FI79275B - Transportsaeck. - Google Patents

Transportsaeck. Download PDF

Info

Publication number
FI79275B
FI79275B FI844198A FI844198A FI79275B FI 79275 B FI79275 B FI 79275B FI 844198 A FI844198 A FI 844198A FI 844198 A FI844198 A FI 844198A FI 79275 B FI79275 B FI 79275B
Authority
FI
Finland
Prior art keywords
laminated
layers
low density
polyethylene
density polyethylene
Prior art date
Application number
FI844198A
Other languages
English (en)
Finnish (fi)
Other versions
FI79275C (sv
FI844198A0 (fi
FI844198L (fi
Inventor
Charles Robertson Murray
Ray Edward Harrison
Original Assignee
Canadian Ind
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 CA000451106A external-priority patent/CA1228578A/en
Application filed by Canadian Ind filed Critical Canadian Ind
Publication of FI844198A0 publication Critical patent/FI844198A0/fi
Publication of FI844198L publication Critical patent/FI844198L/fi
Application granted granted Critical
Publication of FI79275B publication Critical patent/FI79275B/fi
Publication of FI79275C publication Critical patent/FI79275C/sv

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8238—Impact tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B29C66/73712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented mono-axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/516—Oriented mono-axially
    • 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
    • B32B2323/046—LDPE, i.e. low density 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
    • B32B2439/00—Containers; Receptacles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S383/00—Flexible bags
    • Y10S383/908—Material having specified grain direction or molecular orientation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/91—Product with molecular orientation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer

Claims (7)

1. Transportsäck (10) av termoplast, vilken säck uppvlsar en främre vägg (11) och en bakre vägg (12), vilka vardera omfattar ett tvärlaminerat sklkt (15), som inne-häller ätminstone tvä polyetylenark, vilka har orienterats 5. en riktning genom en ätminstone 2,5-dubbel tänjning och bundits sanunan, varvid tili de laminerade skikten har anslutits tvä etylenskikt (13) med läg täthet, k ä n n e-t e c k n a d därav, att de laminerade skikten har värme-förseglats med varandra för bildande av ett värmeförseg-10 lingsomräde, som omfattar de tvä polyetylenskikten (13) med läg täthet, att de bäda tili varandra anslutna skikten (13) utgör ett enskilt inre skikt för säcken och omfattar ett ark av odragen etylenhomopolymer eller -kopolymer med läg täthet, eller en blandning av dessa, vilket arks 15 tjocklek är ätminstone 0,0127 mm, och att det värmeförseg-lade omrädet omfattar en i ett stycke utförd, därtill hö-rande laminerad tätning, vars längd är minst 2 mm.
2. Säck enligt patentkravet 1, känneteck-n a d därav, att de tili varandra anslutna skikten (13) 20 utgörs av polyetylen med läg täthet, lineärt polyetylen med läg täthet, etylenvinylacetatpolymer eller en blandning av dessa.
3. Säck enligt nägot av de föregäende patentkraven, kännetecknad därav, att det tvärlaminerade 25 skiktet (15) omfattar ätminstone tvä i en riktning orien-terade sammanbundna polyetylenark, varvid som polyetylen har valts polyetylen med hög eller läg täthet eller lineärt polyetylen med läg täthet.
4. Säck enligt nägot av de föregäende patentkraven, 30 kännetecknad därav, att den främre väggen (11) och den bakre väggen (12) är anordnade sä, att en upptill öppen säck bildas.
5. Säck enligt nägot av patentkraven 1-3,
FI844198A 1983-11-28 1984-10-25 Transportsäck. FI79275C (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA442097 1983-11-28
CA442097 1983-11-28
CA000451106A CA1228578A (en) 1984-04-02 1984-04-02 Shipping bag
CA451106 1984-04-02

Publications (4)

Publication Number Publication Date
FI844198A0 FI844198A0 (fi) 1984-10-25
FI844198L FI844198L (fi) 1985-05-29
FI79275B true FI79275B (fi) 1989-08-31
FI79275C FI79275C (sv) 1989-12-11

Family

ID=25670225

Family Applications (1)

Application Number Title Priority Date Filing Date
FI844198A FI79275C (sv) 1983-11-28 1984-10-25 Transportsäck.

Country Status (8)

Country Link
US (2) US4576844A (sv)
EP (1) EP0146270B1 (sv)
AU (1) AU571895B2 (sv)
BR (1) BR8405963A (sv)
DE (1) DE3472545D1 (sv)
DK (1) DK158504C (sv)
FI (1) FI79275C (sv)
NZ (1) NZ209830A (sv)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE56700B1 (en) * 1984-11-30 1991-11-06 Canadian Ind Thermoplastic sacks
CA1237392A (en) * 1985-10-21 1988-05-31 Jeffrey S. Beer Smooth walled flexible package
US4658434A (en) * 1986-05-29 1987-04-14 Grain Security Foundation Ltd. Laminates and laminated articles
US4680207A (en) * 1986-07-23 1987-07-14 C-I-L Inc. Thermoplastic sack
US4929303A (en) * 1987-03-11 1990-05-29 Exxon Chemical Patents Inc. Composite breathable housewrap films
US4894265A (en) * 1988-01-15 1990-01-16 Free-Flow Packaging Corporation Bubble-type cushioning and packaging sheet and method of manufacture
US4994324A (en) * 1989-01-19 1991-02-19 Union Camp Corporation Hot-fill polyethylene bags
WO1991016199A1 (en) * 1990-04-23 1991-10-31 Dowbrands Inc. Free edge-sealed film articles and process of making same
US5037379A (en) * 1990-06-22 1991-08-06 Vance Products Incorporated Surgical tissue bag and method for percutaneously debulking tissue
US5158499A (en) * 1990-07-09 1992-10-27 American National Can Company Laser scoring of packaging substrates
US5182162A (en) * 1990-10-24 1993-01-26 Amoco Corporation Self-bonded nonwoven web and net-like web composites
US5399426A (en) * 1992-10-19 1995-03-21 The Dow Chemical Company Polyethylene stretch films
DE9312664U1 (de) * 1993-08-24 1993-11-25 Hassia Verpackung Ag Schlauchbeutelpackung
US5823683A (en) * 1995-10-23 1998-10-20 Amoco Corporation Self-seaming produce bag
US6258308B1 (en) 1996-07-31 2001-07-10 Exxon Chemical Patents Inc. Process for adjusting WVTR and other properties of a polyolefin film
US6974406B2 (en) * 1998-09-22 2005-12-13 Paul Antonacci Side-sealed bag having label section and method of production therefor
US6953510B1 (en) 1998-10-16 2005-10-11 Tredegar Film Products Corporation Method of making microporous breathable film
AU6429899A (en) 1998-10-16 2000-05-08 Exxon Chemical Patents Inc. Process for producing polyolefin microporous breathable film
EP1033238A1 (en) * 1999-03-04 2000-09-06 Newform N.V. Seal for a sterilizable bag and method of making the same
US6391411B1 (en) * 1999-06-03 2002-05-21 Printpack Illinois, Inc. Machine direction oriented high molecular weight, high density polyethylene films with enhanced water vapor transmission properties
US6722542B2 (en) * 2000-08-16 2004-04-20 Mcmurray Fabrics, Inc. Side entry storage net
CN100374355C (zh) * 2002-08-23 2008-03-12 覃通衡 一种塑料薄膜锁口袋及其制造方法
US20040175464A1 (en) * 2003-03-07 2004-09-09 Blemberg Robert J. Multilayer structures, packages, and methods of making multilayer structures
US20040175466A1 (en) 2003-03-07 2004-09-09 Douglas Michael J. Multilayer barrier structures, methods of making the same and packages made therefrom
US7717620B2 (en) 2004-06-11 2010-05-18 Sonoco Development, Inc. Flexible packaging structure with a built-in opening and reclose feature, and method for making same
US11807438B2 (en) 2005-04-05 2023-11-07 Sonoco Development, Inc. Flexible packaging structure with a built-in opening and reclose feature
US7581886B2 (en) * 2005-09-23 2009-09-01 Boss Licensing Group, Inc. Shipping bag reversible into a tote
US8602651B2 (en) * 2005-09-23 2013-12-10 Boss Licensing Group, Inc. Shipping bag reversible into a cosmetic bag
US20070218796A1 (en) * 2006-03-17 2007-09-20 Yao Peter C Paper composite for billboards and banners
ATE491647T1 (de) 2007-08-10 2011-01-15 Borealis Tech Oy Artikel der eine polypropylenzusammensetzung beinhaltet
EP2067799A1 (en) 2007-12-05 2009-06-10 Borealis Technology OY Polymer
US10493688B2 (en) 2008-03-06 2019-12-03 Sonoco Development, Inc. Flexible packaging structure with built-in tamper-evidence features and method for making same
US9975290B2 (en) 2008-03-06 2018-05-22 Sonoco Development, Inc. Flexible packaging structure with built-in tamper-evidence features and method for making same
US8142077B2 (en) * 2008-04-16 2012-03-27 Graphic Packaging International, Inc. Bag structures and methods of assembling the same
US20090263048A1 (en) * 2008-04-16 2009-10-22 Iannelli Ii Michael Louis Bag Structures And Methods Of Assembling The Same
US20100015423A1 (en) * 2008-07-18 2010-01-21 Schaefer Suzanne E Polyamide structures for the packaging of moisture containing products
CA2771574A1 (en) * 2009-08-27 2011-03-17 Graphic Packaging International, Inc. Reinforced bag
PL2354184T3 (pl) 2010-01-29 2013-01-31 Borealis Ag Tłoczywo polietylenowe o ulepszonym stosunku odporność na pękanie /sztywność i ulepszone udarności
EP2354183B1 (en) 2010-01-29 2012-08-22 Borealis AG Moulding composition
US8448828B2 (en) * 2010-02-09 2013-05-28 Boss Licensing Group, Inc. Shipping bag reversible into a backpack
US9669981B2 (en) 2012-02-13 2017-06-06 Polytex Fibers Corporation Easy open plastic bags
US9845184B2 (en) * 2012-02-13 2017-12-19 Polytex Fibers Corporation Easy open plastic bags
US9969529B2 (en) 2012-02-13 2018-05-15 Polytex Fibers Corporation Easy open plastic bags
US11459157B2 (en) 2012-02-13 2022-10-04 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage and infestations
JP2015531725A (ja) 2012-08-23 2015-11-05 ウォータービュー・イノベーション・エルエルシーＷａｔｅｒｖｉｅｗ Ｉｎｎｏｖａｔｉｏｎ，Ｌｌｃ 不織繊維材料で形成された再利用可能な多目的袋
US11305927B2 (en) 2014-04-04 2022-04-19 Polytex Fibers Llc Easy open plastic bags
FR3108100B1 (fr) * 2020-03-10 2022-02-18 Coveris Flexibles France Procédé de fabrication d’un sac à soufflets, et sac à soufflets perfectionné
NL2028149B1 (nl) * 2021-05-05 2022-11-23 Conteyor Int Nv Antistatische folie en verpakkingsmateriaal vervaardigd uit deze folie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367001A (en) * 1971-03-24 1974-09-18 Canadian Ind Plastics bag
CA984346A (en) * 1971-03-24 1976-02-24 Canadian Industries Limited Valve bag
JPS5619087Y2 (sv) * 1976-04-07 1981-05-07
CA1157617A (en) * 1977-12-14 1983-11-29 Milton L. Weiner Oriented polypropylene with linear low density polyethylene copolymer coating
US4360550A (en) * 1979-09-12 1982-11-23 Toyo Kagaku Kabushiki Kaisha Composite packing film and packing bag made of the same
US4399173A (en) * 1982-01-04 1983-08-16 Union Carbide Corporation Multilayer films comprising low pressure, low density polyethylene

Also Published As

Publication number Publication date
US4681781A (en) 1987-07-21
EP0146270B1 (en) 1988-07-06
DK158504B (da) 1990-05-28
DK158504C (da) 1990-10-29
FI79275C (sv) 1989-12-11
EP0146270A1 (en) 1985-06-26
DE3472545D1 (en) 1988-08-11
US4576844A (en) 1986-03-18
BR8405963A (pt) 1985-09-17
DK550084D0 (da) 1984-11-20
AU571895B2 (en) 1988-04-28
DK550084A (da) 1985-05-29
FI844198A0 (fi) 1984-10-25
FI844198L (fi) 1985-05-29
NZ209830A (en) 1987-04-30
AU3385784A (en) 1985-06-06

Similar Documents

Publication Publication Date Title
FI79275B (fi) Transportsaeck.
FI94401C (sv) Termoplastisk transportpåse, kalldragen polyetenfilm och termoplastisk laminat
JP2848635B2 (ja) 可撓性折り目付き包装材料
CA2050737C (en) Improved laminated multilayer film composite and heat sealed bag made therefrom
FI120969B (sv) Påse gjord av polymertyg, speciellt polyolefintyg, och förfarande för framställning därav
US5823683A (en) Self-seaming produce bag
FI84333C (sv) Termoplastsäckar
NZ503543A (en) Open mesh bag with heat sealed seams utilising a sealing strip
WO1995033621A1 (en) Laminates for form-fill-seal packaging
US20080085065A1 (en) Package with folded handle and method for making same
US20110142377A1 (en) Laminate Bag Having Windows
US6949275B2 (en) Packaging laminate and container including it
CA2354070C (en) Coextruded multilayer film materials and containers made therefrom
JP2001000022U (ja) 可撓性包装材料および液密容器
JP2001206384A (ja) 底ガセット型スタンディングパウチのシール形状及びシール方法
JP2001192068A (ja) 加圧密封用袋、包装体、および包装体の製造法
EP2202172A2 (en) Laminate bag having windows
CA1228578A (en) Shipping bag
WO2010122579A1 (en) Polymeric tape woven fabric bag and method for making thereto
JP4297474B2 (ja) 多重袋の製造方法
JP3442456B2 (ja) 包装用フィルム
WO2022064301A1 (en) A multi-layer bag package and a continuous tubular element for making said package
JP2022011648A (ja) 製袋充填方法
JPH04279455A (ja) 袋
JP2000142728A (ja) 粒状物包装用袋

Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: C-L-I INC.