FR80142E - New process for the preparation of polyformaldehydes - Google Patents

New process for the preparation of polyformaldehydes

Info

Publication number
FR80142E
FR80142E FR868898A FR868898A FR80142E FR 80142 E FR80142 E FR 80142E FR 868898 A FR868898 A FR 868898A FR 868898 A FR868898 A FR 868898A FR 80142 E FR80142 E FR 80142E
Authority
FR
France
Prior art keywords
polyformaldehydes
preparation
new process
new
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
FR868898A
Other languages
French (fr)
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.)
Houilleres du Bassin du Nord et du Pas de Calais
Original Assignee
Houilleres du Bassin du Nord et du Pas de Calais
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 FR850550A external-priority patent/FR1292224A/en
Priority claimed from FR855508A external-priority patent/FR79473E/en
Application filed by Houilleres du Bassin du Nord et du Pas de Calais filed Critical Houilleres du Bassin du Nord et du Pas de Calais
Priority to FR868898A priority Critical patent/FR80142E/en
Priority to CH84962A priority patent/CH410416A/en
Application granted granted Critical
Publication of FR80142E publication Critical patent/FR80142E/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
    • C08G2/02—Polymerisation initiated by wave energy or by particle radiation
    • 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
    • C08G2/08—Polymerisation 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
    • C08G2/10—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
    • C08G2/30—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)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
FR868898A 1961-01-24 1961-07-25 New process for the preparation of polyformaldehydes Expired FR80142E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR868898A FR80142E (en) 1961-01-24 1961-07-25 New process for the preparation of polyformaldehydes
CH84962A CH410416A (en) 1961-01-24 1962-01-24 Process for the preparation of polyformaldehydes

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR850550A FR1292224A (en) 1961-01-24 1961-01-24 New process for the preparation of polyformaldehydes
FR855508A FR79473E (en) 1961-01-24 1961-03-14 New process for the preparation of polyformaldehydes
FR859577A FR79665E (en) 1961-01-24 1961-04-22 New process for the preparation of polyformaldehydes
FR868698 1961-07-25
FR868898A FR80142E (en) 1961-01-24 1961-07-25 New process for the preparation of polyformaldehydes

Publications (1)

Publication Number Publication Date
FR80142E true FR80142E (en) 1963-03-15

Family

ID=31721791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868898A Expired FR80142E (en) 1961-01-24 1961-07-25 New process for the preparation of polyformaldehydes

Country Status (2)

Country Link
CH (1) CH410416A (en)
FR (1) FR80142E (en)

Also Published As

Publication number Publication date
CH410416A (en) 1966-03-31

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