ES2121195T3 - Metodo para el tratamiento de poliolefinas con alto esfuerzo cortante. - Google Patents

Metodo para el tratamiento de poliolefinas con alto esfuerzo cortante.

Info

Publication number
ES2121195T3
ES2121195T3 ES94909626T ES94909626T ES2121195T3 ES 2121195 T3 ES2121195 T3 ES 2121195T3 ES 94909626 T ES94909626 T ES 94909626T ES 94909626 T ES94909626 T ES 94909626T ES 2121195 T3 ES2121195 T3 ES 2121195T3
Authority
ES
Spain
Prior art keywords
treatment
polyolefins
high cutting
cutting effort
less
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
ES94909626T
Other languages
English (en)
Inventor
Francois Chambon
Jean-Marc Dekononck
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.)
ExxonMobil Chemical Patents Inc
Original Assignee
Exxon Chemical Patents Inc
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 Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Application granted granted Critical
Publication of ES2121195T3 publication Critical patent/ES2121195T3/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; 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
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/03—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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0625—LLDPE, i.e. linear low density polyethylene
    • 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
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/943—Polymerization with metallocene catalysts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

CON UN TRATAMIENTO, EN PARTICULAR UNO QUE CONSISTE EN EXTRUIR POLIOLEFINAS QUE TENGAN UN BAJO MI Y UN ESTRECHO MWD A TEMPERATURAS DE EXTRUSION INFERIORES A 200 (GRADOS) C Y A UNAS VELOCIDADES DE ESFUERZO CORTANTE INFERIORES A 2000 SEG{SUP,-1} PERO SUPERIORES QUE LAS DE LA REGION NO RESBALADIZA DE LA POLIOLEFINA, SE CONSIGUEN NUEVAS CONDICIONES DE ELABORACION PARA LA PRODUCCION DE POLIMEROS LISOS SIN SUPERFICIES CON FRACTURAS DE FUSION A MODO DE ZAPAS NI ONDULACIONES.
ES94909626T 1993-02-17 1994-02-17 Metodo para el tratamiento de poliolefinas con alto esfuerzo cortante. Expired - Lifetime ES2121195T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/018,605 US5320798A (en) 1993-02-17 1993-02-17 Method for processing polyolefins at high shear rates

Publications (1)

Publication Number Publication Date
ES2121195T3 true ES2121195T3 (es) 1998-11-16

Family

ID=21788807

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94909626T Expired - Lifetime ES2121195T3 (es) 1993-02-17 1994-02-17 Metodo para el tratamiento de poliolefinas con alto esfuerzo cortante.

Country Status (7)

Country Link
US (1) US5320798A (es)
EP (1) EP0684900B1 (es)
JP (1) JPH08506779A (es)
CA (1) CA2156292A1 (es)
DE (1) DE69412464T2 (es)
ES (1) ES2121195T3 (es)
WO (1) WO1994019168A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562958A (en) * 1991-10-15 1996-10-08 The Dow Chemical Company Packaging and wrapping film
US6682825B1 (en) * 1994-06-06 2004-01-27 Cryovac, Inc. Films having enhanced sealing characteristics and packages containing same
US5575965A (en) * 1995-05-19 1996-11-19 Union Carbide Chemicals & Plastics Technology Corporation Process for extrusion
US5709921A (en) * 1995-11-13 1998-01-20 Kimberly-Clark Worldwide, Inc. Controlled hysteresis nonwoven laminates
US5688457A (en) * 1996-04-10 1997-11-18 E. I. Du Pont De Nemours And Company High speed extrusion
US5955034A (en) * 1997-08-20 1999-09-21 S. C. Johnson & Son, Inc. Air freshener taper candle product
US5919423A (en) * 1997-08-20 1999-07-06 S. C. Johnson & Son, Inc. Polymeric wick composition for air freshener candle product
US6013231A (en) * 1997-12-17 2000-01-11 S. C. Johnson & Son, Inc. Wick composition for air freshener candle product
US6036925A (en) * 1997-12-17 2000-03-14 S. C. Johnson & Son, Inc. Air freshener taper candle product
JP2003071901A (ja) * 2001-09-05 2003-03-12 Sumitomo Wiring Syst Ltd 電線保護材の製造方法
EP1463792B1 (en) 2001-09-06 2008-12-03 The Procter & Gamble Company Scented candles
CN104321053A (zh) 2012-03-30 2015-01-28 桑茨利奥&孔帕尼股份有限公司 ω-3脂肪酸酯组合物
US20130319131A1 (en) * 2012-05-31 2013-12-05 Chevron Phillips Chemical Company Lp Controlling Melt Fracture in Bimodal Resin Pipe
BR112017026115A8 (pt) * 2015-06-05 2022-12-27 Tredegar Film Prod Corp Película de proteção de superfície baixa de microgel
US11787088B2 (en) * 2018-06-05 2023-10-17 Braskem S.A. Recycling processes for laminates and multi-layers
CN113784829A (zh) * 2019-05-30 2021-12-10 陶氏环球技术有限责任公司 挤出熔体中无表面破裂的线性低密度聚乙烯（lldpe）的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991508A (en) * 1959-09-23 1961-07-11 Du Pont Fabrication of thermoplastic resins
GB884878A (en) * 1959-09-23 1961-12-20 E I Du Pont De Numours And Com Method of extruding thermoplastic resins
US3382535A (en) * 1965-04-16 1968-05-14 Western Electric Co Minimum length extrusion die
GB1441586A (en) * 1972-07-12 1976-07-07 Ici Ltd Method for reducing sharkskin on extruded polymeric material
US4623502A (en) * 1985-03-15 1986-11-18 The Dow Chemical Company Method and apparatus for the extrusion of synthetic resinous thermoplastics
US4713205A (en) * 1985-09-25 1987-12-15 Mobil Oil Corporation Method for reducing melt fracture during extrusion of linear polyethylene homopolymers and copolymers by varying the geometry of the die exit face
US4859398A (en) * 1987-07-02 1989-08-22 Mobil Oil Corporation High shear extrusion of linear low density polyethylene
US4948543A (en) * 1989-06-15 1990-08-14 Union Carbide Chemicals And Plastics Company, Inc. Process for eliminating surface melt fracture during extrusion of thermoplastic polymers

Also Published As

Publication number Publication date
CA2156292A1 (en) 1994-09-01
DE69412464T2 (de) 1999-04-29
JPH08506779A (ja) 1996-07-23
DE69412464D1 (de) 1998-09-17
EP0684900B1 (en) 1998-08-12
WO1994019168A1 (en) 1994-09-01
EP0684900A1 (en) 1995-12-06
US5320798A (en) 1994-06-14

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