WO2005063469A1 - 管状物の製造方法 - Google Patents
管状物の製造方法 Download PDFInfo
- Publication number
- WO2005063469A1 WO2005063469A1 PCT/JP2004/019066 JP2004019066W WO2005063469A1 WO 2005063469 A1 WO2005063469 A1 WO 2005063469A1 JP 2004019066 W JP2004019066 W JP 2004019066W WO 2005063469 A1 WO2005063469 A1 WO 2005063469A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular body
- tubular
- styrene
- polyolefin
- layer
- Prior art date
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
- B29C65/1638—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding focusing the laser beam on the interface
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
- B29C65/168—Laser beams making use of an absorber or impact modifier placed at the interface
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
- B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
- B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7315—Mechanical 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1609—Visible light radiation, e.g. by visible light lasers
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1687—Laser beams making use of light guides
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said 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
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
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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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Definitions
- the present invention provides a method for producing a tubular article, comprising laser welding a tubular article made of a flexible thermoplastic resin composition and a tubular article made of a resin composition having higher hardness. About the method.
- Polyolefin-based resins such as polyethylene and polypropylene have high heat resistance, and are excellent in rigidity, impact resistance, and gas permeability, so they are used in household electric appliances such as televisions and videos, automobile parts such as bumpers, and the like. Frequently used for beer containers, packing bands, etc.
- thermoplastic block copolymer elastomer may be blended in order to impart flexibility to a highly rigid polyolefin resin.
- the resulting thermoplastic resin composition can be extruded products such as sheets, films, tubes and hoses, and injection molded products such as goggles, flippers, various grips, and stationery. It is frequently used in Each of these resins has unique properties, but for the purpose of expanding applications and improving products, various composites in which a plurality of different resins are bonded to form a single member have been developed.
- thermoplastic resin composition when a plurality of component products are manufactured, a molded article made of the thermoplastic resin composition is bonded to each other or a thermoplastic resin composition is bonded to another resin. There is.
- a method of applying and bonding a solvent adhesive obtained by dissolving a thermoplastic block copolymer elastomer in an organic solvent, or a method of applying and bonding a hot melt adhesive or the like are performed. I have.
- handling of the adhesive is troublesome, and the vicinity of the bonded portion may become dirty due to excess adhesive protruding.
- the time until the adhesive strength increases is long.
- the molded articles are thermally welded to each other.
- a method for example, an ultrasonic welding method.
- a vibrator conforming to the shape of the bonding area is directly applied to the bonding surface to vibrate the bonding interface, generate frictional heat, and perform welding.
- a high adhesive force is obtained, and a relatively clean finish is obtained when bonding flat surfaces.
- the applied energy is absorbed by the material members, and as a result, the bonding does not occur. Or adhesive failure.
- Another method is a high frequency welding method. This is a method in which a material is sandwiched between a mold and a support to apply a high frequency to heat the material itself.
- Thermoplastic resin compositions containing polyolefin resin have very small dielectric loss and are difficult to generate heat. Therefore, the mold needs to have a heated structure.
- a pressing step is required for bonding, the molded product may be deformed by the pressing pressure, or the appearance may be impaired, such as a molten material protruding.
- Polyolefin resin is excellent in heat resistance, rigidity, impact resistance, transparency, etc., and is used for monitoring contamination of impurities by visual inspection or by using an inspection device such as a laser.
- Demand is high for applications that require transparency to monitor contamination, or for tubes that can be used to observe the internal contamination of tubular objects and determine when to replace them. Therefore, it is not easy to adhere to other resins while maintaining high airtightness, and it is particularly difficult to secure transparency and adhesion at the same time.
- an auxiliary material such as carbon black is added to the material, so that the joint may be colored black and become opaque in the visible light region. For this reason, it is not suitable for applications requiring transparency and visibility of the molded product.
- the method described in Japanese Patent Application Laid-Open No. 2003-181931 is suitable for bonding between flat surfaces, but when bonding a curved surface shape, a rhombus shape, or a cylindrical shape, the bonding area The operation of setting the film on the surface becomes troublesome and the operation is complicated when mass production is performed.
- an object of the present invention is to provide a method for easily attaching a tubular body made of a resin containing polyolefin to produce a long tubular article.
- the tubular article was formed of a thermoplastic resin composition containing a styrene-based elastomer and a polyolefin-based resin.
- a thermoplastic resin composition containing a styrene-based elastomer and a polyolefin-based resin.
- the permeability of both tubular bodies is improved.
- the inventors have found that a tubular article that can be welded while maintaining lightness and has excellent adhesive strength can be manufactured, and the present invention has been completed.
- the adhesive strength is excellent, and the adhesive surfaces can be closely contacted and connected even without the pressing process.
- the mixing ratio of the styrene-based elastomer and the polyolefin-based resin in the tubular body (a) excellent adhesion is maintained. Flexibility according to the application and required physical properties of the product can be secured as it is.
- the tubular body (b) made of a polyolefin resin has a layer made of a thermoplastic resin composition containing a styrene elastomer and a polyolefin resin.
- the appearance can be improved.
- And can be bonded with high bonding strength.
- it is not necessary to irradiate an excessive laser beam it is likely to occur during processing and deformation of the molded body can be prevented.
- the tubular article of the present invention is a connected body of a flexible tubular article (a) and a high-hardness tubular article (b), and is a toy or a daily necessity that needs to be made of resin having different characteristics. It can be used for a wide range of applications such as food containers, sundries, light electrical parts, automobile parts, medical tools, and industrial parts. Such applications include transporting fluids, monitoring impurities for contamination or using a laser or other inspection device, or applications requiring transparency to monitor fluid contamination. It is suitably used for a tube or the like which can determine the replacement time by observing the internal dirt of a tubular object.
- FIG. 1 is a view showing a semiconductor laser irradiation apparatus used in Examples and Comparative Examples.
- FIG. 2 is a view showing a method of joining tubular bodies adhered in Examples 13 and 13 and Comparative Example 1.
- 18 is a single-layer tubular body (cross section)
- 19 is a single-layer tubular body (base material A)
- 20 is a single-layer tubular body (base material B)
- 21 is a single-layer tubular body (base material C).
- 22 indicate an absorbent.
- FIG. 3 is a view showing a method of joining a tubular body and a tubular body adhered in Example 4.
- 23 is a three-layered tubular body (substrate A: cross section)
- 24 is a three-layered tubular body (substrate A)
- 25 is a single-layered tubular body (substrate B)
- 26 is a three-layered multilayer body Tubular body (substrate C)
- 27 indicates an absorbent.
- FIG. 4 is a view showing a joining method of a bonded tubular body in Examples 5 and 6, and Comparative Example 2.
- 28 is a three-layered tubular body (substrate A: cross section)
- 29 is a three-layered tubular body (substrate A)
- 30 is a single-layered tubular body (substrate B)
- 32 is an absorbent.
- Numeral 33 indicates a three-layer multilayer tubular body (base material C)
- 39 indicates a three-layer multilayer tubular body (base material C: cross section).
- FIG. 5 is a view showing a joining method of a tubular body adhered in Examples 7-9.
- FIG. 1 is a view showing a joining method of a tubular body adhered in Examples 7-9.
- 34 is a three-layered tubular body (substrate A: transverse section), 35 is a three-layered tubular body (substrate A), 36 is a single-layered tubular body (substrate B: connector), and 37 is 3 A multilayer tubular body (base material C), 38 indicates an absorbent.
- FIG. 6 is a view schematically showing a joint when a tubular body is inserted and joined.
- reference numeral 10 denotes a joint
- 20 denotes a single-layer tubular body (substrate B)
- 22 denotes an adsorbent
- 23 denotes a three-layer multilayer tubular body (substrate A).
- a first aspect of the present invention is a thermoplastic resin composition containing a tubular body (a) having a layer made of a thermoplastic resin composition (A) containing a styrene-based elastomer and a polyolefin resin, and a polyolefin.
- the ratio of the outer diameter of the thin tube to the inner diameter of the thick pipe Absorbed by the tubular bodies (a) and Z or the tubular body (b) at the joint between the tubular body (a) and the tubular body (b) in a relationship of 1 ⁇ X ⁇ 1.25.
- the storage elastic modulus of the tubular body (a) is 1.0 ⁇ 10 7 —6.7 ⁇ 10 8 Pa, and the storage elastic modulus of the tubular body (b) is 2 ⁇ 10 7 —9 ⁇ 10 8 Pa. And a tubular body (b) having a higher storage elastic modulus than the tubular body (a).
- the related tubular body (a) and the tubular body (b) are joined by insertion, and laser welding is performed on the tubular body (a) via the absorbent to uniformly and closely adhere the tubular bodies having curved surfaces. The point is to manufacture a tubular article.
- the objects to be bonded are overlapped and bonded, and a laser beam is irradiated through a laser light absorbing agent to bond the objects to be bonded with a strength higher than a physical contact pressure.
- the tubular body When they were joined by inserting one into the other, they found that the higher the pressure on the bonding surface, the higher the bonding strength after laser welding, and evaluated the ease of insertion and adhesion.
- the “small tube” and the “thick tube” are defined as the thin tube inside when both are inserted and joined regardless of their inner diameter and outer diameter.
- the outside tubular body is a thick tube. If the ratio of the outer diameter of the thin tube to the inner diameter of the thick tube is 1 or less, insertion is easy, but a gap is formed at the connection between the thick tube and the thin tube, and uniform adhesion by laser welding becomes difficult. On the other hand, when the ratio of the outer diameter of the thin tube to the inner diameter of the thick tube is 1.25 or more, high bonding strength can be achieved by laser welding with high bonding surface pressure, but it becomes difficult to insert and join the thin tube and the thick tube. . If X is 1.25 or more, insertion of the tubular body may be difficult.
- any of the tubular body (a) and the tubular body (b) may be a thin tube or a thick tube. Therefore, the tubular body (b) having high hardness may be connected as a thin tube, and the flexible tubular body (a) may be connected as a thick tube, and the tubular body (b) may have a different shape in which both ends have different inner and outer diameters.
- a tubular body one is inserted into the inside diameter of the tubular body (b) using the tubular body (a) as a thin tube, and the other is inserted into the inside diameter of the tubular body (a) as a thick tube. They may be connected.
- the cross-sectional shapes of the tubular bodies (a) and (b) may be circular or elliptical.
- the styrene-based elastomer used in the thermoplastic resin composition (A) includes a block copolymer comprising an aromatic vinyl polymer block (I) and a conjugated gen-based polymer block or a hydrogenated block (II) thereof. It is preferably a polymer.
- the aromatic vinyl polymer block (I) is composed of aromatic vinyl monomer units, and examples of such a monomer include styrene, ⁇ -methylstyrene, 4-methylstyrene, and 4-propylstyrene. , 4-cyclohexylstyrene, 4-dodecylstyrene and the like. Of these, styrene and para-methylstyrene are preferred in terms of cost. Therefore, polystyrene or poly ⁇ -methylstyrene is preferably used as the aromatic vinyl polymer block.
- the content of the aromatic butyl monomer unit in the styrene-based elastomer is preferably from 10 to 40% by mass, more preferably from 15 to 30% by mass.
- Aromatic vinyl If the content of the monomer unit is less than 10% by mass, the mechanical strength of the styrene-based elastomer may decrease. On the other hand, when the content of the aromatic butyl monomer exceeds 40% by mass,
- the melt viscosity of the styrene-based elastomer increases, and it becomes difficult to uniformly mix the styrene-based elastomer with the polyolefin-based resin, and there is a case where molding processing is restricted.
- the number average molecular weight of the aromatic butyl polymer block (I) is not particularly limited, but is generally preferably in the range of 2,500 to 20,000. Within this range, flexibility and moldability will be excellent.
- conjugated gen-based polymer block or its hydrogenated polymer block ( ⁇ ) at least one kind of polyisoprene block, isoprene Z-butadiene copolymer block, and polybutadiene block power and a group power of at least one is selected. It is preferably a polymer block.
- polyisoprene in which the content of 1,2-linkage units and 3,4-linkage units is 10 to 75 mol% and 70% or more of carbon-carbon double bonds are hydrogenated (2) Contains isoprene Z-butadiene at a ratio of 5Z95-95Z5 (mass ratio), the content of 1,2-bond units and 3,4 bond units is 20-85 mol%, and the content of carbon-carbon double bonds is 70%.
- % Or more is hydrogenated isoprene butadiene copolymer or (3) a polybutadiene having a 1,2 bond unit content of 5 mol% or more and 70% or more of carbon-carbon double bonds hydrogenated. .
- the reason is that the compatibility with the polyolefin resin is improved, and the transparency is improved.
- the number average molecular weight of the conjugated polymer block and the hydrogenated polymer block is not particularly limited, but is preferably 10,000 to 200,000.
- the aromatic butyl polymer block is made of polystyrene or poly ⁇ -methylstyrene
- the conjugated gen-based polymer block is made of polyisoprene or isoprene. It is preferable that copolymerization of butadiene, polybutadiene or a hydrogenated product thereof is also obtained. This is because it is excellent in flexibility and can ensure transparency.
- the bonding mode between the aromatic vinyl polymer block and the conjugated gen-based polymer block is not particularly limited, and may be linear or branched, or any combination thereof.
- the molecular structure of the styrene-based elastomer is represented by (I) for the aromatic butyl polymer block and ( ⁇ ) for the conjugated gen-based polymer block or its hydrogenated polymer block.
- n is a natural number
- any of block copolymers represented by ( ⁇ - ⁇ ) ⁇ or ( ⁇ - ⁇ ) ⁇ may be used.
- the styrenic elastomer one of the above block copolymers may be used alone or two or more of them may be used in combination.
- a triblock type and a diblock type may be mixed.
- two or more compounds having different molecular structures may be used in combination.
- the number average molecular weight of the styrenic elastomer used in the present invention is from 30,000 to 300,000.
- the polyolefin resin used for the tubular body (a) of the present invention includes polyethylene such as high-density polyethylene, low-density polyethylene, linear low-density polyethylene, and high-pressure ethylene- ⁇ -olefin copolymer.
- polyethylene such as high-density polyethylene, low-density polyethylene, linear low-density polyethylene, and high-pressure ethylene- ⁇ -olefin copolymer.
- examples include resins, homopolypropylene, random copolymers of ethylene and propylene, block-type polypropylene resins containing ethylene blocks, and cyclic polyolefins.
- polypropylene resin and cyclic polyolefin are preferable.
- the polyolefin resins may be used alone or in combination of two or more.
- the melt viscosity of the polyolefin resin used in the present invention is such that the melt flow rate (MFR) when measured at 230 ° C and a load of 2160 g according to ASTM-1238 is in the range of 0.1 to 500. Is more preferably in the range of 2 to 200. If the melt flow rate is in the above range, the moldability is excellent.
- MFR melt flow rate
- thermoplastic ⁇ composition (A) comprises the above styrene-based elastomer one and polyolefin-based ⁇ , the content of the styrene-based elastomer one in the composition Dearuko 5- 85 weight 0/0 a force transducer preferred, more preferably 20-80 mass 0/0. If the styrene-based elastomer exceeds 85% by mass, the material may have anisotropy such as moldability, agglutinability, and hardness differences between the longitudinal and transverse directions.
- the content is less than 5% by mass, for example, when used for food or medical purposes, when irradiated with radiation for the purpose of sterilization and sterilization, the molecular weight of polypropylene may be reduced and the physical properties of the material may be reduced.
- the preferable blending amount of the polyolefin resin is 15 to 95% by mass in the composition (A).
- thermoplastic resin composition (A) may contain a process oil within a range that does not impair the properties of the thermoplastic resin composition (A).
- a process oil that can be blended, any of a noraffinic, naphthenic, aroma-based process oil, or a mixture thereof can be used. Among them, paraffin-based process oil is preferably used.
- thermoplastic resin composition (A) may contain various other additives as required within the range without impairing the transparency.
- additives include inorganic fillers, lubricants, various stabilizers, antiblocking agents, weather resistance improvers, processing aids, and the like.
- the method for preparing the thermoplastic resin composition (A) is not particularly limited, and can be adjusted by mixing using a known method. For example, it is adjusted by uniformly mixing using a kneader such as a single-screw extruder, a twin-screw extruder, an eder, a Banbury mixer, and a roll.
- a kneader such as a single-screw extruder, a twin-screw extruder, an eder, a Banbury mixer, and a roll.
- the tubular body (a) has a layer comprising the thermoplastic resin composition (A) containing a styrene-based elastomer and a polyolefin-based resin.
- the tubular body (a) used in the present invention may be a single-layer structure of a layer that also has the above-mentioned thermoplastic resin composition (A), but may be a laminate of two or more layers including the layer. Is also good. In this case, the layer may be included in any of the laminates. Therefore, regardless of the force of the tubular body (a) being a thin tube or a thick tube, it may be any of an inner layer, an intermediate layer, and an outer layer.
- the layer composed of the thermoplastic resin composition (A) is rich in elasticity due to the above-mentioned structure, so that it has high flexibility at the joining portion, and therefore, it is easy to insert and join the tubular body (b). And increase the adhesive strength by laser welding.
- the layer made of the thermoplastic resin composition (A) is formed of the entirety of the tubular body (a). It does not need to be stacked over the whole.
- the composition (A), which is also a layer that also has a force is the laminate of the laminate that forms the insertion joint with the tubular body (b). Should be included in any of the layers.
- the layer which also has the above composition (A) contains a polyolefin resin, it has excellent affinity with the tubular body (b) also containing a polyolefin resin, so that the contact layer with the tubular body (b) is excellent. It is preferable to configure
- the storage elastic modulus of the tubular body (a) is 1. OX 10 7 —6.7 X 10 8 Pa, preferably 1.
- the tube may not be stiff and may be difficult to handle, while if it exceeds 6.7 X 10 8 Pa, the tube may be hard and soft. This is disadvantageous in that the softness may decrease.
- the “storage elastic modulus” in the specification of the present application is a value measured by the method described in the section of Examples described later. The storage elastic modulus was used as an evaluation criterion because a correlation was obtained with the flexibility of the tube. Regarding the storage elastic modulus, it is preferable that at least the joint with the tubular body (b) satisfies the above condition.
- the radial displacement u is given by the following equation (1).
- the radial displacement u is inversely proportional to the longitudinal elastic modulus E. Therefore, as the E value increases, u decreases.
- the storage elastic modulus of the body (b) was also limited to a predetermined range. It can be understood from the above equation (1) that when X exceeds the predetermined range, a large insertion force is required.
- the haze value of the tubular body (a) is preferably 40% or less. Above 40% transparency may be impaired.
- the shape of the tubular body (a) used in the present invention is a tubular body having a through-hole, and if at least a joint with the tubular body (b) has smoothness suitable for joining, other portions may be used.
- the shape is not limited, and can be appropriately selected according to the application. Therefore, in addition to a long object having the same inner diameter and outer diameter over the entire length of the tubular body, for example, the inner diameter at both ends of the tubular body may be different in shape from the inner and outer diameters at both ends of the tubular body. And the outer diameter are the same, but the intermediate portion may be different from the inner and outer diameters at both ends.
- Such a tubular body can be manufactured by a conventional method for manufacturing a tubular body.
- the same resin as that used for the tubular body (a) can be used.
- the polyolefin resin blended in the tubular body (a) and the tubular body (b) may be the same or different.
- the content of polyolefin in the thermoplastic resin composition (B) containing polyolefin is preferably 20 to 100% by mass, more preferably 40 to 100% by mass, and particularly preferably 60 to 100% by mass. — 100% by weight. If the content is less than 20% by mass, the insertability may decrease due to the stickiness inherent to the material, or the rigidity / impact resistance, which is a characteristic of polyolefin, may be poor.
- thermoplastic resin composition (B) containing polyolefin examples include styrene-based elastomers, polyolefin-based elastomers, and urethane-based elastomers described in the section of the tubular body (a). There is.
- the other resin constituting the thermoplastic resin composition (B) is preferably a styrene-based elastomer.
- thermoplastic resin composition (B) may contain various other additives as required within the range without impairing its properties.
- additives include an inorganic filler, a lubricant, various stabilizers, an anti-blocking agent, a weather resistance improver, and a processing aid.
- the storage modulus of the tubular body (b) is, 2 X 10 7 - is 9 X 10 8 good Mashiku than the preferred instrument be Pa 10 X 10 7 - a 9 X 10 8 Pa. If it is less than 2 X 10 7 Pa, the mold releasability may be reduced, especially in the case of injection molding.On the other hand, if it exceeds 9 X 10 8 Pa, the crystallinity will increase and the haze value will increase, and the visibility will increase. This is disadvantageous because the property may be reduced. Further, the storage elastic modulus of the tubular body (b) is preferably higher than that of the tubular body (a). The reason is that the tube is easy to insert during assembly and the material cost is low. In addition, regarding the characteristics of the storage elastic modulus, it is preferable that at least the joint with the tubular body (a) satisfies the above condition.
- the haze value of the tubular body (b) is preferably 85% or less, more preferably 70% or less. If it exceeds 85%, transparency may be impaired, making it difficult to view the contents. When used for food or medical use, it is preferable that the contents such as air bubbles can be confirmed. Therefore, the haze value is preferably low!
- the tubular body (b) used in the present invention is a thermoplastic resin composition containing the above polyolefin ( B), the shape of which is a tubular body having a through-hole and any shape of other parts is not limited as long as at least the joint with the tubular body (a) has smoothness suitable for joining. They can be selected as appropriate. Accordingly, in addition to a long object having the same inner diameter and outer diameter over the entire length of the tubular body, for example, the inner diameters at both ends of the tubular body may be formed to have different inner and outer diameters at both ends. And the outside diameter are the same, but the middle part is different from the inside and outside diameters at both ends.
- the tubular body (b) can be manufactured by a conventional method.
- the tubular body (b) may have a shape such as a connector for connecting the tubular body (a).
- the joining method of the tubular body (a) and the tubular body (b) is not limited. Therefore, for example, a thick tube with an obliquely cut end is inserted into a thin tube with a vertical end, or the thin tube is physically expanded for a short time at the time of joining the tubular bodies, and after the thick tube is inserted, It is possible to adopt a method of returning to the inside diameter of.
- an absorbent having an absorption wavelength of 700-2,500 nm is interposed between the tubular bodies (a) and Z or the tubular body (b).
- the “joining part” is not limited to the contact surface between the tubular body (a) and the tubular body (b), and the absorbent is interposed inside the thin tube and outside the thick tube, or the tubular body (a)
- any layer of the laminated body may contain an absorbent.
- the joint may contain an absorbent.
- Figure 6 shows an example of the location of such an absorbent. Therefore, the term "intervening step" in the present invention means to include a dye such as an absorbent in a layer to be an adhesive portion of the laminate, or to apply an absorbent to the surface of the adhesive portion by any method! , U.
- Examples of the absorbent having an absorption wavelength of 700 to 2,500 nm used in the present invention include dyes such as phthalocyanine, cyanine, amidium, imidomium, squarium, polymethine, anthraquinone, and carbon black.
- dyes such as phthalocyanine, cyanine, amidium, imidomium, squarium, polymethine, anthraquinone, and carbon black.
- black pigments such as black pigments and paints for plastics, can also be used.
- dyes are used as the absorbent, they are suitably used for applications having transparency. The amount used is within the range conventionally used for laser welding. You can enclose it.
- a solvent, a polymer solution, or a substance added to a paint is applied to one or both of the tubular body (a) and the tubular body (b), or a thermoplastic resin is used. It may be added to the composition (A) or (B) in advance.
- Application methods include the dive method and brushing, spray coating, ink-jet printing used for printers for printing, screen printing, nod printing, and tapes and transfer films that have been coated with an absorbent. There is a method of sticking.
- a solvent for dissolving the above absorbent isopropanol, acetone, methanol, tetrahydrofuran, chloroform-form, cyclohexane, butyl acetate, xylene, toluene and the like are preferable, and chroma-form and cyclohexane are more preferable.
- the concentration of the absorbing agent is preferably 0.5 001-0. 3 wt%, more preferably 0. 01-0. 2% by weight, rather more preferably is 0.1 02-0. 1 mass 0/0. If thinner than 0.001 mass 0/0 is insufficient calorific during laser welding, the cost becomes high disadvantageously exceeds 0.3 mass%.
- the width is preferably 1 to 50 mm, more preferably 2 to 20 mm, and further preferably 3 to 7 mm. If the width is smaller than lmm, the strength of the welded portion will be insufficient, and if it exceeds 50mm, the workability will be poor.
- the tubular body may be subjected to surface treatment by corona treatment, plasma treatment, flame treatment, acid treatment or the like, followed by coating or sticking.
- the laser used in the laser bonding of the present invention easily transmits transparent resins such as a general semiconductor laser (wavelength: 800 to 960 nm) and a YAG laser (wavelength: 1096 nm)! / ⁇ It is desirable to use a near-infrared laser. If the wavelength is higher, the thermoplastic resin composition (A) or polyolefin resin absorbs the laser, making bonding difficult. There is a match.
- semiconductor lasers are relatively inexpensive, have the advantage of higher heat conversion efficiency than lasers of other wavelengths, and are preferred because they can reduce power consumption.
- elution of the adhesive from the bonding portion can be avoided, and the safety of the obtained tubular body can be improved.
- the tubular article of the present invention is obtained by laser-welding the above tubular article ( a ) and the tubular article (b), and by using an optimal tubular article according to the application, various hollow molded articles can be obtained.
- These applications include, for example, toys, daily necessities, food containers, miscellaneous goods, light electrical parts, medical supplies, automobile parts, industrial parts, and the like.
- it is a tubular material that requires transparency and is suitable for food and medical supplies that require high airtightness of joints, and other applications that require observation of the contents in transporting fluids.
- the use of the method of the present invention in the production of foods and medical supplies is preferred in terms of safety because it is possible to avoid eluates such as adhesives from the tubular body.
- the number average molecular weight of each polymer block of the styrene-based elastomer and the entire number average molecular weight (Mn) of the styrene polymer block can be determined by GPC measurement in terms of polystyrene.
- the hydrogenation rate of the styrene-based elastomer was measured by measuring the iodine value of the styrene-based elastomer before and after hydrogenation, and the hydrogenation rate (%) was calculated from the measured values.
- the amount of Bull bonds in the soft block polymer block of the styrenic elastomer was measured by NMR, and the spectral force of the blocks was calculated.
- the storage elastic modulus of the thermoplastic resin composition was measured by the following method. First, test specimens (width 3 mm ⁇ length 20 mm ⁇ thickness lmm) were cut out from a sheet-like or cylindrical molded body. The test piece was measured under the following conditions using a tensile dynamic viscoelasticity device (manufactured by Rheology Co., Ltd., “DVE-4: FT Leos Spectra-1”).
- Static load Automatic static load control
- the haze value was measured by the following method. In the case of single-layer and multi-layer cylindrical moldings, test specimens (cylindrical, length 50 mm) were cut out, cut vertically, and the curvature was corrected to a flat surface. These test pieces were measured under the following conditions using a fully automatic direct reading haze computer (manufactured by Suga Test Instruments, “H GM-2DP (for C light source)”). Since it is difficult to bend the substrate B of 3, and the comparative example 2, a sheet-like molded body of a test piece (50 mm long ⁇ 50 mm wide ⁇ lmm thick) was newly prepared and substituted.
- H GM-2DP for C light source
- Nodogen lamp (12V, 50W)
- Haze (%) (Diffuse transmittance (%) / Total light transmittance (%)) X 100
- a polystyrene-type polyisoprene-polystyrene type block copolymer was obtained.
- the obtained block copolymer was subjected to a hydrogenation reaction in cyclohexane with PdZC as a catalyst under a hydrogen atmosphere of 1.96 Mpa for 10 hours, and a triblock copolymer composed of polystyrene, polyisoprene, and polystyrene was obtained.
- styrene-based elastomer a triblock copolymer composed of polystyrene, polyisoprene, and polystyrene was obtained.
- the obtained hydrogenated triblock copolymer had a number average molecular weight of 110,000, a Bull bond content of 55%, and a hydrogenation rate of 80%.
- thermoplastic polymer composition pellets were supplied to a single screw extruder 3 (“PFE-50” manufactured by TAKAYASU IRON WORKS LTD) and passed through a circular die of circular type at a set temperature of 200 ° C. Extrusion was performed to obtain single-layer tubular bodies (base materials A and C) having an outer diameter of 6 mm and an inner diameter of 4 mm.
- Example 1 The same operation as in (1) of Example 1 was performed except that the mixing ratio of the styrene-based elastomer and the polypropylene (styrene-based elastomer: polypropylene) was changed to 50% by mass: 50% by mass.
- Example 1 (3) Using two single-walled tubes (base material 8, C) and a single-layered tube (base material B) via the absorbent used in (3) of Example 1, Both substrates were joined under the same conditions as in Example 1 (3).
- Table 1 shows the elastic modulus, haze value, and adhesiveness of the substrates B and C.
- Example 1 The same operation as in (1) of Example 1 was carried out except that the mixing ratio of the styrene-based elastomer and the polypropylene (styrene-based elastomer: polypropylene) was changed to 30% by mass: 70% by mass.
- thermoplastic polymer composition pellets (9-2) were converted into a single screw extruder 1 ("PSV22J", manufactured by Praengi Co., Ltd.), and the thermoplastic polymer composition pellets (9-1) were converted into a single screw extruder 2 ( RPsV22j manufactured by PLAENAGE CO., LTD., And thermoplastic polymer composition pellets (9-3) are supplied to a single screw extruder 3 ("PFE-50" manufactured by TAK AYASU IRON WORKS LTD), and the temperature is set to 200 ° C Extrusion was performed through a circular die of a circular shape type to obtain two three-layer multilayer tubular bodies (base material 8, C) having an outer diameter of 6 mm and an inner diameter of 4 mm.
- the tube composition is thermoplastic polymer composition pellets (92), (9-1), and (9-3) in the order of outer layer, intermediate layer, and inner layer, and the thickness composition ratio is 0.04: 99.2. : 0.04.
- the inner layer was made of polypropylene, and the thickness composition ratio was 0.025: 0.95: 0.025.
- Example 6 The same operation as in (1) of Example 6 was performed to obtain two three-layer multilayer tubular bodies (base material 8, C) having an outer diameter of 12 mm and an inner diameter of 8 mm.
- the inner layer Polypropylene and thickness composition ratio is 0.025: 9.95 : 0.025.
- the material was supplied to WORKS LTD “PFE-50”), and a connector (substrate B) having an outer diameter of 15 mm and an inner diameter of 10 mm and a central inner part further having a convex portion was formed at 230 ° C.
- base material B base material having an outer diameter of 15 mm, an inner diameter of 11 mm, and a central inner portion further having a convex portion was formed.
- Example 7 In the same manner as in Example 7, two three-layer multilayer tubular bodies (base material 8, C) having an outer diameter of 12 mm and an inner diameter of 8 mm were obtained.
- styrenic elastomer one 40 mass 0/0 was replaced by a polypropylene 60 mass 0/0 in the same manner as in Example 1 (1), a single-layer tubular body having an outer diameter of 15mm and inner diameter of 11 mm ( Substrate B) Got.
- a single-layer tubular body having an outer diameter of 3 mm and an inner diameter of lmm was operated in the same manner as in (1) of Example 1 except that polypropylene was used instead of the styrene-based elastomer and polypropylene.
- a single-layer tubular body (base material B) having an inner diameter of 2.7 mm and an outer diameter of 4.7 mm was obtained.
- Example 5 Same as Example 5 except that the outer diameter of the base material B was changed to 13.6 mm and the inner diameter to 9.6 mm, and the outer diameter of the base material C was changed to 14.8 mm and the inner diameter to 10.8 mm. In operation, substrates 8, B and C were produced.
- the tubular article (a) and the tubular article (b) are firmly adhered to each other, and the force does not impair the transparency of the tubular article.
- This is useful for applications where the contamination is monitored visually or by using an inspection device such as a laser, where there is a problem with the incorporation of air bubbles in the fluid, where observation is required, and where there is a problem with the internal contamination of the molded article (tube). It is for.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/584,460 US20070151970A1 (en) | 2003-12-26 | 2004-12-21 | Method for production of tubular article |
JP2005516584A JP4567601B2 (ja) | 2003-12-26 | 2004-12-21 | 管状物の製造方法 |
ES04807423.1T ES2526193T3 (es) | 2003-12-26 | 2004-12-21 | Procedimiento para la fabricación de un artículo tubular |
EP04807423.1A EP1698446B1 (en) | 2003-12-26 | 2004-12-21 | Method for manufacturing tubular article |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003434859 | 2003-12-26 | ||
JP2003-434859 | 2003-12-26 |
Publications (1)
Publication Number | Publication Date |
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WO2005063469A1 true WO2005063469A1 (ja) | 2005-07-14 |
Family
ID=34736575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/019066 WO2005063469A1 (ja) | 2003-12-26 | 2004-12-21 | 管状物の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070151970A1 (ja) |
EP (1) | EP1698446B1 (ja) |
JP (1) | JP4567601B2 (ja) |
ES (1) | ES2526193T3 (ja) |
WO (1) | WO2005063469A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007136371A (ja) * | 2005-11-18 | 2007-06-07 | Toyota Boshoku Corp | 多孔質繊維成形体及びその製造方法 |
JP2007260957A (ja) * | 2006-03-27 | 2007-10-11 | Ube Ind Ltd | パイプ形状品のレーザー溶着用継手およびパイプ形状品のレーザー溶着方法 |
JP2007296857A (ja) * | 2005-09-21 | 2007-11-15 | Orient Chem Ind Ltd | レーザー溶着体 |
EP2444237A1 (de) | 2006-04-06 | 2012-04-25 | Fresenius Medical Care Deutschland GmbH | Durchstrahllaserschweißverfahren für die Verbindung von Kunststoffformkörpern |
WO2013065452A1 (ja) * | 2011-10-31 | 2013-05-10 | 三菱重工業株式会社 | ライニング用組成物及びライニング施工方法 |
JP2014140565A (ja) * | 2013-01-25 | 2014-08-07 | Kaneka Corp | 医療用チューブの製造方法およびカテーテル |
JP2019502078A (ja) * | 2015-12-14 | 2019-01-24 | ウィルマーク ホールディングス, エルエルシー | 同心状に層化された材料のレーザ誘発シール |
JP2020002559A (ja) * | 2018-06-26 | 2020-01-09 | 積水化学工業株式会社 | 接着剤及び配管構造 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2973653B1 (fr) * | 2011-04-07 | 2014-02-07 | Plymouth Francaise Sa | Element elastique recyclable en tant que composant d'un equipement de protection individuelle |
JP6073643B2 (ja) * | 2012-10-25 | 2017-02-01 | 株式会社小糸製作所 | 車両用ランプとその製造方法 |
CN103640212B (zh) * | 2013-12-21 | 2016-05-11 | 厦门建霖工业有限公司 | 过水组件激光焊接工艺 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0542336B2 (ja) * | 1985-12-17 | 1993-06-28 | Honda Motor Co Ltd | |
JP2511643B2 (ja) * | 1991-11-29 | 1996-07-03 | シュナイダー・(ユーエスエイ)・インコーポレーテッド | バル―ンカテ―テル |
JP2001071384A (ja) | 1999-09-01 | 2001-03-21 | Toyota Motor Corp | 樹脂部材のレーザー溶着方法 |
JP2002526261A (ja) | 1998-10-01 | 2002-08-20 | ザ ウェルディング インスティチュート | 溶接方法 |
JP2003181931A (ja) | 2001-12-21 | 2003-07-03 | Yasuo Kurosaki | 熱可塑性透明樹脂部材のレーザー接合方法 |
US20030138582A1 (en) | 2002-01-23 | 2003-07-24 | Scimed Life Systems, Inc. | Medical devices comprising a multilayer construction |
JP2004090628A (ja) * | 2002-07-09 | 2004-03-25 | Ube Ind Ltd | パイプ形状品の接合方法 |
JP2004114456A (ja) * | 2002-09-25 | 2004-04-15 | Fine Device:Kk | 管材の接合方法及び接合装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0417313B1 (en) * | 1989-03-20 | 1995-11-29 | Idemitsu Kosan Company Limited | Styrenic copolymer and production thereof |
JPH04361168A (ja) * | 1991-06-08 | 1992-12-14 | Horiba Ltd | 電磁誘導式導電率計 |
US5356709A (en) * | 1992-05-14 | 1994-10-18 | Baxter International, Inc. | Non-PVC coextruded medical grade port tubing |
US6391972B1 (en) * | 1998-04-22 | 2002-05-21 | Heiwa Kagaku Kogyosho Co., Ltd. | Plastic articles |
US20020100540A1 (en) * | 1998-07-10 | 2002-08-01 | Alexander Savitski | Simultaneous butt and lap joints |
US20040056006A1 (en) * | 1998-10-01 | 2004-03-25 | The Welding Institute | Welding method |
LU90784B1 (en) * | 2001-05-29 | 2002-12-02 | Delphi Tech Inc | Process for transmission laser welding of plastic parts |
-
2004
- 2004-12-21 ES ES04807423.1T patent/ES2526193T3/es active Active
- 2004-12-21 JP JP2005516584A patent/JP4567601B2/ja active Active
- 2004-12-21 WO PCT/JP2004/019066 patent/WO2005063469A1/ja active Application Filing
- 2004-12-21 US US10/584,460 patent/US20070151970A1/en not_active Abandoned
- 2004-12-21 EP EP04807423.1A patent/EP1698446B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0542336B2 (ja) * | 1985-12-17 | 1993-06-28 | Honda Motor Co Ltd | |
JP2511643B2 (ja) * | 1991-11-29 | 1996-07-03 | シュナイダー・(ユーエスエイ)・インコーポレーテッド | バル―ンカテ―テル |
JP2002526261A (ja) | 1998-10-01 | 2002-08-20 | ザ ウェルディング インスティチュート | 溶接方法 |
JP2001071384A (ja) | 1999-09-01 | 2001-03-21 | Toyota Motor Corp | 樹脂部材のレーザー溶着方法 |
JP2003181931A (ja) | 2001-12-21 | 2003-07-03 | Yasuo Kurosaki | 熱可塑性透明樹脂部材のレーザー接合方法 |
US20030138582A1 (en) | 2002-01-23 | 2003-07-24 | Scimed Life Systems, Inc. | Medical devices comprising a multilayer construction |
JP2004090628A (ja) * | 2002-07-09 | 2004-03-25 | Ube Ind Ltd | パイプ形状品の接合方法 |
JP2004114456A (ja) * | 2002-09-25 | 2004-04-15 | Fine Device:Kk | 管材の接合方法及び接合装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1698446A4 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007296857A (ja) * | 2005-09-21 | 2007-11-15 | Orient Chem Ind Ltd | レーザー溶着体 |
JP2007136371A (ja) * | 2005-11-18 | 2007-06-07 | Toyota Boshoku Corp | 多孔質繊維成形体及びその製造方法 |
JP2007260957A (ja) * | 2006-03-27 | 2007-10-11 | Ube Ind Ltd | パイプ形状品のレーザー溶着用継手およびパイプ形状品のレーザー溶着方法 |
EP2444237A1 (de) | 2006-04-06 | 2012-04-25 | Fresenius Medical Care Deutschland GmbH | Durchstrahllaserschweißverfahren für die Verbindung von Kunststoffformkörpern |
WO2013065452A1 (ja) * | 2011-10-31 | 2013-05-10 | 三菱重工業株式会社 | ライニング用組成物及びライニング施工方法 |
JP2014140565A (ja) * | 2013-01-25 | 2014-08-07 | Kaneka Corp | 医療用チューブの製造方法およびカテーテル |
JP2019502078A (ja) * | 2015-12-14 | 2019-01-24 | ウィルマーク ホールディングス, エルエルシー | 同心状に層化された材料のレーザ誘発シール |
US11608926B2 (en) | 2015-12-14 | 2023-03-21 | Wilmarc Holdings, Llc | Laser induced sealing of concentrically layered materials |
JP7263009B2 (ja) | 2015-12-14 | 2023-04-24 | ウィルマーク ホールディングス, エルエルシー | 同心状に層化された材料のレーザ誘発シール |
JP2020002559A (ja) * | 2018-06-26 | 2020-01-09 | 積水化学工業株式会社 | 接着剤及び配管構造 |
JP7381193B2 (ja) | 2018-06-26 | 2023-11-15 | 積水化学工業株式会社 | 接着剤及び配管構造 |
Also Published As
Publication number | Publication date |
---|---|
EP1698446A4 (en) | 2013-04-24 |
JP4567601B2 (ja) | 2010-10-20 |
ES2526193T3 (es) | 2015-01-08 |
EP1698446A1 (en) | 2006-09-06 |
EP1698446B1 (en) | 2014-09-17 |
US20070151970A1 (en) | 2007-07-05 |
JPWO2005063469A1 (ja) | 2007-07-19 |
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