DE3472918D1 - Polymer extrusion die lips - Google Patents

Polymer extrusion die lips

Info

Publication number
DE3472918D1
DE3472918D1 DE8484307560T DE3472918T DE3472918D1 DE 3472918 D1 DE3472918 D1 DE 3472918D1 DE 8484307560 T DE8484307560 T DE 8484307560T DE 3472918 T DE3472918 T DE 3472918T DE 3472918 D1 DE3472918 D1 DE 3472918D1
Authority
DE
Germany
Prior art keywords
lips
polymer extrusion
extrusion
polymer
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
DE8484307560T
Other languages
English (en)
Inventor
Alistair Norman Mollison
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.)
DuPont Canada Inc
Original Assignee
DuPont Canada 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4126420&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3472918(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DuPont Canada Inc filed Critical DuPont Canada Inc
Application granted granted Critical
Publication of DE3472918D1 publication Critical patent/DE3472918D1/de
Expired 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
    • B29C48/25—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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • 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
    • B29C48/06—Rod-shaped
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE8484307560T 1983-11-01 1984-10-31 Polymer extrusion die lips Expired DE3472918D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000440180A CA1207116A (en) 1983-11-01 1983-11-01 Polymer extrusion die lips

Publications (1)

Publication Number Publication Date
DE3472918D1 true DE3472918D1 (de) 1988-09-01

Family

ID=4126420

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484307560T Expired DE3472918D1 (de) 1983-11-01 1984-10-31 Polymer extrusion die lips

Country Status (4)

Country Link
EP (1) EP0144157B1 (de)
JP (1) JPS60110421A (de)
CA (1) CA1207116A (de)
DE (1) DE3472918D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500061A1 (de) * 1985-01-03 1986-07-10 Norton Pampus GmbH, 4156 Willich Verfahren zur herstellung eines werkstoffes
JPH0617057B2 (ja) * 1987-09-29 1994-03-09 昭和電工株式会社 中空成型品の製造方法
DE4012933A1 (de) * 1990-04-24 1991-10-31 Bosch Gmbh Robert Maschinen- und werkzeugteile fuer spritzgiessen, extrudieren, strangpressen und druckguss
JP2602230Y2 (ja) * 1993-02-25 2000-01-11 秀雄 安川 ボールゲーム用ボール

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820252A (en) * 1954-10-18 1958-01-21 Polymer Corp Method of extrusion
IT588299A (de) * 1957-05-17 1900-01-01
FR1338715A (fr) * 1962-10-31 1963-09-27 I C P M Ind Chimiche Porto Mar Perfectionnements aux filières d'extrusion pour les matières thermoplastiques
US3446884A (en) * 1966-04-22 1969-05-27 Canadian Ind Extrusion process and apparatus for producing a thermoplastic pipe having a glossy surface
DE2434367A1 (de) * 1974-07-15 1976-01-29 Siemens Ag Selbstreinigendes mundstueck fuer extruder

Also Published As

Publication number Publication date
EP0144157A2 (de) 1985-06-12
CA1207116A (en) 1986-07-08
EP0144157A3 (en) 1986-05-14
EP0144157B1 (de) 1988-07-27
JPS60110421A (ja) 1985-06-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation