JPS5670931A - Removal of volatile component from thermoplastic resin - Google Patents

Removal of volatile component from thermoplastic resin

Info

Publication number
JPS5670931A
JPS5670931A JP14872779A JP14872779A JPS5670931A JP S5670931 A JPS5670931 A JP S5670931A JP 14872779 A JP14872779 A JP 14872779A JP 14872779 A JP14872779 A JP 14872779A JP S5670931 A JPS5670931 A JP S5670931A
Authority
JP
Japan
Prior art keywords
screws
cylinder
resin
hole
same direction
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.)
Pending
Application number
JP14872779A
Other languages
Japanese (ja)
Inventor
Tomoshige Hayashi
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.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
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 Sekisui Plastics Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to JP14872779A priority Critical patent/JPS5670931A/en
Publication of JPS5670931A publication Critical patent/JPS5670931A/en
Pending 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/762—Vapour stripping
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/41—Intermeshing counter-rotating screws
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain an evenly kneaded composition with efficient removal of volatile components by vaccum dissipating them from a through hole is a cylinder kneading a resin in a solftened state as added by a given amount of water with two screws being rotated in the same direction. CONSTITUTION:Two screws 2 and 3 in a cylinder 1 of an extruder a are rotated in the same direction in such an arrangement that the grooves 4 thereof engages each other in the same direction. A thermoplastic resin in a hopper 5 is brought forward in a cylinder 1 with an aid of a spiral projection on the screws, and then water is added thereto at a rate of 0.5-3wt% from a hole 9. The cylinder is heated with a heater 7 and the resin softened is further carried forward being kneaded between the screws 2 and 3 while volatile components in the resin and dissipated with water from a through hole 6.
JP14872779A 1979-11-15 1979-11-15 Removal of volatile component from thermoplastic resin Pending JPS5670931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14872779A JPS5670931A (en) 1979-11-15 1979-11-15 Removal of volatile component from thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14872779A JPS5670931A (en) 1979-11-15 1979-11-15 Removal of volatile component from thermoplastic resin

Publications (1)

Publication Number Publication Date
JPS5670931A true JPS5670931A (en) 1981-06-13

Family

ID=15459254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14872779A Pending JPS5670931A (en) 1979-11-15 1979-11-15 Removal of volatile component from thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS5670931A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657499A (en) * 1985-05-30 1987-04-14 Shell Oil Company Screw extruder apparatus adapted for mixing additive fluids
US4992222A (en) * 1988-12-29 1991-02-12 General Electric Company Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions
US5236645A (en) * 1990-09-21 1993-08-17 Basf Corporation Addition of additives to polymeric materials
US5753169A (en) * 1995-03-27 1998-05-19 Mitsubishi Chemical Corporation Method of after-treatment of modified polyolefins
DE102022124540A1 (en) * 2022-09-23 2024-03-28 SKZ - KFE gGmbH Method and device for removing volatile contaminants from plastic waste

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657499A (en) * 1985-05-30 1987-04-14 Shell Oil Company Screw extruder apparatus adapted for mixing additive fluids
US4992222A (en) * 1988-12-29 1991-02-12 General Electric Company Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions
US5236645A (en) * 1990-09-21 1993-08-17 Basf Corporation Addition of additives to polymeric materials
US5753169A (en) * 1995-03-27 1998-05-19 Mitsubishi Chemical Corporation Method of after-treatment of modified polyolefins
DE102022124540A1 (en) * 2022-09-23 2024-03-28 SKZ - KFE gGmbH Method and device for removing volatile contaminants from plastic waste

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