ES8100146A1 - Procedimiento para reducir la fractura en fundiso durante la extrusion de un polimero de etileno lineal de estrecha distribucion de peso molecular - Google Patents

Procedimiento para reducir la fractura en fundiso durante la extrusion de un polimero de etileno lineal de estrecha distribucion de peso molecular

Info

Publication number
ES8100146A1
ES8100146A1 ES487498A ES487498A ES8100146A1 ES 8100146 A1 ES8100146 A1 ES 8100146A1 ES 487498 A ES487498 A ES 487498A ES 487498 A ES487498 A ES 487498A ES 8100146 A1 ES8100146 A1 ES 8100146A1
Authority
ES
Spain
Prior art keywords
die
reducing
during extrusion
melt fracture
fracture during
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
Application number
ES487498A
Other languages
English (en)
Other versions
ES487498A0 (es
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26669697&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8100146(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US06/001,932 external-priority patent/US4267146A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES8100146A1 publication Critical patent/ES8100146A1/es
Publication of ES487498A0 publication Critical patent/ES487498A0/es
Granted 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
    • B29C48/03—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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B29K2995/0073—Roughness, e.g. anti-slip smooth

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)

Abstract

PROCEDIMIENTO PARA REDUCIR LA FRACTURA DURANTE LA EXTUSON DE UN POLIMERO DE ETILENO LINEAL FUNDIDO. CARACTERIZADO, PORQUE BAJO DETERMINADAS CONDICIONES DE VELOCIDAD DE FLUJO Y TEMPERATURA DE FUSION SE EXTRUSIONA EL POLIMERO A TRAVES DE UNA BOQUILLA QUE TIENE UN HUELGO DE BOQUILLA SUPERIOR A 1,27 MM. APROXIMADAMENTE Y PORQUE AL MENOS UNA PORCION DE SUPERFICIE DEL LABIO DE LA BOQUILLA Y/O CANAL DE LA BOQUILLA EN CONTACTO CON EL POLIMERO FUNDIDO, SE ENCUENTRA EN UN ANGULO DE DIVERGENCIA O CONVERGENCIA CON RESPECTO AL EJE DE FLUJO DEL POLIMERO FUNDIDO, A TRAVES DE LA BOQUILLA. USADO CON POLIMEROS DE ETILENO, LINEAL, DE ESTRECHA DISTRIBUCION DE PESO MOLECULAR.
ES487498A 1979-01-08 1980-01-07 Procedimiento para reducir la fractura en fundiso durante la extrusion de un polimero de etileno lineal de estrecha distribucion de peso molecular Granted ES487498A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/001,932 US4267146A (en) 1979-01-08 1979-01-08 Method for reducing melt fracture during extrusion of ethylene polymers
US06/099,061 US4282177A (en) 1979-01-08 1979-12-12 Method for reducing sharkskin melt fracture during extrusion of ethylene polymers

Publications (2)

Publication Number Publication Date
ES8100146A1 true ES8100146A1 (es) 1980-11-01
ES487498A0 ES487498A0 (es) 1980-11-01

Family

ID=26669697

Family Applications (1)

Application Number Title Priority Date Filing Date
ES487498A Granted ES487498A0 (es) 1979-01-08 1980-01-07 Procedimiento para reducir la fractura en fundiso durante la extrusion de un polimero de etileno lineal de estrecha distribucion de peso molecular

Country Status (18)

Country Link
US (1) US4282177A (es)
EP (1) EP0015359B1 (es)
AR (1) AR226049A1 (es)
AT (1) ATE12470T1 (es)
AU (1) AU536497B2 (es)
BR (1) BR8000062A (es)
CA (1) CA1134579A (es)
DE (1) DE3070408D1 (es)
DK (1) DK6680A (es)
EG (1) EG14717A (es)
ES (1) ES487498A0 (es)
FI (1) FI800042A7 (es)
GR (1) GR71868B (es)
IL (1) IL59056A (es)
IN (1) IN152491B (es)
NO (1) NO800020L (es)
NZ (1) NZ192541A (es)
PT (1) PT70663A (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330501A (en) 1980-06-30 1982-05-18 Union Carbide Corporation Method and apparatus for cooling film bubble of low strain hardening polymers
US4357291A (en) * 1980-08-28 1982-11-02 Union Carbide Corporation Double metering extruder screw and method of extrusion
US4348349A (en) * 1980-10-01 1982-09-07 Union Carbide Corporation Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer
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
US4543399A (en) * 1982-03-24 1985-09-24 Union Carbide Corporation Fluidized bed reaction systems
US4415711A (en) * 1982-07-02 1983-11-15 Union Carbide Corporation Process for forming film from low strain hardening polymers
US4447387A (en) * 1982-09-30 1984-05-08 Union Carbide Corporation Process for manufacture of tubular film
CA1210917A (en) * 1983-06-28 1986-09-09 Arakalgud V. Ramamurthy Process for reducing surface melt fracture during extrusion of ethylene polymers
US4552712A (en) * 1983-06-28 1985-11-12 Union Carbide Corporation Process for reducing surface melt fracture during extrusion of ethylene polymers
US4554120A (en) * 1983-06-28 1985-11-19 Union Carbide Corporation Process for eliminating surface melt fracture during extrusion of thermoplastic polymers
US4522776A (en) * 1983-06-28 1985-06-11 Union Carbide Corporation Process for substantially eliminating surface melt fracture when extruding ethylene polymers
KR850000296A (ko) * 1983-06-28 1985-02-26 에드워드 지·그라이어 에틸렌 공중합체 압출시 표면 용융파괴의 감소 방법
US4832897A (en) * 1984-02-07 1989-05-23 Stamicarbon B.V. Process for the preparation of blown film
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
US4780264A (en) * 1987-05-22 1988-10-25 The Dow Chemical Company Linear low density polyethylene cast film
HUT48518A (en) * 1987-06-03 1989-06-28 Zoltan Balajthy Process for facilitating processing of thermoplastic polymers
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
US5344714A (en) * 1992-11-04 1994-09-06 Mobil Oil Corporation LLDPE composite film free of melt fracture
US5718852A (en) * 1994-05-10 1998-02-17 The Clorox Company Process controlling a blow molding machine
US6245271B1 (en) 1998-12-18 2001-06-12 Kimberly-Clark Worldwide, Inc. Reduced die lip buildup extrusion of polymer compositions
US6358449B1 (en) 1999-11-22 2002-03-19 Kimberly-Clark Worldwide, Inc. Apparatus and method for reducing die accumulation
US7955540B2 (en) * 2007-01-19 2011-06-07 Exxonmobil Chemical Patents Inc. Extrusion of thermoplastic elastomers
US20130319131A1 (en) 2012-05-31 2013-12-05 Chevron Phillips Chemical Company Lp Controlling Melt Fracture in Bimodal Resin Pipe
WO2017138931A1 (en) * 2016-02-10 2017-08-17 The Yokohama Rubber Co., Ltd. Extrusion molding equipment and process for producing cylindrical film
EP3976339B1 (en) 2019-05-30 2024-11-13 Dow Global Technologies LLC Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the melt

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332829A (en) * 1939-10-04 1943-10-26 American Plastics Corp Process of making casein plastic products and apparatus therefor
US3030665A (en) * 1958-03-05 1962-04-24 Eagleton Sidney Douglas Refining thermoplastic resins
CH426237A (de) * 1963-11-30 1966-12-15 Basf Ag Verfahren und Vorrichtung zum kontinuierlichen Herstellen von Profilen aus thermoplastischen Kunststoffen
US3382535A (en) * 1965-04-16 1968-05-14 Western Electric Co Minimum length extrusion die
US3376605A (en) * 1966-01-27 1968-04-09 Du Pont Extrusion apparatus
GB1441586A (en) * 1972-07-12 1976-07-07 Ici Ltd Method for reducing sharkskin on extruded polymeric material
US3874837A (en) * 1972-09-18 1975-04-01 Airco Inc Die for extrusion of fine grained green carbon
US3915616A (en) * 1972-10-24 1975-10-28 Phillips Petroleum Co Diverging mandrel extension for extrusion of foamed polymer
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
US3879158A (en) * 1973-01-09 1975-04-22 Enrique Schele Apparatus for extruding thermoplastic annular shapes
US3879507A (en) * 1973-02-26 1975-04-22 Mobil Oil Corp Method of producing a foam-form flat film or sheet having a more balanced machine and traverse direction strength
US3914366A (en) * 1973-03-05 1975-10-21 Phillips Petroleum Co Method for forming a parison
US3994654A (en) * 1975-01-02 1976-11-30 Monsanto Company Die for extruding thermoplastic sheets
US4187269A (en) * 1975-11-17 1980-02-05 The Dow Chemical Company Extrusion process for reducing melt fracture
US4243619A (en) * 1978-03-31 1981-01-06 Union Carbide Corporation Process for making film from low density ethylene hydrocarbon copolymer

Also Published As

Publication number Publication date
ATE12470T1 (de) 1985-04-15
DE3070408D1 (en) 1985-05-09
AR226049A1 (es) 1982-05-31
IN152491B (es) 1984-01-28
IL59056A0 (en) 1980-03-31
CA1134579A (en) 1982-11-02
FI800042A7 (fi) 1981-01-01
AU5445180A (en) 1980-07-17
ES487498A0 (es) 1980-11-01
EP0015359B1 (en) 1985-04-03
US4282177A (en) 1981-08-04
BR8000062A (pt) 1980-10-21
PT70663A (en) 1980-02-01
EG14717A (en) 1985-03-31
GR71868B (es) 1983-07-08
EP0015359A1 (en) 1980-09-17
NZ192541A (en) 1983-11-30
IL59056A (en) 1983-06-15
NO800020L (no) 1980-07-09
AU536497B2 (en) 1984-05-10
DK6680A (da) 1980-07-09

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001009