BE676159A - - Google Patents

Info

Publication number
BE676159A
BE676159A BE676159DA BE676159A BE 676159 A BE676159 A BE 676159A BE 676159D A BE676159D A BE 676159DA BE 676159 A BE676159 A BE 676159A
Authority
BE
Belgium
Prior art keywords
sep
trioxane
polymerization
pressure
polymer
Prior art date
Application number
Other languages
English (en)
French (fr)
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
Priority claimed from GB16660/64A external-priority patent/GB1030397A/en
Priority claimed from FR13002A external-priority patent/FR1440042A/fr
Priority claimed from NL6505107A external-priority patent/NL6505107A/xx
Application filed filed Critical
Publication of BE676159A publication Critical patent/BE676159A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06Catalysts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04Pressure vessels, e.g. autoclaves
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/10Polymerisation of cyclic oligomers of formaldehyde
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/14Polymerisation of single aldehydes not provided for in groups C08G2/08 - C08G2/12
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/18Copolymerisation of aldehydes or ketones
    • C08G2/26Copolymerisation of aldehydes or ketones with compounds containing carbon-to-carbon unsaturation

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)
BE676159D 1964-04-22 1966-02-07 BE676159A (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB16660/64A GB1030397A (en) 1964-04-22 1964-04-22 Polyoxymethylene-type resins and process for their production
FR13002A FR1440042A (fr) 1964-04-22 1965-04-13 Nouveau procédé de préparation de résine du type polyoxyméthylénique et produits ainsi obtenus
NL6505107A NL6505107A (enrdf_load_stackoverflow) 1965-04-22 1965-04-22

Publications (1)

Publication Number Publication Date
BE676159A true BE676159A (enrdf_load_stackoverflow) 1966-08-08

Family

ID=27242076

Family Applications (1)

Application Number Title Priority Date Filing Date
BE676159D BE676159A (enrdf_load_stackoverflow) 1964-04-22 1966-02-07

Country Status (1)

Country Link
BE (1) BE676159A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
EP1051436B1 (fr) Nouveaux copolymeres tensioactifs a base de methylidene malonate
FR2611207A1 (fr) Procede de purification des copolymeres du styrene avec les vinylpyridines par extraction au moyen d'un gaz supercritique
FR2507607A1 (fr) Procede de traitement du polypropylene et pastilles de polypropylene obtenues selon ce procede
FR2496671A1 (fr) Procede de polymerisation de melanges de monomeres de bis (carbonate d'allyle) avec des polymeres et melanges polymeres comprenant des bis (carbonate d'allyle)
FR2573431A1 (fr) Procede de production d'un polymere
EP0215082B1 (fr) Procede pour la preparation de solutions d'un materiau ligno-cellulosique et solutions obtenues
US3009893A (en) Extrudable polypyrrolidone compositions and process of extruding same
BE676159A (enrdf_load_stackoverflow)
EP0823917B1 (fr) Procede de purification d'alcool polyvinylique
CA1124447A (fr) Procede pour la separation des polyolefines fabriquees a basse pression
EP3504249B1 (fr) Composition à base de peroxyde de dialkyle pour la modification de la rhéologie à l'état fondu du polypropylène
EP0554142B1 (fr) Procédé de fabrication en continu de copolymères à bloc vinylaromatique
FR2460975A1 (fr) Mousses liquides de resines polyesters non saturees renforcees et leur procede de fabrication
EP0072276B1 (fr) Composition pyrotechnique coulable du type fumigène à flamme colorée ou non comprenant un liant chloré
CA1147499A (fr) Procede pour l'elargissement de la repartition moleculaire du polyethylene par emploi de deux reacteurs fonctionnant a des pressions et temperatures tres differentes et en absence d'hydrogene
FR2710344A1 (fr) Compositions de polyéthylènes réticulables, utilisées notamment pour la fabrication de tubes et de gaines flexibles.
BE1012801A3 (fr) Procede d'introduction d'au moins un compose chimique dans une extrudeuse, dispositif d'introduction, extrudeuse equipee d'un tel dispositif et procedes utilisant une telle extrudeuse.
BE575082A (enrdf_load_stackoverflow)
CH392884A (fr) Procédé de production de copolymère diamine/thio-urée/urée et composition pour la mise en oeuvre du procédé
FR2651236A1 (fr) Procede de polymerisation du methacrylate de methyle.
BE663354A (enrdf_load_stackoverflow)
FR2511010A1 (fr) Nouveau melange polymerisable a base de bis (allylcarbonate) de diethyleneglycol, son procede de preparation et son utilisation pour la preparation de produits finis
BE897868A (fr) Agents empechants la reduction du poids moleculaire du caoutchouc de poly-isobutylene ou de butyle
FR2543311A1 (fr) Procede et dispositif de fabrication d'une fibre optique en matiere plastique
BE700761A (enrdf_load_stackoverflow)