ES2187808T3 - Procedimiento de reduccion de los flujos no controlados de polimeros durante las etapas de llenado y de refrigeracion en el acabado del gollete de preformas. - Google Patents

Procedimiento de reduccion de los flujos no controlados de polimeros durante las etapas de llenado y de refrigeracion en el acabado del gollete de preformas.

Info

Publication number
ES2187808T3
ES2187808T3 ES97938361T ES97938361T ES2187808T3 ES 2187808 T3 ES2187808 T3 ES 2187808T3 ES 97938361 T ES97938361 T ES 97938361T ES 97938361 T ES97938361 T ES 97938361T ES 2187808 T3 ES2187808 T3 ES 2187808T3
Authority
ES
Spain
Prior art keywords
procedure
polymer
preform
bucket
finishing
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.)
Expired - Lifetime
Application number
ES97938361T
Other languages
English (en)
Inventor
Thomas E Nahill
Suppayan M Krishnakumar
Wayne N Collette
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.)
Graham Packaging Pet Technologies Inc
Original Assignee
Graham Packaging Pet Technologies Inc
Continental PET Technologies 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 Graham Packaging Pet Technologies Inc, Continental PET Technologies Inc filed Critical Graham Packaging Pet Technologies Inc
Application granted granted Critical
Publication of ES2187808T3 publication Critical patent/ES2187808T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1646—Injecting parison-like articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1643—Making multilayered or multicoloured articles having a "sandwich" structure from at least three different materials or with at least four layers
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C2045/1656—Injecting the skin material through the central passage of the multiway nozzle
    • 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
    • B29C2949/0811—Wall thickness
    • B29C2949/0813—Wall thickness 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
    • B29C2949/082—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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0861—Other specified values, e.g. values or ranges
    • B29C2949/0862—Crystallinity
    • B29C2949/0863—Crystallinity at the 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
    • B29C2949/0861—Other specified values, e.g. values or ranges
    • B29C2949/0862—Crystallinity
    • B29C2949/0865—Crystallinity at the 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3008—Preforms or parisons made of several components at neck portion
    • B29C2949/3009—Preforms or parisons made of several components at neck portion partially
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3012—Preforms or parisons made of several components 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/302—Preforms or parisons made of several components 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
    • B29C2949/303—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components having more than three components
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
    • B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
    • 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
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
    • B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
    • B29C2949/3038—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected having more than three components being injected
    • 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
    • B29C49/6604—Thermal conditioning of the blown article
    • B29C49/6605—Heating the article, e.g. for hot fill

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Sealing Material Composition (AREA)
  • Polymerisation Methods In General (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packages (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

UN PROCEDIMIENTO PARA REDUCIR EL FLUJO INCONTROLADO DE UN POLIMERO FUNDIDO DURANTE LA ETAPA DE EMPAQUETADURA Y ENFRIAMIENTO, EN UN CICLO DE MOLDEO POR INYECCION. SE INYECTAN UNA PLURALIDAD DE POLIMEROS ENTRE UNA CAVIDAD Y UN NUCLEO DE MOLDE, PARA FABRICAR UN ARTICULO PLASTICO MULTICAPA, COMO UNA PREFORMA, CON UNA CAPA EXTERIOR DE UN PRIMER POLIMERO Y UNA CAPA INTERIOR DE UN SEGUNDO POLIMERO. EN UNA ZONA CONICA DEL MOLDE, SE SELECCIONA UNA ANCHURA MINIMA DE LA ZONA CONICA PARA IMPEDIR QUE EL SEGUNDO POLIMERO DESARROLLE UN EFECTO REALZADO DE BORDE ANTERIOR/POSTERIOR, QUE HAGA INVERTIR EL FLUJO AL SEGUNDO POLIMERO DURANTE LA ETAPA DE EMPAQUETADURA Y ENFRIAMIENTO. EL PROCEDIMIENTO ES ESPECIALMENTE UTIL PARA FABRICAR PREFORMAS PARA ENVASES MOLDEADOS POR SOPLADO, COMO UN ENVASE DE KETCHUP, CON UN PERFIL DE CUELLO RELATIVAMENTE LARGO Y FINO. ADEMAS, EL PROCEDIMIENTO MANTIENE LA CAPA (BARRERA) INTERIOR A UNA DISTANCIA MINIMA DE LA SUPERFICIE SUPERIOR DE CIERRE DE LA PREFORMA, PARA IMPEDIR CIERRES DEFECTUOSOS OBTENIDOS POR FUSION.
ES97938361T 1996-08-22 1997-08-18 Procedimiento de reduccion de los flujos no controlados de polimeros durante las etapas de llenado y de refrigeracion en el acabado del gollete de preformas. Expired - Lifetime ES2187808T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/702,755 US6063325A (en) 1996-08-22 1996-08-22 Method for preventing uncontrolled polymer flow in preform neck finish during packing and cooling stage

Publications (1)

Publication Number Publication Date
ES2187808T3 true ES2187808T3 (es) 2003-06-16

Family

ID=24822455

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97938361T Expired - Lifetime ES2187808T3 (es) 1996-08-22 1997-08-18 Procedimiento de reduccion de los flujos no controlados de polimeros durante las etapas de llenado y de refrigeracion en el acabado del gollete de preformas.

Country Status (16)

Country Link
US (1) US6063325A (es)
EP (2) EP0921928B1 (es)
JP (1) JP4104022B2 (es)
CN (2) CN1082427C (es)
AT (1) ATE227632T1 (es)
AU (1) AU727103B2 (es)
BR (1) BR9711343A (es)
CA (1) CA2263845C (es)
DE (1) DE69717119T2 (es)
DK (1) DK0921928T3 (es)
ES (1) ES2187808T3 (es)
HU (1) HUP9903957A3 (es)
NO (1) NO313817B1 (es)
NZ (1) NZ334575A (es)
PT (1) PT921928E (es)
WO (1) WO1998007556A1 (es)

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Also Published As

Publication number Publication date
CN1233207A (zh) 1999-10-27
EP1215028A3 (en) 2003-01-02
HUP9903957A2 (hu) 2001-09-28
DK0921928T3 (da) 2003-03-10
JP2000516167A (ja) 2000-12-05
ATE227632T1 (de) 2002-11-15
BR9711343A (pt) 1999-08-17
CA2263845C (en) 2006-12-05
AU727103B2 (en) 2000-11-30
EP0921928B1 (en) 2002-11-13
CA2263845A1 (en) 1998-02-26
PT921928E (pt) 2003-03-31
JP4104022B2 (ja) 2008-06-18
EP0921928A1 (en) 1999-06-16
CN1082427C (zh) 2002-04-10
HUP9903957A3 (en) 2001-10-29
AU4071097A (en) 1998-03-06
US6063325A (en) 2000-05-16
EP1215028A2 (en) 2002-06-19
NZ334575A (en) 2000-10-27
NO313817B1 (no) 2002-12-09
NO990826L (no) 1999-04-21
DE69717119D1 (de) 2002-12-19
NO990826D0 (no) 1999-02-22
CN1377765A (zh) 2002-11-06
CN1159147C (zh) 2004-07-28
DE69717119T2 (de) 2003-08-21
WO1998007556A1 (en) 1998-02-26

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