[go: up one dir, main page]

FR1300492A - Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde - Google Patents

Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde

Info

Publication number
FR1300492A
FR1300492A FR873157A FR873157A FR1300492A FR 1300492 A FR1300492 A FR 1300492A FR 873157 A FR873157 A FR 873157A FR 873157 A FR873157 A FR 873157A FR 1300492 A FR1300492 A FR 1300492A
Authority
FR
France
Prior art keywords
formaldehyde
polymerization
preparation
molecular weight
high molecular
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
FR873157A
Other languages
French (fr)
Inventor
Kuno Wagner
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.)
Bayer AG
Original Assignee
Bayer AG
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 DEF32151A external-priority patent/DE1166474B/en
Application filed by Bayer AG filed Critical Bayer AG
Priority to FR873157A priority Critical patent/FR1300492A/en
Application granted granted Critical
Publication of FR1300492A publication Critical patent/FR1300492A/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
    • C08G2/08—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
    • C08G2/30—Chemical modification by after-treatment
    • C08G2/32—Chemical modification by after-treatment by esterification
    • 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
    • C08G2/34—Chemical modification by after-treatment by etherification

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)
FR873157A 1960-09-17 1961-09-14 Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde Expired FR1300492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR873157A FR1300492A (en) 1960-09-17 1961-09-14 Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEF32151A DE1166474B (en) 1960-09-17 1960-09-17 Process for the production of high molecular weight polyoxymethylenes
DEF0033898 1961-05-10
FR873157A FR1300492A (en) 1960-09-17 1961-09-14 Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde

Publications (1)

Publication Number Publication Date
FR1300492A true FR1300492A (en) 1962-08-03

Family

ID=27210190

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873157A Expired FR1300492A (en) 1960-09-17 1961-09-14 Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde

Country Status (1)

Country Link
FR (1) FR1300492A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194789A (en) * 1961-02-06 1965-07-13 Kanegafuchi Spinning Co Ltd Polymerization of formaldehyde
US3296205A (en) * 1962-07-16 1967-01-03 Bayer Ag Polymerization of gaseous formaldehyde
DE1242873B (en) * 1961-08-25 1967-06-22 Tenneco Chem Process for the production of high molecular weight polyoxymethylenes
US3470135A (en) * 1965-07-08 1969-09-30 Asahi Chemical Ind Process for the preparation of polyacetal resin
WO2019135046A1 (en) 2018-01-02 2019-07-11 Collay Philippe Denis Gerard Improvement to a deflector for protecting the feet of a structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194789A (en) * 1961-02-06 1965-07-13 Kanegafuchi Spinning Co Ltd Polymerization of formaldehyde
DE1242873B (en) * 1961-08-25 1967-06-22 Tenneco Chem Process for the production of high molecular weight polyoxymethylenes
US3296205A (en) * 1962-07-16 1967-01-03 Bayer Ag Polymerization of gaseous formaldehyde
US3470135A (en) * 1965-07-08 1969-09-30 Asahi Chemical Ind Process for the preparation of polyacetal resin
WO2019135046A1 (en) 2018-01-02 2019-07-11 Collay Philippe Denis Gerard Improvement to a deflector for protecting the feet of a structure

Similar Documents

Publication Publication Date Title
FR1227223A (en) Preparation of high molecular weight polyoxymethylene
BE597654A (en) A process for the preparation of linear high molecular weight polyesters.
FR1257780A (en) Improvement in the mass polymerization of ethylene derivatives
FR1300492A (en) Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde
BE605615A (en) High molecular weight poly-thioacetals and their preparation
FR1256953A (en) Process for the preparation of high molecular weight, low monomer polyamides
BE608221A (en) Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde
BE608622A (en) Process for manufacturing high molecular weight polyoxymethylenes
FR1339198A (en) Process for the preparation of high molecular weight polyoxymethylenes
BE616168A (en) Improved process for the preparation of high molecular weight polyoxymethylene
FR1425333A (en) Preparation of high molecular weight polylactides
FR1258364A (en) Process for the preparation of high molecular weight polyethers by polymerization of formaldehyde
BE605509A (en) Process for preparing linear high molecular weight organo-silicic acid-arylene polyesters
FR1361264A (en) Preparation of high molecular weight polyoxymethylenes
FR1381223A (en) New terephthalic derivatives, their preparation and their applications
FR1582M (en) New drugs consisting of biguanide derivatives.
FR83898E (en) Improvements to the preparation of high molecular weight polyoxymethylene
FR1367281A (en) Preparation of high molecular weight polyoxymethylenes by polymerization of formaldehyde in solution in methanol
FR1371091A (en) Process for the preparation of high molecular weight polyoxymethylenes
FR1322582A (en) Process for the preparation of high molecular weight polyoxymethylenes
FR1322460A (en) Improved process for the preparation of high molecular weight polyoxymethylenes
FR1326962A (en) Preparation of high molecular weight olefins
FR1287123A (en) New high molecular weight copolyesters
FR1293496A (en) Process for the preparation of linear high molecular weight organo-silicic acid-arylene polyesters
FR1314286A (en) Polymerization of trioxane