CA1308858C - Process for extrusion - Google Patents

Process for extrusion

Info

Publication number
CA1308858C
CA1308858C CA000586708A CA586708A CA1308858C CA 1308858 C CA1308858 C CA 1308858C CA 000586708 A CA000586708 A CA 000586708A CA 586708 A CA586708 A CA 586708A CA 1308858 C CA1308858 C CA 1308858C
Authority
CA
Canada
Prior art keywords
molecular weight
film
weight
average molecular
copolymer
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.)
Expired - Lifetime
Application number
CA000586708A
Other languages
English (en)
French (fr)
Inventor
William Donald Heitz
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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 Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of CA1308858C publication Critical patent/CA1308858C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • 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
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • 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
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/02—Condition, form or state of moulded material or of the material to be shaped heat shrinkable
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CA000586708A 1987-12-22 1988-12-21 Process for extrusion Expired - Lifetime CA1308858C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/136,719 US4814135A (en) 1987-12-22 1987-12-22 Process for extrusion
US136,719 1987-12-22

Publications (1)

Publication Number Publication Date
CA1308858C true CA1308858C (en) 1992-10-13

Family

ID=22474065

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000586708A Expired - Lifetime CA1308858C (en) 1987-12-22 1988-12-21 Process for extrusion

Country Status (11)

Country Link
US (1) US4814135A (enExample)
EP (1) EP0321964B1 (enExample)
JP (1) JPH0661813B2 (enExample)
KR (1) KR930010553B1 (enExample)
CN (1) CN1017788B (enExample)
AT (1) ATE82545T1 (enExample)
BR (1) BR8806771A (enExample)
CA (1) CA1308858C (enExample)
DE (1) DE3876082T2 (enExample)
ES (1) ES2035233T3 (enExample)
GR (1) GR3007029T3 (enExample)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3851667T2 (de) * 1987-07-13 1995-02-16 Mitsubishi Chem Ind Lineare Polyäthylen-Folie und Verfahren zu ihrer Herstellung.
FI82633C (fi) * 1987-10-12 1991-04-10 Muolon Oy Foerfarande foer framstaellning av en krympande produkt.
US5115068A (en) * 1988-09-26 1992-05-19 Phillips Petroleum Company High strength linear, low density ethylene copolymer
CA2003882C (en) * 1988-12-19 1997-01-07 Edwin Rogers Smith Heat shrinkable very low density polyethylene terpolymer film
US5102955A (en) * 1989-12-29 1992-04-07 Mobil Oil Corporation Broad distribution, high molecular weight low density polyethylene and method of making thereof
US8865294B2 (en) 2012-10-25 2014-10-21 The Glad Products Company Thermoplastic multi-ply film with metallic appearance
US9604429B2 (en) 2010-11-16 2017-03-28 The Glad Products Company Ribbed film structures with pigment created visual characteristics
US9566760B2 (en) 2010-11-16 2017-02-14 The Glad Products Company Ribbed film structures with voiding agent created visual characteristics
US9381718B2 (en) 2011-04-25 2016-07-05 The Glad Products Company Multi-layered films with visually-distinct regions and methods of making the same
US9393757B2 (en) 2010-11-16 2016-07-19 The Glad Products Company Discontinuously laminated film structures with improved visual characteristics
DE69226715T2 (de) * 1991-02-07 1999-10-28 Applied Extrusion Technologies, Inc. Verfahren zur Herstellung von schrumpfbaren Folien und so hergestellte schrumpfbare Folien und Laminate
US5851610A (en) * 1991-02-07 1998-12-22 Applied Extrusion Technologies, Inc. Shrink films and articles including the same
US5250612A (en) * 1991-10-07 1993-10-05 The Dow Chemical Company Polyethylene films exhibiting low blocking force
US5344884A (en) * 1992-10-08 1994-09-06 Phillips Petroleum Company Polyethylene blends
US5409646A (en) * 1993-09-29 1995-04-25 Union Carbide Chemicals & Plastics Technology Corporation Method for compounding a polymerized alpha-olefin resin
US6322883B1 (en) 1994-07-15 2001-11-27 Exxonmobil Oil Corporation Uniaxially shrinkable biaxially oriented polypropylene film with HDPE skin
EP0779911A1 (en) * 1994-09-07 1997-06-25 Applied Extrusion Technologies, Inc. High shrinkage copolymer film
EP0713889A2 (en) 1994-11-23 1996-05-29 Union Carbide Chemicals & Plastics Technology Corporation In situ polyethylene blend
US5589539A (en) 1994-11-23 1996-12-31 Union Carbide Chemicals & Plastics Technology Corporation Process for preparing an in situ polyethylene blend
JP3372130B2 (ja) 1995-05-12 2003-01-27 三井化学株式会社 ゴムラッピングフィルムおよびゴムベール
EP0757076A1 (en) 1995-07-21 1997-02-05 Union Carbide Chemicals & Plastics Technology Corporation Process for the extrusion of polyethylene
US5641848A (en) * 1995-07-24 1997-06-24 Montell North America Inc. Polypropylene blown film
CA2188722A1 (en) 1995-10-26 1997-04-27 George Norris Foster Process for preparing an in situ polyethylene blend
US5736258A (en) 1995-11-07 1998-04-07 Union Carbide Chemicals & Plastics Technology Corporation Film extruded from an in situ blend of ethylene copolymers
US5925448A (en) * 1995-11-07 1999-07-20 Union Carbide Chemicals & Plastics Technology Corporation Film extruded from a blend of ethylene copolymers
CA2193758A1 (en) 1996-01-04 1997-07-05 Mark Chung-Kong Hwu High strength polyethylene film
US5728335A (en) * 1996-06-26 1998-03-17 Union Carbide Chemicals & Plastics Technology Corporation Process for extrusion
US6454976B1 (en) * 1996-06-26 2002-09-24 Union Carbide Chemicals & Plastics Technology Corporation Pelletizing of broad molecular weight polyethylene
US6485662B1 (en) * 1996-12-03 2002-11-26 Union Carbide Chemicals & Plastics Technology Corporation Process for preparing a simulated in situ polyethylene blend
US6113996A (en) * 1997-05-19 2000-09-05 Mobil Oil Corporation Composition for uniaxially heat shrinkable biaxially oriented polypropylene film
US5888640A (en) * 1997-07-09 1999-03-30 Mobil Oil Corporation Metallized uniaxially shrinkable biaxially oriented polypropylene film
US6303233B1 (en) 1998-04-06 2001-10-16 Mobil Oil Corporation Uniaxially shrinkable biaxially oriented polypropylene film
JP4181681B2 (ja) 1999-02-19 2008-11-19 日本ユニカー株式会社 難燃性エチレン系樹脂組成物及び電線・ケーブル
US6441309B1 (en) * 2000-09-26 2002-08-27 Union Carbide Chemicals & Plastics Technology Corporation Tree resistant cable
MY137183A (en) 2001-03-16 2009-01-30 Dow Global Technologies Inc Method of making interpolymers and products made therefrom
US20050012235A1 (en) * 2001-11-30 2005-01-20 Schregenberger Sandra D Oxygen tailoring of polyethylene resins
DE60315450T2 (de) 2002-06-04 2008-04-24 Union Carbide Chemicals & Plastics Technology Corp., Danbury Polymerzusammensetzungen und verfahren zum herstellen von rohren daraus
GB0217520D0 (en) * 2002-07-29 2002-09-04 Borealis Tech Oy Product
GB0217522D0 (en) * 2002-07-29 2002-09-04 Borealis Tech Oy Product
US7790826B2 (en) * 2004-05-06 2010-09-07 DowGlobal Technologies Inc. Polymer molding compositions
US8202940B2 (en) * 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US20060038315A1 (en) * 2004-08-19 2006-02-23 Tunnell Herbert R Iii Oxygen tailoring of polyethylene resins
US7892466B2 (en) 2004-08-19 2011-02-22 Univation Technologies, Llc Oxygen tailoring of polyethylene resins
US7451600B2 (en) * 2005-07-06 2008-11-18 Pratt & Whitney Canada Corp. Gas turbine engine combustor with improved cooling
CN101117036A (zh) 2006-07-31 2008-02-06 陶氏全球科技股份有限公司 层状膜组合、由其制备的包装以及使用方法
WO2008112393A1 (en) * 2007-03-09 2008-09-18 Dow Global Technologies Inc. Stress/thermal cracking resistant cable sheath material
US10780669B2 (en) 2009-11-16 2020-09-22 The Glad Products Company Films and bags with visually distinct regions and methods of making the same
US11345118B2 (en) 2009-11-16 2022-05-31 The Glad Products Company Films and bags with visually distinct regions and methods of making the same
US9108390B2 (en) 2011-11-04 2015-08-18 The Glad Products Company Incrementally-stretched thermoplastic films and bags with increased haze
MY167895A (en) 2009-11-23 2018-09-26 Dow Global Technologies Llc Compositions, films and methods of preparing the same
BRPI1107080A2 (pt) 2010-12-30 2013-04-24 Braskem Sa artigo formando por sopro e compressço
WO2012148916A1 (en) 2011-04-25 2012-11-01 The Glad Products Company Thermoplastic films with visually-distinct stretched regions and methods for making the same
PL2956505T3 (pl) 2013-02-14 2017-06-30 Dow Global Technologies Llc Kompozycja polimeru opartego na etylenie o poprawionej przetwarzalności
EP3221118B1 (en) 2014-11-19 2022-07-27 ExxonMobil Chemical Patents Inc. Polymer processing system, and related method
US20160317405A1 (en) 2015-04-30 2016-11-03 International Flavors & Fragrances Inc. Nano silver for neutralizing thermoplastic bag and shoe malodors
EP4257618A3 (en) 2015-06-15 2024-02-14 Braskem America, Inc. Long-chain branched polymers and production processes
EP3389984B1 (en) 2015-12-16 2021-12-15 ExxonMobil Chemical Patents Inc. Device and process for processing polyolefin polymers
WO2017105633A1 (en) 2015-12-16 2017-06-22 Exxonmobil Chemical Patents Inc. Device and process for processing polymers
BR112018012629B1 (pt) 2015-12-21 2022-04-19 Braskem America, Inc Processo para formar uma poliolefina ramificada de cadeia longa
CA3015614C (en) 2016-02-29 2024-01-02 Dow Global Technologies Llc Halogen-free flame retardant compositions with improved tensile properties
MX2019011918A (es) 2017-04-04 2019-11-18 Braskem America Inc Copolimero aleatorio de alto etileno con oligomeros no migratorios.
US11028193B2 (en) 2017-04-13 2021-06-08 Braskem America, Inc. Azide-modified olefin as polymeric coupling agent
CA3082023A1 (en) 2017-11-08 2019-05-16 The Glad Products Company Thermoplastic films and bags with complex stretch patterns and methods of making the same
US11091619B2 (en) 2017-12-15 2021-08-17 Braskem America, Inc. High molecular weight polymers having improved crystallization
EP3762449B1 (en) 2018-03-06 2023-07-19 Braskem America, Inc. Compositions for polyolefin foams
ES3042222T3 (en) * 2019-04-09 2025-11-19 Borealis Gmbh Collation shrink film
US20210130752A1 (en) 2019-11-05 2021-05-06 The Procter & Gamble Company Substrates having water-soluble polymer zones comprising a freshening active and consumer products comprising the same
US20210129505A1 (en) 2019-11-05 2021-05-06 The Procter & Gamble Company Thermoplastic films and bags having water-soluble polymer zones comprising a freshening active
WO2023004039A1 (en) 2021-07-22 2023-01-26 Braskem America, Inc. Polypropylene polymers for powder bed fusion based additive manufacturing
US20230142166A1 (en) 2021-11-10 2023-05-11 Braskem America, Inc. Ethylene polymer blend composition for additive-manufacture feedstock
WO2023215309A1 (en) 2022-05-03 2023-11-09 Braskem America, Inc. A process for modifying an olefin polymer composition and products thereof
US20230357516A1 (en) 2022-05-03 2023-11-09 Braskem America, Inc. Modifying polyolefins with inorganic solid particle compositions

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT619656A (enExample) * 1958-11-05
US4277594A (en) * 1979-05-23 1981-07-07 Reynolds Metals Company Heat shrinkable polyethylene film and method for its manufacture
JPS5628826A (en) * 1979-08-20 1981-03-23 Kohjin Co Ltd Thermoshrinking film and manufacturing thereof
JPS5734920A (en) * 1980-08-11 1982-02-25 Mitsubishi Petrochem Co Ltd Molding method for inflation film made of polyethylene
SE422070B (sv) * 1980-09-04 1982-02-15 Unifos Kemi Ab Streckt polyetenbaserat termoplastmaterial och forfarande for dess framstellning
SE427043B (sv) * 1981-06-02 1983-02-28 Unifos Kemi Ab Etenpolymerbaserad komposition der polyisobuten ingar samt anvendning herav
US4540538A (en) * 1981-10-08 1985-09-10 Union Carbide Corporation Anti-block compounds for extrusion of transition metal catalyzed resins
GB8333032D0 (en) * 1983-12-10 1984-01-18 Bp Chem Int Ltd Orientated polyolefins
JPS60187544A (ja) * 1984-03-07 1985-09-25 株式会社興人 熱収縮性複合包装材料
US4594213A (en) * 1984-09-25 1986-06-10 Union Carbide Corporation Reduction elimination of bubble formation when extruding granular polyolefins
DE3483427D1 (de) * 1984-12-13 1990-11-22 Showa Denko Kk Bei niedriger temperature durch erwaermung schrumpfbarer film und dessen herstellung.
JPH06116905A (ja) * 1992-10-05 1994-04-26 Kyowa Sekkei:Kk 多目的平板の構造

Also Published As

Publication number Publication date
KR930010553B1 (ko) 1993-10-28
BR8806771A (pt) 1989-08-29
EP0321964A2 (en) 1989-06-28
EP0321964B1 (en) 1992-11-19
US4814135A (en) 1989-03-21
ATE82545T1 (de) 1992-12-15
DE3876082D1 (de) 1992-12-24
KR890010056A (ko) 1989-08-05
ES2035233T3 (es) 1993-04-16
GR3007029T3 (enExample) 1993-07-30
EP0321964A3 (en) 1991-02-06
DE3876082T2 (de) 1993-05-27
CN1017788B (zh) 1992-08-12
CN1035078A (zh) 1989-08-30
JPH01259923A (ja) 1989-10-17
JPH0661813B2 (ja) 1994-08-17

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Legal Events

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