GB964115A - Process for the production of polyoxymethylene copolymers - Google Patents

Process for the production of polyoxymethylene copolymers

Info

Publication number
GB964115A
GB964115A GB944062A GB944062A GB964115A GB 964115 A GB964115 A GB 964115A GB 944062 A GB944062 A GB 944062A GB 944062 A GB944062 A GB 944062A GB 964115 A GB964115 A GB 964115A
Authority
GB
United Kingdom
Prior art keywords
vinyl
formaldehyde
acid esters
per cent
mol per
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
GB944062A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB964115A publication Critical patent/GB964115A/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
    • 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
    • C08G2/20—Copolymerisation of aldehydes or ketones with other 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
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/26—Copolymerisation of aldehydes or ketones with compounds containing carbon-to-carbon unsaturation

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

Monomeric formaldehyde, or trioxane or other low oligomers of formaldehyde are polymerized together with ethylenically unsaturated compounds in the presence of ionic catalysts. Specified comonomers are styrene (preferred), isoprene, isobutylene, chloroprene, vinyl acetate, vinyl-n-butyl ether, vinyl isobutyl ether, acrylic acid esters, methacrylic acid esters, acrylonitrile, methacrylonitrile, acrolein, methacrolein and vinyl methyl ketone used in quantities such that the copolymer contains 0.1 to 50 mol per cent of comonomer, preferably 0.5 to 3 mol per cent. Specified catalysts are boron trifluoride, trimethylamine, quaternary ammonium salts, halogen peracid, mixed anhydrides, acetyl perchlorate, phosphines and sulphur compounds. Solution or bulk polymerization procedures may be used while the formaldehyde may be initially polymerised to the stage of precipitation of polyoxymethylene and the unsaturated compound then added. Specifications 770,717 and 796,863 are referred to.
GB944062A 1961-03-10 1962-03-12 Process for the production of polyoxymethylene copolymers Expired GB964115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0035609 1961-03-10

Publications (1)

Publication Number Publication Date
GB964115A true GB964115A (en) 1964-07-15

Family

ID=7042718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB944062A Expired GB964115A (en) 1961-03-10 1962-03-12 Process for the production of polyoxymethylene copolymers

Country Status (4)

Country Link
BE (1) BE614946A (en)
DE (1) DE1445344A1 (en)
GB (1) GB964115A (en)
NL (1) NL275696A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB991539A (en) * 1963-02-22 1965-05-12 Skanska Attikfabriken Ab Copolymerization of trioxane
US3408332A (en) * 1963-04-26 1968-10-29 Ethyl Corp Formaldehyde and diene interpolymers
US3367919A (en) * 1963-06-24 1968-02-06 Uniroyal Inc Copolymers formed by reacting terephthalaldehyde with unsaturated monomer utilizing a friedel-crafts catalyst
US3336263A (en) * 1964-03-02 1967-08-15 Diamond Alkali Co Process for preparing copolymers of formaldehyde and n, n'-methylenebisacrylamide and resulting product
US3330808A (en) * 1964-10-12 1967-07-11 Dow Chemical Co Copolymers of perfluoroolefins and an aldehyde and process of preparing same

Also Published As

Publication number Publication date
NL275696A (en)
BE614946A (en)
DE1445344A1 (en) 1968-12-05

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