BR8200771A - Pre-forma em materia termoplastica e processo para moldar por sopragem um corpo oco a partir de uma tal pre-forma - Google Patents

Pre-forma em materia termoplastica e processo para moldar por sopragem um corpo oco a partir de uma tal pre-forma

Info

Publication number
BR8200771A
BR8200771A BR8200771A BR8200771A BR8200771A BR 8200771 A BR8200771 A BR 8200771A BR 8200771 A BR8200771 A BR 8200771A BR 8200771 A BR8200771 A BR 8200771A BR 8200771 A BR8200771 A BR 8200771A
Authority
BR
Brazil
Prior art keywords
blowing
preform
thermoplastic material
false neck
holy
Prior art date
Application number
BR8200771A
Other languages
English (en)
Inventor
Jose Branchadell
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Publication of BR8200771A publication Critical patent/BR8200771A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0731—Preforms or parisons characterised by their configuration having variable diameter at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0732—Preforms or parisons characterised by their configuration having variable diameter at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0733—Preforms or parisons characterised by their configuration having variable diameter at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/0778—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the flange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/079—Auxiliary parts or inserts
    • B29C2949/0795—Parts to assist orientation of preform, e.g. in mould
    • B29C2949/0797—Parts to assist orientation of preform, e.g. in mould at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/082—Diameter
    • B29C2949/0822—Diameter of the neck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0829—Height, length
    • B29C2949/0831—Height, length of the neck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/68—Ovens specially adapted for heating preforms or parisons
    • B29C49/685—Rotating the preform in relation to heating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1397—Single layer [continuous layer]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
BR8200771A 1981-02-23 1982-02-12 Pre-forma em materia termoplastica e processo para moldar por sopragem um corpo oco a partir de uma tal pre-forma BR8200771A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8103708A FR2500361A1 (fr) 1981-02-23 1981-02-23 Preforme en matiere thermoplastique comportant une couronne dentee circulaire, destinee a assurer sa rotation, lors du conditionnement thermique qui precede le moulage par soufflage

Publications (1)

Publication Number Publication Date
BR8200771A true BR8200771A (pt) 1982-12-21

Family

ID=9255607

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8200771A BR8200771A (pt) 1981-02-23 1982-02-12 Pre-forma em materia termoplastica e processo para moldar por sopragem um corpo oco a partir de uma tal pre-forma

Country Status (7)

Country Link
US (2) US4451426A (pt)
EP (1) EP0059016B1 (pt)
AT (1) ATE10172T1 (pt)
BR (1) BR8200771A (pt)
DE (1) DE3261156D1 (pt)
ES (2) ES8306640A1 (pt)
FR (1) FR2500361A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208046A (ja) * 1982-05-28 1983-12-03 東洋製罐株式会社 配向された被覆を有するプラスチツク容器及びその製法
US4592720A (en) * 1984-12-21 1986-06-03 Adolph Coors Company Device for reheating and blow molding parisons
ATE57132T1 (de) * 1987-09-03 1990-10-15 Berstorff Gmbh Masch Hermann Einrichtung zum drehbaren transportieren von vorformlingen durch eine aufheizstation zu einer streckblasmaschine.
US5282526A (en) * 1992-09-28 1994-02-01 Cincinnati Milacron Inc. Apparatus and method for orienting container preforms
BE1006399A7 (nl) * 1993-09-27 1994-08-16 Resilux Afsluitinrichting.
US6019591A (en) * 1995-03-22 2000-02-01 Pepsico, Inc. System for molding a footed plastic bottle
DE19654658A1 (de) * 1996-12-28 1998-07-02 Krupp Corpoplast Masch Verfahren und Vorrichtung bei der Herstellung von Behältern
DE19757818A1 (de) 1997-12-24 1999-07-01 Krupp Corpoplast Masch Verfahren zur Temperierung von Vorformlingen sowie Vorrichtung zur Temperierung
US7033656B2 (en) * 2002-04-12 2006-04-25 Graham Packaging Pet Technologies, Inc. Graded crystallization of container finishes
DE102004034286A1 (de) * 2004-07-15 2006-02-16 Sig Technology Ltd. Verfahren und Vorrichtung zur Blasformung von Behältern
US20060204694A1 (en) 2005-03-08 2006-09-14 Silgan Plastics Corporation Bottle with extended neck finish and method of making same
US7713055B2 (en) * 2005-10-18 2010-05-11 Milacron Llc Blow mold assembly
EP2170138B1 (en) * 2007-06-15 2013-02-20 Howard Robert Stasin Spice grinders
US8057733B2 (en) 2007-12-21 2011-11-15 Silgan Plastics Corporation Dosing bottle and method
USD769720S1 (en) 2007-12-21 2016-10-25 Silgan Plastics Llc Preform for dosing bottle
FR3029511B1 (fr) 2014-12-08 2019-04-12 Sidel Participations "dispositif d'orientation d'un recipient comportant deux galets d'entrainement du recipient"
DE112015006573B4 (de) 2015-05-28 2020-10-15 Shb Gmbh Kunststoffflasche, insbesondere WC-Flasche sowie Aufsatz und Flaschenbehälter für eine derartige Kunststoffflasche
JP7068930B2 (ja) * 2018-05-31 2022-05-17 株式会社吉野工業所 合成樹脂製容器、及びプリフォーム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182103A (en) * 1961-11-20 1965-05-04 Owens Illinois Glass Co Process and apparatus for treating hollow thermoplastic articles
US3339230A (en) * 1965-01-22 1967-09-05 John J Farrell Molding apparatus
US4005245A (en) * 1972-07-03 1977-01-25 Illinois Tool Works Inc. Tapered plastic preform for telescopic application
US3894835A (en) * 1973-11-21 1975-07-15 Monsanto Co Apparatus improvements in temperature-conditioning parts
US3947243A (en) * 1974-12-30 1976-03-30 Beloit Corporation Oven with parison rotating means
CH595970A5 (pt) * 1975-01-07 1978-02-28 Solvay
US3961113A (en) * 1975-03-03 1976-06-01 Illinois Tool Works Inc. Thermoplastic preform and heated mandrel constructions
FR2383101A1 (fr) * 1977-03-08 1978-10-06 Cincinnati Milacron Inc Dispositif de prehension pour le transport d'objets entre des postes de chargement et de dechargement
FR2383005A1 (fr) * 1977-03-09 1978-10-06 Solvay Procede pour la production de corps creux en matiere thermoplastique et appareillage pour sa realisation
US4288478A (en) * 1977-11-14 1981-09-08 Yoshino Kogyosho Co., Ltd. Parison and method for forming parisons for biaxial orientation blow molding
US4256789B1 (en) * 1979-07-19 1991-03-26 Injection molded,polyethylene terephthalate parison for blow molding
US4426416A (en) * 1980-10-14 1984-01-17 Plm Aktiebolag Article of plastic material having a neck portion including annular protuberances with monoaxially oriented material

Also Published As

Publication number Publication date
EP0059016B1 (fr) 1984-11-07
ES509788A0 (es) 1983-06-01
US4469755A (en) 1984-09-04
ATE10172T1 (de) 1984-11-15
US4451426A (en) 1984-05-29
FR2500361A1 (fr) 1982-08-27
ES270354U (es) 1983-07-16
EP0059016A1 (fr) 1982-09-01
DE3261156D1 (en) 1984-12-13
ES8306640A1 (es) 1983-06-01
ES270354Y (es) 1984-02-16
FR2500361B1 (pt) 1983-06-17

Similar Documents

Publication Publication Date Title
BR8200771A (pt) Pre-forma em materia termoplastica e processo para moldar por sopragem um corpo oco a partir de uma tal pre-forma
FR2703944B1 (fr) Procédé et installation pour le traitement thermique du corps d'une préforme en matériau thermoplastique.
SE8702314D0 (sv) Hollow plastic product partially different in composition and its manufacturing apparatus
ES8301752A1 (es) Procedimiento para la fabricacion de cuerpos huecos por moldeo.
DE69109605D1 (de) Verfahren zum Herstellen wärmeisolierender und/oder eine bestimmte Struktur aufweisender Gegenstände und so hergestellte Gegenstände.
ES469382A1 (es) Procedimiento de fabricacion de cuerpos huecos biorientados de materia termoplastica
BR7902918A (pt) Conjunto de manipulacao,mecanismo de escape e transportador de perfil preliminar;processo de transportar perfis preliminares de garrafa tubulares,sopraveis,aparelho de medicao;maquina de moldar por sopro,e sistema de alimentacao
BR9604890A (pt) Uso de uma inserção de fundo troncônica processo de fabricação e respectivo aparelho para garrafas de plástico
BR9307086A (pt) Processos para preparar um recipiente biaxialmente soprado transparente recozido e para recozer garrafas aparelho para recozimento e moldagem por sopro de um recipiente termoplástico biaxialmente orientado e preforma
DE3371881D1 (en) Method of fixing a sheet-like article, for example a label, on a hollow plastic body, and apparatus to carry out the method
FR2399977A1 (fr) Procede pour la production de corps creux orientes
ATE302681T1 (de) Verfahren und vorrichtung zur herstellung einer pet flasche mit aussermittigem flaschenhals
GB1441657A (en) Blow moulding of plastics preforms
FR2608588B1 (fr) Procede de fabrication d'objets en verre
ES8406938A1 (es) Procedimiento para la obtencion de un cuerpo hueco de dos capas.
BR9910709A (pt) Processo para produzir uma pré-forma de polìmero termoplástico, pré-forma, processo para cristalizar pelo menos uma porção do acabamento de um recipiente de polìmero termoplástico, recipiente, processos para produzir um recipiente de polìmero termoplástico e para cristalizar uma composição de polìmero termoplástico, garrafa, e, processo para formar um recipiente compreendendo um acabamento ajustado por calor em uma porção do recipiente
EP0035035A4 (en) METHOD FOR PRODUCING BLOW-MOLDED BOTTLES FROM SATURATED POLYESTER.
DE59913042D1 (de) Vorrichtung zur herstellung von kunststoffhohlkörpern
DE3760170D1 (en) Method of making hollow articles from thermoplastic material
GB1355287A (en) Methods and apparatus for producing blow moulded hollow articles
ES8205372A1 (es) Perfeccionamientos en la fabricacion por soplado de botellasy cuerpos huecos de material termoplastico
JPS5649241A (en) Method for injection molding for double layer parison
JPS5745033A (en) Manufacture of container having dimensionally stabilized mouth
KR870002308A (ko) 촉감이 우수한 울리조(Wooly調) 이 염사의 제조방법
JPS57208215A (en) Simultaneous molding method for plurality of biaxially stretched bottles