AR021215A1 - Un metodo para preparar y purificar un acido polietilenglicolcarboxilico de bajo peso molecular - Google Patents

Un metodo para preparar y purificar un acido polietilenglicolcarboxilico de bajo peso molecular

Info

Publication number
AR021215A1
AR021215A1 ARP990104408A AR021215A1 AR 021215 A1 AR021215 A1 AR 021215A1 AR P990104408 A ARP990104408 A AR P990104408A AR 021215 A1 AR021215 A1 AR 021215A1
Authority
AR
Argentina
Prior art keywords
molecular weight
low molecular
weight polyethylene
preparing
glycolboboxyl
Prior art date
Application number
Other languages
English (en)
Original Assignee
Univ Utah Res Found
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 Univ Utah Res Found filed Critical Univ Utah Res Found
Publication of AR021215A1 publication Critical patent/AR021215A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/31—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Polyethers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)

Abstract

Un método para preparar ácidos polietilenglicolcarboxílico de bajo peso molecular que comprende hacer reaccionar polietilenglicoles de bajo peso molecularcon ésteres de ácidos alifáticos monosustituidos con un halogeno en una base, y saponificar luego los productos intermediarios resultantes. Luego, los ácidospolietilenglicolcarboxílico son extraidos con una fase orgánica que contiene tolueno para separar compuestos sin reaccionar y productos secundarios. Luego, losácidos polietilenglicolcarboxílicos extraidos son acidificados y purificados por diálisis, filtracion por gel, o precipitacion.
ARP990104408 1998-09-02 1999-09-02 Un metodo para preparar y purificar un acido polietilenglicolcarboxilico de bajo peso molecular AR021215A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9880298P 1998-09-02 1998-09-02

Publications (1)

Publication Number Publication Date
AR021215A1 true AR021215A1 (es) 2002-07-03

Family

ID=22270969

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990104408 AR021215A1 (es) 1998-09-02 1999-09-02 Un metodo para preparar y purificar un acido polietilenglicolcarboxilico de bajo peso molecular

Country Status (4)

Country Link
AR (1) AR021215A1 (es)
AU (1) AU6134699A (es)
TW (1) TW474912B (es)
WO (1) WO2000012458A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8026289B2 (en) 2008-10-21 2011-09-27 E.I. Du Pont De Nemours And Company Fluorinated polyoxyalkylene glycol diamide surfactants
EP2980115B1 (en) * 2013-03-27 2019-03-06 NOF Corporation Purification method for polyethylene glycol having a single amino group
JP6935059B2 (ja) * 2017-03-30 2021-09-15 日油株式会社 カルボキシル基を一つ有するポリエチレングリコールの精製方法
US10793762B2 (en) 2017-08-15 2020-10-06 Saudi Arabian Oil Company Layered double hydroxides for oil-based drilling fluids
EP3668940A1 (en) 2017-08-15 2020-06-24 Saudi Arabian Oil Company Thermally stable surfactants for oil based drilling fluids
US10647903B2 (en) 2017-08-15 2020-05-12 Saudi Arabian Oil Company Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers and amino amides as emulsifiers
US10676658B2 (en) 2017-08-15 2020-06-09 Saudi Arabian Oil Company Oil-based drilling fluids for high pressure and high temperature drilling operations
US10876039B2 (en) 2017-08-15 2020-12-29 Saudi Arabian Oil Company Thermally stable surfactants for oil based drilling fluids
US10640696B2 (en) 2017-08-15 2020-05-05 Saudi Arabian Oil Company Oil-based drilling fluids for high pressure and high temperature drilling operations
US10988659B2 (en) 2017-08-15 2021-04-27 Saudi Arabian Oil Company Layered double hydroxides for oil-based drilling fluids
US10745606B2 (en) 2017-08-15 2020-08-18 Saudi Arabian Oil Company Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers
CN113631631B (zh) 2019-03-29 2023-04-18 日油株式会社 含末端羧基的聚乙二醇的制备方法以及活化聚乙二醇的制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623900A (en) * 1948-09-01 1952-12-30 Sandoz Ag Method for the preparation of polyether acetic acids
FR2268006B1 (es) * 1974-04-17 1980-08-14 Huels Chemische Werke Ag

Also Published As

Publication number Publication date
AU6134699A (en) 2000-03-21
WO2000012458A1 (en) 2000-03-09
TW474912B (en) 2002-02-01

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