JPS5450595A - Preform for polyester hollow article and its preparation - Google Patents
Preform for polyester hollow article and its preparationInfo
- 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
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
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)
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 |
-
1977
- 1977-09-30 JP JP11665277A patent/JPS5450595A/en active Pending
Cited By (7)
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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