GB755447A - Process for the production of polyesters from six-membered cyclic esters - Google Patents

Process for the production of polyesters from six-membered cyclic esters

Info

Publication number
GB755447A
GB755447A GB746654A GB746654A GB755447A GB 755447 A GB755447 A GB 755447A GB 746654 A GB746654 A GB 746654A GB 746654 A GB746654 A GB 746654A GB 755447 A GB755447 A GB 755447A
Authority
GB
United Kingdom
Prior art keywords
polymerized
heating
lactide
effected
glycolide
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
GB746654A
Inventor
Hans-Henning Kleine
Original Assignee
Johannes Kleine
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 Johannes Kleine filed Critical Johannes Kleine
Priority to GB746654A priority Critical patent/GB755447A/en
Publication of GB755447A publication Critical patent/GB755447A/en
Expired legal-status Critical Current

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
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • C08G63/82Preparation processes characterised by the catalyst used
    • C08G63/823Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
    • 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
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08Lactones or lactides

Abstract

A six-membered cyclic ester is polymerized in presence of a catalyst which is a metal of the 2nd main or sub-group or the 4th group of the periodic system or an alcoholate, oxide, hydroxide or a weak acid salt of such a metal (e.g. a phosphate, carbonate, acetate or lactate). Specified esters are lactide, glycolide, deltavalerolactone, trimethylene carbonate, ethylene oxalate and trimethyl-l-arabonic acid lactone. Polymerization is effected at 130 DEG -200 DEG C. by a batch or continuous process and may be effected in presence of a solvent, e.g. benzene or toluene, a chain-breaker, e.g. benzoic acid or water. Polymerization may be effected on surfaces to be coated. Pigments, plasticizers, solvents, &c., may be added to the polyesters. In examples (1) and (3) glycolide is polymerized by heating in presence of metallic mercury or lead acetate. Triphenyl phosphite may be added to the resultant polyester and further heating effected. (2), (4), (5), (6) Lactide is polymerized by heating in presence of zinc dust, zinc oxide, lead oxide or zinc carbonate and in Example (5) in presence of benzoic acid, (7) and (8). A mixture of glycolide and lactide is polymerized by heating in presence of lead oxide. (9) Lactide is polymerized by heating in presence of lead oxide and benzene.
GB746654A 1954-03-15 1954-03-15 Process for the production of polyesters from six-membered cyclic esters Expired GB755447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB746654A GB755447A (en) 1954-03-15 1954-03-15 Process for the production of polyesters from six-membered cyclic esters

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEK12307A DE975191C (en) 1951-12-02 1951-12-02 Process for the preparation of polyesters from 6-membered cyclic esters
NL185702A NL96205C (en) 1954-03-15 1954-03-08
GB746654A GB755447A (en) 1954-03-15 1954-03-15 Process for the production of polyesters from six-membered cyclic esters
FR1115278D FR1115278A (en) 1954-03-15 1954-12-08 Process for preparing polyesters from six-membered cyclic esters
BE533965D BE533965A (en) 1954-03-15 1954-12-08

Publications (1)

Publication Number Publication Date
GB755447A true GB755447A (en) 1956-08-22

Family

ID=9833631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB746654A Expired GB755447A (en) 1954-03-15 1954-03-15 Process for the production of polyesters from six-membered cyclic esters

Country Status (5)

Country Link
BE (1) BE533965A (en)
DE (1) DE975191C (en)
FR (1) FR1115278A (en)
GB (1) GB755447A (en)
NL (1) NL96205C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839297A (en) * 1971-11-22 1974-10-01 Ethicon Inc Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures
US4071507A (en) * 1970-01-29 1978-01-31 Stamicarbon, N.V. Preparation of lactone polyesters
US5180765A (en) * 1988-08-08 1993-01-19 Biopak Technology, Ltd. Biodegradable packaging thermoplastics from lactides
US5424346A (en) * 1988-08-08 1995-06-13 Ecopol, Llc Biodegradable replacement of crystal polystyrene
US5444113A (en) * 1988-08-08 1995-08-22 Ecopol, Llc End use applications of biodegradable polymers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556559A (en) * 1956-04-13
IT570045A (en) * 1956-04-13
BE556561A (en) * 1956-04-13
IT570056A (en) * 1956-04-13
DE1167024B (en) * 1956-10-05 1964-04-02 Pittsburgh Plate Glass Co Process for the production of polycarbonates

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995291A (en) * 1929-11-12 1935-03-26 Du Pont Alkylene carbonate and process of making it
US2465319A (en) * 1941-07-29 1949-03-22 Du Pont Polymeric linear terephthalic esters
US2471023A (en) * 1945-12-11 1949-05-24 Ici Ltd Highly polymeric linear esters
US2534028A (en) * 1948-05-13 1950-12-12 Du Pont Production of polyethylene terephthalate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071507A (en) * 1970-01-29 1978-01-31 Stamicarbon, N.V. Preparation of lactone polyesters
US3839297A (en) * 1971-11-22 1974-10-01 Ethicon Inc Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures
US5180765A (en) * 1988-08-08 1993-01-19 Biopak Technology, Ltd. Biodegradable packaging thermoplastics from lactides
US5424346A (en) * 1988-08-08 1995-06-13 Ecopol, Llc Biodegradable replacement of crystal polystyrene
US5444113A (en) * 1988-08-08 1995-08-22 Ecopol, Llc End use applications of biodegradable polymers
US5760118A (en) * 1988-08-08 1998-06-02 Chronopol, Inc. End use applications of biodegradable polymers

Also Published As

Publication number Publication date
FR1115278A (en) 1956-04-23
NL96205C (en) 1960-12-15
DE975191C (en) 1961-09-21
BE533965A (en) 1958-06-20

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