FR1253275A - Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde - Google Patents

Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde

Info

Publication number
FR1253275A
FR1253275A FR814232A FR814232A FR1253275A FR 1253275 A FR1253275 A FR 1253275A FR 814232 A FR814232 A FR 814232A FR 814232 A FR814232 A FR 814232A FR 1253275 A FR1253275 A FR 1253275A
Authority
FR
France
Prior art keywords
formaldehyde
solution
treating
obtaining
view
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
FR814232A
Other languages
French (fr)
Inventor
Marcel Delassus
Pierre Vasseur
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
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 FR814232A priority Critical patent/FR1253275A/en
Priority to GB3830960A priority patent/GB895193A/en
Priority to CH1316960A priority patent/CH396415A/en
Priority to BE597457A priority patent/BE597457A/en
Priority to LU39467D priority patent/LU39467A1/xx
Priority to NL259254A priority patent/NL130323C/xx
Priority to DEH41315A priority patent/DE1161021B/en
Application granted granted Critical
Publication of FR1253275A publication Critical patent/FR1253275A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
FR814232A 1959-12-28 1959-12-28 Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde Expired FR1253275A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR814232A FR1253275A (en) 1959-12-28 1959-12-28 Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde
GB3830960A GB895193A (en) 1959-12-28 1960-11-08 Production of formaldehyde polymers and formaldehyde solutions
CH1316960A CH396415A (en) 1959-12-28 1960-11-24 Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde and a concentrated solution of formaldehyde
BE597457A BE597457A (en) 1959-12-28 1960-11-24 Process for treating a concentrated aqueous formaldehyde solution with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde.
LU39467D LU39467A1 (en) 1959-12-28 1960-11-28
NL259254A NL130323C (en) 1959-12-28 1960-12-20
DEH41315A DE1161021B (en) 1959-12-28 1960-12-24 Process for the polymerization of formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR814232A FR1253275A (en) 1959-12-28 1959-12-28 Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde

Publications (1)

Publication Number Publication Date
FR1253275A true FR1253275A (en) 1961-02-10

Family

ID=8723102

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814232A Expired FR1253275A (en) 1959-12-28 1959-12-28 Process for treating a concentrated aqueous solution of formaldehyde with a view to obtaining, simultaneously, a solid polymer of formaldehyde, and a solution with a controlled concentration of formaldehyde

Country Status (7)

Country Link
BE (1) BE597457A (en)
CH (1) CH396415A (en)
DE (1) DE1161021B (en)
FR (1) FR1253275A (en)
GB (1) GB895193A (en)
LU (1) LU39467A1 (en)
NL (1) NL130323C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388172A (en) * 1962-07-17 1968-06-11 Montedison Spa Water-soluble paraformaldehyde compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388172A (en) * 1962-07-17 1968-06-11 Montedison Spa Water-soluble paraformaldehyde compositions

Also Published As

Publication number Publication date
LU39467A1 (en) 1961-01-28
GB895193A (en) 1962-05-02
BE597457A (en) 1961-03-15
DE1161021B (en) 1964-01-09
CH396415A (en) 1965-07-31
NL130323C (en) 1970-07-15
NL259254A (en) 1964-04-27

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