GB1121847A - Improvements relating to the degassing of raw material - Google Patents

Improvements relating to the degassing of raw material

Info

Publication number
GB1121847A
GB1121847A GB45563/65A GB4556365A GB1121847A GB 1121847 A GB1121847 A GB 1121847A GB 45563/65 A GB45563/65 A GB 45563/65A GB 4556365 A GB4556365 A GB 4556365A GB 1121847 A GB1121847 A GB 1121847A
Authority
GB
United Kingdom
Prior art keywords
raw material
degassing
improvements relating
extracted
evacuable
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
GB45563/65A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1121847A publication Critical patent/GB1121847A/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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

<FORM:1121847/C3/1> Particulate P.V.C. is surface dried in an evacuable first receiving container 1, transferred into a second evacuable receiving container 4 in which the material is partly degassed by heating to between 30 and 50% of its melting temperature expressed in degrees C and gaseous components of the raw material are extracted, and plasticized, e.g. by screw 7, after leaving the second container whereby further gaseous components are extracted, e.g. by pipe 10.
GB45563/65A 1964-12-05 1965-10-27 Improvements relating to the degassing of raw material Expired GB1121847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0049461 1964-12-05

Publications (1)

Publication Number Publication Date
GB1121847A true GB1121847A (en) 1968-07-31

Family

ID=7272984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45563/65A Expired GB1121847A (en) 1964-12-05 1965-10-27 Improvements relating to the degassing of raw material

Country Status (7)

Country Link
BE (1) BE673238A (en)
CH (1) CH431028A (en)
DE (1) DE1454834B2 (en)
DK (1) DK119084B (en)
GB (1) GB1121847A (en)
NL (1) NL6510285A (en)
SE (1) SE312668B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113607506A (en) * 2021-08-02 2021-11-05 界首市锦丰塑业有限公司 Production and detection integrated device for modified recycled plastic

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854689A1 (en) * 1998-11-26 2000-06-08 Buehler Ag Method and device for processing a thermoplastic polycondensate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113607506A (en) * 2021-08-02 2021-11-05 界首市锦丰塑业有限公司 Production and detection integrated device for modified recycled plastic
CN113607506B (en) * 2021-08-02 2023-07-07 界首市锦丰塑业有限公司 Modified recycled plastic production detects integrative device

Also Published As

Publication number Publication date
DE1454834B2 (en) 1970-11-26
CH431028A (en) 1967-02-28
DE1454834A1 (en) 1969-02-20
DK119084B (en) 1970-11-09
SE312668B (en) 1969-07-21
BE673238A (en) 1966-06-03
NL6510285A (en) 1966-06-06

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