JPS57149328A - Production of polyester - Google Patents

Production of polyester

Info

Publication number
JPS57149328A
JPS57149328A JP3315081A JP3315081A JPS57149328A JP S57149328 A JPS57149328 A JP S57149328A JP 3315081 A JP3315081 A JP 3315081A JP 3315081 A JP3315081 A JP 3315081A JP S57149328 A JPS57149328 A JP S57149328A
Authority
JP
Japan
Prior art keywords
compound
reaction
calcium
point
polycondensation
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
JP3315081A
Other languages
Japanese (ja)
Other versions
JPH0129810B2 (en
Inventor
Akio Odajima
Tomoaki Ueda
Hidesada Okasaka
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP3315081A priority Critical patent/JPS57149328A/en
Publication of JPS57149328A publication Critical patent/JPS57149328A/en
Publication of JPH0129810B2 publication Critical patent/JPH0129810B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a film-forming polyester excellent in slidability, opacity and surface appearance, by completing a polycondensation of terephthalic aicd with a glycol at a specified point of the reaction course in the presence of a lithium compound, a calcium compound and a phosphorus compound.
CONSTITUTION: In producing an ethylene terephthalate-based polyester by a transesterification or esterification reaction of terephthalic acid or its esterifiable derivative with a glycol, followed by a polycondensation reaction, the polycondensation reaction is brought to completion by adding a lithium compound, a calcium compound and a phorphorus compound in amounts satisfying relationshipsI, II and III, wherein Li, Ca and P are mol% of the lithium, calcium, and phosphorus compounds, respectively, at a point between the start of the esterification or transesterification reaction and a point at which the polycondensation reaction proceeds to an intrinsic viscosity ≤0.2.
COPYRIGHT: (C)1982,JPO&Japio
JP3315081A 1981-03-10 1981-03-10 Production of polyester Granted JPS57149328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3315081A JPS57149328A (en) 1981-03-10 1981-03-10 Production of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3315081A JPS57149328A (en) 1981-03-10 1981-03-10 Production of polyester

Publications (2)

Publication Number Publication Date
JPS57149328A true JPS57149328A (en) 1982-09-14
JPH0129810B2 JPH0129810B2 (en) 1989-06-14

Family

ID=12378544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3315081A Granted JPS57149328A (en) 1981-03-10 1981-03-10 Production of polyester

Country Status (1)

Country Link
JP (1) JPS57149328A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604027A (en) * 1983-06-23 1985-01-10 Unitika Ltd Polyester film
JPH03181549A (en) * 1989-12-11 1991-08-07 Toray Ind Inc Polyester composition for insulation film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50101494A (en) * 1974-01-14 1975-08-12
JPS51112860A (en) * 1975-03-31 1976-10-05 Toray Ind Inc Polyesten composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50101494A (en) * 1974-01-14 1975-08-12
JPS51112860A (en) * 1975-03-31 1976-10-05 Toray Ind Inc Polyesten composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604027A (en) * 1983-06-23 1985-01-10 Unitika Ltd Polyester film
JPH03181549A (en) * 1989-12-11 1991-08-07 Toray Ind Inc Polyester composition for insulation film

Also Published As

Publication number Publication date
JPH0129810B2 (en) 1989-06-14

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