CH523291A - Verwendung von Schneckenpressen der Bauart Mapré bei der Herstellung von Celluloseäthern - Google Patents

Verwendung von Schneckenpressen der Bauart Mapré bei der Herstellung von Celluloseäthern

Info

Publication number
CH523291A
CH523291A CH645066A CH645066A CH523291A CH 523291 A CH523291 A CH 523291A CH 645066 A CH645066 A CH 645066A CH 645066 A CH645066 A CH 645066A CH 523291 A CH523291 A CH 523291A
Authority
CH
Switzerland
Prior art keywords
mapré
production
type
cellulose ethers
screw presses
Prior art date
Application number
CH645066A
Other languages
German (de)
English (en)
Inventor
Franz Dr Eichenseer
Hans Dipl Ing Kletschke
Original Assignee
Kalle Ag
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 Kalle Ag filed Critical Kalle Ag
Priority to CH58571A priority Critical patent/CH523290A/de
Publication of CH523291A publication Critical patent/CH523291A/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose
    • C08B1/10—Apparatus for the preparation of alkali cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
    • 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
    • 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
    • B29C48/25—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
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/682—Barrels or cylinders for twin screws
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B17/00—Apparatus for esterification or etherification of cellulose
    • C08B17/06—Apparatus for esterification or etherification of cellulose for making cellulose ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
CH645066A 1965-05-06 1966-05-04 Verwendung von Schneckenpressen der Bauart Mapré bei der Herstellung von Celluloseäthern CH523291A (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH58571A CH523290A (de) 1965-05-06 1966-05-04 Verwendung von Schneckenpressen der Bauart Mapré bei der Herstellung von Alkalicellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965K0056022 DE1543114B2 (de) 1965-05-06 1965-05-06 Verwendung zweiwelliger schneckenpressen bei der herstellung von alkalicellulose und celluloseaethern

Publications (1)

Publication Number Publication Date
CH523291A true CH523291A (de) 1972-05-31

Family

ID=7227674

Family Applications (1)

Application Number Title Priority Date Filing Date
CH645066A CH523291A (de) 1965-05-06 1966-05-04 Verwendung von Schneckenpressen der Bauart Mapré bei der Herstellung von Celluloseäthern

Country Status (8)

Country Link
US (1) US3615254A (forum.php)
BE (1) BE680597A (forum.php)
CH (1) CH523291A (forum.php)
DE (1) DE1543114B2 (forum.php)
GB (1) GB1111203A (forum.php)
LU (1) LU51032A1 (forum.php)
NL (1) NL154149B (forum.php)
SE (1) SE324953B (forum.php)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015067A (en) * 1975-08-18 1977-03-29 The Dow Chemical Company Method of preparing polysaccharide ethers and apparatus
US4373098A (en) * 1981-08-20 1983-02-08 E. I. Du Pont De Nemours And Company Process for converting cellulose directly into alkali cellulose
FI75836C (fi) * 1987-01-27 1988-08-08 Metsae Serla Oy Nytt foerfarande foer framstaellning av natriumkarboximetylcellulosa.
IT1283030B1 (it) * 1996-05-17 1998-04-03 Pomini Spa Procedimento per la mescolazione in continuo di materiali polimerici e relativa macchina a rotori parzialmente tangenziali e compenetranti.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115006A (en) * 1935-11-30 1938-04-26 Burghauser Franz Kneading pump
US2434707A (en) * 1943-10-09 1948-01-20 Bakelite Corp Continuous milling process and apparatus

Also Published As

Publication number Publication date
LU51032A1 (forum.php) 1968-02-12
NL6606211A (forum.php) 1966-11-07
US3615254A (en) 1971-10-26
BE680597A (forum.php) 1966-11-07
DE1543114A1 (de) 1969-07-31
NL154149B (nl) 1977-08-15
SE324953B (forum.php) 1970-06-15
DE1543114B2 (de) 1977-04-28
GB1111203A (en) 1968-04-24

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Legal Events

Date Code Title Description
PL Patent ceased