ES2035233T3 - Un procedimiento para extrusion. - Google Patents

Un procedimiento para extrusion.

Info

Publication number
ES2035233T3
ES2035233T3 ES198888121431T ES88121431T ES2035233T3 ES 2035233 T3 ES2035233 T3 ES 2035233T3 ES 198888121431 T ES198888121431 T ES 198888121431T ES 88121431 T ES88121431 T ES 88121431T ES 2035233 T3 ES2035233 T3 ES 2035233T3
Authority
ES
Spain
Prior art keywords
weight
copolymer
molecular weight
average molecular
extrusion
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
ES198888121431T
Other languages
English (en)
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 ES2035233T3 publication Critical patent/ES2035233T3/es
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)

Abstract

UN PROCEDIMIENTO PARA EXTRUSION QUE COMPRENDE EXTRUIR, EN CONDICIONES QUE PROPORCIONAN UNA PELICULA CONTRAIDA, UN COPOLIMERO DE BAJA DENSIDAD, LINEAL, DE ETILENO, Y POR LO MENOS UNA (ALFA)-OLEFINA QUE TIENE 3-6 ATOMOS DE CARBONO, TENIENDO DICHO COPOLIMERO (I) UNA DENSIDAD EN EL INTERVALO DE 0,915-0,932 G/CC APROXIMADAMENTE; (II) UN PESO MOLECULAR MEDIO DE 250000 APROXIMADAMENTE; (III) UNA RELACION DE PESO MOLECULAR MEDIO EN PESO A PESO MOLECULAR MEDIO EN NUMERO DE POR LO MENOS 6 APROXIMADAMENTE; Y (IV) UNA ESPECIE COPOLIMERA CON UN PESO MOLECULAR DE POR LO MENOS 500000 APROXIMADAMENTE EN CANTIDAD DE POR LO MENOS 8 % EN PESO APROXIAMDAMENTE EN BASE AL PESO DEL COPOLIMERO.
ES198888121431T 1987-12-22 1988-12-21 Un procedimiento para extrusion. Expired - Lifetime ES2035233T3 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2035233T3 true ES2035233T3 (es) 1993-04-16

Family

ID=22474065

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888121431T Expired - Lifetime ES2035233T3 (es) 1987-12-22 1988-12-21 Un procedimiento para extrusion.

Country Status (11)

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

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CA2003882C (en) * 1988-12-19 1997-01-07 Edwin Rogers Smith Heat shrinkable very low density polyethylene terpolymer film
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US9604429B2 (en) 2010-11-16 2017-03-28 The Glad Products Company Ribbed film structures with pigment created visual characteristics
US9393757B2 (en) 2010-11-16 2016-07-19 The Glad Products Company Discontinuously laminated film structures with improved visual characteristics
US9566760B2 (en) 2010-11-16 2017-02-14 The Glad Products Company Ribbed film structures with voiding agent created visual characteristics
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US5728335A (en) * 1996-06-26 1998-03-17 Union Carbide Chemicals & Plastics Technology Corporation Process for extrusion
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US6303233B1 (en) 1998-04-06 2001-10-16 Mobil Oil Corporation Uniaxially shrinkable biaxially oriented polypropylene film
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US6441309B1 (en) * 2000-09-26 2002-08-27 Union Carbide Chemicals & Plastics Technology Corporation Tree resistant cable
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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
US20100101822A1 (en) * 2007-03-09 2010-04-29 Bunker Shana P 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
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BRPI1107080A2 (pt) 2010-12-30 2013-04-24 Braskem Sa artigo formando por sopro e compressço
CN103648750B (zh) 2011-04-25 2016-08-24 格拉德产品公司 具有视觉上相异的拉伸区域的热塑性膜及其制造方法
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Also Published As

Publication number Publication date
DE3876082D1 (de) 1992-12-24
JPH01259923A (ja) 1989-10-17
ATE82545T1 (de) 1992-12-15
KR890010056A (ko) 1989-08-05
JPH0661813B2 (ja) 1994-08-17
BR8806771A (pt) 1989-08-29
EP0321964A3 (en) 1991-02-06
DE3876082T2 (de) 1993-05-27
CA1308858C (en) 1992-10-13
US4814135A (en) 1989-03-21
GR3007029T3 (es) 1993-07-30
CN1035078A (zh) 1989-08-30
EP0321964A2 (en) 1989-06-28
EP0321964B1 (en) 1992-11-19
CN1017788B (zh) 1992-08-12
KR930010553B1 (ko) 1993-10-28

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