CA2253218A1 - Coextruded blown film and products made using the same - Google Patents

Coextruded blown film and products made using the same Download PDF

Info

Publication number
CA2253218A1
CA2253218A1 CA002253218A CA2253218A CA2253218A1 CA 2253218 A1 CA2253218 A1 CA 2253218A1 CA 002253218 A CA002253218 A CA 002253218A CA 2253218 A CA2253218 A CA 2253218A CA 2253218 A1 CA2253218 A1 CA 2253218A1
Authority
CA
Canada
Prior art keywords
blown film
layer
film
low density
density polyethylene
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
Application number
CA002253218A
Other languages
English (en)
French (fr)
Inventor
William E. Heikkila
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.)
Individual
Original Assignee
Union Camp 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 Union Camp Corp filed Critical Union Camp Corp
Publication of CA2253218A1 publication Critical patent/CA2253218A1/en
Abandoned legal-status Critical Current

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
CA002253218A 1996-05-20 1997-05-14 Coextruded blown film and products made using the same Abandoned CA2253218A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1768196P 1996-05-20 1996-05-20
US60/017,681 1996-05-20

Publications (1)

Publication Number Publication Date
CA2253218A1 true CA2253218A1 (en) 1997-11-27

Family

ID=21783985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002253218A Abandoned CA2253218A1 (en) 1996-05-20 1997-05-14 Coextruded blown film and products made using the same

Country Status (3)

Country Link
EP (1) EP0906181A1 (enExample)
CA (1) CA2253218A1 (enExample)
WO (1) WO1997044178A1 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006676A1 (en) 1996-08-13 1998-02-19 Nippon Sheet Glass Co., Ltd. LASER MACHINING METHOD FOR GlASS SUBSTRATE, DIFFRACTION TYPE OPTICAL DEVICE FABRICATED BY THE MACHINING METHOD, AND METHOD OF MANUFACTURING OPTICAL DEVICE
WO1998037139A1 (en) 1997-02-25 1998-08-27 Exxon Chemical Patents Inc. Heat sealable films
US6094889A (en) * 1997-02-25 2000-08-01 Exxon Chemical Patents, Inc. Method of form and seal packaging
PL335377A1 (en) * 1997-02-25 2000-04-25 Exxon Chemical Patents Inc Welds between polyethylene and its substrate
ES2264199T3 (es) * 1997-02-25 2006-12-16 Exxonmobil Chemical Patents Inc. Peliculas orientadas coextrudidas.
US6423420B1 (en) 1997-08-11 2002-07-23 Exxonmobil Chemical Patents Inc. Oriented coextruded films
US6237308B1 (en) 1999-05-14 2001-05-29 Glopak Inc. High-speed pouch forming, sealing and filling machine, method of operation, and multi-layer film therefore
US20020009579A1 (en) 1999-05-17 2002-01-24 Yves Quintin Multi-layer film structure for use with a high-speed pouch forming, filling and sealing machine
FR2837471B1 (fr) * 2002-03-25 2004-07-09 Flexico France Sarl Film notamment pour sachet d'emballage
EP1495861A1 (en) * 2003-07-10 2005-01-12 Total Petrochemicals Research Feluy High transparency, high impact resistance containers
US7217767B2 (en) 2004-07-06 2007-05-15 Fina Technology, Inc. Blends of polypropylene impact copolymer with other polymers
US20060147663A1 (en) * 2004-12-30 2006-07-06 Fina Technology, Inc. Co-extruded film structures of polypropylene impact copolymer with other polymers
US20070082155A1 (en) * 2005-10-12 2007-04-12 Rehkugler Richard A Polymer films and methods of producing and using such films
US7915342B2 (en) 2005-11-28 2011-03-29 Fina Techology, Inc. Breathable films
EP2006070A1 (en) 2007-06-22 2008-12-24 Total Petrochemicals Research Feluy Process for producing a polyethylene-polypropylene multilayer blown film
EP2075125A1 (en) * 2007-12-19 2009-07-01 Total Petrochemicals Research Feluy Corona treated polyethylene films
US9084444B2 (en) 2010-05-25 2015-07-21 Inteplast Group, Ltd. Disposable gloves and glove material compositions
EP2554374B1 (en) 2011-08-01 2016-03-16 The Procter & Gamble Company A multilayer film, packages comprising the multilayer film, and processes for making
US9131737B2 (en) 2011-09-15 2015-09-15 Inteplast Group, Ltd. Disposable gloves and glove material compositions including a coloring agent
US9084445B2 (en) 2011-09-15 2015-07-21 Inteplast Group, Ltd. Disposable gloves and glove material compositions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222740A1 (de) * 1992-07-10 1994-01-13 Hoechst Ag Niedrig siegelnde, biaxial orientierte Polyolefin-Mehrschichtfolie mit hohem Schrumpf
US5491019A (en) * 1994-03-28 1996-02-13 W. R. Grace & Co.-Conn. Oxygen-permeable multilayer film

Also Published As

Publication number Publication date
EP0906181A4 (enExample) 1999-04-07
EP0906181A1 (en) 1999-04-07
WO1997044178A1 (en) 1997-11-27

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Legal Events

Date Code Title Description
FZDE Discontinued