GB778410A - Process for producing synthetic linear condensation copolyesters - Google Patents

Process for producing synthetic linear condensation copolyesters

Info

Publication number
GB778410A
GB778410A GB13585/54A GB1358554A GB778410A GB 778410 A GB778410 A GB 778410A GB 13585/54 A GB13585/54 A GB 13585/54A GB 1358554 A GB1358554 A GB 1358554A GB 778410 A GB778410 A GB 778410A
Authority
GB
United Kingdom
Prior art keywords
acid
acids
copolyesters
ethylene carbonate
sebacic
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
GB13585/54A
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.)
Solutia Inc
Original Assignee
Chemstrand Corp
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
Priority claimed from US358985A external-priority patent/US2870124A/en
Application filed by Chemstrand Corp filed Critical Chemstrand Corp
Publication of GB778410A publication Critical patent/GB778410A/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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/40—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
    • C08G63/42—Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
    • 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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used

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)

Abstract

Linear copolyesters are made by heating at least two aliphatic or aromatic dibasic acids or a mixture of at least one aromatic and at least one aliphatic dibasic acid with an alkylene carbonate containing 2-8 carbon atoms in the alkylene group; 1-6 mols. of alkylene carbonate being used per mol. of dibasic acids. Part of the alkylene carbonate may be replaced by a polymethylene glycol having 2-10 methylene groups between the hydroxyl groups. Normally, the reaction mixture is heated at 80-300 DEG C. for 0.1-8 hours to effect solution and then heated from 80-300 DEG C. for 1-8 hours with a current of inert gas blowing therethrough. If only low molecular weight polyesters are required, a one-stage process may be used. Polyesterification catalysts, e.g. p-toluenesulphonic acid, camphorsulphonic acid, zinc acetate, zinc propionate, alkali metal hydroxides or alkaline earth metal alkoxides may be used. The copolyesters, depending upon their molecular weights, may be used in the manufacture of fibres, films, moulded articles or coating compositions. Specified aliphatic acids are oxalic, adipic, pimelic, suberic, azelaic, sebacic, succinic, malonic, bruxylic, thaspic, japanic, glutaric, methylsuccinic, methylmalonic and sym-dimethylsuccinic acids. Specified aromatic acids are terephthalic, o-phthalic, isophthalic, homophthalic, 4.41-diphenyldicarboxylic, naphthalene-1 : 5-dicarboxylic, p-carboxyphenoxyacetic, p - carboxyphenoxypropionic, p - carboxyphenoxybutyric, diphenic and p:p1 - (ethylenedioxy) - dibenzoic acid; also p:p1 - dicarboxydiphenylsulphone and p:p1 - dicarboxydiphenyl ether. In examples, copolyesters are prepared by reacting (1) ethylene carbonate, terephthalic acid and isophthalic acid; (2) and (3) ethylene carbonate, terephthalic acid and sebacic acid; (4) ethylene carbonate, adipic acid and sebacic acid; (5) ethylene carbonate, ethylene glycol, adipic acid and sebacic acid. Specification 707,913 is referred to.
GB13585/54A 1953-06-01 1954-05-10 Process for producing synthetic linear condensation copolyesters Expired GB778410A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1116121XA 1953-06-01 1953-06-01
US778410XA 1953-06-01 1953-06-01
US358985A US2870124A (en) 1953-06-01 1953-06-01 Process for producing synthetic linear condensation copolyesters using an alkylene carbonate

Publications (1)

Publication Number Publication Date
GB778410A true GB778410A (en) 1957-07-10

Family

ID=27373173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13585/54A Expired GB778410A (en) 1953-06-01 1954-05-10 Process for producing synthetic linear condensation copolyesters

Country Status (2)

Country Link
BE (1) BE529214A (en)
GB (1) GB778410A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020049A (en) * 1967-09-14 1977-04-26 The Goodyear Tire & Rubber Company Process for preparing polyester resin
DE3804820A1 (en) * 1988-02-12 1989-08-17 Dainippon Ink & Chemicals CYCLOCARBONATE-CONTAINING ESTERS AND METHOD FOR THE PRODUCTION THEREOF
DE4129752A1 (en) * 1991-09-04 1993-03-11 Dainippon Ink & Chemicals Substd. 2-keto-1,3-dioxolane(s) prodn - by reaction of low-mol.wt. 2-keto-1,3-dioxolane(s) with epoxide(s) in presence of basic catalyst at elevated temp.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020049A (en) * 1967-09-14 1977-04-26 The Goodyear Tire & Rubber Company Process for preparing polyester resin
DE3804820A1 (en) * 1988-02-12 1989-08-17 Dainippon Ink & Chemicals CYCLOCARBONATE-CONTAINING ESTERS AND METHOD FOR THE PRODUCTION THEREOF
DE4129752A1 (en) * 1991-09-04 1993-03-11 Dainippon Ink & Chemicals Substd. 2-keto-1,3-dioxolane(s) prodn - by reaction of low-mol.wt. 2-keto-1,3-dioxolane(s) with epoxide(s) in presence of basic catalyst at elevated temp.

Also Published As

Publication number Publication date
BE529214A (en)

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