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JPS5512104A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5512104A
JPS5512104A JP8287878A JP8287878A JPS5512104A JP S5512104 A JPS5512104 A JP S5512104A JP 8287878 A JP8287878 A JP 8287878A JP 8287878 A JP8287878 A JP 8287878A JP S5512104 A JPS5512104 A JP S5512104A
Authority
JP
Japan
Prior art keywords
slurry
polyester
alkali metal
metal compound
pref
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
JP8287878A
Other languages
Japanese (ja)
Other versions
JPS6034964B2 (en
Inventor
Satoshi Hashimoto
Tetsuo Miki
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP8287878A priority Critical patent/JPS6034964B2/en
Publication of JPS5512104A publication Critical patent/JPS5512104A/en
Publication of JPS6034964B2 publication Critical patent/JPS6034964B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To suppress lowering of fluidity of a slurry of inorganic fillers, its processability and productivity even at a high concentraion, by adding an alkali metal compound to the glycol or water slurry containing inorganic fillers, and mixing the slurry to a polyester.
CONSTITUTION: (A) A polyester prepared from a dibasic carboxylic acid or its ester-forming derivative component consisting mainly of terephthalic acid, and one or more glycols or their ester-forming derivatives, is compounded with (B) a glycol or water slurry of a fine powdery inorganic filler (pref. aluminum oxide, etc. having an average particle size of ≤ 10μm) containing 0.01W5wt.% (on the basis of the filler) of an alkali metal compound (pref. hydroxides, etc.) at an optional stage in the production of the polyester. The effect of the alkali metal compound is remarkable when the concentration of the inorganic filler in the slurry is sufficiently high to cause the lowering of the fluidity of the slurry (usually 10W80wt%).
COPYRIGHT: (C)1980,JPO&Japio
JP8287878A 1978-07-10 1978-07-10 Polyester manufacturing method Expired JPS6034964B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8287878A JPS6034964B2 (en) 1978-07-10 1978-07-10 Polyester manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8287878A JPS6034964B2 (en) 1978-07-10 1978-07-10 Polyester manufacturing method

Publications (2)

Publication Number Publication Date
JPS5512104A true JPS5512104A (en) 1980-01-28
JPS6034964B2 JPS6034964B2 (en) 1985-08-12

Family

ID=13786534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8287878A Expired JPS6034964B2 (en) 1978-07-10 1978-07-10 Polyester manufacturing method

Country Status (1)

Country Link
JP (1) JPS6034964B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145727A (en) * 1982-02-23 1983-08-30 Teijin Ltd Production of polyester
JPS58177316A (en) * 1982-04-12 1983-10-18 Teijin Ltd Method of forming polyester film
JPS6071632A (en) * 1983-09-29 1985-04-23 Teijin Ltd Manufacture of polyester
JPH01234581A (en) * 1988-03-15 1989-09-19 Osaka Gas Co Ltd Method for preventing galvanic corrosion of underground metallic pipe and galvanic corrosion preventing structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145727A (en) * 1982-02-23 1983-08-30 Teijin Ltd Production of polyester
JPS58177316A (en) * 1982-04-12 1983-10-18 Teijin Ltd Method of forming polyester film
JPS6140538B2 (en) * 1982-04-12 1986-09-10 Teijin Ltd
JPS6071632A (en) * 1983-09-29 1985-04-23 Teijin Ltd Manufacture of polyester
JPH0314051B2 (en) * 1983-09-29 1991-02-25 Teijin Ltd
JPH01234581A (en) * 1988-03-15 1989-09-19 Osaka Gas Co Ltd Method for preventing galvanic corrosion of underground metallic pipe and galvanic corrosion preventing structure

Also Published As

Publication number Publication date
JPS6034964B2 (en) 1985-08-12

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