FI812967L - Foerfarande foer att minska smaeltbristning vid extrudering av smulten lineaer eten-copolymer med begraensad molekylviktsfoerdelning - Google Patents

Foerfarande foer att minska smaeltbristning vid extrudering av smulten lineaer eten-copolymer med begraensad molekylviktsfoerdelning

Info

Publication number
FI812967L
FI812967L FI812967A FI812967A FI812967L FI 812967 L FI812967 L FI 812967L FI 812967 A FI812967 A FI 812967A FI 812967 A FI812967 A FI 812967A FI 812967 L FI812967 L FI 812967L
Authority
FI
Finland
Prior art keywords
smulten
smaeltbristning
molekylviktsfoerdelning
lineaer
extrudering
Prior art date
Application number
FI812967A
Other languages
English (en)
Inventor
Stuart Jacob Kurtz
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
Publication of FI812967L publication Critical patent/FI812967L/fi

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/305Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/06PE, i.e. polyethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037Other properties
    • B29K2995/0063Density
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037Other properties
    • B29K2995/0072Roughness, e.g. anti-slip
    • B29K2995/0073Roughness, e.g. anti-slip smooth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00Polyalkenes
    • B32B2323/04Polyethylene
    • B32B2323/043HDPE, i.e. high density polyethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00Polyalkenes
    • B32B2323/04Polyethylene
    • B32B2323/046LDPE, i.e. low density polyethylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Fuses (AREA)
  • Adhesives Or Adhesive Processes (AREA)
FI812967A 1980-10-01 1981-09-23 Foerfarande foer att minska smaeltbristning vid extrudering av smulten lineaer eten-copolymer med begraensad molekylviktsfoerdelning FI812967L (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/192,701 US4348349A (en) 1980-10-01 1980-10-01 Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer

Publications (1)

Publication Number Publication Date
FI812967L true FI812967L (fi) 1982-04-02

Family

ID=22710717

Family Applications (1)

Application Number Title Priority Date Filing Date
FI812967A FI812967L (fi) 1980-10-01 1981-09-23 Foerfarande foer att minska smaeltbristning vid extrudering av smulten lineaer eten-copolymer med begraensad molekylviktsfoerdelning

Country Status (16)

Country Link
US (1) US4348349A (fi)
EP (1) EP0051358B1 (fi)
JP (1) JPS5787924A (fi)
KR (1) KR830007271A (fi)
AR (1) AR227795A1 (fi)
AU (1) AU540511B2 (fi)
BR (1) BR8106257A (fi)
CA (1) CA1168411A (fi)
CS (1) CS697681A2 (fi)
DE (1) DE3165082D1 (fi)
DK (1) DK433481A (fi)
ES (1) ES505913A0 (fi)
FI (1) FI812967L (fi)
IN (1) IN155675B (fi)
NO (1) NO813310L (fi)
ZA (1) ZA816335B (fi)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360494A (en) * 1981-04-01 1982-11-23 Union Carbide Corporation Process for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer
US4532189A (en) * 1982-02-19 1985-07-30 W. R. Grace & Co., Cryovac Div. Linear polyethylene shrink films
US4415711A (en) * 1982-07-02 1983-11-15 Union Carbide Corporation Process for forming film from low strain hardening polymers
US4525257A (en) * 1982-12-27 1985-06-25 Union Carbide Corporation Low level irradiated linear low density ethylene/alpha-olefin copolymers and film extruded therefrom
US4522776A (en) * 1983-06-28 1985-06-11 Union Carbide Corporation Process for substantially eliminating surface melt fracture when extruding ethylene polymers
US4554120A (en) * 1983-06-28 1985-11-19 Union Carbide Corporation Process for eliminating surface melt fracture during extrusion of thermoplastic polymers
US4552712A (en) * 1983-06-28 1985-11-12 Union Carbide Corporation Process for reducing surface melt fracture during extrusion of ethylene polymers
CA1210917A (en) * 1983-06-28 1986-09-09 Arakalgud V. Ramamurthy Process for reducing surface melt fracture during extrusion of ethylene polymers
KR850000296A (ko) * 1983-06-28 1985-02-26 에드워드 지·그라이어 에틸렌 공중합체 압출시 표면 용융파괴의 감소 방법
US4617207A (en) * 1983-08-15 1986-10-14 Mitsui Toatsu Chemicals, Incorporated Thermoplastic resin sheet
US4617241A (en) * 1984-01-23 1986-10-14 W. R. Grace & Co., Cryovac Div. Linear polyethylene stretch/shrink films
NL8400375A (nl) * 1984-02-07 1985-09-02 Stamicarbon Werkwijze voor het vervaardigen van blaasfolie.
NL8400374A (nl) * 1984-02-07 1985-09-02 Stamicarbon Werkwijze voor het vervaardigen van blaasfolie.
US4832897A (en) * 1984-02-07 1989-05-23 Stamicarbon B.V. Process for the preparation of blown film
US4551380A (en) * 1984-05-10 1985-11-05 W. R. Grace & Co., Cryovac Div. Oriented heat-sealable multilayer packaging film
US4514465A (en) * 1984-05-30 1985-04-30 W. R. Grace & Co., Cryovac Div. Storm window film comprising at least five layers
NL8502191A (nl) * 1985-08-06 1987-03-02 Stamicarbon Werkwijze voor het vervaardigen van vlakfolie.
NL8502190A (nl) * 1985-08-06 1987-03-02 Stamicarbon Werkwijze voor het vervaardigen van blaasfolie en georienteerde folie.
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
US4753767A (en) * 1986-04-03 1988-06-28 The Dow Chemical Company Extrusion apparatus and method
US4720252A (en) * 1986-09-09 1988-01-19 Kimberly-Clark Corporation Slotted melt-blown die head
US4791965A (en) * 1987-02-13 1988-12-20 James Hardie Irrigation, Inc. Co-extruded tube
US4780264A (en) * 1987-05-22 1988-10-25 The Dow Chemical Company Linear low density polyethylene cast film
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
JPH0386514A (ja) * 1989-08-30 1991-04-11 Idemitsu Petrochem Co Ltd 易裂性フィルム及びその製造方法
JPH0386515A (ja) * 1989-08-30 1991-04-11 Idemitsu Petrochem Co Ltd 易裂性フィルム及びその製造方法
US5210142A (en) * 1992-02-13 1993-05-11 The Dow Chemical Company Reduction of melt fracture in linear polyethylene
EP0962807B1 (en) 1993-12-21 2008-12-03 Minnesota Mining And Manufacturing Company Multilayered optical film
US6808658B2 (en) * 1998-01-13 2004-10-26 3M Innovative Properties Company Method for making texture multilayer optical films
DE102007029310A1 (de) 2007-02-13 2008-08-14 Kiefel Extrusion Gmbh Wendelverteiler für eine Blasfolienanlage
CN103384589B (zh) 2010-12-30 2016-02-10 陶氏环球技术有限责任公司 具有冷却的模头成型段的模头组件
US20130319131A1 (en) 2012-05-31 2013-12-05 Chevron Phillips Chemical Company Lp Controlling Melt Fracture in Bimodal Resin Pipe
EP3976339A1 (en) 2019-05-30 2022-04-06 Dow Global Technologies LLC Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the melt

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US3023461A (en) * 1958-11-07 1962-03-06 Owens Illinois Glass Co Method for extruding plastic materials
US3382535A (en) * 1965-04-16 1968-05-14 Western Electric Co Minimum length extrusion die
US3574808A (en) * 1968-10-16 1971-04-13 Phillips Petroleum Co Method of forming patterned articles employing differential pressure
GB1441586A (en) * 1972-07-12 1976-07-07 Ici Ltd Method for reducing sharkskin on extruded polymeric material
US3784661A (en) * 1972-08-30 1974-01-08 Celanese Corp Process of blow molding containers from particle form polyethylene resins
US3876740A (en) * 1972-10-27 1975-04-08 Standard Oil Co Process for improving interior surface smoothness and gloss in foamed tubular extrudates by the use of extrusion die faces of novel geometry
US4203942A (en) * 1973-01-08 1980-05-20 Exxon Research & Engineering Co. Process for tubular water-bath polypropylene films
US3879158A (en) * 1973-01-09 1975-04-22 Enrique Schele Apparatus for extruding thermoplastic annular shapes
US3994654A (en) * 1975-01-02 1976-11-30 Monsanto Company Die for extruding thermoplastic sheets
DE2522357C3 (de) * 1975-05-21 1980-04-24 Hoechst Ag, 6000 Frankfurt Blasextruder
US4187269A (en) * 1975-11-17 1980-02-05 The Dow Chemical Company Extrusion process for reducing melt fracture
US4093692A (en) * 1977-03-21 1978-06-06 Gulf Oil Corporation Melt extrusion process
US4243619A (en) * 1978-03-31 1981-01-06 Union Carbide Corporation Process for making film from low density ethylene hydrocarbon copolymer
US4282177A (en) * 1979-01-08 1981-08-04 Union Carbide Corporation Method for reducing sharkskin melt fracture during extrusion of ethylene polymers
US4267146A (en) * 1979-01-08 1981-05-12 Union Carbide Corporation Method for reducing melt fracture during extrusion of ethylene polymers

Also Published As

Publication number Publication date
CS697681A2 (en) 1985-08-15
NO813310L (no) 1982-04-02
DE3165082D1 (en) 1984-08-30
EP0051358B1 (en) 1984-07-25
AU540511B2 (en) 1984-11-22
AU7565881A (en) 1982-04-08
JPS5787924A (en) 1982-06-01
ZA816335B (en) 1982-09-29
IN155675B (fi) 1985-02-23
ES8205634A1 (es) 1982-07-01
KR830007271A (ko) 1983-10-19
AR227795A1 (es) 1982-12-15
EP0051358A1 (en) 1982-05-12
DK433481A (da) 1982-04-02
CA1168411A (en) 1984-06-05
ES505913A0 (es) 1982-07-01
BR8106257A (pt) 1982-06-15
US4348349A (en) 1982-09-07

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Owner name: UNION CARBIDE CORPORATION