GB857378A - A process for the production of linear polyoxalates - Google Patents

A process for the production of linear polyoxalates

Info

Publication number
GB857378A
GB857378A GB3911/60A GB391160A GB857378A GB 857378 A GB857378 A GB 857378A GB 3911/60 A GB3911/60 A GB 3911/60A GB 391160 A GB391160 A GB 391160A GB 857378 A GB857378 A GB 857378A
Authority
GB
United Kingdom
Prior art keywords
polyoxalates
linear
dihydroxynaphthalene
reaction
bis
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
GB3911/60A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB857378A publication Critical patent/GB857378A/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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
    • C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
    • C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/6826—Dicarboxylic acids and dihydroxy compounds
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672—Dicarboxylic acids and dihydroxy compounds
    • 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
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/16—Aliphatic-aromatic or araliphatic polycarbonates
    • C08G64/1608—Aliphatic-aromatic or araliphatic polycarbonates saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Linear polyoxalates, suitable for the manufacture of filaments, are made by heating an aliphatic, cycloaliphatic or aromatic diester of oxalic acid with a bis-b -hydroxyethyl ether of an aromatic dihydroxy compound, which dihydroxy compound has a melting point of at least 232 DEG C. Specified bis-b -hydroxyethyl ethers are those of 4-41-dihydroxydiphenyl, 1, 5-dihydroxynaphthalene and 2, 3, 5, 6-tetrachlorohydroquinone and they may be used in admixture with other dihydroxy compounds, such as resorcinol, pyrocatechol, 1,4-dihydroxynaphthalene, o-, m- or p-hydroxybenzyl alcohol, ethylene glycol, butanediol-1: 4, quinital and o-, m-, and p-xylylene glycol. Reaction may be effected in the presence of a basic trans-esterification catalyst (many specified) which may be neutralised at the end of the reaction by a volatile base-fixing substance (e.g. dimethyl sulphate).
GB3911/60A 1956-11-20 1957-11-14 A process for the production of linear polyoxalates Expired GB857378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE857378X 1956-11-20

Publications (1)

Publication Number Publication Date
GB857378A true GB857378A (en) 1960-12-29

Family

ID=6789557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3911/60A Expired GB857378A (en) 1956-11-20 1957-11-14 A process for the production of linear polyoxalates

Country Status (4)

Country Link
BE (1) BE562165A (en)
DE (1) DE1050544B (en)
FR (1) FR1185780A (en)
GB (1) GB857378A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE591170A (en) * 1959-05-25

Also Published As

Publication number Publication date
DE1050544B (en) 1959-02-12
BE562165A (en)
FR1185780A (en) 1959-08-05

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