ES265191A1 - Un procedimiento para preparar polioximetiles con grado elevado de polimerizaciën - Google Patents

Un procedimiento para preparar polioximetiles con grado elevado de polimerizaciën

Info

Publication number
ES265191A1
ES265191A1 ES0265191A ES265191A ES265191A1 ES 265191 A1 ES265191 A1 ES 265191A1 ES 0265191 A ES0265191 A ES 0265191A ES 265191 A ES265191 A ES 265191A ES 265191 A1 ES265191 A1 ES 265191A1
Authority
ES
Spain
Prior art keywords
formaldehyde
polyoxymethylenes
obtaining high
high polymers
acid
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
ES0265191A
Other languages
English (en)
Spanish (es)
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of ES265191A1 publication Critical patent/ES265191A1/es
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
    • C08G2/18—Copolymerisation of aldehydes or ketones
    • C08G2/20—Copolymerisation of aldehydes or ketones with other aldehydes or ketones

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES0265191A 1960-02-25 1961-02-24 Un procedimiento para preparar polioximetiles con grado elevado de polimerizaciën Expired ES265191A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT323460 1960-02-25

Publications (1)

Publication Number Publication Date
ES265191A1 true ES265191A1 (es) 1961-08-16

Family

ID=11104518

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0265191A Expired ES265191A1 (es) 1960-02-25 1961-02-24 Un procedimiento para preparar polioximetiles con grado elevado de polimerizaciën

Country Status (4)

Country Link
US (1) US3257359A (en:Method)
BE (1) BE600609A (en:Method)
ES (1) ES265191A1 (en:Method)
GB (1) GB895379A (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446776A (en) * 1964-11-14 1969-05-27 Sumitomo Chemical Co Process for producing high molecular weight polymer of formaldehyde

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296249A (en) * 1940-08-26 1942-09-22 Du Pont Polymers of formaldehyde
US2551365A (en) * 1949-03-31 1951-05-01 Du Pont Polymerization of formaldehyde to paraformaldehyde with alkaline catalyst
US2768994A (en) * 1952-08-30 1956-10-30 Du Pont Polyoxymethylenes
US2795571A (en) * 1956-04-17 1957-06-11 Du Pont Catalytic process for polymerizing trioxane to tough, high molecular weight polyoxymethylene
US2992277A (en) * 1959-04-28 1961-07-11 Du Pont Paraformaldehyde manufacture
NL110884C (en:Method) * 1959-08-17

Also Published As

Publication number Publication date
GB895379A (en) 1962-05-02
US3257359A (en) 1966-06-21
BE600609A (en:Method)

Similar Documents

Publication Publication Date Title
GB1099643A (en) Preparation of alkylidene diureas
ES265191A1 (es) Un procedimiento para preparar polioximetiles con grado elevado de polimerizaciën
GB920759A (en) Method for making methylolacrylamide
GB1256172A (en) Production of 3-ketobutanol-(1)
GB1092632A (en) Improved process for the production of n-methylol formamide
ES316418A1 (es) Procedimiento de preparaciën de azomicina y sus homëlogos
ES300274A1 (es) Un procedimiento para la producción de poliaminas aromáticas
GB1025648A (en) Production of pentaerythritol and dipentaerythritol
ES290562A1 (es) Procedimiento de preparación de derivados de la heparina
GB951887A (en) Production of condensation products of vinylsulphonamide and formaldehyde
GB961387A (en) Process for the preparation of 2-cyano-4-nitrostilbenes
ES396306A1 (es) Procedimiento para alcohilar derivados piridinicos y para obtener alcohil- y cicloalcohil-derivados.
GB609059A (en) Improvements in or relating to the manufacture of alkyl pyridines
GB1344732A (en) Process for the preparation of tris-hydroxymethyl-phosphine oxide
ES336596A1 (es) Procedimiento para la preparacion de derivados de 5'-fosfa-to de piridoxal.
ES254822A1 (es) Un procedimiento para la produccion de cloruro cianurico
GB927280A (en) Process for the manufacture of modified cation active urea formaldehyde resins
GB860909A (en) Improvements in the production of carboxylic acid nitriles
GB961645A (en) Process for the production of 1,1-dimethylol cyclohex-3-ene
ES358759A1 (es) Un procedimiento para la preparacion de 2-(i,4,5-tricloro- fenoxi)-alcanol.
GB1010883A (en) Process for preparing reactive polyacrolein alkali solution
GB1154066A (en) Process for preparing 1-Amino-3-Carboxy-Propane-2-Sulfonic Acid
GB1087259A (en) Process for producing furan
GB720068A (en) Production of modified melamine-formaldehyde resinous condensation products and mater ials treated therewith
ES398319A1 (es) Procedimiento para la obtencion de derivados bencenicos de caracter heterociclico.