BE570884A - - Google Patents

Info

Publication number
BE570884A
BE570884A BE570884DA BE570884A BE 570884 A BE570884 A BE 570884A BE 570884D A BE570884D A BE 570884DA BE 570884 A BE570884 A BE 570884A
Authority
BE
Belgium
Application number
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.)
Publication date
Publication of BE570884A publication Critical patent/BE570884A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08Polymerisation of formaldehyde
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/12Polymerisation of acetaldehyde or cyclic oligomers thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/14Polymerisation of single aldehydes not provided for in groups C08G2/08 - C08G2/12
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/16Polymerisation of single ketones
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/30Chemical modification by after-treatment
    • C08G2/32Chemical modification by after-treatment by esterification
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/30Chemical modification by after-treatment
    • C08G2/34Chemical modification by after-treatment by etherification
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/40Monitoring; Testing of relay systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/40Monitoring; Testing of relay systems
    • H04B17/401Monitoring; Testing of relay systems with selective localization
    • H04B17/402Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/404Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S74/00Machine element or mechanism
    • Y10S74/10Polymer digest - plastic gears

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
BE570884D 1957-09-06 BE570884A (US06174465-20010116-C00003.png)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US682325A US3161616A (en) 1957-09-06 1957-09-06 Polyoxymethylene diethers
US700339A US3000861A (en) 1957-09-06 1957-12-03 Polymerization of aqueous formaldehyde to produce high molecular weight polyoxymethylene
US700338A US3000860A (en) 1957-09-06 1957-12-03 Polymerization of alcohol solutions of formaldehyde to produce high molecular weight polyoxymethylene

Publications (1)

Publication Number Publication Date
BE570884A true BE570884A (US06174465-20010116-C00003.png) 1900-01-01

Family

ID=27418401

Family Applications (3)

Application Number Title Priority Date Filing Date
BE570884D BE570884A (US06174465-20010116-C00003.png) 1957-09-06
BE571016D BE571016A (US06174465-20010116-C00003.png) 1957-09-06
BE652711D BE652711A (US06174465-20010116-C00003.png) 1957-09-06

Family Applications After (2)

Application Number Title Priority Date Filing Date
BE571016D BE571016A (US06174465-20010116-C00003.png) 1957-09-06
BE652711D BE652711A (US06174465-20010116-C00003.png) 1957-09-06

Country Status (7)

Country Link
US (4) US3161616A (US06174465-20010116-C00003.png)
BE (3) BE652711A (US06174465-20010116-C00003.png)
CH (2) CH432844A (US06174465-20010116-C00003.png)
DE (5) DE1290713B (US06174465-20010116-C00003.png)
FR (2) FR1226434A (US06174465-20010116-C00003.png)
GB (2) GB884707A (US06174465-20010116-C00003.png)
NL (7) NL6413807A (US06174465-20010116-C00003.png)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570884A (US06174465-20010116-C00003.png) * 1957-09-06 1900-01-01
NL263823A (US06174465-20010116-C00003.png) * 1960-04-21
US3248271A (en) * 1961-05-08 1966-04-26 Celanese Corp Shaped oxymethylene thermoplastic polymer and method of surface treating same
NL278284A (US06174465-20010116-C00003.png) * 1961-05-12
NL277628A (US06174465-20010116-C00003.png) * 1961-05-12
US3193532A (en) * 1961-08-25 1965-07-06 Tenneco Chem Production of high molecular weight polymers of formaldehyde
BE626151A (US06174465-20010116-C00003.png) * 1961-12-14
US3160950A (en) * 1962-01-17 1964-12-15 Jr William J O'sullivan Method and apparatus for shock protection
NL295525A (US06174465-20010116-C00003.png) * 1962-07-27
US3236810A (en) * 1962-08-14 1966-02-22 Du Pont Process for modifying the molecular weight of polyoxymethylene
NL302397A (US06174465-20010116-C00003.png) * 1963-01-29
NL6400051A (US06174465-20010116-C00003.png) * 1963-01-31 1964-08-03
US3269988A (en) * 1963-03-13 1966-08-30 Grace W R & Co Chemical process for polymerizing trioxane
NL143599B (nl) * 1964-04-13 1974-10-15 Montedison Spa Werkwijze voor het bereiden van macromoleculaire, volledig kristallijne polyoxymethylenen.
US3378527A (en) * 1966-09-08 1968-04-16 Leslie C. Case Ester ether-acetal copolymers and process of preparing same
US3998791A (en) * 1973-06-15 1976-12-21 Societa' Italiana Resine S.I.R. S.P.A. Process for the stabilization of polyacetal reins
DE2436373C3 (de) * 1974-07-27 1983-02-24 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Fehlerortungsverfahren für Vierdraht-Trägerfrequenzsysteme
US5852208A (en) * 1996-08-30 1998-12-22 Dixie Chemical Company, Inc. Method of producing compounds containing acyloxyalkoxy groups from alcohols
US7812110B2 (en) * 2005-12-24 2010-10-12 Ticona Gmbh Process for preparation of oxymethylene polymers, selected polymers, and their use
DE102005062327A1 (de) 2005-12-24 2007-06-28 Ticona Gmbh Verfahren zur Herstellung von Oxymethylen-Polymeren in homogener Phase und Verwendung
US7943726B2 (en) * 2005-12-24 2011-05-17 Ticona Gmbh Process for preparation of oxymethylene polymers in a homogeneous phase, and use
DE102008018966A1 (de) * 2008-04-16 2009-10-22 Ticona Gmbh Verfahren zur Herstellung von Oxymethylen-Polymeren und dafür geeignete Vorrichtung
DE102008018968A1 (de) * 2008-04-16 2009-10-22 Ticona Gmbh Polyoxymethylen-Formmassen und Formkörper und deren Verwendung
DE102008018967A1 (de) * 2008-04-16 2009-10-22 Ticona Gmbh Oxymethylenpolymere, Verfahren zu deren Herstellung und deren Verwendung
DE102008018965A1 (de) 2008-04-16 2009-10-22 Ticona Gmbh Oxymethylen-Copolymere und deren Verwendung sowie Verfahren zur Herstellung von Oxymethylen-Copolymeren
US8840976B2 (en) 2010-10-14 2014-09-23 Ticona Llc VOC or compressed gas containment device made from a polyoxymethylene polymer
EP2505609B1 (en) 2011-04-01 2015-01-21 Ticona GmbH High impact resistant polyoxymethylene for extrusion blow molding
US8968858B2 (en) 2011-12-30 2015-03-03 Ticona Llc Printable molded articles made from a polyoxymethylene polymer composition
EP2938674A1 (en) 2012-12-27 2015-11-04 Ticona LLC Impact modified polyoxymethylene composition and articles made therefrom that are stable when exposed to ultraviolet light
EP3856808A1 (en) * 2018-09-28 2021-08-04 Celanese International Corporation Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
CN115267020A (zh) * 2022-07-25 2022-11-01 开封龙宇化工有限公司 一种气相色谱检测甲醛溶液中甲醇浓度的方法

Family Cites Families (8)

* 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
US2519550A (en) * 1948-11-08 1950-08-22 Du Pont Formaldehyde polymers
US2768994A (en) * 1952-08-30 1956-10-30 Du Pont Polyoxymethylenes
NL196512A (US06174465-20010116-C00003.png) * 1954-04-16
US2998409A (en) * 1954-04-16 1961-08-29 Du Pont Polyoxymethylene carboxylates of improved thermal stability
GB793673A (en) * 1955-07-13 1958-04-23 Du Pont Improvements in or relating to the preparation of high molecular weight addition polymers of formaldehyde
BE559799A (US06174465-20010116-C00003.png) * 1956-08-02
BE570884A (US06174465-20010116-C00003.png) * 1957-09-06 1900-01-01

Also Published As

Publication number Publication date
CH411352A (de) 1966-04-15
US3161616A (en) 1964-12-15
US3340234A (en) 1967-09-05
DE1249510B (US06174465-20010116-C00003.png) 1967-09-07
NL111381C (US06174465-20010116-C00003.png) 1900-01-01
CH432844A (de) 1967-03-31
DE1290713B (de) 1969-03-13
DE1188120B (de) 1965-03-04
DE1182824B (de) 1964-12-03
GB868365A (en) 1961-05-17
FR1227223A (fr) 1960-08-19
GB884707A (en) 1961-12-13
NL6413807A (US06174465-20010116-C00003.png) 1965-02-25
US3000861A (en) 1961-09-19
BE571016A (US06174465-20010116-C00003.png) 1900-01-01
NL6814679A (US06174465-20010116-C00003.png) 1968-12-27
DE1301906B (de) 1969-08-28
US3000860A (en) 1961-09-19
FR1226434A (fr) 1960-07-11
NL126411C (US06174465-20010116-C00003.png) 1900-01-01
NL110821C (US06174465-20010116-C00003.png) 1900-01-01
NL231167A (US06174465-20010116-C00003.png) 1900-01-01
BE652711A (US06174465-20010116-C00003.png) 1900-01-01
NL231170A (US06174465-20010116-C00003.png) 1900-01-01

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