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HK85784A - A method of continuous polymerization - Google Patents

A method of continuous polymerization

Info

Publication number
HK85784A
HK85784A HK857/84A HK85784A HK85784A HK 85784 A HK85784 A HK 85784A HK 857/84 A HK857/84 A HK 857/84A HK 85784 A HK85784 A HK 85784A HK 85784 A HK85784 A HK 85784A
Authority
HK
Hong Kong
Prior art keywords
paddles
polymerization
shafts
action
rotating shaft
Prior art date
Application number
HK857/84A
Inventor
Hotta Hiroshi
Nakashima Tsuneyasu
Komazawa Hiroyasu
Mori Tadashi
Ikenaga Yukio
Original Assignee
Polyplastics 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 Polyplastics Co Ltd filed Critical Polyplastics Co Ltd
Publication of HK85784A publication Critical patent/HK85784A/en

Links

Classifications

    • 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
    • B29B7/482—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 provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483—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 provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/73—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
    • B01F27/731—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs with two or more parallel shafts provided with perpendicularly mounted discs, e.g. lens shaped, one against the other on each shaft and in circumferential contact with the discs on the other shafts, e.g. for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • 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
    • B29C48/405—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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/02—Polymerisation in bulk
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/10—Polymerisation of cyclic oligomers of formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Polymerisation Methods In General (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)

Abstract

A method of continuous polymerization of a liquid polymerization medium to obtain fine particles of polymer product is disclosed, the reaction being continuously effected in a polymerization reactor wherein mixing is effected by the action of a plurality of paddles mounted on each of dual rotating shafts (3,4), characterised in that the said dual shafts rotate in reverse directions to each other, and the said paddles are enclosed by walls of the said reactor the inside surface (9) of the said walls closely defining the surface generated by the rotation of the ends of both sets of paddles; the ends of major axes of the said paddles on one rotating shaft periodically approaching the ends of minor axes of the corresponding paddles on the other rotating shaft to effect a mixing action as well as a longitudinal shearing action across a notional interface between said two shafts. The method is particularly useful for the polymerization of trioxan. <IMAGE>
HK857/84A 1980-08-22 1984-11-08 A method of continuous polymerization HK85784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115423A JPS5740520A (en) 1980-08-22 1980-08-22 Continuous polymerization

Publications (1)

Publication Number Publication Date
HK85784A true HK85784A (en) 1984-11-16

Family

ID=14662196

Family Applications (1)

Application Number Title Priority Date Filing Date
HK857/84A HK85784A (en) 1980-08-22 1984-11-08 A method of continuous polymerization

Country Status (11)

Country Link
JP (1) JPS5740520A (en)
KR (1) KR840001754B1 (en)
AU (1) AU547770B2 (en)
BE (1) BE890030A (en)
BR (1) BR8105183A (en)
CA (1) CA1184342A (en)
DE (1) DE3132453A1 (en)
FR (1) FR2488896B1 (en)
GB (1) GB2082597B (en)
HK (1) HK85784A (en)
NL (1) NL188290C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115318A (en) * 1982-12-21 1984-07-03 Ube Ind Ltd Production method of formaldehyde copolymer
JPS61238812A (en) * 1985-04-17 1986-10-24 Polyplastics Co Continuous polymerization method of trioxane
FR2647693B1 (en) * 1989-06-02 1992-03-27 Japan Storage Batterie Cy Ltd DEVICE FOR PREPARING A PASTE OF ACTIVE MATERIAL FOR A BATTERY

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813154C (en) * 1949-09-29 1951-09-06 Bayer Ag Mixing and kneading device
DE2020935A1 (en) * 1970-04-29 1971-11-18 Bayer Ag Process for the continuous production of stereospecific elastomers from 1,3-dienes
DE2321854A1 (en) * 1973-04-30 1974-11-14 Werner & Pfleiderer KNEADING AND MIXING MACHINE
DE2362791C2 (en) * 1973-12-18 1982-07-01 Hoechst Ag, 6000 Frankfurt Process for the preparation of copolymers of trioxane
JPS518489A (en) * 1974-07-10 1976-01-23 Hitachi Electronics SETSUTEICHI SEIGYOHOSHIKI
US4105637A (en) * 1974-10-11 1978-08-08 Celanese Corporation Process for producing a polyacetal polymer
DE2550969C2 (en) * 1975-11-13 1982-12-16 Josef 7120 Bietigheim Blach Screw machine for homogenizing solid, liquid and viscous materials
JPS5386794A (en) * 1976-11-29 1978-07-31 Mitsubishi Gas Chem Co Inc Continuous polymerization
US4136251A (en) * 1977-09-12 1979-01-23 E. I. Du Pont De Nemours And Company Extrusion process for recovery of polymers from their dispersions in liquids

Also Published As

Publication number Publication date
DE3132453A1 (en) 1982-06-24
CA1184342A (en) 1985-03-19
KR840001754B1 (en) 1984-10-19
JPS5740520A (en) 1982-03-06
BE890030A (en) 1981-12-16
KR830006334A (en) 1983-09-24
NL188290B (en) 1991-12-16
FR2488896B1 (en) 1985-09-13
FR2488896A1 (en) 1982-02-26
NL188290C (en) 1992-05-18
AU7437681A (en) 1982-02-25
AU547770B2 (en) 1985-11-07
NL8103900A (en) 1982-03-16
DE3132453C2 (en) 1993-01-14
GB2082597A (en) 1982-03-10
GB2082597B (en) 1983-11-02
BR8105183A (en) 1982-04-27
JPS6213969B2 (en) 1987-03-30

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Legal Events

Date Code Title Description
PE Patent expired