WO2006035914A1 - フッ素樹脂コート部材、その部材から成るポリエステル容器成形金型及び該金型の再生方法 - Google Patents
フッ素樹脂コート部材、その部材から成るポリエステル容器成形金型及び該金型の再生方法 Download PDFInfo
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- WO2006035914A1 WO2006035914A1 PCT/JP2005/018042 JP2005018042W WO2006035914A1 WO 2006035914 A1 WO2006035914 A1 WO 2006035914A1 JP 2005018042 W JP2005018042 W JP 2005018042W WO 2006035914 A1 WO2006035914 A1 WO 2006035914A1
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- fluorine resin
- mold
- base
- polyester
- layer
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
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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
- B29C49/48—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
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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
- B29C2949/079—Auxiliary parts or inserts
- B29C2949/0794—Dispensing spout
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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
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—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
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—Diameter
- B29C2949/0827—Diameter of the bottom
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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
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0829—Height, length
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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
- B29C2949/0861—Other specified values, e.g. values or ranges
- B29C2949/0862—Crystallinity
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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
- B29C2949/20—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
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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
- B29C2949/20—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
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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
- B29C2949/20—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
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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
- B29C2949/20—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
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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
- B29C2949/30—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
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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
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
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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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
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- 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]
- Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
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- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24364—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] with transparent or protective coating
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- 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
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
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- 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
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
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- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
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- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- Fluororesin-coated member polyester container forming mold comprising the member force, and method for regenerating the mold
- the present invention relates to a resin composition member for molding a resin container used in beverages, foods, cosmetics, etc., and in particular, the contents of teas, water, juice, alcohol, coffee, etc.
- TECHNICAL FIELD The present invention relates to a fluorine resin coating member for forming a container such as a bottle or a cup or a tray-like polyester resin that can be filled with a product, a polyester container molding die that also includes the coating member, and a method for regenerating the mold. Is.
- Polyester containers such as PET (polyethylene terephthalate) resin are excellent in transparency, impact resistance, gas-free properties, etc., as represented by containers such as bottles, cups, and trays.
- Production, use, and manufacture are important industrial fields.
- a bottle in a polyester container has a biaxial shape in a molding die immediately after heating a preform obtained by injection molding in a temperature range of 100 ° C to 130 ° C that is equal to or higher than the glass transition temperature (Tg).
- Tg glass transition temperature
- a polyester sheet is formed by vacuum suction molding, pressure forming into a female mold (molding mold) having the shape of a container, drawing with the female mold and a plug, or similar to the bottle described above. It is manufactured by performing biaxial stretch blow molding with a plug and female mold using a preform.
- heat-resistant cups and trays used for hot filling are given heat resistance by forming female molds and plugs at a temperature equal to or higher than the crystallization temperature in the same manner as in the case of bottles. .
- the polyester bottle at the time of molding
- smoothness of the mold inner surface is required for the purpose of imparting surface gloss and transparency of the product.
- the mold is made of stainless steel or aluminum alloy. After the inner surface was cut, the surface was mirror-polished.
- This oligomer adheres even when the oligomer concentration in the resin is very small, it diffuses to the container surface during molding and becomes a high concentration, which migrates to the mold surface and produces crystalline deposits. Yes, it is known as a phenomenon unique to polyester containers.
- the mold is heated to 100 ° C to 180 ° C for the purpose of imparting heat resistance and heat-fixed, which increases the adhesion of polyester resin to the mold surface.
- the mold releasing force becomes larger and the container is easily deformed when the mold is released.
- the problem described above is an important industrial problem because it reduces production efficiency and product quality in today's high-speed mass production of polyester containers.
- Patent Documents 1 and 2 there have been proposed molds in which a plastic mold is coated with a fluorine-based resin on the mold surface to form a release film.
- a base film on the surface of the molding die and a release film made of an amorphous fluorine-resin coating film are adhered to the base film, and removal and regeneration of the release film are carried out by fluorine-based inert.
- fluorine-based inert After washing and removing the amorphous fluorine resin film with a liquid, the amorphous fluorine resin dissolved in a fluorine-based inert liquid is applied to the surface of the release film, dried and heated. It has been proposed (see Patent Document 3).
- the applicant of the present invention has proposed a mold for a polyester container in which a release film is formed by coating the surface of the mold with a fluorine-based resin for the purpose of solving the above-described problems in molding a polyester container (Patent Document 4). 5).
- Patent Document 1 Japanese Patent Laid-Open No. 4 353406
- Patent Document 2 JP-A-4-353407
- Patent Document 3 Japanese Patent Laid-Open No. 5-245848
- Patent Document 4 Japanese Patent Laid-Open No. 2002-18858
- Patent Document 5 # 112003-393189
- Patent Documents 1 to 4 it is necessary to form a fluorine resin film or to perform baking to obtain a necessary strength of the fluorine resin film when coating the fluorine resin.
- this baking when an aluminum base material is used as a metal base of the mold for the purpose of light weight, baking is carried out under a baking temperature necessary for heat melting the fluorine resin, for example, at a heating temperature of 320 ° C. If the metal base of the mold is softened, cracks in the metal base of the mold, changes in the dimensions of the mold, scratches on the surface when using the mold, and shortening the mold life, There was a problem.
- Patent Document 5 provided a heat insulating layer having a lower thermal conductivity than the metal base material on the metal base material, A fluorine resin coating member provided with a fluorine resin layer on the heat insulating layer, a mold for a polyester container that also serves as the coating member, and a manufacturing method thereof were proposed.
- the present applicant has formed a fluorine resin layer to form a part of polyester resin derived from a container such as a polyester container, polyester resin Even though it can prevent the adhesion and accumulation of oligomer components and additives, it still remains a problem in terms of abrasion resistance, peel resistance of the fluororesin layer, and glossiness and transparency of the container when manufacturing polyester containers. It turns out that there are challenges.
- the applicant of the present invention more precisely defines the surface roughness on the base material, the surface roughness of the fluororesin layer on the base material, and the coating amount thereof.
- the present inventors have found that it is preferable in terms of ensuring the abrasion resistance and peeling resistance of the oil layer and the gloss and transparency of the container in the production of the polyester container.
- the inventors have found that it is preferable to specify the base of the polyester container molding die, the fluorine resin layer, and the polishing conditions.
- an object of the present invention is to provide a fluorine resin coating member that is easy to ensure the abrasion resistance, peel resistance, glossiness and transparency of a polyester container in the production of polyester containers and the like, It is an object of the present invention to provide a polyester container molding die comprising the coating member and a method for regenerating the die.
- a fluorine resin layer is provided on a base, the surface roughness of the base is 2 to 10 degrees with a mean square slope A ql, and the coating amount of the fluorine resin layer is 0.5 to 8.
- a fluorine resin coated member having a surface roughness of 5 degrees or less with a mean square slope ⁇ q2 is provided. Where the root mean square slope ⁇ q (in degrees) is
- R A q is a parameter of surface roughness and indicates the root mean square slope of the cross-sectional curve (unit: tangent value, JIS B 0601: 2001).
- the hardness of the base surface is 250 to 2000 in Hv
- the base consists of a base material and a hard layer, and a fluorine resin layer is provided on the hard layer.
- the fluorine resin comprises an amorphous fluorine resin
- a polyester container molding die made of the above-described fluorocoating material is used. It ’s good that it ’s off! /.
- the amorphous fluorine resin layer provided on the hard surface on the base of the polyester container molding die is removed with an abrasive and made into a mirror surface, and then a new amorphous material is formed on the base surface.
- a method for regenerating a polyester container molding die provided with a high-quality fluorocoating layer is provided.
- the surface roughness of the base is 2 to 10 degrees with a mean square slope A ql and the coating amount of the new amorphous fluorine resin layer is 0.5 to 8. Surface roughness should be 5 degrees or less with root mean square slope A q2
- the hardness of the base surface is 250 to 2000 in Hv
- the base consists of a metal base and a hard layer
- the abrasion resistance and peel resistance of the fluororesin layer are improved, and when this coating member is used as a polyester container molding die, molding of a polyester container having excellent gloss and transparency is achieved. It is possible to prevent adhesion and deposition of a part of the polyester resin, or an oligomer component and an additive in the polyester resin.
- the polyester container mold can be regenerated very easily, and even after regeneration, the abrasion resistance and peel resistance of the fluororesin layer are improved, and a polyester container excellent in glossiness and transparency is obtained.
- FIG. 1 is a cross-sectional view showing a cross-sectional structure of a fluorine resin coating member of the present invention.
- the fluorine resin coating member 1 of the present invention is provided with a base 10 and a fluorine resin layer 20 that covers the surface of the base 10.
- the surface of the base 10 on which the fluorine resin layer 20 is provided is roughened by polishing such as shot blasting or sand blasting so that the surface roughness is 2 to 10 degrees, preferably 4 to 7 degrees, with a mean square slope A ql. Surface finish is processed. If the surface roughness root mean square slope A ql is less than 2 degrees, the retention of the fluorine resin layer 20 decreases, whereas if it exceeds 10 degrees, the surface smoothness of the fluorine resin layer 20 provided on the surface of the substrate 10 is reduced. It becomes difficult to get sex.
- the base 10 on which the fluorine-resin layer is provided it is preferable to use an aluminum alloy for reasons such as light weight and ease of cutting, but in addition, a magnesium alloy, a titanium alloy, or the like is used. You can also.
- the base material 11 (refer to Fig. 2) of the base 10 at the time of fluorine resin coating softens, changes in dimensions, scratches on the surface, and molds when forming a container for a polyester container mold. It is preferable because it prevents damage, scratches, and distortion of the mold, and also allows easy removal of the fluorine resin layer using an abrasive during mold regeneration and the mirror surface of the base on which a new fluorine resin layer is provided. ,.
- Hv Vickers hardness
- ⁇ Vickers hardness
- the load ( ⁇ ⁇ ) is usually 300 g when the object to be measured is a metal substrate. If the object to be measured is a thin film, etc., a measurement with a large load will result in measurement on the surface of the underlying substrate through the film, so use a load of about 25 g.
- the coating amount of the fluorine resin layer 20 provided on the surface of the base 10 is 0.5 to 8.5 g / m.
- the coating amount which is preferably 1.5 to 3 gZm 2 is less than 0.5 gZm 2 , the coating uniformity on the base 10 is impaired, and the coating defects are increased, while 8.5 g / m 2 If it exceeds 1, the rough skin derived from creep deformation during molding will increase, the gloss and transparency of the molded polyester container will decrease, and the processing cost will increase, which is not economical.
- the fluorine resin layer 20 has a property of not adhering a polyester resin resin oligomer and additives, and has a surface smoothness that can guarantee the gloss and transparency of the molded polyester container.
- the surface is heated and melted after spray coating, or if necessary, the surface is smoothed by buffing or the like so that the surface roughness is 5 degrees or less, preferably 0.5 to 3 degrees with a root mean square slope A q2 Has been processed. If the root mean square slope A q2 is less than 0.5 degrees, smooth finishing is practically difficult and time is required for polishing or the like. On the other hand, if it exceeds 5 degrees, the mirror surface of the fluorine resin layer 20 is mirror-finished. The condition may decrease and the polyester container may become cloudy.
- a ql and A q2 are more preferably A ql> A q2 in terms of maintaining strength against cohesive failure of the coating itself and peeling resistance between the coating and the base.
- any fluorine-based resin known per se is used, and examples thereof include polytetrafluoroethylene, tetrafluoroethylene Z hexane. Fluoropropylene copolymer, tetrafluoroethylene Z perfluoroalkyl vinyl ether copolymer and their epoxy resin modified, acrylic resin modified, block acrylic resin modified, tetrafluoro Polyethylene Z perfluoro (2,2-dimethyl-1,3-diquinol) copolymer is used.
- amorphous fluorine resin such as tetrafluoroethylene Z perfluoro (2,2 dimethyl-1,3 diquinol) copolymer is particularly suitable for the coating amount of the above-mentioned fluorine resin layer and the surface by heat melting. It is preferable in terms of easy control of the roughness mean square slope ⁇ q2.
- Amorphous fluorine resin is soluble in fluorine-based solvents and is applied in the form of a solvent. This makes it possible to apply a thin film.
- FIG. 2 is a cross-sectional view showing a cross-sectional structure of another fluorine resin coating member of the present invention.
- the base 10 is composed of a base material 11 and a hard layer 12, and the base material 11 made of aluminum alloy isotropic force is formed into a predetermined shape by means of cutting or the like.
- Fluorine resin layer 20 is sequentially provided on the surface of hard layer 12 and hard layer 12.
- the hard layer 12 is provided by roughening the surface of the substrate 11 by polishing such as shot blasting or sand blasting.
- the surface of the hard layer 12 on which the fluororesin layer 20 is provided is precision-finished by puffing or the like, and then the surface roughness is square mean slope square mean slope A ql by polishing such as shot blasting or sand plast.
- the surface is roughened to 2 to 10 degrees, preferably 4 to 7 degrees.
- the surface of the fluororesin layer 20 is heated and melted after spray coating, or by puff polishing or the like, the surface roughness becomes 5 degrees or less, preferably 0.5 to 3 degrees in terms of the root mean square slope A q2.
- the smooth finish is checked.
- the hard layer 12 has a Vickers hardness (Hv) of 250 to 2000, more preferably 500 to 2000. Scratches, polyester breakage molds when forming containers, breakage, scratches, and distortion are prevented, and the fluorine resin layer is removed using an abrasive during mold regeneration. This is preferred because it allows easy mirroring of the base on which a new fluorine resin layer is provided.
- Hv Vickers hardness
- the hard layer 12 is harder than the substrate 11 and is made of an alloy, a metal oxide, a ceramic, or the like.
- the hard layer 12 alloy include iron alloys such as iron-nickel alloy, nickel-chromium alloy, nickel-phosphorus alloy, nickel-boron alloy, iron-chromium alloy, iron-nickel-chromium alloy, and the like. Can be mentioned.
- metal oxide examples include aluminum oxide, chromium oxide, iron oxide, nickel oxide, and the like.
- examples of ceramics include metal nitrides such as titanium nitride and chromium nitride, and carbides such as chromium carbide. These ceramics are composed of one or more of these, or a combination force with other different ceramics.
- the hard layer 12 is preferably formed by a nickel-phosphorus alloy coating method.
- the thickness of the hard layer 12 is 2 to 100 m. If the thickness is less than 2 m, the hard layer 12 provided with a new fluorine resin layer is subjected to mirror polishing of the hard layer 12. The substrate 11 may be exposed. On the other hand, if it exceeds 100 / zm, it may be too thick to cause cracking of the hard layer 12, and it is not economically preferable.
- an adhesive film may be provided between the base 10 and the fluorine resin layer 20.
- This adhesive film improves the adhesive effect between the base 10 and the fluorine resin layer 20.
- the adhesive film include metal oxides, metal hydroxides, and silane coupling agents.
- the fluorine resin coating member of the present invention can be used as a polyester container molding die, particularly for biaxial stretch blow molding of a polyester container.
- FIG. 3 shows a method for regenerating the polyester container molding die of the present invention.
- the amorphous fluorine resin layer provided on the hard surface of the mold after use is removed with an abrasive and the hard surface is mirror-polished.
- the reason for this is that in the regeneration of the mold, it is necessary to surely remove the fluorine resin present in the fluorine resin layer and the rough surface portion of the base, and therefore the roughened surface of the base is removed.
- the mirror surface is made using an abrasive.
- the fluorine resin layer is amorphous and the surface of the base is hard, the fluorine resin layer can be easily removed completely. Can be mirrored.
- the surface of the elastic core 31 having a particle diameter of 0.3 to 0.6 mm as an abrasive is shown in FIG. It is preferable to use a polishing agent 30 coated with globule 32, such as [SP-30G] or [SP-FLLO] manufactured by Toyo Abrasive Co., Ltd., because a mirror surface can be obtained in a short time.
- a polishing agent 30 coated with globule 32 such as [SP-30G] or [SP-FLLO] manufactured by Toyo Abrasive Co., Ltd.
- Examples of the material of the coasting core 31 constituting the abrasive 30 include elastic materials such as rubber and plastic, and examples of the material of the gun barrel 32 provided on the surface of the coasting core 31 include silicon carbide and alumina. Hard fine particles such as
- the hardness of the hard surface of the base is preferably a force S of 250 to 2000 in terms of Picker's hardness (Hv), more preferably 500 to 2000 force S. Good.
- the substrate 10 In the example of the fluorine resin coated member shown in Fig. 1, it is desirable to form the substrate 10 with a force such as hard aluminum, stainless steel, or hardened steel. It is preferable to use a base material 11 made of aluminum alloy or the like and a hard layer 12 made of nickel-phosphorus alloy or the like.
- the surface roughness of the foundation from which the amorphous fluorine resin layer has been removed like the above-described fluorine resin coating member 10 or the polyester container molding mold, has a mean square slope.
- a ql is preferably 2 to 10 degrees, particularly 4 to 7 degrees, and the coating amount of the fluorine resin in the new amorphous fluorine resin layer is 0.5 to 8.5 gZm 2 , especially 1.
- surface roughness is 5 degrees or less, especially 0.5 to 3 degrees in terms of root mean square slope A q2, and the relationship between the mean square slope ⁇ ql and the mean square slope ⁇ q2 is the mean square slope Let ⁇ ql> root mean square slope ⁇ q2.
- Measurement was performed at 8 mm, scanning speed: 0.3 mmZs, and measurement length: 4 mm, and the root mean square slopes A ql and A q2 were obtained.
- the substrate 10 was measured with a load of 300 g and the hard layer 12 with a load of 25 g.
- a disk-shaped sample with a diameter of 30 mm and a thickness of 6 mm is mounted on a rotating holder, rotated at a linear speed of 3.7 mZ, and the tip of a glass rod with a spherical radius of 2.25 mm is used as the mating material.
- the peeled state after rubbing for 10 minutes was evaluated by the pin-on-disk method pressed with pressing force.
- Aluminum 7075-T651 material (hardness Hv300g: 190) was cut as the mold base, the same diameter of the month: 65mm, the height excluding the mouth: 185mm, the inner volume: 500ml, the cross-sectional shape is cylindrical A mold (two split molds) for biaxial stretch blow molding of polyester bottles was created.
- the mold is washed with alcohol, and DuPont's amorphous fluorine resin [AF2400] (glass transition point 240 ° C) is added to 3M [Fluorinert: FC77] at a concentration of 0.6 wt.
- This solution is spray-coated on the mold surface and baked in an electric furnace at 320 ° C for 30 minutes to heat and melt the fluorocarbon resin.
- the coating amount is 8.5 g / m 2 and the surface roughness is reduced.
- a fluorinated resin layer with a mean square slope ⁇ q2 of 5 degrees was formed.
- the base material hardness after baking was 90 at Hv 300g.
- Polyester resin bottom preform [25mm diameter, 100mm length including mouth part] injection-molded using polyester resin from Nippon Pet Co. Ltd. [RT543CTHP] is crystallized at 180 ° C at the mouth.
- the mold temperature 150 ° C
- pre-blow pressure 1 to 1.7 MPa
- blow pressure 3.5 MPa
- draw ratio flat in the circumferential direction
- Polyester bottles were made by biaxial stretch blow molding under conditions of an average of 3.5 times. Evaluation of the strength (adhesiveness) of the fluororesin layer in the fluororesin coated mold after making this polyester bottle, and evaluation of the adhesion of the resin component to the mold after biaxial stretch blow molding (both appearance glossiness, Transparency).
- a 13Cr Mo-containing stainless steel quenching and tempering material Hitachi Metals, Ltd., HPM38, hardness Hv300g: 550
- the fluorine resin layer it is dissolved to a concentration of 0.6 wt. Z volume%, sprayed onto the mold surface, and baked in an electric furnace at 340 ° C for 30 minutes.
- a polyester container was prepared and evaluated in the same manner. In addition, the hardness of the base material after baking was varied.
- Example 1 the surface of the aluminum 7075-T651 material for the mold base was polished and polished.
- a hard layer (hardness Hv25g: 600) with an average thickness of 20 ⁇ m, which has an electroless nickel-phosphorus alloy plating layer force, is provided on the surface of the mold as the base of the mold, and the hard layer is puffed and precision finished.
- a mold similar to that in Example 1 was prepared except that a rough surface finishing process was performed by shot blasting to make the surface roughness 2 degrees with a mean square slope A ql.
- the fluorine resin layer in the formation of the fluorine resin layer, it was dissolved to a concentration of 0.6 wt. Z volume%, sprayed onto the mold surface, and baked in an electric furnace at 360 ° C for 1.5 hours. The fat is heated and melted and the coating amount is 0.
- a fluororesin-coated mold and a polyester container similar to Example 1 were prepared and evaluated in the same manner except that a fluororesin layer having a surface roughness of root mean square A q2 of 0.5 degrees was formed. It was. The hardness of the hard layer after baking was 1200 at Hv2 5g.
- a fluorine resin-coated mold and a polyester container were prepared in the same manner as in Example 1 except that the surface roughness of the base of the fluorine resin-coated mold was set to 15 degrees with a root mean square ⁇ ql. went.
- a fluorine resin-coated mold and a polyester container were prepared in the same manner as in Example 2 except that the coating amount of the fluorine resin layer of the fluorine resin-coated mold was 12 gZm 2, and the same evaluation was performed.
- a fluorine resin-coated mold and a polyester container were prepared and evaluated in the same manner as in Example 3 except that the coating amount of the fluorine resin layer of the fluorine resin-coated mold was 0.2 gZm 2 . .
- the surface of the mold was ground on the elastic core surface having a particle diameter of 0.3 to 0.6 mm.
- sagging occurred and reproduction without a mirror surface was impossible.
- the surface of the base is again shot-blasted so that the surface roughness is 6 degrees (corresponding to the case of Example 2) or 2 degrees (corresponding to the case of Example 3) with a mean square slope A ql.
- a rough surface finishing force was applied.
- a new amorphous fluorine resin having a coating amount of 5 gZm 2 (corresponding to the case of Example 2) or 0.5 gZm 2 (corresponding to the case of Example 3) is applied to the surface of the rough-finished base.
- the surface of this amorphous fluorine-resin layer is 3 degrees (corresponding to Example 2) or 0.5 degrees (corresponding to Example 3) with a surface roughness mean square slope A q 2
- dissolution, spray coating, baking, and heat melting were performed under the same conditions as described above.
- Polyester bottles were produced by performing biaxial stretch blow molding using the regenerated fluorine resin coated mold, and the same evaluation results as in Examples 2 and 3 were obtained. Availability of
- the abrasion resistance and peel resistance of the fluorine resin layer are improved, and in particular, this is used for a bottle, cup and tray-like polyester container made of polyester resin.
- the polyester container is excellent in glossiness and transparency by preventing a part of the polyester resin, or oligomer components and additives in the polyester resin from being deposited. Molding can be possible.
- the die can be regenerated very easily, and even after regeneration, a part of the polyester resin or the oligomer component in the polyester resin. Therefore, it is possible to prevent the adhesion and accumulation of additives and to form a polyester container having excellent gloss and transparency.
- Fig. 1 is a cross-sectional view showing a cross-sectional structure of a fluorine-containing resin coating member of the present invention.
- FIG. 2 is a cross-sectional view showing a cross-sectional structure of another fluorine resin coating member of the present invention.
- FIG. 3 is a reference view showing a method for regenerating a polyester container molding die of the present invention.
- C is a cross-sectional view showing an example of an abrasive.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2582481 CA2582481A1 (en) | 2004-09-30 | 2005-09-29 | A fluoropolymer resin coated member,a metal mold for forming polyester resin container made thereof and reproducing method of said metal mold |
CN2005800332699A CN101031400B (zh) | 2004-09-30 | 2005-09-29 | 氟树脂涂布构件、由其构件组成的聚酯容器成型模具及该模具的再生方法 |
EP20050788230 EP1798015B1 (en) | 2004-09-30 | 2005-09-29 | Fluororesin-coated member and mold comprising the member for polyester container molding |
AU2005288131A AU2005288131B2 (en) | 2004-09-30 | 2005-09-29 | Fluororesin-coated member, mold comprising the member for polyester container molding, and method of regenerating the mold |
US11/664,118 US8043677B2 (en) | 2004-09-30 | 2005-09-29 | Fluropolymer resin coated member, a metal mold for forming polyester resin container made thereof and reproducing method of said metal mold |
JP2006537827A JP5075411B2 (ja) | 2004-09-30 | 2005-09-29 | ポリエステル容器成形用フッ素樹脂コート金型及びその再生方法 |
Applications Claiming Priority (2)
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JP2004289064 | 2004-09-30 | ||
JP2004-289064 | 2004-09-30 |
Publications (1)
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WO2006035914A1 true WO2006035914A1 (ja) | 2006-04-06 |
Family
ID=36119061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/018042 WO2006035914A1 (ja) | 2004-09-30 | 2005-09-29 | フッ素樹脂コート部材、その部材から成るポリエステル容器成形金型及び該金型の再生方法 |
Country Status (8)
Country | Link |
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US (1) | US8043677B2 (ja) |
EP (1) | EP1798015B1 (ja) |
JP (1) | JP5075411B2 (ja) |
KR (1) | KR20070106968A (ja) |
CN (1) | CN101031400B (ja) |
AU (1) | AU2005288131B2 (ja) |
CA (1) | CA2582481A1 (ja) |
WO (1) | WO2006035914A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008006659A (ja) * | 2006-06-28 | 2008-01-17 | Toyo Seikan Kaisha Ltd | 樹脂加工用部材 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090140469A1 (en) | 2007-01-08 | 2009-06-04 | Garrtech Inc. | One-piece blow mold halves for molding a container |
US20110159138A1 (en) | 2007-01-08 | 2011-06-30 | Garrtech Inc. | Blow mold for molding a container |
JP2013069902A (ja) * | 2011-09-22 | 2013-04-18 | Toshiba Corp | テンプレートの再生方法および再生装置 |
CN103158294A (zh) * | 2011-12-15 | 2013-06-19 | 深圳富泰宏精密工业有限公司 | 壳体及其制备方法 |
CN103173831B (zh) * | 2013-03-19 | 2016-01-20 | 江苏新美星包装机械股份有限公司 | 吹瓶机用铝合金模具的表面硬化工艺 |
US10137606B2 (en) | 2013-03-26 | 2018-11-27 | Discma Ag | Molding apparatus with hydrophobic properties and method |
EP3320016B1 (en) * | 2014-04-11 | 2023-09-20 | Dak Americas LLC | Ebm epet container drop-impact enhancement |
WO2016019268A1 (en) * | 2014-08-01 | 2016-02-04 | 3M Innovative Properties Company | Substrate with amorphous, covalently-bonded layer and method of making the same |
CN106827366A (zh) * | 2016-12-13 | 2017-06-13 | 柳州通为机械有限公司 | 汽车座椅软密封发泡模具 |
US11542985B2 (en) * | 2018-09-26 | 2023-01-03 | Ntn Corporation | Rolling bearing and wind power generation rotor shaft support device |
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- 2005-09-29 JP JP2006537827A patent/JP5075411B2/ja active Active
- 2005-09-29 CA CA 2582481 patent/CA2582481A1/en not_active Abandoned
- 2005-09-29 KR KR1020077007853A patent/KR20070106968A/ko active Search and Examination
- 2005-09-29 CN CN2005800332699A patent/CN101031400B/zh not_active Expired - Fee Related
- 2005-09-29 AU AU2005288131A patent/AU2005288131B2/en not_active Expired - Fee Related
- 2005-09-29 US US11/664,118 patent/US8043677B2/en not_active Expired - Fee Related
- 2005-09-29 WO PCT/JP2005/018042 patent/WO2006035914A1/ja active Application Filing
- 2005-09-29 EP EP20050788230 patent/EP1798015B1/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
---|---|
CN101031400B (zh) | 2010-10-06 |
EP1798015A1 (en) | 2007-06-20 |
JP5075411B2 (ja) | 2012-11-21 |
CN101031400A (zh) | 2007-09-05 |
US20080182102A1 (en) | 2008-07-31 |
CA2582481A1 (en) | 2006-04-06 |
JPWO2006035914A1 (ja) | 2008-05-15 |
EP1798015A4 (en) | 2011-11-02 |
EP1798015B1 (en) | 2014-04-09 |
AU2005288131B2 (en) | 2010-06-03 |
AU2005288131A1 (en) | 2006-04-06 |
KR20070106968A (ko) | 2007-11-06 |
US8043677B2 (en) | 2011-10-25 |
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