ES2239559T1 - Moldeado de una preforma. - Google Patents
Moldeado de una preforma.Info
- Publication number
- ES2239559T1 ES2239559T1 ES04077346T ES04077346T ES2239559T1 ES 2239559 T1 ES2239559 T1 ES 2239559T1 ES 04077346 T ES04077346 T ES 04077346T ES 04077346 T ES04077346 T ES 04077346T ES 2239559 T1 ES2239559 T1 ES 2239559T1
- Authority
- ES
- Spain
- Prior art keywords
- layer
- sleeve
- inner sleeve
- article
- pet
- 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
Classifications
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- 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
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/1625—Injecting parison-like articles
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- 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
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- 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
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
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- 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
- B29C45/1684—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
- 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
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
- B29C49/6454—Thermal conditioning of preforms characterised by temperature differential through the preform thickness
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0861—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using radio frequency
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- 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
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
- B29C2045/1659—Fusion bonds
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- 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
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
- B29C2049/222—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons only parts of the preforms or parisons are layered
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- 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
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
- B29C2049/7861—Temperature of the preform
- B29C2049/7862—Temperature of the preform characterised by temperature values or ranges
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- 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
- B29C49/78—Measuring, controlling or regulating
- B29C2049/7879—Stretching, e.g. stretch rod
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- 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
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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- 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
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
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- 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
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0723—Preforms or parisons characterised by their configuration having variable wall thickness at flange portion
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- 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
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0724—Preforms or parisons characterised by their configuration having variable wall thickness at body portion
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- 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
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0725—Preforms or parisons characterised by their configuration having variable wall thickness at bottom portion
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- B29C2949/0777—Tamper-evident band retaining ring
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/079—Auxiliary parts or inserts
- B29C2949/08—Preforms made of several individual parts, e.g. by welding or gluing parts together
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/07—Preforms or parisons characterised by their configuration
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (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)
- Soft Magnetic Materials (AREA)
- Springs (AREA)
Abstract
Un método de moldear por inyección una preforma de plástico incluyendo: moldear por inyección un primer material termoplástico para formar una primera porción de preforma (340) que tiene una cristalinidad porcentual media de al menos aproximadamente 30%; y moldear por inyección un segundo material termoplástico para formar una segunda porción de preforma (350) que permanece sustancialmente amorfa.
Claims (53)
1. Un método de moldear por inyección una
preforma de plástico incluyendo:
moldear por inyección un primer material
termoplástico para formar una primera porción de preforma (340) que
tiene una cristalinidad porcentual media de al menos aproximadamente
30%; y
moldear por inyección un segundo material
termoplástico para formar una segunda porción de preforma (350) que
permanece sustancialmente amorfa.
2. El método de la reivindicación 1, donde la
primera porción es sustancialmente una porción de cuello (340) y la
segunda porción es sustancialmente una porción de formación de
cuerpo (350).
3. El método de la reivindicación 1, donde el
segundo material tiene una velocidad de cristalización más baja en
comparación con el material.
4. El método de la reivindicación 3, donde el
primer material se selecciona a partir del grupo que consta de
poliéster, poliéster con agentes nucleantes, polímeros de arilato,
naftalato de polietileno (PEN), policarbonato, polipropileno,
poliamida, polisulfona, acrilonitrilo estireno, y sus polímeros y
mezclas.
5. El método de la reivindicación 4, donde el
segundo material se selecciona a partir del grupo que consta de
homopolímeros, copolímeros y mezclas de uno o varios de: tereftalato
de polietileno (PET), naftalato de polietileno (PEN), y PET
reciclado.
6. El método de la reivindicación 4 incluyendo
además expandir la segunda porción (350) para formar un cuerpo
sustancialmente transparente y orientado biaxialmente (380) de un
envase (370).
7. Un método de hacer un artículo de plástico
multicapa moldeado por inyección, incluyendo el método:
moldear en primer lugar una capa de manguito
interior entre una primera cavidad de molde y núcleo, calentándose
la primera cavidad de molde para obtener una superficie exterior de
la capa de manguito interior a una temperatura elevada en un paso de
moldeo siguiente;
transferir el núcleo y la capa de manguito a una
segunda cavidad de molde y moldear en segundo lugar una capa
exterior sobre la capa de manguito mientras la superficie exterior
está a la temperatura elevada, teniendo la capa exterior un grosor
mayor que el grosor de la capa de manguito interior, donde la
temperatura elevada se selecciona para obtener adhesión por fusión
entre el manguito interior y la capa exterior durante el segundo
paso de moldeo.
8. El método de la reivindicación 7, donde:
el manguito interior incluye un polímero no
reciclado; y
la capa exterior incluye un polímero
reciclado.
9. El método de la reivindicación 8, donde:
el polímero no reciclado es un polímero de
tereftalato de polietileno (PET) virgen incluyendo homopolímero,
copolímero y mezclas de PET; y
el polímero reciclado es PET reciclado.
10. El método de la reivindicación 9, donde:
el manguito interior incluye hasta 20% en peso
del artículo.
11. El método de la reivindicación 10, donde:
el manguito interior incluye del orden de 10% en
peso del artículo.
12. El método de la reivindicación 9, donde:
el manguito interior es un manguito interior de
longitud completa de PET no reciclado incluyendo hasta 20% en peso
del artículo;
la capa exterior incluye al menos una capa de PET
reciclado.
13. El método de la reivindicación 7, donde el
manguito interior se selecciona a partir del grupo que consta
de:
una porción de manguito de longitud completa;
una porción superior de manguito;
una porción de manguito superior de grosor
completo; y
una porción de manguito incluyendo una superficie
superior del artículo; y
el manguito interior incluye un polímero
seleccionado a partir del grupo que consta de:
un polímero de Tg alta;
un polímero de naftalato de polietileno (PEN)
incluyendo homopolímero, copolímero bajo y mezclas de PEN; y
un polímero cristalizable.
14. El método de la reivindicación 7, donde:
el artículo es una preforma para hacer un envase
de bebida.
15. El método de la reivindicación 14, donde:
el artículo se expande para hacer un envase de
bebida seleccionado a partir del grupo que consta de envases de
bebidas carbónicas, llenables en caliente, rellenables,
pasteurizables, y de barrera al oxígeno.
16. El método de la reivindicación 7, donde la
adhesión por fusión entre el manguito interior y la capa exterior
incluye uno o varios de unión por difusión y enredo de cadena.
17. El método de la reivindicación 7, donde el
manguito forma una porción superior de manguito del artículo, y la
capa exterior forma una porción inferior de cuerpo del artículo.
18. El método de la reivindicación 17, donde la
porción superior de manguito se cristaliza en la primera cavidad de
molde.
19. El método de la reivindicación 7, donde el
primer paso de moldeo forma el manguito interior como:
una porción de manguito de longitud completa;
una porción superior de manguito;
una porción de manguito superior de grosor
completo; y
una porción de manguito incluyendo una superficie
superior del artículo.
20. El método de la reivindicación 7, donde la
capa exterior incluye múltiples capas exteriores.
21. El método de la reivindicación 7, donde el
artículo es una preforma.
22. El método de la reivindicación 21, donde el
primer paso de moldeo forma una porción de acabado de cuello de la
preforma.
23. El método de la reivindicación 22, donde la
porción de acabado de cuello se moldea a partir de un polímero que
cristaliza durante el primer paso de moldeo.
24. El método de la reivindicación 22, donde la
porción de acabado de cuello se moldea a partir de un primer
material polimérico que tiene una temperatura de transición vítrea
más alta que un segundo material polimérico que forma la capa
exterior.
25. El método de la reivindicación 7, donde el
manguito cristaliza durante el primer paso de moldeo.
26. El método de la reivindicación 7, donde el
manguito tiene un grosor de pared en un rango del orden de 0,5 a 1,5
mm.
27. El método de la reivindicación 26, donde la
capa exterior tiene un grosor de pared en un rango del orden de
2,51-6,35 mm.
28. El método de la reivindicación 7, donde el
manguito interior se hace de un primer material que tiene una
primera temperatura de fusión, y la capa exterior incluye una
segunda capa adyacente al manguito interior y hecha de un segundo
material que tiene una segunda temperatura de fusión menor que la
primera temperatura de fusión.
29. El método de la reivindicación 28, donde:
el manguito interior incluye un primer polímero
de tereftalato de polietileno (PET); y
la capa exterior incluye un segundo polímero
PET.
30. El método de la reivindicación 29, donde:
cada uno del polímero PET primero y segundo se
seleccionan a partir del grupo que consta de homopolímero PET y
copolímeros bajos.
31. El método de la reivindicación 30, donde:
el primer polímero PET tiene una viscosidad
intrínseca de al menos 0,76.
32. El método de la reivindicación 31, donde:
el manguito interior tiene un grosor de pared en
un rango de 0,5 a 1,5 mm; y
la capa exterior tiene un grosor de pared en el
rango de 2,50 a 6,35 mm.
33. El método de la reivindicación 29, donde:
el artículo es una preforma para hacer un envase
de bebida.
34. El método de la reivindicación 33, donde:
la preforma tiene una porción de cuerpo y el
método incluye además expandir la porción de cuerpo de la preforma
para formar un envase que tiene una porción de cuerpo
sustancialmente transparente y orientada biaxialmente.
35. El método de la reivindicación 7, donde la
primera cavidad de molde está a una primera temperatura de cavidad y
la segunda cavidad de molde está a una segunda temperatura de
cavidad menor que la primera temperatura de cavidad.
36. El método de la reivindicación 35, donde el
núcleo está a una temperatura de núcleo que es inferior a la primera
temperatura de cavidad.
37. El método de la reivindicación 7, donde el
manguito interior se hace de un primer material que tiene una
primera Tg, y la temperatura elevada está en un rango del orden de
5-20ºC por debajo de la primera Tg.
38. El método de la reivindicación 7, donde el
manguito se moldea de un primer material seleccionado del grupo que
consta de homopolímeros, copolímeros, y mezclas de naftalato de
polietileno (PEN).
39. El método de la reivindicación 7, donde la
capa exterior incluye al menos una capa moldeada a partir de un
segundo material seleccionado del grupo que consta de tereftalato de
polietileno (PET), PET reciclado, polietileno, polipropileno,
poliacrilato, policarbonato, poliacrilonitrilo, nylon, y sus
copolímeros y mezclas.
40. El método de la reivindicación 7, donde el
artículo tiene una porción de pared lateral en la que el manguito
interior tiene un primer grosor (t1) y la capa exterior tiene un
segundo grosor (t2), y la relación de t2:t1 es mayor que el orden de
4:1.
41. El método de la reivindicación 7, donde el
manguito interior tiene un primer grosor (t1) y la capa exterior
tiene un segundo grosor (t2), y la relación de t2:t1 es del orden de
1,2:1 a 8:1.
42. El método de la reivindicación 7, donde el
manguito interior está sustancialmente cristalizado y la capa
exterior es sustancialmente amorfa.
43. El método de la reivindicación 7, donde el
manguito interior se hace de un primer material y la capa exterior
se hace de un segundo material, y el segundo material tiene una
velocidad de cristalización más baja en comparación con el primer
material.
44. El método de la reivindicación 7, donde se
obtienen núcleos primero y segundo, y donde durante un primer ciclo
el primer núcleo se coloca en la primera cavidad de molde para
formar un primer manguito interior, y el segundo núcleo, sobre el
que se ha colocado el segundo manguito interior, se coloca
simultáneamente en la segunda cavidad de molde para moldear una
segunda capa exterior sobre el segundo manguito interior.
45. El método de la reivindicación 7, donde el
primer paso de moldeo incluye un período inicial sin
acción durante el que prosigue el segundo paso de moldeo para facilitar el segundo paso de moldeo con la superficie exterior de la capa de manguito a la temperatura elevada.
acción durante el que prosigue el segundo paso de moldeo para facilitar el segundo paso de moldeo con la superficie exterior de la capa de manguito a la temperatura elevada.
46. El método de la reivindicación 7, donde el
manguito se moldea de un primer material seleccionado del grupo que
consta de poliéster, poliéster con agentes nucleantes, acrilato,
naftalato de polietileno (PEN), policarbonato, polipropileno,
poliamida, polisulfona, acrilonitrilo estireno, y sus copolímeros y
mezclas.
47. El método de la reivindicación 46, donde la
capa exterior incluye un segundo material seleccionado del grupo que
consta de homopolímeros, copolímeros, y mezclas de uno o varios de:
tereftalato de polietileno (PET), naftalato de polietileno (PEN), y
PET reciclado.
48. El método de la reivindicación 7, donde el
artículo tiene una porción de cuerpo y el método incluye además
expandir la porción de cuerpo del artículo para formar un artículo
expandido que tiene una porción de cuerpo sustancialmente
transparente y orientada biaxialmente.
49. El método de la reivindicación 7, donde el
método incluye además enfriar el artículo por debajo de una primera
temperatura de transición vítrea de un primer material que incluye
la capa de manguito interior, volver a calentar el artículo por
encima de la primera temperatura de transición vítrea, y expandir el
artículo recalentado para formar un artículo expandido.
50. El método de la reivindicación 7, donde el
artículo expandido tiene una porción de acabado de cuello superior
de Tg alta o cristalizada y una porción de cuerpo sustancialmente
transparente, orientada biaxialmente.
51. Un método de moldear un artículo de plástico
multicapa en el que se moldea una primera capa sobre un núcleo en
una primera cavidad de molde y la primera capa y el núcleo son
transferidos a una segunda cavidad de molde donde se moldea una
segunda capa, donde:
se elimina sustancialmente toda etapa de
enfriamiento en el primer molde para obtener una superficie exterior
de la primera capa a una temperatura elevada en el segundo molde que
permite la adhesión por fusión entre la superficie exterior de la
primera capa y la segunda capa.
52. El método de la reivindicación 51, donde se
ha previsto un período inicial sin acción en el primer molde, antes
de la etapa de llenado y presión.
53. El método de la reivindicación 51, donde hay,
simultáneo con el moldeo de la primera capa sobre un núcleo en el
primer molde, moldeo de una segunda capa sobre una primera capa
moldeada previamente sobre un segundo núcleo en el segundo
molde.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US49957095A | 1995-07-07 | 1995-07-07 | |
US499570 | 1995-07-07 | ||
US08/534,126 US6217818B1 (en) | 1995-07-07 | 1995-09-26 | Method of making preform and container with crystallized neck finish |
US534126 | 1995-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2239559T1 true ES2239559T1 (es) | 2005-10-01 |
Family
ID=27053185
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES04077346T Pending ES2239559T1 (es) | 1995-07-07 | 1996-07-08 | Moldeado de una preforma. |
ES01202257T Expired - Lifetime ES2249379T3 (es) | 1995-07-07 | 1996-07-08 | Procedimiento de moldeado de articulos de capas multiples de materia plastica. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES01202257T Expired - Lifetime ES2249379T3 (es) | 1995-07-07 | 1996-07-08 | Procedimiento de moldeado de articulos de capas multiples de materia plastica. |
Country Status (12)
Country | Link |
---|---|
US (4) | US6428737B1 (es) |
EP (1) | EP0837763B1 (es) |
AR (1) | AR002773A1 (es) |
AT (2) | ATE211053T1 (es) |
AU (1) | AU709059B2 (es) |
BR (1) | BR9609608A (es) |
CA (1) | CA2226230C (es) |
DE (3) | DE69635198T2 (es) |
ES (2) | ES2239559T1 (es) |
MX (1) | MX9800131A (es) |
NZ (1) | NZ312920A (es) |
WO (1) | WO1997002939A1 (es) |
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-
1996
- 1996-07-05 AR AR10348396A patent/AR002773A1/es unknown
- 1996-07-08 MX MX9800131A patent/MX9800131A/es not_active IP Right Cessation
- 1996-07-08 US US08/981,467 patent/US6428737B1/en not_active Expired - Fee Related
- 1996-07-08 ES ES04077346T patent/ES2239559T1/es active Pending
- 1996-07-08 AT AT96924391T patent/ATE211053T1/de not_active IP Right Cessation
- 1996-07-08 WO PCT/US1996/011413 patent/WO1997002939A1/en active IP Right Grant
- 1996-07-08 AU AU64858/96A patent/AU709059B2/en not_active Ceased
- 1996-07-08 CA CA002226230A patent/CA2226230C/en not_active Expired - Fee Related
- 1996-07-08 DE DE1996635198 patent/DE69635198T2/de not_active Expired - Fee Related
- 1996-07-08 DE DE2004077346 patent/DE04077346T1/de active Pending
- 1996-07-08 BR BR9609608A patent/BR9609608A/pt not_active IP Right Cessation
- 1996-07-08 NZ NZ312920A patent/NZ312920A/en unknown
- 1996-07-08 ES ES01202257T patent/ES2249379T3/es not_active Expired - Lifetime
- 1996-07-08 EP EP19960924391 patent/EP0837763B1/en not_active Expired - Lifetime
- 1996-07-08 DE DE1996618198 patent/DE69618198T2/de not_active Expired - Fee Related
- 1996-07-08 AT AT01202257T patent/ATE304436T1/de not_active IP Right Cessation
-
2001
- 2001-03-01 US US09/797,502 patent/US6572812B2/en not_active Expired - Fee Related
-
2002
- 2002-08-02 US US10/209,896 patent/US6787094B2/en not_active Expired - Fee Related
-
2004
- 2004-07-12 US US10/887,872 patent/US7615176B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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EP0837763A1 (en) | 1998-04-29 |
US20030001311A1 (en) | 2003-01-02 |
AU709059B2 (en) | 1999-08-19 |
DE69618198T2 (de) | 2002-07-11 |
US7615176B2 (en) | 2009-11-10 |
MX9800131A (es) | 1998-03-31 |
DE69618198D1 (de) | 2002-01-31 |
DE69635198D1 (de) | 2005-10-20 |
BR9609608A (pt) | 1999-05-25 |
ATE304436T1 (de) | 2005-09-15 |
CA2226230A1 (en) | 1997-01-30 |
US6787094B2 (en) | 2004-09-07 |
ES2249379T3 (es) | 2006-04-01 |
EP0837763B1 (en) | 2001-12-19 |
AR002773A1 (es) | 1998-04-29 |
NZ312920A (en) | 1999-10-28 |
WO1997002939A1 (en) | 1997-01-30 |
AU6485896A (en) | 1997-02-10 |
ATE211053T1 (de) | 2002-01-15 |
US20010054779A1 (en) | 2001-12-27 |
CA2226230C (en) | 2003-10-21 |
US6572812B2 (en) | 2003-06-03 |
US20040256763A1 (en) | 2004-12-23 |
DE04077346T1 (de) | 2005-08-18 |
DE69635198T2 (de) | 2006-06-29 |
US6428737B1 (en) | 2002-08-06 |
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