GB1071653A - Process for copolymerising trioxan - Google Patents

Process for copolymerising trioxan

Info

Publication number
GB1071653A
GB1071653A GB292567A GB292567A GB1071653A GB 1071653 A GB1071653 A GB 1071653A GB 292567 A GB292567 A GB 292567A GB 292567 A GB292567 A GB 292567A GB 1071653 A GB1071653 A GB 1071653A
Authority
GB
United Kingdom
Prior art keywords
copolymers
catalyst
tetrafluoroborate
trioxan
vinyl
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
GB292567A
Inventor
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
Application filed by British Industrial Plastics Ltd filed Critical British Industrial Plastics Ltd
Publication of GB1071653A publication Critical patent/GB1071653A/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
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • 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
    • C08G2/30—Chemical modification by after-treatment

Landscapes

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

Abstract

Copolymers of trioxan and a cyclic carboxylic ester or an olefinically unsaturated compound are prepared by copolymerizing under anhydrous conditions in the presence of a carbonium tetrafluoroborate catalyst. Specified classes of comonomer are: lactones, styrene and substituted styrenes, vinyl ethers, N-vinyl-and C-vinyl-substituted aromatic heterocyclic compounds, ethylenically unsaturated aliphatic and alicyclic hydrocarbons, and allyl compounds. The catalyst may be used as the free or solvated ionic species. The polymerization may take place in an inert liquid medium, a dry inert atmosphere such as nitrogen or carbon dioxide, at temperatures above 50 DEG C., and with the catalyst dissolved, e.g. in nitroethane. The copolymers may be stabilized by esterification or by incorporating various nitrogen-containing compounds and phenols. The copolymers may be mixed with lubricants and fillers, in addition to the stabilizers, and may be moulded into films, fibres and protective coatings. The catalyst residues may be removed from the copolymers by washing with an aqueous medium or an organic solvent. In the examples, trioxan-styrene copolymers were prepared by copolymerizing in the presence of cyclohexane and using the following catalysts: (1) triphenyl methyl tetrafluoroborate in nitroethane and (2) and (3) dioxolinium tetrafluoroborate in nitromethane.
GB292567A 1962-11-14 1962-11-14 Process for copolymerising trioxan Expired GB1071653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4309462A GB1071652A (en) 1962-11-14 1962-11-14 Polymeric compositions

Publications (1)

Publication Number Publication Date
GB1071653A true GB1071653A (en) 1967-06-07

Family

ID=10427301

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4309462A Expired GB1071652A (en) 1962-11-14 1962-11-14 Polymeric compositions
GB292567A Expired GB1071653A (en) 1962-11-14 1962-11-14 Process for copolymerising trioxan

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4309462A Expired GB1071652A (en) 1962-11-14 1962-11-14 Polymeric compositions

Country Status (4)

Country Link
DE (1) DE1217616B (en)
FR (1) FR1388753A (en)
GB (2) GB1071652A (en)
SE (2) SE300312B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU497960B2 (en) 1974-04-11 1979-01-25 Minnesota Mining And Manufacturing Company Photopolymerizable compositions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT220366B (en) * 1959-01-27 1962-03-26 Hoechst Ag Process for the production of high molecular weight, thermoplastic polyacetals

Also Published As

Publication number Publication date
SE300312B (en) 1968-04-22
DE1217616B (en) 1966-05-26
GB1071652A (en) 1967-06-07
FR1388753A (en) 1965-02-12
SE303883B (en) 1968-09-09

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