CA2122282A1 - Method for Injection Molding Polyethylene Terephthalate - Google Patents

Method for Injection Molding Polyethylene Terephthalate

Info

Publication number
CA2122282A1
CA2122282A1 CA 2122282 CA2122282A CA2122282A1 CA 2122282 A1 CA2122282 A1 CA 2122282A1 CA 2122282 CA2122282 CA 2122282 CA 2122282 A CA2122282 A CA 2122282A CA 2122282 A1 CA2122282 A1 CA 2122282A1
Authority
CA
Canada
Prior art keywords
polyethylene terephthalate
injection molding
preform
molding polyethylene
unit
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
CA 2122282
Other languages
French (fr)
Other versions
CA2122282C (en
Inventor
Hideaki Koda
Hisashi Nakajima
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.)
Aoki Technical Laboratory Inc
Original Assignee
Aoki Technical Laboratory 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 Aoki Technical Laboratory Inc filed Critical Aoki Technical Laboratory Inc
Publication of CA2122282A1 publication Critical patent/CA2122282A1/en
Application granted granted Critical
Publication of CA2122282C publication Critical patent/CA2122282C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

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

Abstract

A method for injection molding polyethylene terephthalate by employing a vent type injection unit as means for omitting preliminary drying the resin, wherein the unit does not develop a poor screw biting, and even when a molding material is an undried uncrystallized or crystallized PET, can feed a certain amount of the material at all times to injection mold a desired transparent molded form such as a preform, and use the preform to produce a thin-wall container with a low cost.
CA 2122282 1993-04-30 1994-04-27 Method for injection molding polyethylene terephthalate Expired - Fee Related CA2122282C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12843693A JP3289991B2 (en) 1993-04-30 1993-04-30 Molding method of preform and hollow molded article using amorphous or recycled polyethylene terephthalate
JP5-128436 1993-04-30

Publications (2)

Publication Number Publication Date
CA2122282A1 true CA2122282A1 (en) 1994-10-31
CA2122282C CA2122282C (en) 1998-02-24

Family

ID=14984699

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2122282 Expired - Fee Related CA2122282C (en) 1993-04-30 1994-04-27 Method for injection molding polyethylene terephthalate

Country Status (4)

Country Link
JP (1) JP3289991B2 (en)
BR (1) BR9401024A (en)
CA (1) CA2122282C (en)
ZA (1) ZA942844B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3573380B2 (en) * 1995-08-14 2004-10-06 株式会社青木固研究所 Preform injection molding method and stretch blow molding method for polyester resin
JPH0994824A (en) * 1995-09-29 1997-04-08 Aokiko Kenkyusho:Kk Injection molding method for polyethylene terephthalate
US6187229B1 (en) 1995-11-10 2001-02-13 Nissei Plastic Industrial Co., Ltd. Process for injection molding information recording disks
ES2293861B1 (en) * 2007-10-04 2009-04-01 Plasticos Hidrosolubles, S.L. PROCEDURE FOR INJECTION OF POLYETHENOL PARTS.
JP6297403B2 (en) * 2014-05-09 2018-03-20 日本合成化学工業株式会社 Manufacturing method of polyvinyl alcohol resin molding

Also Published As

Publication number Publication date
BR9401024A (en) 1995-03-28
JP3289991B2 (en) 2002-06-10
CA2122282C (en) 1998-02-24
ZA942844B (en) 1995-07-04
JPH06315959A (en) 1994-11-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed