ES433411A1 - Un procedimiento para la preparacion de polioximetileno. - Google Patents

Un procedimiento para la preparacion de polioximetileno.

Info

Publication number
ES433411A1
ES433411A1 ES433411A ES433411A ES433411A1 ES 433411 A1 ES433411 A1 ES 433411A1 ES 433411 A ES433411 A ES 433411A ES 433411 A ES433411 A ES 433411A ES 433411 A1 ES433411 A1 ES 433411A1
Authority
ES
Spain
Prior art keywords
polyformaldehyde
parallel
block
reaction medium
recurring units
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
ES433411A
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of ES433411A1 publication Critical patent/ES433411A1/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
    • C08G2/08—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)
  • Polyamides (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polyethers (AREA)
ES433411A 1973-12-28 1974-12-27 Un procedimiento para la preparacion de polioximetileno. Expired ES433411A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT32347/73A IT1006689B (it) 1973-12-28 1973-12-28 Procedimento per la polimerizza zione della formaldeide

Publications (1)

Publication Number Publication Date
ES433411A1 true ES433411A1 (es) 1976-11-16

Family

ID=11235277

Family Applications (2)

Application Number Title Priority Date Filing Date
ES433412A Expired ES433412A1 (es) 1973-12-28 1974-12-27 Un proceimiento para preparar y estabilizar simultaneamenteun polioximetileno.
ES433411A Expired ES433411A1 (es) 1973-12-28 1974-12-27 Un procedimiento para la preparacion de polioximetileno.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES433412A Expired ES433412A1 (es) 1973-12-28 1974-12-27 Un proceimiento para preparar y estabilizar simultaneamenteun polioximetileno.

Country Status (6)

Country Link
US (1) US3979480A (es)
JP (1) JPS5313477B2 (es)
DE (1) DE2461559C2 (es)
ES (2) ES433412A1 (es)
FR (1) FR2256188B1 (es)
IT (1) IT1006689B (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1014528B (it) * 1973-12-28 1977-04-30 Sir Soc Italiana Resine Spa Copolimeri a blocchi
IT1030931B (it) * 1974-12-20 1979-04-10 Sir Soc Italiana Resine Spa Procedimento per la preparazione e la stabilizzazione dei polios simetiueni
IT1043744B (it) * 1975-10-30 1980-02-29 Sir Soc Italiana Resine Spa Copolimeri a blocchi
IT1043748B (it) * 1975-10-30 1980-02-29 Sir Soc Italiana Resine Spa Procedimente per la polimerizzazione della formaldeide
US4355153A (en) * 1980-11-19 1982-10-19 Societa' Italiana Resine S.I.R. S.P.A. Process for the polymerization of formaldehyde
DE3044940A1 (de) * 1980-11-28 1982-07-01 Società Italiana Resine S.I.R. S.p.A., Milano Katalysator und seine verwendung zur herstellung von polyformaldehyd
IT1238693B (it) * 1990-02-16 1993-09-01 Montedipe Srl Mescole a base di polimeri vinilaromatici ad elevate caratteristiche meccaniche
US20010044588A1 (en) * 1996-02-22 2001-11-22 Mault James R. Monitoring system
EP1054622A4 (en) 1998-02-05 2005-09-07 Healthetech Inc METABOLIC CALORIMETER IMPLEMENTING RESPIRATORY GAS ANALYSIS
US6406435B1 (en) 1998-11-17 2002-06-18 James R. Mault Method and apparatus for the non-invasive determination of cardiac output
US6899684B2 (en) * 1999-08-02 2005-05-31 Healthetech, Inc. Method of respiratory gas analysis using a metabolic calorimeter
US6468222B1 (en) * 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
WO2001028495A2 (en) 1999-10-08 2001-04-26 Healthetech, Inc. Indirect calorimeter for weight control
US6612306B1 (en) 1999-10-13 2003-09-02 Healthetech, Inc. Respiratory nitric oxide meter
US6629934B2 (en) 2000-02-02 2003-10-07 Healthetech, Inc. Indirect calorimeter for medical applications
AU2001265022A1 (en) * 2000-05-25 2001-12-03 Healthetech, Inc. Physiological monitoring using wrist-mounted device
CA2413657A1 (en) * 2000-06-16 2001-12-20 Healthetech, Inc. Speech recognition capability for a personal digital assistant
US6607387B2 (en) 2000-10-30 2003-08-19 Healthetech, Inc. Sensor system for diagnosing dental conditions
AU2002250237A1 (en) * 2001-03-02 2002-09-19 Healthetech, Inc. A system and method of metabolic rate measurement
US6747096B2 (en) * 2001-04-10 2004-06-08 University Of Akron Block copolymers of lactone and lactam, compatibilizing agents, and compatiblized polymer blends
US6486257B1 (en) 2001-04-10 2002-11-26 University Of Akron Block copolymers of lactone and lactam, compatabilizing agents, and compatibilized polymer blends
US20030023181A1 (en) * 2001-07-26 2003-01-30 Mault James R. Gas analyzer of the fluorescent-film type particularly useful for respiratory analysis
US20030130567A1 (en) * 2002-01-09 2003-07-10 Mault James R. Health-related devices and methods
US20030130595A1 (en) * 2001-08-13 2003-07-10 Mault James R. Health improvement systems and methods
US20030105407A1 (en) * 2001-11-30 2003-06-05 Pearce, Edwin M. Disposable flow tube for respiratory gas analysis
WO2003084395A1 (en) * 2002-04-01 2003-10-16 Healthetech, Inc. System and method of determining an individualized drug administration dosage
USD478660S1 (en) 2002-07-01 2003-08-19 Healthetech, Inc. Disposable mask with sanitation insert for a respiratory analyzer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558693A (es) * 1952-08-30
NL275396A (es) * 1961-03-29
GB1001921A (en) * 1963-07-15 1965-08-18 It Resine Soc Process for polymerising saturated aldehydes
US3555514A (en) * 1966-12-09 1971-01-12 Hitachi Ltd Digital computer instruction sequencing to carry out digital differential analysis
US3592873A (en) * 1967-05-27 1971-07-13 Asahi Chemical Ind Polyoxymethylenes containing lactam-lactone interpolymers
FR1546427A (fr) * 1967-12-07 1968-11-15 Sir Soc Italiana Resine Spa Procédé de polymérisation de formaldéhyde

Also Published As

Publication number Publication date
JPS50100191A (es) 1975-08-08
FR2256188A1 (es) 1975-07-25
DE2461559A1 (de) 1975-07-10
IT1006689B (it) 1976-10-20
ES433412A1 (es) 1976-11-16
JPS5313477B2 (es) 1978-05-10
US3979480A (en) 1976-09-07
DE2461559C2 (de) 1984-08-16
FR2256188B1 (es) 1979-03-16

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