GB1453779A - Process for preparing copolymers of trioxane - Google Patents

Process for preparing copolymers of trioxane

Info

Publication number
GB1453779A
GB1453779A GB5406274A GB5406274A GB1453779A GB 1453779 A GB1453779 A GB 1453779A GB 5406274 A GB5406274 A GB 5406274A GB 5406274 A GB5406274 A GB 5406274A GB 1453779 A GB1453779 A GB 1453779A
Authority
GB
United Kingdom
Prior art keywords
dec
trioxane
polymerisation
heated
product
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
GB5406274A
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of GB1453779A publication Critical patent/GB1453779A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/24—Copolymerisation of aldehydes or ketones with acetals
    • 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
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0013—Controlling the temperature of the process
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00162—Controlling or regulating processes controlling the pressure
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00168—Controlling or regulating processes controlling the viscosity
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00184—Controlling or regulating processes controlling the weight of reactants in the reactor vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

1453779 Polymerisation apparatus HOECHST AG 13 Dec 1974 [14 Dec 1973] 54062/ 74 Addition to 1444789 Heading B1X [Also in Division C3] An apparatus for the bulk polymerisation of trioxan comprises (a) spray nozzles for feeding a molten mixture of monomer and catalyst to (b) a rotating roller 3 cooled by coolant liquid 2 to produce a solid product which is removed by scraper 4 to fall into (c) a heated screw conveyor 5 in which the mixture polymerizes in the solid state. The apparatus is housed in a heated casing 6. The product from 5 may be led to a double-screw extruder for completing the polymerization.
GB5406274A 1973-12-14 1974-12-13 Process for preparing copolymers of trioxane Expired GB1453779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2362172A DE2362172C3 (en) 1973-12-14 1973-12-14 Process for the preparation of copolymers of trioxane

Publications (1)

Publication Number Publication Date
GB1453779A true GB1453779A (en) 1976-10-27

Family

ID=5900743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5406274A Expired GB1453779A (en) 1973-12-14 1974-12-13 Process for preparing copolymers of trioxane

Country Status (13)

Country Link
JP (1) JPS5848564B2 (en)
AT (1) AT335734B (en)
BE (1) BE823402R (en)
BR (1) BR7410463D0 (en)
CA (1) CA1028443A (en)
CH (1) CH606163A5 (en)
DE (1) DE2362172C3 (en)
FR (1) FR2254591B2 (en)
GB (1) GB1453779A (en)
IT (1) IT1046173B (en)
NL (1) NL7415994A (en)
SE (1) SE7415191L (en)
ZA (1) ZA747946B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7132531B1 (en) 1999-04-28 2006-11-07 Avecia Limited Reactor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567302A (en) * 1984-07-20 1986-01-28 Angus Chemical Polymeric quaternary ammonium salts possessing antimicrobial activity and methods for preparation and use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7132531B1 (en) 1999-04-28 2006-11-07 Avecia Limited Reactor

Also Published As

Publication number Publication date
ZA747946B (en) 1976-01-28
SE7415191L (en) 1975-06-16
DE2362172B2 (en) 1980-03-27
JPS5848564B2 (en) 1983-10-29
JPS5092389A (en) 1975-07-23
IT1046173B (en) 1980-06-30
NL7415994A (en) 1975-06-17
ATA995974A (en) 1976-07-15
BR7410463D0 (en) 1975-09-16
FR2254591A2 (en) 1975-07-11
FR2254591B2 (en) 1979-08-10
DE2362172A1 (en) 1975-06-26
BE823402R (en) 1975-06-16
CA1028443A (en) 1978-03-21
CH606163A5 (en) 1978-10-31
AU7635074A (en) 1976-06-17
AT335734B (en) 1977-03-25
DE2362172C3 (en) 1980-12-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee