WO1998021032A3 - Multi-layer flexible container for flowable materials - Google Patents

Multi-layer flexible container for flowable materials Download PDF

Info

Publication number
WO1998021032A3
WO1998021032A3 PCT/US1997/020834 US9720834W WO9821032A3 WO 1998021032 A3 WO1998021032 A3 WO 1998021032A3 US 9720834 W US9720834 W US 9720834W WO 9821032 A3 WO9821032 A3 WO 9821032A3
Authority
WO
WIPO (PCT)
Prior art keywords
flexible container
density polyethylene
linear
alpha
layer
Prior art date
Application number
PCT/US1997/020834
Other languages
French (fr)
Other versions
WO1998021032A2 (en
Inventor
Ramin Heydarpour
Ann-Magret Asp
Kamil Tokatli
Original Assignee
Tetra Laval Holdings & Finance
Ramin Heydarpour
Asp Ann Magret
Kamil Tokatli
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
Priority claimed from US08/749,442 external-priority patent/US5843540A/en
Application filed by Tetra Laval Holdings & Finance, Ramin Heydarpour, Asp Ann Magret, Kamil Tokatli filed Critical Tetra Laval Holdings & Finance
Priority to AU54388/98A priority Critical patent/AU5438898A/en
Publication of WO1998021032A2 publication Critical patent/WO1998021032A2/en
Publication of WO1998021032A3 publication Critical patent/WO1998021032A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/54—Cards, coupons, or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B65D75/566—Hand holes or suspension apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2331/00—Polyvinylesters
    • B32B2331/04—Polymers of vinyl acetate, e.g. PVA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Abstract

A flexible container for a flowable material fabricated from a multi-layer film which may include an interior layer, an exterior layer and a core layer. The core layer is composed of a blend of approximately 20 to 100 parts of a linear C4-C10 alpha-olefin polyethylene material having a density greater than 0.930 and 0.970 g/cm3 and a melt index of 0.2 to 2.0 dg/min, approximately 0 to 80 parts of a linear ethylene and a C¿4?-C10 alpha-olefin copolymer having a density between 0.900 to 0.930 g/cm?3¿ and a melt index of 0.20 to 2.0 dg/min, and approximately from 0 to 10 parts of an additive. The interior layer may be composed of a material selected from the group consisting of a linear copolymer of ethylene and a C¿4?-C10 alpha-olefin, ethylene vinyl acetate, a metallocene catalyzed linear low density polyethylene, and any mixture thereof. The exterior layer is composed of a material selected from the group consisting of surlyn, metallocene catalyzed linear low density polyethylene, a linear copolymer of ethylene and a C4-C10 alpha-olefin, a low density polyethylene, a medium density polyethylene, a high density polyethylene, ethylene vinyl acetate and any mixture thereof. The flexible container is self-supporting when filled with the flowable material. The flexible container has a relatively planar bottom section. The flexible container may have a resealable opening for dispensing the flowable material whereby the flexible container is compressible as the amount of flowable material inside the flexible container is reduced.
PCT/US1997/020834 1996-11-15 1997-11-12 Multi-layer flexible container for flowable materials WO1998021032A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54388/98A AU5438898A (en) 1996-11-15 1997-11-12 Multi-layer flexible container for flowable materials

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/749,442 1996-11-15
US08/749,442 US5843540A (en) 1996-11-15 1996-11-15 Multi-layer flexible container for flowable materials
US78968297A 1997-01-27 1997-01-27
US08/789,682 1997-01-27

Publications (2)

Publication Number Publication Date
WO1998021032A2 WO1998021032A2 (en) 1998-05-22
WO1998021032A3 true WO1998021032A3 (en) 1998-09-03

Family

ID=27115122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/020834 WO1998021032A2 (en) 1996-11-15 1997-11-12 Multi-layer flexible container for flowable materials

Country Status (2)

Country Link
AU (1) AU5438898A (en)
WO (1) WO1998021032A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002219614A1 (en) * 2001-01-15 2002-07-24 Showa Denko Plastic Products Co., Ltd. Laminate and container
AU2003201931A1 (en) * 2003-01-14 2004-08-10 Cheon Kyung Co., Ltd. Container having a double wall structure, manufacturing method and apparatus therefor
CN116906028B (en) * 2023-07-26 2024-01-30 中国科学院声学研究所 Real-time imaging acquisition control system of wall of a well supersound

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380567A (en) * 1980-10-09 1983-04-19 Mitsui Petrochemical Industries, Ltd. Ethylenic composite film structure
US4565720A (en) * 1983-07-27 1986-01-21 Idemitsu Petrochemical Co., Ltd. Packaging bag
US4574104A (en) * 1983-11-14 1986-03-04 Idemitsu Petrochemical Co., Ltd. Multi-layer film
JPH04266759A (en) * 1991-02-21 1992-09-22 Showa Denko Kk Medical bag
US5501887A (en) * 1992-12-28 1996-03-26 Mitsui Petrochemical Industries, Ltd. Resin laminate
EP0729831A1 (en) * 1994-09-20 1996-09-04 KOHJIN CO. Ltd. Multilayer stretchable and shrinkable polyethylene film and process for producing the same
US5576038A (en) * 1995-03-10 1996-11-19 James River Paper Company, Inc. Liquid packaging film
EP0801096A1 (en) * 1996-04-12 1997-10-15 W.R. Grace & Co.-Conn. Heat sealable film

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380567A (en) * 1980-10-09 1983-04-19 Mitsui Petrochemical Industries, Ltd. Ethylenic composite film structure
US4565720A (en) * 1983-07-27 1986-01-21 Idemitsu Petrochemical Co., Ltd. Packaging bag
US4574104A (en) * 1983-11-14 1986-03-04 Idemitsu Petrochemical Co., Ltd. Multi-layer film
JPH04266759A (en) * 1991-02-21 1992-09-22 Showa Denko Kk Medical bag
US5501887A (en) * 1992-12-28 1996-03-26 Mitsui Petrochemical Industries, Ltd. Resin laminate
EP0729831A1 (en) * 1994-09-20 1996-09-04 KOHJIN CO. Ltd. Multilayer stretchable and shrinkable polyethylene film and process for producing the same
US5576038A (en) * 1995-03-10 1996-11-19 James River Paper Company, Inc. Liquid packaging film
EP0801096A1 (en) * 1996-04-12 1997-10-15 W.R. Grace & Co.-Conn. Heat sealable film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9244, Derwent World Patents Index; Class A17, AN 92-363045, XP002059656 *

Also Published As

Publication number Publication date
AU5438898A (en) 1998-06-03
WO1998021032A2 (en) 1998-05-22

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