maintained, the distance to theedge 12 of the overlap region, which is open, preferably amounting to 2 to 10 cm. The hole size, perforation density and the perforated area depend substantially on how high the passage of air during filling must be. Depending on the requirements, these variables can be adjusted within the above-mentioned limits by those skilled in the art. - At the
edges inner layer 10 a and theouter layer 10 b of the plastic film are joined to each other, for example with an adhesive seam or welded seam (14, 15). In order to permit the air which escapes on account of the perforation to emerge, the joint is interrupted at one or both edges, preferably only at one edge. In general, the joint is interrupted in aregion 16 which covers 10 to 50% of the total length. The interruption is preferably located in the upper half, particularly preferably in the upper third, of the packaging medium 1, since the residual air is situated at the top during the filling operation. - With this construction, it is firstly ensured that the air can emerge quickly during the filling, in spite of the outer walls made of plastic film. During storage of the filled sacks, the opening in the overlap region is closed by the inherent weight of the filled packaging medium, with the effect that no atmospheric moisture or spray can enter the interior via the perforation.
- The packaging medium is suitable for the transport and the storage of particulate materials, such as granules, fibres or fine-grained or coarse-grained powders. The packaging medium is particularly suitable for materials that are sensitive to moisture. Examples of these are polymer powders, in particular polymer powders that can be redispersed in water (dispersion powders) or else highly disperse silica, cement, gypsum, dry mixtures containing cement or gypsum such as dry mortar, flour, animal feed, water-soluble, powdery substances such as cement plasticizer, thickening agent.
- The sack can be labelled, printed or provided with labels in the usual way.
- Preferred refinements of the invention are reproduced by using the following drawings.
-
FIG. 1 shows a perspective illustration of sack 1 in the empty state. -
FIG. 2 shows an enlarged partial detail according to the region II inFIG. 1 . -
FIG. 1 shows a perspective illustration of sack 1 in the empty state, which has a first broad side 2 (rear side) and a second broad side 3 (front side), a firstnarrow side area 4 and a secondnarrow side area 5. The sack is closed at the ends 6 and 7, a filling opening 8, not illustrated here, for filling the sack 1 being provided in the region of the end 6 (upper end) to accommodate a filling pipe. - As can be seen in
FIG. 2 , the sack 1 has an air-permeable inner wall 9 which is surrounded by an air-impermeableouter wall 10. Theouter wall 10 is designed to overlap in asubregion 11 of, for example, the firstbroad side 2, theedges outer wall 10 by means ofseams - In this case, the
seam 14 is preferably interrupted in the upper third in aregion 16, forming an air outlet opening 17. The innerouter wall region 10 a of the overlappingsubregion 11 is provided close to theseam 15 with aperforation 18 which permits the passage of the air from the interior of the sack 1 into thechannel 19, formed by the overlappingouter wall regions seams
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004013469A DE102004013469A1 (en) | 2004-03-18 | 2004-03-18 | Multi-walled, bag-shaped packaging material |
DE102004013469.3 | 2004-03-18 | ||
PCT/EP2005/002545 WO2005092724A1 (en) | 2004-03-18 | 2005-03-10 | Multi-walled, sack-type packaging |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070181459A1 true US20070181459A1 (en) | 2007-08-09 |
Family
ID=34962879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/598,848 Abandoned US20070181459A1 (en) | 2004-03-18 | 2005-03-10 | Multi-walled, sack-type packaging |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070181459A1 (en) |
EP (1) | EP1725466B1 (en) |
JP (1) | JP2007535447A (en) |
CN (1) | CN1934005B (en) |
AT (1) | ATE375307T1 (en) |
DE (2) | DE102004013469A1 (en) |
ES (1) | ES2293542T3 (en) |
TW (1) | TWI303615B (en) |
WO (1) | WO2005092724A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080144979A1 (en) * | 2006-11-06 | 2008-06-19 | Marko I.R.D.C. | Plastic bag with improved air evacuation structure |
US20080152266A1 (en) * | 2006-12-18 | 2008-06-26 | Bischof + Klein Gmbh & Co. Kg | Packaging in the Form of a Bag |
US20110188786A1 (en) * | 2004-05-27 | 2011-08-04 | Heinemeier Juergen | Plastic Bag with Overpressure Relief |
EP2619105A4 (en) * | 2010-09-23 | 2015-08-12 | Bemis Co Inc | Multilayer film with valve and package formed from the film |
WO2015125018A1 (en) * | 2014-02-20 | 2015-08-27 | Mondi Ag | Bag |
ES2582611A1 (en) * | 2015-03-13 | 2016-09-14 | Industrias Bolcar, S.A. | Multilayer bag with pressure outlet (Machine-translation by Google Translate, not legally binding) |
WO2019232603A1 (en) | 2018-06-05 | 2019-12-12 | Klabin S.A. | Constructive arrangement in paper bag |
WO2019232602A1 (en) | 2018-06-05 | 2019-12-12 | Klabin S.A. | Constructive arrangement in paper bag |
US10633285B2 (en) | 2015-08-31 | 2020-04-28 | Wacker Chemie Ag | Additive pack |
WO2020153910A1 (en) * | 2019-01-21 | 2020-07-30 | Suphantarida Nuttawat | Perforated bag for construction materials |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007063783B3 (en) * | 2007-04-18 | 2013-06-27 | Abts- Advanced Bag Technology & Service Gmbh | Flexible building material bag e.g. cement bag, has laminate comprising layers connected with each other, and inner and outer layers permeable to air, where laminate is permeable to air, and is perforated |
DE102007063784B3 (en) * | 2007-04-18 | 2013-06-27 | Abts- Advanced Bag Technology & Service Gmbh | Flexible building material bag e.g. cement bag, has laminate comprising layers connected with each other, and inner and outer layers permeable to air, where laminate is permeable to air, and is perforated |
DE102007018579B4 (en) | 2007-04-18 | 2012-03-15 | Abts- Advanced Bag Technology & Service Gmbh | Cement bag and manufacturing process |
EP2088088B1 (en) * | 2008-02-06 | 2012-10-31 | Bischof+Klein GmbH & Co. KG | Packaging container in bag or pouch form |
DE102009032756A1 (en) * | 2009-07-11 | 2011-01-13 | Nordfolien Gmbh | Packaging container with carrying aid |
DE102009036556A1 (en) * | 2009-08-10 | 2011-02-17 | Windmöller & Hölscher Kg | A method and apparatus for making a sack or bag with nonwoven material, and a sack or bag comprising nonwoven material |
HUP0900669A2 (en) | 2009-10-26 | 2010-07-28 | Zoltan Mandzsu | Plastic packing bag with overpressure relief, packing method and system |
DE202011106386U1 (en) | 2011-10-06 | 2011-11-18 | Nordfolien Gmbh | Ventable packaging container |
DE102011114969A1 (en) | 2011-10-06 | 2013-04-11 | Nordfolien Gmbh | Packaging container e.g. side-folding sack, for bulk materials e.g. food, has ventilation area comprising outer opening that is attached to shield element for directed deflection of partial flow of air flow passing through ventilation area |
AT512806B1 (en) * | 2012-04-23 | 2014-01-15 | Bsw Machinery Handels Gmbh | Fabric for the production of sacks |
DE202013004058U1 (en) * | 2013-04-30 | 2014-08-01 | Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh | paper bags |
DE202014000194U1 (en) * | 2014-01-10 | 2015-04-14 | Dy-Pack Verpackungen Gustav Dyckerhoff Gmbh | paper bags |
EP3283385A1 (en) * | 2015-04-17 | 2018-02-21 | Fiorini Packaging S.p.A. | Water resistant bag |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264007A (en) * | 1978-06-20 | 1981-04-28 | General Foods Corporation | Container having separate storage facilities for two materials |
US4596696A (en) * | 1983-11-15 | 1986-06-24 | Sybron Corporation | Disposable sterilizer mechanical air removal test pack |
US4672684A (en) * | 1983-10-06 | 1987-06-09 | C I L, Inc. | Thermoplastic bag |
US5460269A (en) * | 1993-02-18 | 1995-10-24 | Schonbek Worldwide Lighting Inc. | Skin packaging |
US5493844A (en) * | 1993-02-10 | 1996-02-27 | Haver & Boecker | Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container |
US5987850A (en) * | 1997-03-06 | 1999-11-23 | H.F. & Ph. F. Reemtsma Gmbh | Process for the application of a revenue seal to a cigarette pack |
US6132780A (en) * | 1998-10-09 | 2000-10-17 | General Mills, Inc. | Container for storing fine particles |
US6530471B1 (en) * | 1999-08-25 | 2003-03-11 | Best Products Co., Ltd | Storage bag |
US6821594B2 (en) * | 2002-03-13 | 2004-11-23 | Mitsubishi Gas Chemical Company, Inc. | Oxygen-absorbing label |
US20050053313A1 (en) * | 2003-09-09 | 2005-03-10 | Cargill, Inc. | Multi-handled sealed bag |
US20060110079A1 (en) * | 2004-06-29 | 2006-05-25 | Zimmerman Dean A | Storage bag |
Family Cites Families (7)
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---|---|---|---|---|
DE1486733A1 (en) * | 1965-09-25 | 1969-06-04 | Windmoeller & Hoelscher | Plastic valve bag |
GB1401713A (en) * | 1973-01-17 | 1975-07-30 | British Visqueen Ltd | Plastics sack |
DE8314629U1 (en) * | 1983-05-18 | 1983-10-27 | Bischof Und Klein Gmbh & Co, 4540 Lengerich | Flexible packaging in sack or bag form |
JPS60146042U (en) * | 1984-03-07 | 1985-09-27 | 千代田紙業株式会社 | multilayer paper bags |
DE19538146A1 (en) * | 1995-10-13 | 1997-04-17 | Rovema Gmbh | Pouch with at least one vent and method of making the pouch |
JP3215658B2 (en) * | 1997-09-10 | 2001-10-09 | 大倉工業株式会社 | Granule storage bag |
JP3902494B2 (en) * | 2001-07-19 | 2007-04-04 | 博之 山田 | Bag body having deaeration structure and manufacturing method thereof |
-
2004
- 2004-03-18 DE DE102004013469A patent/DE102004013469A1/en not_active Withdrawn
-
2005
- 2005-03-10 CN CN2005800085367A patent/CN1934005B/en not_active Expired - Fee Related
- 2005-03-10 WO PCT/EP2005/002545 patent/WO2005092724A1/en active IP Right Grant
- 2005-03-10 ES ES05715923T patent/ES2293542T3/en active Active
- 2005-03-10 DE DE502005001681T patent/DE502005001681D1/en active Active
- 2005-03-10 AT AT05715923T patent/ATE375307T1/en not_active IP Right Cessation
- 2005-03-10 JP JP2007502293A patent/JP2007535447A/en active Pending
- 2005-03-10 EP EP05715923A patent/EP1725466B1/en not_active Not-in-force
- 2005-03-10 US US10/598,848 patent/US20070181459A1/en not_active Abandoned
- 2005-03-16 TW TW094107959A patent/TWI303615B/en not_active IP Right Cessation
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264007A (en) * | 1978-06-20 | 1981-04-28 | General Foods Corporation | Container having separate storage facilities for two materials |
US4672684A (en) * | 1983-10-06 | 1987-06-09 | C I L, Inc. | Thermoplastic bag |
US4596696A (en) * | 1983-11-15 | 1986-06-24 | Sybron Corporation | Disposable sterilizer mechanical air removal test pack |
US5493844A (en) * | 1993-02-10 | 1996-02-27 | Haver & Boecker | Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container |
US5460269A (en) * | 1993-02-18 | 1995-10-24 | Schonbek Worldwide Lighting Inc. | Skin packaging |
US5987850A (en) * | 1997-03-06 | 1999-11-23 | H.F. & Ph. F. Reemtsma Gmbh | Process for the application of a revenue seal to a cigarette pack |
US6132780A (en) * | 1998-10-09 | 2000-10-17 | General Mills, Inc. | Container for storing fine particles |
US6530471B1 (en) * | 1999-08-25 | 2003-03-11 | Best Products Co., Ltd | Storage bag |
US6821594B2 (en) * | 2002-03-13 | 2004-11-23 | Mitsubishi Gas Chemical Company, Inc. | Oxygen-absorbing label |
US20050053313A1 (en) * | 2003-09-09 | 2005-03-10 | Cargill, Inc. | Multi-handled sealed bag |
US20060110079A1 (en) * | 2004-06-29 | 2006-05-25 | Zimmerman Dean A | Storage bag |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110188786A1 (en) * | 2004-05-27 | 2011-08-04 | Heinemeier Juergen | Plastic Bag with Overpressure Relief |
US8371752B2 (en) | 2004-05-27 | 2013-02-12 | Juergen Heinemeier | Plastic bag with overpressure relief |
US20080144979A1 (en) * | 2006-11-06 | 2008-06-19 | Marko I.R.D.C. | Plastic bag with improved air evacuation structure |
US20080152266A1 (en) * | 2006-12-18 | 2008-06-26 | Bischof + Klein Gmbh & Co. Kg | Packaging in the Form of a Bag |
US8083411B2 (en) | 2006-12-18 | 2011-12-27 | Bischof + Klein Gmbh & Co. Kg | Packaging in the form of a bag |
EP2619105A4 (en) * | 2010-09-23 | 2015-08-12 | Bemis Co Inc | Multilayer film with valve and package formed from the film |
WO2015125018A1 (en) * | 2014-02-20 | 2015-08-27 | Mondi Ag | Bag |
US9873553B2 (en) | 2014-02-20 | 2018-01-23 | Mondi Ag | Bag |
RU2682428C2 (en) * | 2014-02-20 | 2019-03-19 | Монди Аг | Bag |
ES2582611A1 (en) * | 2015-03-13 | 2016-09-14 | Industrias Bolcar, S.A. | Multilayer bag with pressure outlet (Machine-translation by Google Translate, not legally binding) |
US10633285B2 (en) | 2015-08-31 | 2020-04-28 | Wacker Chemie Ag | Additive pack |
WO2019232603A1 (en) | 2018-06-05 | 2019-12-12 | Klabin S.A. | Constructive arrangement in paper bag |
WO2019232602A1 (en) | 2018-06-05 | 2019-12-12 | Klabin S.A. | Constructive arrangement in paper bag |
WO2020153910A1 (en) * | 2019-01-21 | 2020-07-30 | Suphantarida Nuttawat | Perforated bag for construction materials |
Also Published As
Publication number | Publication date |
---|---|
EP1725466B1 (en) | 2007-10-10 |
CN1934005A (en) | 2007-03-21 |
ATE375307T1 (en) | 2007-10-15 |
WO2005092724A1 (en) | 2005-10-06 |
DE102004013469A1 (en) | 2005-10-06 |
DE502005001681D1 (en) | 2007-11-22 |
CN1934005B (en) | 2010-06-02 |
TWI303615B (en) | 2008-12-01 |
ES2293542T3 (en) | 2008-03-16 |
TW200531893A (en) | 2005-10-01 |
JP2007535447A (en) | 2007-12-06 |
EP1725466A1 (en) | 2006-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: WACKER POLYMER SYSTEMS GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LINDLBAUER, FRANZ;REEL/FRAME:018256/0385 Effective date: 20060911 |
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AS | Assignment |
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