JPS6271622A - Preparation of multi-layer biaxially drawn bottle - Google Patents

Preparation of multi-layer biaxially drawn bottle

Info

Publication number
JPS6271622A
JPS6271622A JP21181585A JP21181585A JPS6271622A JP S6271622 A JPS6271622 A JP S6271622A JP 21181585 A JP21181585 A JP 21181585A JP 21181585 A JP21181585 A JP 21181585A JP S6271622 A JPS6271622 A JP S6271622A
Authority
JP
Japan
Prior art keywords
temp
resin composition
preform
tgl
equation
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
JP21181585A
Other versions
JPH0433257B2 (en
Inventor
Nobuo Suyama
Yoshio Toyoda
Kenji Yasue
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP21181585A priority Critical patent/JPH0433257B2/ja
Publication of JPS6271622A publication Critical patent/JPS6271622A/en
Publication of JPH0433257B2 publication Critical patent/JPH0433257B2/ja
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Abstract

PURPOSE:To obtain efficiently a multi-layer drawn bottle and to improve the heat resistance, by utilizing a temp. distribution of a preform on the cooling process after injection molding for controlling the temp. of the perform and by selecting a resin composition and a position of a core layer fit thereto. CONSTITUTION:A resin composition having a higher glass transition temp. TgH and a resin composition having a lower glass transition temp. TgL, both selected from a resin composition consisting of 99-20pts.wt. of polyethylene terephthalate and 1-80pts.wt. of aromatic polyester, are respectively a core and a skin layer forming a preform. The surface temp. of the preform on the cooling process are controlled in a temp. range satisfying the equation TgL< the surface temp. of the preform <TgL+50 deg.C (1) and biaxial drawing-blowing is carried out. The difference between the glass transition temp. of two resin compositions selected here satisfies the equation (2) and the melt viscosity of the resin composition for the core layer is smaller than that of the resin composition for the skin layer. X in the equation (2) shows a half of the thickness of the core layer.
JP21181585A 1985-09-25 1985-09-25 Expired - Lifetime JPH0433257B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21181585A JPH0433257B2 (en) 1985-09-25 1985-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21181585A JPH0433257B2 (en) 1985-09-25 1985-09-25

Publications (2)

Publication Number Publication Date
JPS6271622A true JPS6271622A (en) 1987-04-02
JPH0433257B2 JPH0433257B2 (en) 1992-06-02

Family

ID=16612052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21181585A Expired - Lifetime JPH0433257B2 (en) 1985-09-25 1985-09-25

Country Status (1)

Country Link
JP (1) JPH0433257B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068136A (en) * 1987-12-22 1991-11-26 Mitsubishi Gas Chemical Company, Inc. Five-layered container
WO2011037792A1 (en) * 2009-09-22 2011-03-31 Graham Packaging Lc, L.P. Pet containers with enhanced thermal properties
US9023446B2 (en) 2009-09-22 2015-05-05 Graham Packaging Lc, L.P. PET containers with enhanced thermal properties and process for making same
US9725802B2 (en) 2014-11-11 2017-08-08 Graham Packaging Company, L.P. Method for making pet containers with enhanced silicon dioxide barrier coating

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068136A (en) * 1987-12-22 1991-11-26 Mitsubishi Gas Chemical Company, Inc. Five-layered container
WO2011037792A1 (en) * 2009-09-22 2011-03-31 Graham Packaging Lc, L.P. Pet containers with enhanced thermal properties
EP2480395A1 (en) * 2009-09-22 2012-08-01 Graham Packaging Company, L.P. Pet containers with enhanced thermal properties
US8507063B2 (en) 2009-09-22 2013-08-13 Graham Packaging Lc, L.P. Pet containers with enhanced thermal properties
EP2480395B1 (en) * 2009-09-22 2015-04-08 Graham Packaging LC, LP. Pet containers with enhanced thermal properties
US9023446B2 (en) 2009-09-22 2015-05-05 Graham Packaging Lc, L.P. PET containers with enhanced thermal properties and process for making same
US9725802B2 (en) 2014-11-11 2017-08-08 Graham Packaging Company, L.P. Method for making pet containers with enhanced silicon dioxide barrier coating

Also Published As

Publication number Publication date
JPH0433257B2 (en) 1992-06-02

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