[go: up one dir, main page]

FR2231700A1 - Polyethylene terephthalate prodn. - by direct esterification of terephthalic acid with monoethylene glycol - Google Patents

Polyethylene terephthalate prodn. - by direct esterification of terephthalic acid with monoethylene glycol

Info

Publication number
FR2231700A1
FR2231700A1 FR7416525A FR7416525A FR2231700A1 FR 2231700 A1 FR2231700 A1 FR 2231700A1 FR 7416525 A FR7416525 A FR 7416525A FR 7416525 A FR7416525 A FR 7416525A FR 2231700 A1 FR2231700 A1 FR 2231700A1
Authority
FR
France
Prior art keywords
terephthalic acid
direct esterification
prodn
monoethylene glycol
polyethylene terephthalate
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.)
Granted
Application number
FR7416525A
Other languages
French (fr)
Other versions
FR2231700B3 (en
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.)
Rhone Poulenc Textile SA
Original Assignee
Rhone Poulenc Textile SA
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 Rhone Poulenc Textile SA filed Critical Rhone Poulenc Textile SA
Publication of FR2231700A1 publication Critical patent/FR2231700A1/en
Application granted granted Critical
Publication of FR2231700B3 publication Critical patent/FR2231700B3/fr
Granted 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
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The process is carried out discontinuously e.g. at 230-270 degrees C, pref. in the presence of an inhibitor for the formation of diethyleneglycol, such as a triethanolamine deriv. e.g. Ti aminotriethanolate. The pressure is reduced during the reaction e.g. from 6 kg/cm2 abs to 1 kg/cm2 abs to eliminate the water formed. Process offers a simple means for direct esterification of terephthalic acid with monoethylene glycol without the necessity for using large excesses of the glycol.
FR7416525A 1973-06-01 1974-05-10 Polyethylene terephthalate prodn. - by direct esterification of terephthalic acid with monoethylene glycol Granted FR2231700A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR411373A BR7304113D0 (en) 1973-06-01 1973-06-01 PROCESS OF DIRECT STERIFICATION OF PURE TEREFTALIC ACID FOR DISCONTINUED POLYETHYLENE TEREFTALATE PRODUCTION

Publications (2)

Publication Number Publication Date
FR2231700A1 true FR2231700A1 (en) 1974-12-27
FR2231700B3 FR2231700B3 (en) 1977-03-11

Family

ID=3934729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416525A Granted FR2231700A1 (en) 1973-06-01 1974-05-10 Polyethylene terephthalate prodn. - by direct esterification of terephthalic acid with monoethylene glycol

Country Status (2)

Country Link
BR (1) BR7304113D0 (en)
FR (1) FR2231700A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051038A1 (en) * 1980-10-27 1982-05-05 The Goodyear Tire & Rubber Company Green colored polyester
WO2003046044A1 (en) * 2001-11-28 2003-06-05 Zimmer Aktiengesellschaft Method for the production of a prepolymer of polyester or co-polyester
WO2022146325A1 (en) * 2020-12-30 2022-07-07 Erciyes Universitesi A production method for polyethylene terephthalate (pet) comprising use of polymethylmethacrylate (pmma) in order to reduce the amount of acetaldehyde, carboxylic end group and diethylene glycol generated in the industrial use of polyethylene terephthalate (pet)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051038A1 (en) * 1980-10-27 1982-05-05 The Goodyear Tire & Rubber Company Green colored polyester
WO2003046044A1 (en) * 2001-11-28 2003-06-05 Zimmer Aktiengesellschaft Method for the production of a prepolymer of polyester or co-polyester
WO2022146325A1 (en) * 2020-12-30 2022-07-07 Erciyes Universitesi A production method for polyethylene terephthalate (pet) comprising use of polymethylmethacrylate (pmma) in order to reduce the amount of acetaldehyde, carboxylic end group and diethylene glycol generated in the industrial use of polyethylene terephthalate (pet)

Also Published As

Publication number Publication date
BR7304113D0 (en) 1974-12-31
FR2231700B3 (en) 1977-03-11

Similar Documents

Publication Publication Date Title
SE7710696L (en) INTERMEDIATE PRODUCT FOR THE MANUFACTURE OF ALFA-L-ASPARTYL-L-PHENYLA LANINAL CHYLES
ES420960A1 (en) Process for the continuous preparation of unsaturated polyesters
GB1145634A (en) Process for the continuous preparation of polyesters
FR2168990A1 (en) Bis-(beta-hydroxyethyl) terephthalate oligomers prodn - by continuous reaction in stirred still and flow tube
FR2231700A1 (en) Polyethylene terephthalate prodn. - by direct esterification of terephthalic acid with monoethylene glycol
FR2001611A1 (en) Preparation of beta substituted propionaldehydes by - carbon dioxide catalysed addition of water or alcohol
ES387983A1 (en) Process for the preparation of dimethyl terephthalate
ES417790A1 (en) Process for the preparation of dimethyl terephthalate
GB1106206A (en) Improvements in or relating to reactors for performing continuous liquid phase reactions
IE39203B1 (en) Formic acid synthesis by alkyl formate hydrolysis
GB1300833A (en) Production of ethylene glycol
GB1423495A (en) Oligocarboxyalkane-phosphonic acids and process for makiing them
JPS5283424A (en) Esterification process
FR2103014A5 (en)
ES430491A1 (en) Process for the production of unsaturated polyester resins
FR2135729A5 (en) Lower aliphatic acids - prepd and separated by a process allowing recycling of catalyst
JPS51136640A (en) Process for continuous preparation of high purity terephthalic acid
FR2089553A5 (en) Terephthalic acid esterification
FR2078435A5 (en) Solid phase peptide synthesis
SU397500A1 (en) FUND OF EXPERTS
GB1418894A (en) Epoxy resin curing agents
NL6917064A (en) Carboxylic acid prodn
GB795782A (en) Manufacture of highly polymeric polymethylene terephthalates
NL7200516A (en) Bis-(beta-hydroxyethyl) terephthalate oligomers prodn - by continuous reaction in stirred still and flow tube
FR2243178A1 (en) Oligoesters of oxalic acid - by reacting oxalic acid with polyols with continuous removal of water vapour without azeotrope formation

Legal Events

Date Code Title Description
ST Notification of lapse