DE69412464T2 - Verfahren zum bearbeiten von polyolefinen bei hohen schergeschwindigkeiten - Google Patents

Verfahren zum bearbeiten von polyolefinen bei hohen schergeschwindigkeiten

Info

Publication number
DE69412464T2
DE69412464T2 DE69412464T DE69412464T DE69412464T2 DE 69412464 T2 DE69412464 T2 DE 69412464T2 DE 69412464 T DE69412464 T DE 69412464T DE 69412464 T DE69412464 T DE 69412464T DE 69412464 T2 DE69412464 T2 DE 69412464T2
Authority
DE
Germany
Prior art keywords
polyolefins
machining
high shear
shear speeds
speeds
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 - Fee Related
Application number
DE69412464T
Other languages
English (en)
Other versions
DE69412464D1 (de
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
Publication of DE69412464D1 publication Critical patent/DE69412464D1/de
Application granted granted Critical
Publication of DE69412464T2 publication Critical patent/DE69412464T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE69412464T 1993-02-17 1994-02-17 Verfahren zum bearbeiten von polyolefinen bei hohen schergeschwindigkeiten Expired - Fee Related DE69412464T2 (de)

Applications Claiming Priority (2)

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
PCT/US1994/001610 WO1994019168A1 (en) 1993-02-17 1994-02-17 Method for processing polyolefins at high shear rates

Publications (2)

Publication Number Publication Date
DE69412464D1 DE69412464D1 (de) 1998-09-17
DE69412464T2 true DE69412464T2 (de) 1999-04-29

Family

ID=21788807

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69412464T Expired - Fee Related DE69412464T2 (de) 1993-02-17 1994-02-17 Verfahren zum bearbeiten von polyolefinen bei hohen schergeschwindigkeiten

Country Status (7)

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

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
US5919423A (en) * 1997-08-20 1999-07-06 S. C. Johnson & Son, Inc. Polymeric wick composition for air freshener candle product
US5955034A (en) * 1997-08-20 1999-09-21 S. C. Johnson & Son, Inc. Air freshener taper candle product
US6036925A (en) * 1997-12-17 2000-03-14 S. C. Johnson & Son, Inc. Air freshener taper candle product
US6013231A (en) * 1997-12-17 2000-01-11 S. C. Johnson & Son, Inc. Wick composition for air freshener candle product
JP2003071901A (ja) * 2001-09-05 2003-03-12 Sumitomo Wiring Syst Ltd 電線保護材の製造方法
EP1992680A3 (de) 2001-09-06 2008-11-26 The Procter and Gamble Company Duftkerzen
WO2013148136A1 (en) 2012-03-30 2013-10-03 Sancilio & Company, Inc. Omega-3 fatty acid ester compositions
US20130325363A1 (en) * 2012-05-31 2013-12-05 Chevron Phillips Chemical Company Lp Controlling Melt Fracture in Bimodal Resin Pipe
CN107848048B (zh) * 2015-06-05 2020-11-13 卓德嘉表层保护有限责任公司 低微凝胶的表面保护膜
EP3810387A1 (de) * 2018-06-05 2021-04-28 Braskem S.A. Recyclingverfahren für laminate und mehrfachschichten
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
JPH08506779A (ja) 1996-07-23
US5320798A (en) 1994-06-14
CA2156292A1 (en) 1994-09-01
DE69412464D1 (de) 1998-09-17
ES2121195T3 (es) 1998-11-16
EP0684900A1 (de) 1995-12-06
EP0684900B1 (de) 1998-08-12
WO1994019168A1 (en) 1994-09-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee