CH548428A - Procedimento per la produzione di poliossimetileni ad alto peso molecolare. - Google Patents

Procedimento per la produzione di poliossimetileni ad alto peso molecolare.

Info

Publication number
CH548428A
CH548428A CH1602571A CH1602571A CH548428A CH 548428 A CH548428 A CH 548428A CH 1602571 A CH1602571 A CH 1602571A CH 1602571 A CH1602571 A CH 1602571A CH 548428 A CH548428 A CH 548428A
Authority
CH
Switzerland
Prior art keywords
procedure
production
molecular weight
high molecular
weight polyoxymethylenes
Prior art date
Application number
CH1602571A
Other languages
English (en)
Italian (it)
Original Assignee
Sir Soc Italiana Resine 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 Sir Soc Italiana Resine Spa filed Critical Sir Soc Italiana Resine Spa
Publication of CH548428A publication Critical patent/CH548428A/it

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
    • 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
    • C08G2/10—Polymerisation of cyclic oligomers 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)
CH1602571A 1970-11-12 1971-11-03 Procedimento per la produzione di poliossimetileni ad alto peso molecolare. CH548428A (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3163170 1970-11-12

Publications (1)

Publication Number Publication Date
CH548428A true CH548428A (it) 1974-04-30

Family

ID=11234143

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1602571A CH548428A (it) 1970-11-12 1971-11-03 Procedimento per la produzione di poliossimetileni ad alto peso molecolare.

Country Status (9)

Country Link
US (1) US3786026A (enExample)
JP (1) JPS5439437B1 (enExample)
CA (1) CA959989A (enExample)
CH (1) CH548428A (enExample)
DE (1) DE2156112C2 (enExample)
FR (1) FR2113918B1 (enExample)
GB (1) GB1361035A (enExample)
NL (1) NL168529C (enExample)
YU (1) YU34210B (enExample)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD37568A (enExample) *
US2989510A (en) * 1958-06-20 1961-06-20 Celanese Corp High molecular weight polymer and process therefor
NL255237A (enExample) * 1959-08-29 1900-01-01
NL274804A (enExample) * 1961-02-15
US3372145A (en) * 1963-01-14 1968-03-05 Prod Dev Res Inst Procedure for continuous manufacture of polyoxymethylene of ultra-high degree of polymerization
FR1462943A (fr) * 1966-08-23 1966-12-16 Inst Khim Fiz An Usrr Procédé de préparation de copolymères-blocs de formaldéhyde
FR2001510A1 (fr) * 1968-02-08 1969-09-26 Japan Atomic Energy Res Inst Procede de fabrication de polyoxymethylene
US3684767A (en) * 1969-01-16 1972-08-15 Japan Atomic Energy Res Inst Method for preparing polyoxymethylene

Also Published As

Publication number Publication date
GB1361035A (en) 1974-07-24
DE2156112C2 (de) 1982-02-18
JPS5439437B1 (enExample) 1979-11-28
NL168529C (nl) 1982-04-16
NL168529B (nl) 1981-11-16
CA959989A (en) 1974-12-24
YU284471A (en) 1978-06-30
FR2113918B1 (enExample) 1974-03-29
NL7115567A (enExample) 1972-05-16
YU34210B (en) 1979-02-28
FR2113918A1 (enExample) 1972-06-30
US3786026A (en) 1974-01-15
DE2156112A1 (de) 1972-05-18

Similar Documents

Publication Publication Date Title
IT949522B (it) Poliimmide ad alto peso molecolare sclubile
CH550753A (it) Procedimento per la depolimerizzazione di polietilentereftalato.
IT942033B (it) Procedimento per la produzione di amilosi di basso peso molecolare
IT965837B (it) Copolicarbonati statistici di alto peso molecolare e procedimento per produrli
IT945719B (it) Procedimento per la produzione di rivestimenti mediante indurimento per mezzo di radiazione ionizzante
IT942955B (it) Procedimento per la fabbricazione di articoli stampati di vermiculi te espansa
IT967742B (it) Procedimento per la preparazione di poliisocianati ad alto peso molecolare
IT944438B (it) Procedimento per la produzione di composti di peso molecolare elevato
IT944958B (it) Procedimento per la produzione di espansi di resina fenolica
IT940416B (it) Macchina per la fabbricazione di bulloni
SE7501733L (sv) For framstellning av prostaglandinderivat.
CH548428A (it) Procedimento per la produzione di poliossimetileni ad alto peso molecolare.
BE757361A (nl) Samengestelde ligger,
IT943301B (it) Procedimento per la produzione con tinua di policondensati di alto pe so molecolare
IT946157B (it) Procedimento per la produzione di epsilon caprolattame e.o acetil cicloe sanoneossima
IT980326B (it) Procedimento per la produzione di melammina
IT991742B (it) Procedimento per la preparazione di carbonati alchilici ad alto peso molecolare
IT967054B (it) Copoliamidi lineari ad alto peso molecolare
IT954155B (it) Procedimento per la produzione di acilossidodecatriene
IT945654B (it) Procedimento per la produzione di monotioalchilenglicoli
CH538489A (it) Procedimento per la fabbricazione di derivati 1,4-benzodiazepinici
IT954380B (it) Procedimento per la produzione di formaldeide
IT955095B (it) Procedimento per la produzione di poli epsilon caprolattoni ad alto peso molecolare
IT987698B (it) Copoliamidi aromatiche di peso molecolare elevato
IT1019010B (it) Procedimento per la preparazione di ris.fenoliclorurati

Legal Events

Date Code Title Description
PL Patent ceased