ES399844A1 - Polyether purification process - Google Patents

Polyether purification process

Info

Publication number
ES399844A1
ES399844A1 ES399844A ES399844A ES399844A1 ES 399844 A1 ES399844 A1 ES 399844A1 ES 399844 A ES399844 A ES 399844A ES 399844 A ES399844 A ES 399844A ES 399844 A1 ES399844 A1 ES 399844A1
Authority
ES
Spain
Prior art keywords
purification process
polyether
polyether purification
polyesters
contaminated
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
ES399844A
Other languages
Spanish (es)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES399844A1 publication Critical patent/ES399844A1/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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying

Abstract

Procedure for the purification of polyesters contaminated with basic inorganic materials, characterized in that it comprises treating the polyester, in the presence of water, with a compound containing at least one carboxylic acid group and at least two hydroxyl groups. (Machine-translation by Google Translate, not legally binding)
ES399844A 1971-02-16 1972-02-16 Polyether purification process Expired ES399844A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB472271A GB1377486A (en) 1971-02-16 1971-02-16 Polyether purification process

Publications (1)

Publication Number Publication Date
ES399844A1 true ES399844A1 (en) 1975-04-01

Family

ID=9782557

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399844A Expired ES399844A1 (en) 1971-02-16 1972-02-16 Polyether purification process

Country Status (5)

Country Link
AU (1) AU3887772A (en)
ES (1) ES399844A1 (en)
GB (1) GB1377486A (en)
IT (1) IT961142B (en)
NL (1) NL7201819A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110268A (en) * 1976-09-27 1978-08-29 Witco Chemical Corporation Polyether polyols and polyurethane foams made therefrom
US4490560A (en) * 1982-09-29 1984-12-25 The B. F. Goodrich Company Decolorizing polymers of epihalohydrin
CS241409B1 (en) * 1983-01-21 1986-03-13 Ladislav Komora Method of water/soluble polyerthers' and/or copolyethers' refining or at least limitation
US5248833A (en) * 1992-09-22 1993-09-28 Arco Chemical Technology, L.P. Process for purifying polyols made with double metal cyanide catalysts

Also Published As

Publication number Publication date
AU3887772A (en) 1973-08-16
GB1377486A (en) 1974-12-18
NL7201819A (en) 1972-08-18
IT961142B (en) 1973-12-10

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