GB1001725A - Process for the production of high polymers of formaldehyde - Google Patents

Process for the production of high polymers of formaldehyde

Info

Publication number
GB1001725A
GB1001725A GB1426/64A GB142664A GB1001725A GB 1001725 A GB1001725 A GB 1001725A GB 1426/64 A GB1426/64 A GB 1426/64A GB 142664 A GB142664 A GB 142664A GB 1001725 A GB1001725 A GB 1001725A
Authority
GB
United Kingdom
Prior art keywords
concentration
salt
formaldehyde
polyoxymethylenes
metal
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
GB1426/64A
Other languages
English (en)
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 GB1001725A publication Critical patent/GB1001725A/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
    • C08G2/08—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
    • C08G2/18—Copolymerisation of 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)
GB1426/64A 1963-01-31 1964-01-13 Process for the production of high polymers of formaldehyde Expired GB1001725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT192963 1963-01-31

Publications (1)

Publication Number Publication Date
GB1001725A true GB1001725A (en) 1965-08-18

Family

ID=11102138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1426/64A Expired GB1001725A (en) 1963-01-31 1964-01-13 Process for the production of high polymers of formaldehyde

Country Status (5)

Country Link
US (1) US3415783A (https=)
BE (1) BE643195A (https=)
DE (1) DE1745739C3 (https=)
GB (1) GB1001725A (https=)
NL (1) NL6400051A (https=)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551365A (en) * 1949-03-31 1951-05-01 Du Pont Polymerization of formaldehyde to paraformaldehyde with alkaline catalyst
NL110821C (https=) * 1957-09-06 1900-01-01
NL235301A (https=) * 1959-01-20
NL264283A (https=) * 1964-02-24

Also Published As

Publication number Publication date
DE1745739A1 (de) 1970-08-20
DE1745739B2 (de) 1973-06-20
BE643195A (https=) 1964-07-30
US3415783A (en) 1968-12-10
NL6400051A (https=) 1964-08-03
DE1745739C3 (de) 1974-01-24

Similar Documents

Publication Publication Date Title
GB1281685A (en) Precipitated calcium carbonate
GB1001725A (en) Process for the production of high polymers of formaldehyde
GB1051915A (https=)
GB1167679A (en) Production of 2-Hydroxy-4-Alkoxybenzophenones
GB1229416A (https=)
ES8406057A1 (es) Procedimiento para la preparacion de una solucion acuosa de cianamida estabilizada.
GB840206A (en) A process for the treatment of artificial sponges of regenerated cellulose, to prevent attack by bacteria and fungi and the sponges thus treated
GB1318999A (en) Production of 4-ureideohexahydropyrimidin-2-one
GB767629A (en) Improved process for the preparation of sodium bicarbonate and ammonium sulphate
GB1041408A (en) Improvements in or relating to the production of sodium bicarbonate
ATE26571T1 (de) Kristallisierung von polyaluminium-hydroxidkomplexen.
FR2287911A1 (fr) Sulfates de pullulane, leurs sels et leur procede de preparation
GB1063541A (en) Stable aqueous formaldehyde solutions
GB1153194A (en) Polymeric Impurity Removal from an Aqueous Quaternary Ammonium Salt Solution
GB1388936A (en) Chloroisocyanuric acids
GB1018449A (en) Process for the production of nitrogenous copolymers of formaldehyde
GB1233987A (https=)
ES385095A2 (es) Procedimiento para evitar sedimentaciones petrificantes en sistemas acuosos.
JPS6461310A (en) Modified saponite
JPS5579444A (en) Photographic reducing solution
ES415186A1 (es) Procedimiento para la preparacion de criolita.
GB1257270A (https=)
SU751840A1 (ru) Электролит дл электрохимического получени пероксодикарбоната кали
GB1049464A (en) Production of urea having good storage properties
AT202979B (de) Verfahren zur Herstellung von festen, kristallwasserhaltigen Metallflouboraten bzw. deren Mischungen mit Metallboraten