GB1431681A - Process for production of polyesters - Google Patents

Process for production of polyesters

Info

Publication number
GB1431681A
GB1431681A GB3637373A GB3637373A GB1431681A GB 1431681 A GB1431681 A GB 1431681A GB 3637373 A GB3637373 A GB 3637373A GB 3637373 A GB3637373 A GB 3637373A GB 1431681 A GB1431681 A GB 1431681A
Authority
GB
United Kingdom
Prior art keywords
polyethylene terephthalate
pressure
ethylene glycol
produced
esterification
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
GB3637373A
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Publication of GB1431681A publication Critical patent/GB1431681A/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
    • C08G63/78—Preparation processes

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

1431681 Preparing polyethylene terephthalate TOYO BOSEKI KK [trading as TOYOBO CO Ltd] 31 July 1973 [26 Jan 1973] 36373/73 Heading C3R A process for preparing polyethylene terephthalate comprises directly esterifying 70 to 95% of the acid groups of terephthalic acid with ethylene glycol under superatmospheric pressure at 220‹ to 280‹ C. while eliminating water by-produced in the esterification reaction, substantially eliminating unreacted ethylene glycol and any diethylene glycol produced as a by-product from the esterification product under subatmospheric pressure at 150‹ to 220‹ C., and effecting polycondensation of the esterification product under substmospheric pressure and at elevated temperature to give polyethylene terephthalate.
GB3637373A 1973-01-26 1973-07-31 Process for production of polyesters Expired GB1431681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1133773A JPS4999697A (en) 1973-01-26 1973-01-26

Publications (1)

Publication Number Publication Date
GB1431681A true GB1431681A (en) 1976-04-14

Family

ID=11775205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3637373A Expired GB1431681A (en) 1973-01-26 1973-07-31 Process for production of polyesters

Country Status (5)

Country Link
JP (1) JPS4999697A (en)
DE (1) DE2338824A1 (en)
FR (1) FR2215437B1 (en)
GB (1) GB1431681A (en)
NL (1) NL7310610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137805A1 (en) 2014-03-11 2015-09-17 Furanix Technologies B.V. Polyester and method for preparing such a polyester

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346213A (en) * 1980-08-25 1982-08-24 Celanese Corporation Process for the preparation of polybutylene terephthalate
DE3544551C2 (en) * 1985-12-17 2002-02-28 Zimmer Ag Process for the continuous production of high molecular weight polybutylene terephthalate
US5015759A (en) * 1989-12-08 1991-05-14 E. I. Du Pont De Nemours And Company Process for increasing the direct esterification reaction rate of a diacid with a glycol

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB932244A (en) * 1958-11-18 1963-07-24 Monsanto Chemicals Preparation of polyethylene terephthalate from terephthalic acid and ethylene glycol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137805A1 (en) 2014-03-11 2015-09-17 Furanix Technologies B.V. Polyester and method for preparing such a polyester
EP3116932B1 (en) 2014-03-11 2018-05-09 Synvina C.V. Polyester and method for preparing such a polyester

Also Published As

Publication number Publication date
DE2338824A1 (en) 1974-08-01
NL7310610A (en) 1974-07-30
FR2215437B1 (en) 1978-08-04
FR2215437A1 (en) 1974-08-23
JPS4999697A (en) 1974-09-20

Similar Documents

Publication Publication Date Title
IE42166L (en) Linear polyesters
GB1380266A (en) Process for the semi-continuous preparation of high-molecular weight linear polyesters
GB1145634A (en) Process for the continuous preparation of polyesters
GB1447146A (en) Preparation of polyalkylene terephthalates
GB1142770A (en) Copolyester resin
GB1431681A (en) Process for production of polyesters
ES387983A1 (en) Process for the preparation of dimethyl terephthalate
ES275323A1 (en) Polyester production using a guanidine catalyst
GB1106206A (en) Improvements in or relating to reactors for performing continuous liquid phase reactions
GB1464485A (en) Process for producing polyesters
GB1408150A (en) Process for preparing polyesters
GB1285904A (en) Catalytic process for the production of polyesters
GB1527850A (en) Process for the production of high molecular weight polyester
GB1224704A (en) Process of preparing polyester resins
GB775316A (en) Polyglycol terephthalates and isophthalates
GB1417671A (en) Method for preparing pigmented polyethylene terephthalate
GB1208912A (en) Production of polyesterethers
GB791790A (en) Production of polyethylene terephthalate
GB1445034A (en) Continuous production of polyesters
GB1005996A (en) Process for the production of optically brightened polyesters of terephthalic acid
GB1466591A (en) Production of terephthalate polyesters
GB1402288A (en) Preparation of polyesters
ES444295A1 (en) Process for preparing polyesters
GB1218509A (en) Process for the production of acetoacetic acid esters
GB1224843A (en) Process for the production of polyesters

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930730