GB1314873A - Extrusion of plastics materials - Google Patents

Extrusion of plastics materials

Info

Publication number
GB1314873A
GB1314873A GB1741770A GB1741770A GB1314873A GB 1314873 A GB1314873 A GB 1314873A GB 1741770 A GB1741770 A GB 1741770A GB 1741770 A GB1741770 A GB 1741770A GB 1314873 A GB1314873 A GB 1314873A
Authority
GB
United Kingdom
Prior art keywords
extrusion
polymethylmethacrylate
april
mixed
die head
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
GB1741770A
Other languages
English (en)
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Edison SpA
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 Montedison SpA, Montecatini Edison SpA filed Critical Montedison SpA
Publication of GB1314873A publication Critical patent/GB1314873A/en
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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB1741770A 1969-04-18 1970-04-13 Extrusion of plastics materials Expired GB1314873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1574069 1969-04-18

Publications (1)

Publication Number Publication Date
GB1314873A true GB1314873A (en) 1973-04-26

Family

ID=11148196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1741770A Expired GB1314873A (en) 1969-04-18 1970-04-13 Extrusion of plastics materials

Country Status (7)

Country Link
BE (1) BE749106A (es)
DE (2) DE7013580U (es)
ES (1) ES378738A1 (es)
FR (1) FR2043279A5 (es)
GB (1) GB1314873A (es)
NL (1) NL7005165A (es)
YU (1) YU33901B (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004228A1 (en) * 1986-12-06 1988-06-16 Prosyma Research Limited Fibre reinforced polymer compositions and process and apparatus for production thereof
WO1990008025A1 (en) * 1989-01-19 1990-07-26 Polysystem International Inc. Blown-film extrusion die
US20170008214A1 (en) * 2014-02-19 2017-01-12 Redetec Inc. Apparatus for extruding plastic materials

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173446A (en) * 1977-07-21 1979-11-06 Phillips Petroleum Company Choke ring for pipe extrusion die
JPH0637725B2 (ja) * 1985-01-19 1994-05-18 工業技術院長 炭素繊維の製法
DE3827772A1 (de) * 1988-08-16 1990-02-22 Thomas Paul Engel Vorrichtung und verfahren zur formgebung von halbzeug aus hochmolekularen kunststoffen
JP3016231U (ja) * 1994-05-31 1995-09-26 モートン インターナショナル，インコーポレイティド ガス発生剤粒子の押出成形機のダイインサート及びダイ装置
AT5617U1 (de) 2001-09-17 2002-09-25 Technoplast Kunststofftechnik Adapter für einen extruder
CA2443483C (en) 2002-10-02 2011-08-16 Mold-Masters Limited Mixing device
US7320589B2 (en) 2003-02-26 2008-01-22 Mold-Masters (2007) Limited Hot runner manifold plug for rheological balance in hot runner injection molding
US7614872B2 (en) 2005-10-04 2009-11-10 Mold-Masters (2007) Limited Melt redistribution element for an injection molding apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004228A1 (en) * 1986-12-06 1988-06-16 Prosyma Research Limited Fibre reinforced polymer compositions and process and apparatus for production thereof
WO1990008025A1 (en) * 1989-01-19 1990-07-26 Polysystem International Inc. Blown-film extrusion die
US20170008214A1 (en) * 2014-02-19 2017-01-12 Redetec Inc. Apparatus for extruding plastic materials
US10744697B2 (en) 2014-02-19 2020-08-18 Redetec Inc. Apparatus for extruding plastic materials

Also Published As

Publication number Publication date
YU33901B (en) 1978-06-30
DE2017710A1 (de) 1970-10-22
FR2043279A5 (es) 1971-02-12
YU100270A (en) 1977-12-31
DE7013580U (de) 1970-07-16
ES378738A1 (es) 1973-02-01
NL7005165A (es) 1970-10-20
BE749106A (fr) 1970-10-19

Similar Documents

Publication Publication Date Title
GB1314873A (en) Extrusion of plastics materials
ES416009A1 (es) Metodo y aparato para extruir una cubierta de plastico al- rededor de un nucleo filiforme.
ES445205A1 (es) Perfeccionamientos en los aparatos para extruir material po-limerico.
GB634071A (en) Improvements in or relating to moulding plastic materials by extrusion
GB1059595A (en) Improvements in or relating to worm extruders
GB1422731A (en) Screw extruder for synthetic plastics material
ES369008A1 (es) Una prensa de extrusion de tornillo.
EP0186861A3 (en) Method of and apparatus for extruding thermoplastic resin
GB1257042A (es)
GB1385235A (en) Advancing and working of plastics materials
GB1139394A (en) Improvements relating to corrugated plastics pipe
GB1347417A (en) Screw extruder
GB1184474A (en) Improvements in or relating to Extruders
DE3380623D1 (en) Screw extruder for plastic material
GB1152306A (en) Process and apparatus for Manufacturing Foamed Articles of Thermoplastic Materials
GB1012766A (en) Screw extruder for extruding plastic materials
GB1178266A (en) Improvements in or relating to Extruders.
IT946753B (it) Estrusore a coclea particolarmente per impastare ed estrudere materia li plastici
GB994567A (en) Double-wall tube and die for extruding the same
GB1272601A (en) Manufacture of collapsible tubes
GB937730A (en) Improvements in or relating to extrusion apparatus
GB1298672A (en) Improved mixing device
US2911676A (en) Apparatus for extruding plastic material
GB1146783A (en) A double worm extrusion press
GB1189484A (en) Process and Apparatus for Mixing and Homogenising Viscous Liquids

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees