SE8704657L - BEHAALLARE - Google Patents

BEHAALLARE

Info

Publication number
SE8704657L
SE8704657L SE8704657A SE8704657A SE8704657L SE 8704657 L SE8704657 L SE 8704657L SE 8704657 A SE8704657 A SE 8704657A SE 8704657 A SE8704657 A SE 8704657A SE 8704657 L SE8704657 L SE 8704657L
Authority
SE
Sweden
Prior art keywords
article
melt flow
die head
flow index
layers
Prior art date
Application number
SE8704657A
Other languages
Swedish (sv)
Other versions
SE8704657D0 (en
Inventor
H Mreijen
Original Assignee
Plm Ab
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 Plm Ab filed Critical Plm Ab
Priority to SE8704657A priority Critical patent/SE8704657L/en
Publication of SE8704657D0 publication Critical patent/SE8704657D0/en
Priority to PCT/SE1988/000642 priority patent/WO1989004754A1/en
Publication of SE8704657L publication Critical patent/SE8704657L/en

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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • 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
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A hollow multi-layer article, such as a container, is produced in an apparatus comprising a die head (10) and a number of extruders (20-23), each designated for extruding a specific material to form one or several of the layers of a multi-layer tube (40) from which the article is formed. The specific material fed to each extruder is heated to an increased temperature and is extruded through the die head to form said layers of the tube. Extruded pieces of the tube are expanded to form the article. According to the invention at least one (23) of the extruders (20-23) is fed with a plastics material having a melt flow index (MFI) different from the melt flow index of the plastics materials fed to the remaining extruders (20-22). Within the die head said material with higher melt flow index is attached to at least one of the layers formed in the die head to form at least one of the layers defining the wall of the article. By using a plastics material having a higher melt flow index for forming the inner or outer defining walls of the article an article having improved gloss is obtained.
SE8704657A 1987-11-24 1987-11-24 BEHAALLARE SE8704657L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8704657A SE8704657L (en) 1987-11-24 1987-11-24 BEHAALLARE
PCT/SE1988/000642 WO1989004754A1 (en) 1987-11-24 1988-11-24 A method for the production of a container and a multilayered thermoplastic article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704657A SE8704657L (en) 1987-11-24 1987-11-24 BEHAALLARE

Publications (2)

Publication Number Publication Date
SE8704657D0 SE8704657D0 (en) 1987-11-24
SE8704657L true SE8704657L (en) 1989-05-25

Family

ID=20370368

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704657A SE8704657L (en) 1987-11-24 1987-11-24 BEHAALLARE

Country Status (2)

Country Link
SE (1) SE8704657L (en)
WO (1) WO1989004754A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102275241A (en) * 2010-06-13 2011-12-14 无锡锡东能源科技有限公司 Strutting piece pelletizing die head
CN121043370B (en) * 2025-10-20 2026-03-20 上海京宁环保科技有限公司 A production line for flame-retardant sheets made from waste plastics and its temperature control method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246679C3 (en) * 1972-09-22 1980-11-13 Dynamit Nobel Ag, 5210 Troisdorf Device for extruding an extruded profile consisting of thermoplastics with a core profile and a cover layer
US4047868A (en) * 1975-08-12 1977-09-13 Toppan Printing Co., Ltd. Multilayer parison extrusion molding machine for blow molding
NL189238C (en) * 1976-02-18 1993-02-16 Montedison Spa METHOD FOR MANUFACTURING A LAYERED, EXTRUDED, MULTI-LAYERED ARTICLE FROM THERMOPLASTIC MATERIAL AND SO OBTAINED ARTICLE.
DE2862090D1 (en) * 1977-08-23 1982-12-23 Ici Plc Method for producing shaped articles of polyolefins containing anisotropic filler using blow moulding techniques
US4296156A (en) * 1979-12-26 1981-10-20 Union Carbide Corporation Multilayer film including a polyurethane
US4622199A (en) * 1985-06-11 1986-11-11 Owens-Illinois, Inc. Process for extruding high molecular weight, high density linear ethylene polymers to form heavy tubular members
AT383991B (en) * 1985-11-14 1987-09-10 Klepsch Senoplast METHOD FOR PRODUCING COMPOSITE PANELS

Also Published As

Publication number Publication date
WO1989004754A1 (en) 1989-06-01
SE8704657D0 (en) 1987-11-24

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