JPS5450595A - Preform for polyester hollow article and its preparation - Google Patents

Preform for polyester hollow article and its preparation

Info

Publication number
JPS5450595A
JPS5450595A JP11665277A JP11665277A JPS5450595A JP S5450595 A JPS5450595 A JP S5450595A JP 11665277 A JP11665277 A JP 11665277A JP 11665277 A JP11665277 A JP 11665277A JP S5450595 A JPS5450595 A JP S5450595A
Authority
JP
Japan
Prior art keywords
preform
polyester
preparation
density
intrinsic viscosity
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.)
Pending
Application number
JP11665277A
Other languages
Japanese (ja)
Inventor
Toru Matsubayashi
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 JP11665277A priority Critical patent/JPS5450595A/en
Publication of JPS5450595A publication Critical patent/JPS5450595A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare a preform giving a container having excellent appearance and drop impact resistance and a uniform section, by copolymerizing a specific amount of the third component and reducing the density of the preform.
CONSTITUTION: (1) A modified polyethylene terephthalate having an intrinsic viscosity of ≥0.55 is prepared by incorporating 0.5-5 mole % of the third comomomer, e.g. diethylene glycol, etc., to the polyester consisting of terephthalic acid and ethylene glycol. (2) The modified polyester is injection-molded at the temperature range (°C) expressed by the formula I and II-V ([η] is intrinsic viscosity; T is temperature of molten polymer), to give the polyester preform for the hollow articles, having a density of ≤1,35
COPYRIGHT: (C)1979,JPO&Japio
JP11665277A 1977-09-30 1977-09-30 Preform for polyester hollow article and its preparation Pending JPS5450595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11665277A JPS5450595A (en) 1977-09-30 1977-09-30 Preform for polyester hollow article and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11665277A JPS5450595A (en) 1977-09-30 1977-09-30 Preform for polyester hollow article and its preparation

Publications (1)

Publication Number Publication Date
JPS5450595A true JPS5450595A (en) 1979-04-20

Family

ID=14692524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11665277A Pending JPS5450595A (en) 1977-09-30 1977-09-30 Preform for polyester hollow article and its preparation

Country Status (1)

Country Link
JP (1) JPS5450595A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61278527A (en) * 1985-06-05 1986-12-09 Teijin Ltd Polyester bottle
EP0284426A2 (en) * 1987-03-26 1988-09-28 Mitsui Petrochemical Industries, Ltd. Polyethylene terephthalate and uses thereof
JPH0236257A (en) * 1988-07-26 1990-02-06 Kanebo Ltd Polyester resin composition and drawn material thereof
JPH0284429A (en) * 1988-09-20 1990-03-26 Teijin Ltd Packaging material made of polyester
JPH02150417A (en) * 1988-11-30 1990-06-08 Mitsui Petrochem Ind Ltd Polyethylene terephthalate and use thereof
US5256363A (en) * 1987-03-26 1993-10-26 Mitsui Petrochemical Industries, Ltd. Polyethylene terephthalate and uses thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61278527A (en) * 1985-06-05 1986-12-09 Teijin Ltd Polyester bottle
JPH0347176B2 (en) * 1985-06-05 1991-07-18 Teijin Ltd
EP0284426A2 (en) * 1987-03-26 1988-09-28 Mitsui Petrochemical Industries, Ltd. Polyethylene terephthalate and uses thereof
US5256363A (en) * 1987-03-26 1993-10-26 Mitsui Petrochemical Industries, Ltd. Polyethylene terephthalate and uses thereof
JPH0236257A (en) * 1988-07-26 1990-02-06 Kanebo Ltd Polyester resin composition and drawn material thereof
JPH0284429A (en) * 1988-09-20 1990-03-26 Teijin Ltd Packaging material made of polyester
JPH02150417A (en) * 1988-11-30 1990-06-08 Mitsui Petrochem Ind Ltd Polyethylene terephthalate and use thereof

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