GB921670A - Process for the production of formaldehyde polymers of high molecular weight - Google Patents

Process for the production of formaldehyde polymers of high molecular weight

Info

Publication number
GB921670A
GB921670A GB983461A GB983461A GB921670A GB 921670 A GB921670 A GB 921670A GB 983461 A GB983461 A GB 983461A GB 983461 A GB983461 A GB 983461A GB 921670 A GB921670 A GB 921670A
Authority
GB
United Kingdom
Prior art keywords
production
molecular weight
high molecular
formaldehyde polymers
ammonia
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
GB983461A
Inventor
Helmut Pobloth
Werner Winzer
Isolde Winkler
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.)
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
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 DEV19724A priority Critical patent/DE1140707B/en
Priority to FR851973A priority patent/FR1279090A/en
Application filed by Leuna Werke GmbH, Leuna Werke Walter Ulbright Germany VEB filed Critical Leuna Werke GmbH
Priority to GB983461A priority patent/GB921670A/en
Publication of GB921670A publication Critical patent/GB921670A/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
    • C08G2/08—Polymerisation of formaldehyde

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 is polymerized in the presence of solvents or suspension agents in the presence of ammonia or condensation products of ammonia with aliphatic aldehydes as catalysts. Specified solvents or suspension agents are toluene and n-heptane while hexamethylene tetramine and aldehyde-ammonias are specified catalysts.
GB983461A 1960-11-30 1961-03-17 Process for the production of formaldehyde polymers of high molecular weight Expired GB921670A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEV19724A DE1140707B (en) 1960-11-30 1960-11-30 Process for the production of high molecular weight formaldehyde polymers
FR851973A FR1279090A (en) 1961-02-07 1961-02-07 Process for the preparation of high molecular weight formaldehyde polymers and products conforming to those obtained
GB983461A GB921670A (en) 1961-03-17 1961-03-17 Process for the production of formaldehyde polymers of high molecular weight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB983461A GB921670A (en) 1961-03-17 1961-03-17 Process for the production of formaldehyde polymers of high molecular weight

Publications (1)

Publication Number Publication Date
GB921670A true GB921670A (en) 1963-03-20

Family

ID=9879673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB983461A Expired GB921670A (en) 1960-11-30 1961-03-17 Process for the production of formaldehyde polymers of high molecular weight

Country Status (1)

Country Link
GB (1) GB921670A (en)

Similar Documents

Publication Publication Date Title
CH451512A (en) Process for the polymerization of monomeric lactams
CH412331A (en) Process for the production of high molecular weight formaldehyde polymers
GB989085A (en) Catalytic compositions for the polymerisation of olefines
GB921670A (en) Process for the production of formaldehyde polymers of high molecular weight
CH411354A (en) Process for the production of high molecular weight polyoxymethylenes by polymerizing formaldehyde
AT241808B (en) Process for the production of new high molecular weight copolymers
GB875558A (en) Process for the production of eupolyoxymethylenes
CH408421A (en) Process for the production of high molecular weight formaldehyde polymers
CH409400A (en) Process for the production of high molecular weight polyoxymethylenes
CH434759A (en) Process for the production of vulcanizable, largely linear, high molecular weight copolymers
AT238951B (en) Process and device for the polymerization of gaseous formaldehyde
CH415055A (en) Process for the production of high molecular weight formaldehyde polymers
AU219861A (en) Process for preparing pure monomeric formaldehyde and high molecular weight polymers made thereof
MY6100016A (en) Method of polymerization of olefins and the linear high molecular weight polymers produced thereby
DK112346B (en) Continuous process for the production of linear, high molecular weight polyamides and apparatus for use in carrying out the process.
AU266598B2 (en) Hich molecular weight linear polymers and process of preparing them
GB901200A (en) Method of preparing acetaldehyde base polymers
AT232523B (en) Process for the production of water-insoluble, high molecular weight and film-forming, amide-like condensation products of alginic acid
AU194561A (en) High molecular weight linear polymers and process for preparing them
CH431079A (en) Process for the production of high molecular weight polyoxymethylenes
CH431078A (en) Process for the production of high molecular weight polyoxymethylenes
FR1342505A (en) Method for adjusting the molecular weight of basic nitrogenous condensation polymers
FR1238632A (en) Process for preparing low molecular weight polymers from olefinically unsaturated monomers
GR18739B (en) ACRYLONYTRY POLYMERIZATION METHOD AND PRODUCTS PRODUCED FROM IT HAVE IMPROVED PROPERTY.
CH408424A (en) Process for controlling the molecular weight in the polymerization of olefins