GB878163A - Improvements in or relating to the manufacture of polyoxymethylenes - Google Patents

Improvements in or relating to the manufacture of polyoxymethylenes

Info

Publication number
GB878163A
GB878163A GB2302059A GB2302059A GB878163A GB 878163 A GB878163 A GB 878163A GB 2302059 A GB2302059 A GB 2302059A GB 2302059 A GB2302059 A GB 2302059A GB 878163 A GB878163 A GB 878163A
Authority
GB
United Kingdom
Prior art keywords
catalysts
boron trifluoride
complexes
water
acid
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
GB2302059A
Inventor
Walter Wilson
Roger Frederick Hill
Herbert May
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.)
British Industrial Plastics Ltd
Original Assignee
British Industrial Plastics 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
Priority to BE592599D priority Critical patent/BE592599A/xx
Priority to NL127433D priority patent/NL127433C/xx
Priority to NL253350D priority patent/NL253350A/xx
Application filed by British Industrial Plastics Ltd filed Critical British Industrial Plastics Ltd
Priority to GB2302059A priority patent/GB878163A/en
Priority to DE19601495124 priority patent/DE1495124A1/en
Priority to DE19601445220 priority patent/DE1445220A1/en
Priority to FR832003A priority patent/FR1264730A/en
Priority to CH760060A priority patent/CH390546A/en
Publication of GB878163A publication Critical patent/GB878163A/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
    • C08G2/06—Catalysts
    • 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
    • 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
    • C08G2/28—Post-polymerisation treatments

Landscapes

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

Abstract

Trioxane is polymerized in the presence of an electrophilic catalyst, the water content of the reaction mixture being less than 0,1%. Specified catalysts are Friedel-Crafts catalysts particularly boron trifluoride, stannic chloride and ferric chloride complexes of these catalysts with water and organic compounds containing an oxygen, nitrogen (when weakly basic) or p sulphur donor atom, non-oxidizing inorganic acids and their boron trifluoride complexes, e.g. dihydroxyfluoroboric acid and polyphosphoric acid, halogens and interhalogen compounds, and oxonium salts. The polymerization may take place in the presence or absence of an inert liquid medium, e.g. hydrocarbons, nitro-hydro carbons and carboxylic esters. Metallic ions are removed from the product by extracting with an organic solvent or a solution of a sequestering agent. Specifications 557,873 and 748,836 are referred to.
GB2302059A 1959-06-02 1959-07-03 Improvements in or relating to the manufacture of polyoxymethylenes Expired GB878163A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE592599D BE592599A (en) 1959-07-03
NL127433D NL127433C (en) 1959-07-03
NL253350D NL253350A (en) 1959-07-03
GB2302059A GB878163A (en) 1959-07-03 1959-07-03 Improvements in or relating to the manufacture of polyoxymethylenes
DE19601495124 DE1495124A1 (en) 1959-06-02 1960-07-02 Process for the preparation of polyoxymethylenes
DE19601445220 DE1445220A1 (en) 1959-07-03 1960-07-02 Process for the preparation of polyoxymethylenes
FR832003A FR1264730A (en) 1959-07-03 1960-07-02 Process for the polymerization of trioxane and products thus obtained
CH760060A CH390546A (en) 1959-07-03 1960-07-04 Trioxane polymerization process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2302059A GB878163A (en) 1959-07-03 1959-07-03 Improvements in or relating to the manufacture of polyoxymethylenes
GB1961560 1960-05-23
GB1817560 1960-05-23

Publications (1)

Publication Number Publication Date
GB878163A true GB878163A (en) 1961-09-27

Family

ID=27257592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2302059A Expired GB878163A (en) 1959-06-02 1959-07-03 Improvements in or relating to the manufacture of polyoxymethylenes

Country Status (5)

Country Link
BE (1) BE592599A (en)
CH (1) CH390546A (en)
DE (1) DE1445220A1 (en)
GB (1) GB878163A (en)
NL (2) NL253350A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197438A (en) * 1961-01-16 1965-07-27 Grace W R & Co Polymerization and co-polymerization of trioxane in inert solvents
US3207726A (en) * 1960-06-16 1965-09-21 Jaffe Fred Preparing trioxane epoxide copolymers with trialkyloxonium catalysts
US3219631A (en) * 1960-11-15 1965-11-23 Hoechst Ag Copolymers of cyclic acetals with oxacyclopropane or oxacyclobutane or the derivatives thereof and process for preparing said copolymers
US3256246A (en) * 1961-10-27 1966-06-14 Hoechst Ag Copolymerization of trioxane with preformed linear polymers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1040171A (en) * 1962-03-19 1966-08-24 British Industrial Plastics Manufacture of polyoxymethylenes
DE1204823B (en) * 1963-04-30 1965-11-11 Hoechst Ag Process for polymerizing cyclic acetals individually or in admixture
NL125851C (en) * 1963-09-28

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207726A (en) * 1960-06-16 1965-09-21 Jaffe Fred Preparing trioxane epoxide copolymers with trialkyloxonium catalysts
US3219631A (en) * 1960-11-15 1965-11-23 Hoechst Ag Copolymers of cyclic acetals with oxacyclopropane or oxacyclobutane or the derivatives thereof and process for preparing said copolymers
US3197438A (en) * 1961-01-16 1965-07-27 Grace W R & Co Polymerization and co-polymerization of trioxane in inert solvents
US3256246A (en) * 1961-10-27 1966-06-14 Hoechst Ag Copolymerization of trioxane with preformed linear polymers

Also Published As

Publication number Publication date
NL127433C (en)
CH390546A (en) 1965-04-15
BE592599A (en)
DE1445220A1 (en) 1968-11-07
NL253350A (en)

Similar Documents

Publication Publication Date Title
ES433412A1 (en) Process for the polymerization of formaldehyde
GB1002761A (en) Polymeric products from trioxan and aldehydes
GB878163A (en) Improvements in or relating to the manufacture of polyoxymethylenes
ES450547A1 (en) Method for polymerizing ethylenically unsaturated monomers in order to eliminate polymer deposition
GB877820A (en) Polymers
GB1030306A (en) Process for the catalytic hydrogenation of polymers of dienes
GB1009884A (en) Improved polymeric products
GB906959A (en) A process for the production of polyoxymethylenes with improved mechanical properties
ES402219A1 (en) Nitration process
ES376997A1 (en) Process for polymerization of tetrahydrofuran
GB939367A (en) Polytrithiane of high molecular weight and process for its preparation
JPS53111087A (en) Storing of trioxane
GB1022563A (en) Copolymers
ES326852A1 (en) Aromatic polycarboxilic acid purification procedure. (Machine-translation by Google Translate, not legally binding)
GB875558A (en) Process for the production of eupolyoxymethylenes
GB814360A (en) Improvements in the production of esters of tertiary alcohols with unsaturated acids
ES291110A1 (en) Procedure for preparing copolymers of high molecular weight (Machine-translation by Google Translate, not legally binding)
GB841244A (en) Oxidation of organic compounds
ES408706A1 (en) Process for polymerization of tetrahydrofuran
Nagamachi et al. HYDROXYLATION OF ANISOLES BY PHOTOOXYGENATION IN THE PRESENCE OF LEWIS ACIDS
GB1022564A (en) Copolymers
ES410161A1 (en) A procedure for preparing 2- (6-metoxy-2-nafthy) propionic acid. (Machine-translation by Google Translate, not legally binding)
GB1041611A (en) Process for the production of polyoxymethylene
GB1044866A (en) Improvements in or relating to thermoplastic compositions
GB936132A (en) Polymerisation process