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1. (WO2007008753) LAYERED FILM COMPOSITIONS, PACKAGES PREPARED THEREFROM, AND METHODS OF USE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/008753 International Application No.: PCT/US2006/026667
Publication Date: 18.01.2007 International Filing Date: 07.07.2006
Chapter 2 Demand Filed: 08.05.2007
IPC:
B32B 27/32 (2006.01) ,B65D 33/01 (2006.01) ,B65D 30/26 (2006.01) ,B65D 65/40 (2006.01) ,B65D 77/22 (2006.01) ,B65B 51/10 (2006.01) ,B26F 1/24 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
32
comprising polyolefins
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
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
33
Details of, or accessories for, sacks or bags
01
Ventilation or draining of bags
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
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
30
Sacks, bags or like containers
10
characterised by shape or construction
24
Bags having valves
26
multi-layered
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
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
65
Wrappers or flexible covers; Packaging materials of special type or form
38
Packaging materials of special type or form
40
Applications of laminates for particular packaging purposes
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
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
77
Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
22
Details
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B
MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
51
Devices for, or methods of, sealing or securing package folds or closures, e.g. twisted bag necks
10
Applying or generating heat or pressure or combinations thereof
B PERFORMING OPERATIONS; TRANSPORTING
26
HAND CUTTING TOOLS; CUTTING; SEVERING
F
PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
1
Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
24
Perforating by needles or pins
Applicants:
DOW GLOBAL TECHNOLOGIES INC. [US/US]; 2040 Dow Center Midland, MI 48674, US (AllExceptUS)
BONGARTZ, Herbert [DE/CH]; CH (UsOnly)
KRONAWITTLEITHNER, Kurt [AT/CH]; CH (UsOnly)
DESCHEEMAEKER, Anne [FR/ES]; ES (UsOnly)
Inventors:
BONGARTZ, Herbert; CH
KRONAWITTLEITHNER, Kurt; CH
DESCHEEMAEKER, Anne; ES
Agent:
TERRY, Jane, M.; DOW GLOBAL TECHNOLOGIES INC. 2040 Dow Center Midland, MI 48674, US
Priority Data:
60/697,91508.07.2005US
Title (EN) LAYERED FILM COMPOSITIONS, PACKAGES PREPARED THEREFROM, AND METHODS OF USE
(FR) COMPOSITIONS DE FILM EN COUCHES, CONDITIONNEMENTS PREPARES A PARTIR DE CELLES-CI ET PROCEDES D'UTILISATION
Abstract:
(EN) The invention relates to a perforated film composition, comprising at least three layers, and wherein at least one layer is a inner layer with a softening and/or melting temperature, lower than the respective softening and/or melting temperatures of at least two outer layers, located at opposite surfaces of the inner layer, and where upon exposure to elevated temperature, the inner layer softens or melts to such an extent, that upon exposure to a compression force, a sufficient number of perforations seal in the inner layer, to impart an increased moisture barrier to the overall film composition. The invention also relates to a method of forming such a perforated film composition, packages prepared from the same, and a method of filling packages prepared from the perforated film composition.
(FR) L'invention concerne une composition de film perforé comprenant au moins trois couches, au moins une couche étant une couche intérieure dont la température de ramollissement et/ou de fusion est inférieure à la température de ramollissement et/ou de fusion respective d'au moins deux couches extérieures se situant de part et d'autre de la couche intérieure; lorsqu'elle est exposée à une température élevée, la couche intérieure se ramollit ou fond de sorte que, si elle est soumise à une force de compression, un nombre suffisant de perforations sont obturées dans la couche intérieure pour conférer à l'ensemble de la composition de film des propriétés barrière contre l'humidité accrues. L'invention concerne aussi un procédé d'élaboration d'une telle composition de film perforé, des conditionnements préparés à partir de celle-ci et un procédé de remplissage de conditionnements préparés à partir de cette composition.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXMX/a/2008/000173KR1020080034914EP1904304JP2009500205BRPI0615521US20080202075
RU0002427467CN101232997CA2614337ES2551304AU2006269226ID048.2323
MYPI 20063236TH83542IN126/CHENP/2008