TW475940B - Polytetrafluoroethylene laminated article and the method of manufacturing the same - Google Patents

Polytetrafluoroethylene laminated article and the method of manufacturing the same Download PDF

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Publication number
TW475940B
TW475940B TW088112528A TW88112528A TW475940B TW 475940 B TW475940 B TW 475940B TW 088112528 A TW088112528 A TW 088112528A TW 88112528 A TW88112528 A TW 88112528A TW 475940 B TW475940 B TW 475940B
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TW
Taiwan
Prior art keywords
item
sheet
ptfe
laminate
scope
Prior art date
Application number
TW088112528A
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English (en)
Inventor
Kazuo Ishiwari
Tatsuro Uchida
Masahiko Yamada
Original Assignee
Daikin Ind Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • 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
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C66/7311—Thermal properties
    • B29C66/73115—Melting point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
    • B29C66/7313—Density
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7377—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73773—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being semi-crystalline
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
    • C08J5/121—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C2043/043—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds rotating on their own axis without linear displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C43/006—Pressing and sintering powders, granules or fibres
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • B29C66/7318—Permeability to gases or liquids
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    • B29C66/7352—Thickness, e.g. very thin
    • 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
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/30—Fillers, e.g. particles, powders, beads, flakes, spheres, chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/12—Polyvinylhalogenides containing fluorine
    • B32B2327/18—PTFE, i.e. polytetrafluoroethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • Y10T428/31544—Addition polymer is perhalogenated
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3854—Woven fabric with a preformed polymeric film or sheet
    • Y10T442/3878—Fluorinated olefin polymer or copolymer sheet or film [e.g., Teflon@, etc.]

Description

475940 五、發明說明α) 本發明係有關於一種四氟化聚乙稀 (polytetrafluoroethylene) (PTFE)層壓物，該層壓 物之藥液透過性报小，亦即具有優良之低藥液透過性。上 述層壓物在藥液貯藏用容器或槽（tank)、管樁（pipe) 之加襯Uinmg)用等所使用之背襯片（backing ““士 )上非常有用。 【習知技術】 自半導之製造開始後，作為原料、洗淨劑之各種藥 =在f種化學工廠設備中被廣泛的使用。上述之藥液中反 ：：者也同時具有腐蝕性，因而在此種藥液之貯藏或輸 =中通常貼附有被稱為背襯片之層屢物。背 紛！! t 接觸？必須為耐藥品性強之材料，ϋ常是使用 、樂=性優良之氟樹脂，特別是以pTFE製之背襯片。 纖唯：：：：t典型的背襯片，為將玻璃纖維織布及碳 性織布接著於PTFE片上而成，但是因為 間介二二2 2 ί : f困難，所以在耐熱性織布與PTFE片之 鱗）t的四敦化乙稀—對—氣（烧基乙歸 ether))丘令人^〇et ylene— P — flU〇r〇 (alkylvinyl 产推> 士為、物（PFA )薄膜，並以PTFE熔點以上的溫 可避免地也合熔融社ί 熱熔融粘著之時，PTFE; 個降低下來:另* 造成了結晶性降低’亦即比重整 (比面，PTFE的藥液透過性以結晶性高 低之加埶步di ’若能避免進行婦匕结晶性降 —驟仏佳。但是，若使PTFE的結晶性在某程度
第4頁 475940 五、發明說明（2) 的殘餘狀態下停止加熱，卻得不到例如介設之pFA所必須 的接著強度。 ' 在此處，習知以來亦未謀求進一步改進，不是使用結 晶性，、比重小的PTFE片作為原料，就是容忍作為原料^ 用之高結晶性、高比重的PTFE片因加熱而導致pTFE片的结 晶性降低。 無論如何，習知以來並未得到PTFE平均比重在2· i75 以上並具有實用層次（level )接著強度之背襯片或PTFE 層壓物。 【發明之揭示】
本發明之第1目的係提供一種具有優良低藥液透過性 之PTFE層壓物。 又，本發明目的亦提供一種具有充分的接著強度及優 良低藥液透過性之背襯片。 更進一步’本發明目的係提供一種可將加熱時間縮短 及作業製程簡略化並具有優良低藥液透過性之PTFE層壓物 之製造法。 上述目的’可藉著含有由平均比重2175以上的ptfe 片及熱溶融性樹脂層所層壓構成之構造，或者是含有在平 均比重2· 1 75以上的PTFE片與耐熱性織布之間介設有熱溶 融性樹脂層所層壓構成之構造之層壓物來達成。 所得到之層壓物，其PTFE片與熱熔融性樹脂層之接著 強度以剝離強度測之為2kgf/cm以上，與ptfe片平均比番 未滿2 · 1 7 5之習知層壓物具有相同或更高之強度。
第5頁 此處之平均比重，係指 而吕’而該低比重層係因加 降低的部份（層）。 包含低比重層在内之全體比重 熱結果在PTFE片所生成之比會 (hexafluoropropylene) (HFp)及/ 或對—氟（烷基乙烯 醚）（PAVE )共聚物。 使用本發明之層壓物作為例如背 敢外層的PTFE片之自由表面平滑化，以將；;用 :進行_點以上溫度之加熱處理較 處理之PTFE片以利用對-氟Γ焓其，膝w/表面千1化 之PTFE片較佳。 基乙烯醚）（PAVE)改質 述本發明之層壓物，可尤ρ τ P ]? y也 k , u 了在？丁FE片與熱熔融性樹脂港 或板（Sheet )之間，介設以熔融能（energy ) 在65 J/g —以下之未烘烤PTFE進行改質之打肫微粒子層後， 加熱熔融粘著即可製得。上述PTFE片以比重超過2· 175之 PTFE片較佳，而上述熔融能（energy )在“了“以下之未 烘烤PTFE可舉例如PTFE均聚物或六氟化丙烯 PTFE之微粒子層，無論是以乳化聚合所得到之分散體 (dispersion)型態，或是以將該分散體乾燥成粉末後薄 膜化所得到之薄膜型態皆可適用。 另外’也可利用不存在PTFE微粒子層之PTFE片與熱溶 融性樹脂膜進行加熱溶融粘著來製造，此情形下，為了使 PTFE片的比重變高，必須在加熱熔融粘著後防止溫度急遽 的下降。藉著上述之防止策略，可促進熔融之PTFE充分結 晶化，而成為高比重之物質。
/^940
所明防止溫度急遽下降之計策，可舉例如將溫度適當 呆持在3j0 C以上未滿PTFE熔點之範圍内之方法。保持時 間以能充分促進熔融之PTFE結晶化者較佳，可為5〜20分鐘 另外’該溫度急遽下降之防止法，在介設有pTFE微粒 子層之情形下也可施行。 加熱、’以從耐熱性織布側，亦即從熱熔融性樹脂膜或 側開始進行車父佳；而停止加熱，則以在MM片中殘留有 未熔融層時停止較佳。 又’特別是作為背襯片 反面，亦即與藥液接觸之面 行加熱處理以使表面平滑化 壓物加熱熔融粘著之前、同 【圖式簡單說明】 使用時，以將PTFE片層壓面之 ，利用PTFE炫點以上的溫度進 較佳。該加熱處理，可施於層 時或之後。 第1圖係用以說明本發明 施例之概略剖面圖。 之PTFE層壓物製造方法之1實
第2圖係用以說明本發e 他貫施例之概略剖面圖。 【發明之最佳實施例】 本發明之PTFE層壓物為 性樹脂之膜或板間使介在熔 PTFE (以下未預先特別限定 粒子層後藉著加熱溶融粘著 著就該第1製造法之製造製弃 之PTFE層壓物製造方法之其 如上述般，在PTFE片與熱熔融 融能為65J/g以下之未烘烤 —^_ 時稱為「未烘烤PTFE」）之微 即可製造（第1製造法）。接〜 I進行更詳細之說明，但本發
475940 五、發明說明（5) 明並不限定於以下之具體的製造法。 八1 ί .在厚度約卜4mm 2PTFE片上塗佈未烘烤1^1^之 pVe之則m) ’乾燥後即於pm片上形成未烘烤 愈小熱!共烤剛之微粒子粒徑，若由炫融能 5 // m f #。i 4间之觀點來看約為〇· ：l〜5 " m，並以〇小〇·— 的未烘烤PTFE分散液的濃度’若由分散液之高安 )，並mq規點來看約為30〜70重量％ (以下稱為「％」 ίο〜^65%較佳。塗佈量以乾燥重量而言約為 塗佈斑:】:,以15〜1〇〇g/Dl2較佳。若太少的話容易生成 者皆不佳!右過的話則容易產生微粒子脫落的現象，兩 )塗Ϊ:方寺別加以限定，可採用例如ΐ霧（_y 法等。乾燥則可以採用ϊ然乾燥 共聚的四敦乙稀，—敦（院基乙㈣ 人亦可配合未烘姥pTFF 刀狀狀 _之分散液凝=== 再利用產曰；r μ外®取儆、、、田叔末（fine powder )後， 子（roll )將該微細粉末進行壓延而製成。 面上二=rTFE片之未供烤咖微粒子層（膜）形成 疊耐熱性織布等，之德尸献卜更進步右必要的話再層， 發明中，該加熱至為性樹脂側進行加熱。在本. 力熱/皿度為PTFE的熔點（約32 7〜345 〇c )以上，並以
$ 8頁 475940 五 、贫明說明（6) 約360〜390 °C較佳，"^ 去h 1亚且在該溫度下加熱至PTFE片中殘存 禾炼融部份（岸彳七， 所施加的埶量二可t:即停止加熱是非常重要的。亦即 甚—入& = 了以在PTFE片中殘存結晶之量較佳。結晶 、#, 比重將大幅降低而在2. 1 75以下，藥物 透過性也因而變大。 r的H =則因加熱溫度、PTFE片的厚度、熱溶融性樹 』驗而=二旱度以及耐熱性織布的厚度等因素而異，可依 只驗而決定，也可於# H ,, _ 2. 189之PTFE片，在VV; 計算而得。例如比重為 与度3圓、加熱溫度380 °C之情形下， 跣以加熱3〜5分鐘間較佳。 部份未熔融部份之》太 t 刘；ΛΑ 物之殘存狀您如何，看到PTFE片的橫切
u .,.、去 亦即，結晶化程度高之加熱前的PTFE t7 ^ ^ ^ 士日f，但是結晶熔融後就變成透明的。因此橫 :二二^ 溶融性樹月旨侧存在透明的部份（層）， 而在非加熱面側f存有白色不透明層之狀態。
κι 土 w 长 了舉例如第1圖所示般依照PTFE 片1、未烘烤PTFE微粒子屛？、舶ρ 一丄kiL山 必要時加入之耐熱子層2熱炫^性樹脂膜或片3以及 性繃；^彳目f ^ 4 :布的順序進仃配置，同時在耐熱 您續可4側配置加熱板5，ρ τ p 1? ρ 1 /丨 ,^ . 汉5 PTFE片1側配置按押板6，接著將 2板5及按押板6 —起加壓，加熱板5並加溫至PTFE熔點 的加第2、圖所示般’在加熱至PTFE溶點以上 微粒;:？ :〇r7上，將依照PTFE片1、未洪烤PTFE 微拉子層2、熱熔融性樹脂膜或片3以及必要時加入之财熱 475940 五、發明說明（7) f生織布4的順序配置的層壓物中之耐熱性織布4側與加熱輕 柱7之表面相接觸而捲繞，同時一邊以按壓輥柱8進行壓 附’一邊連續的進行加熱熔融粘著而製造。在第2圖中， 1 0為結晶化區域，丨丨為加熱器。 使用未供烤PTFE分散液時，未烘烤PTFE微粒子層2可 f上述般在PTFE片1上塗佈未烘烤PTFE分散液再乾燥之， 可在熱熔融性樹脂膜或片3側上塗佈未烘烤PTFE分散液 再乾燥之。 行加壓時之壓力，可選擇例如在〇.卜〇 i5Mpa程度 ^ ^又，加熱後將壓力釋放並慢慢冷卻至室溫對於 6及：VVlt f之觀點而言會較佳。基本上而'r，按壓板 i M /ml t 然沒有加熱的必要，但是從消除層壓物的 pTFmt也可以以未滿pm的熔點’特別是低於 PTFE烙點^〜35 C之溫度進行加熱較佳。 其材料進行說明。 古1=使用之PTFE片必須為比重超過2·175之 2.178〜2.210者較為：？疋:/2.178以上，更佳為 芏，而本發明之目·的°就\。法 PTFE片，可兴+尤…、法達成。上述高結晶化程度之
7 ^ JP98/01U6E P 稭者一面旋轉由PTFE粉末壓缩成形之PTFF & 形品一面進行烘烤之旋轉烘 ^ &細成形之PTFE成， 即可得到。從利用習知法所〜’侍到冬烘烤物切割成片 PTFE片，為了弄平大的^侍' TFE烘烤物上切割而得之、 、 斤’在作成層壓物之前必須先將
475940 五、發明說明（8) PTFE片進行加熱平坦化，因此在層壓前PTFE之結晶化程度 就已經降低了。但是根據該旋轉烘烤法的話，可得到均質 且高結晶化程度之PTFE片，且切割所得之片因為很平坦， 、^— _ — 所以與其他材料之層壓隻容易，特別是不需要藉由加_來 因此1必擔心層壓前結晶化程度會降 低。 作為原料之PTFE粉末，為四氟化聚乙烯（TFE )之均 聚物或使用其他氟單體改質之PTFE。在改質之PTFE中， TFE與其他氟單體之莫耳比可以為95 : 5〜99· 9 99 : 0· 001。 所謂改質之PTFE，可舉例如以對-氟（烷基乙烯醚） (PAVE )進行改質之PAVE改質PTFE或是以六氟化丙烯 (HFP )進行改質之HFP改質PTFE等。所謂對-氟（烷基乙 稀醚）（PAVE)，可為如式（I)所示之化合物··
(I CF2=CF-ORf [Rf為必須含有碳原子及氟原子、不含氫原子及可含有氧 原子之有機基]。 在對-氟（烷基乙烯醚）（I)中之Rf基，也可以為碳 原子數卜10的對-氟烷基、碳原子數4〜9的對-氟（烷氧基 烷基）基、式（II): F F ^ C F3 Wf
第11頁 475940
2 F C 2 F C 3 F C
2 F C 3 - F F C — C
[式中，η為〇〜4之整數]中所示之基。 上述中之PAVE改質PTFE，以結晶化程度大5比番▲ 過2· 175，藥液透過性小者較佳。 一 ^超
PTFE片之厚度因目的用途而異 若使用於了襯片時則約為2〜4mm的程度仁…為1〜-’ 形成未供烤PTFE微粒子層之未烘姥pTFF r右攸回熱傳導性之_點爽砉 ^B5J/g，xT , ^30^50 /Λ 戶1·神敎π t f末看，則 E改質PTFE為較佳。 所明熱熔融性樹脂膜或片，以可在p 著而得到膜或片去』隹以i1 L片上熱熔融粘 點的烯烴系樹脂·ρ^可舉例如具有接近打肫熔點之熔 及TFE-PAVE共、ΡΕΕΚ *之芳Μ系樹腊；以 (FEP)等之熱“性(=耸TFE〜化丙稀共聚合物 PTFE具有同樣的性併氣樹月=4等/上述之中，若從與’ 熔融性氟樹脂較佳，*〜P接著性佳之觀點來看，以熱-
4寺別疋在作為背觀片用時以p F A、ρ E P 五、發明說明（ίο) 等較佳。 該熱溶融性樹脂一無你盔m r , τ ^ ^ ^ L為用以接著PTFE片與其他材料 '!二熱ΐ織布等）之接著層。但是’也可以用作在裁 上接著了PTFE片之層屋物，亦可以用作在, 严融性樹腊膜之機能性層壓物。所以， ::用：S當=定較佳，㈣如於滄襯片少作為接著 增便用日令3約1 0〜jjj A m較佳。 接著，就關於將PTFE片盥執松-丄η ir >fePTFF η ^fr ^ ^ ·/、Α熔融性樹脂膜之間直接或 :ίΤ? 層後進行加熱熔融枯著之預備層壓物署於 个會產生溫度急遽降低之肤能丁 百心頂桷堉笔•勿置方、
妊曰仆之屏茂脇々二而得到促進熔融的PTFE (第2製造法）進行描述。 第1製造法相同、，、也""V生樹脂膜之加熱熔融粘著處理可以與 :1 “法相R，也可以將加熱時：. 法之特徵在於可使經加熱㈣魅右干_第2製造 熔融PTFE充分進行再結晶化。 f熔融PTFE片中的 晶化，可回復高比重之PTFE片卿之再結 冷卻並照原樣放置，已熔融之PTFE ^ =熔融之PTFE急速 的，又所生成之結晶也會變得不完全，二f進一步結晶化 上提昇。 旧果比重就無法往 在該處，以第2製造法加熱熔融 下降及不產生急遽的溫度降低。該者可防止比重 imp里魏” 7〜u止方汰， 溫度範圍内#結旦也有 留時間，因加熱炫融W:夺之 5之厚度以及原 475940 五、發明說明（11) 料PTFE片之比重等而有所差異，但是以選定在5〜20分鐘間 的範圍内，特別是5〜1 0分鐘間的範圍較佳。例如在比重為 2.189、厚度為3 mm之PTFE片於380 °C下進行加熱溶融粘著
時’若在3 0 0〜3 1 度—王〜保後Z〜9全鐘發楚，可陵A PTFE片之比重降到比2. 175還低。 該防止溫度急遽降低之具體裝置，可舉例如第2圖所 示般’在符號1 〇中所示之結晶化區域中，藉由設置在加熱 滾柱7往下流之PTFE片！側與耐熱性織布4侧兩邊且位於加 熱炫融枯著PTFE片1之結晶化區域]_ 〇中之加熱器η來進行 恤度控制使不產生溫度急遽降低之情形較佳。另外雖然未 圖示，但也可將層壓體全體被覆以作為結晶化腔 (chamber )之型態。 續的降 域，其 又， 融粘著 融性樹 本發 樹脂膜 融性樹 果會特 所謂 I复t 連 區 炫 熔 性 炫 效 如 化區域之溫度控制，可維持在一定溫度，也可作 /皿’亦可作階段性（例如3 5 0。(：之區域，3 3 0 °c之 次為31 0 °C之區域）的降溫。 1熱溶融性樹腊膜侧（耐熱性織布側）進行加熱 也可以將防止溫度急遽降低之裝置配置在i 脂膜侧。 …、 明之層壓物，其 十u 土本上可為包含了 PTFE片及熱嫁融 ί =接層著構广但是若如上述般更進-步將熱' 別顯著。9而與其他材料形成複合化層壓物時' 的其他材料，炎· % u 0i ^ ^為可使PTFE產生耐熱性之闬途，例、 %〜一:〜〜而：，另可舉例如玻璃織布、^ 475940 五、發明說明（12) -- 織布、聚醯胺亞胺（polyamidoimide)織布及删氮化物 (boronnitride )織布等。 本發明之層壓物具有優異的低藥液透過性，在作為各 種貯藏用或輸送用容器、槽（tank)以及管路（pi pe 1丨n e )等加襯（1 ining )用之背襯片（backing sheet )上非 · 常有用。除此之外，利用PTFE的非粘著性及低摩擦性等性 貝而應用於脫模用途及滑動用途上也很合適。 ' 特別是使用於要求極高潔淨度之半導體製造領域中 時’光是使藥液不會透過滲出是不夠的，還必須保護藥液 本身不受污染。例如在以本發明之PTFE層壓物（藥液接觸 面為PTFE片之表面）形成藥液容器的内表面之情況下，切 割所得之PTFE片表面若粗糙的話，僅對容器内進行單純的 洗淨還是會有污染殘存，特別是微小的粒子（後稱為微粒 (particle))，最後藥液因而被污染。故本發明中於該 處即針對P T F E片之藥液接觸面形成側，在進行層壓化前、 層壓時或層壓後施以PTFE融點以上溫度之加熱處理，該溫 度為例如340〜390 °C。 該平滑化處理之方法，可藉由在無負重或輕負重下以 PTFE融點以上的溫度進行短時間加熱來實施。但是，應該 /主忍勿使最終層壓物中之p 丁 F E片的平均比重降到2 · 1 7 5以 下。加熱方法也可使用燃燒器（burner )等而藉一由表^烘 烤來進行。另外，亦可藉由將在層壓化時所使用的熱壓機 (例如第1圖）之按壓板之溫度短時間提升至PTFE融點以 _ 上溫度來進行。更進一步，也可以採用在加熱輥子（r〇 u
第15頁 475940 五、發明說明（13) ^上短時間通過之方法。加熱時間在加熱溫度為·。c之 f形下通常為6〜60秒之間。藉由該平滑化處理可得到表面 粗糖度以下，通常為"。，。㈣之謂片^表面 以：就本發明層壓物之較佳具體實施例進行說明，但 下述之貫施例並非用以限定本發明。
(1 ) PTFE 片··以PAVE 改質之pTFE 平均比重 未烘烤PTFE微粒子層：以PAVE改質PTFE分散體 塗佈 队肢 平均粒徑0. ：1〜〇. 5 # m 塗佈量（乾燥）15〜l〇〇g/m2 熔融能50J/g以下 熱熔融性樹脂膜：pFAm (熔點31(TC )厚度10〜300 // 等 其他的材料··耐熱性破璃織布 聚酿胺亞胺織布 其他的處理··表面平滑化處理 用途··藥液貯藏·輸送用容器 Pipe)等加襯（lining)用之背襯片（backing 。特別是與半導體製造相關聯之藥液輸送、貯藏容哭 碳織布、 蝴氮化物織布 槽（tank ) 管樁 效果：因為藥液之透過性小且表面平滑，所以微粒 (particle)等之附著很少。
(2 ) PTFE 片：以PAVE 改質之PTFE 第16頁 475940 五、發明說明（14) 平均比重2. 178〜2. 210 未烘烤PTFE微粒子層：以PAVE改質之？1[{?]£微粒子膜 平均粒徑0 · ；1〜0. 5 // m 膜厚10〜100 //m 熔融能50J/g以下
熱熔融性樹脂膜：PF A膜（熔點3 1 〇 °C )厚度1 〇〜3 〇 〇 ^ m J 其他的材料：耐熱性玻璃織布、碳織布、聚醯胺亞 織布、蝴氮化物織布 其他的處理：表面平滑化處理 -鉬：途枯藥？貯藏輸送用容器、#、管樁等加襯用之 I'。寺別是與半導體製造相關聯之藥液輸送、貯藏容 =:因為藥液之透過性小且表面平滑·所 之附者很少。 (3 ) PTFE :以pave 改質之ptfe 平均比重2. 178〜L 210 未烘烤PTFE微粒子層：以PAVE改質之”“分散液塗佈 平均粒徑0. ：1〜0. 5 塗佈里（乾燥）15〜lQ〇g/ffl2 熔融能50J/g以下 瓜熱炼融性樹脂膜：pFA膜（炫點31〇。〇厚度ι〇〜3〇〇以 -的材料.耐熱性玻璃織布、碳織布、聚醯胺亞胺 475940 五、發明說明（15) ' ' 一--- 織布、侧氮化物織布 其他的處理：表面平滑化處理 < 用途：藥液貯藏.輸送用容器、槽、管樁等加襯用之 =^。特別是與半導體製造相關聯之藥液輸送、貯藏容 效果：因為藥液之透過性小且表面平滑， 之附著很少。 a m寸
(4 ) PTFE片：未改質之pTFE 平均比重2. 178〜2. 210 未烘烤PTFE微粒子層：以PAVE改f iPTFE分散液塗佈 平均粒徑0. 1〜0. 5 // m 塗佈量（乾燥）15〜l〇〇g/m2 熔融能50J/g以下 熱熔融性樹脂膜：PFA膜（溶點31(rc )厚度1〇〜 m 卜 碳織布、聚酸胺亞胺 槽、管樁等加襯用之 其他的材料：耐熱性玻璃織布 織布、蝴氮化物織布 用途·藥液貯藏·輸送用容哭 背襯片。 效果··藥液透過性小 (5 ) PTFE片··未改質之ρτρΕ 平均比重2. 178〜2. 210 未烘烤打以微粒子層··以PAVE改質之PTFE微粒子膜 平均粒徑0.卜0.5
475940 五、發明說明（16) 膜厚10〜100 //m 炼融能5 0 J / g以下 熱炼融性樹脂膜：PFA膜（ m 點3i〇C)厚度10〜300以 其他的材料：耐熱性玻璃織 ^ ^ 織布、硼氮化物織布 奴織布、聚&胺亞胺 用途：藥液貯藏·輸送用容 —卜 背襯片。 的、槽、管樁等加襯用之 效果：藥液透過性小 (6 ) PTFE :以pave 改質之Ptfe 平均比重2. 178Ui〇 未烘烤P T F E微验+展· 土 子層·乂未改質之PTFE分散液塗佈 平均粒徑0·卜0. 5 ^ 塗佈s (乾燥）l5〜1〇〇g/m2 炼融能5 0 J / g以下 m 熱熔融性樹脂膜：PFA膜（您點3i(rc)厚度削一 其他的材料·耐執性玻璃 織布、錢化物織布 織布、碳織布、聚醯胺亞胺 其他的處理··表面平滑化處理 用迷·樂液貯藏· ^ ^ U 〇 V] B 剧、各器、槽、管樁等加襯用之 器等。 一土相關聯之藥液輸送、貯藏容 效果：因為藥液之读禍枓 之之透、I*生小且表面平滑，所以微粒等
五、發明說明（17) 之附著很少。 (7 ) PTFE 片··以PAVE 改質之Ptfe 平均比重2.178〜2>21() 未烘烤PTFE微粒子層·本 I于層.未改質iPTFE微粒子 千均粒徑0. 1〜〇 5 ,, 膜厚10〜100 熔融能50J/g以了 熱熔融性樹脂膜：PFA膜 ffl m膜（熔點31(TC )厚度1〇〜300 # 其他的材料：耐敎性姑殖 織布、硼氮化物織布、、 ㈣布、妷織布、聚醯胺亞胺 其他的處理··表面平滑化處理 用途··藥液貯葳·鈐徉θ a 背襯片。特別是與：導：：”器、#、管樁等加襯用之 器等。 V肢衣以相關聯之藥液輸送、貯藏容
效果·因為单潘令、泰、J3L liL 之附著很少。 透且表面平滑’所以微粒等 (8 ) PTFE片·未改質之ρτρΕ 平均比重2. 178〜2. 210 未烘烤PTFE微物| μ · 土％ % 、，儆粒子層·未改質之PTFE分散液塗佈 平岣粒徑0.卜〇. 5 塗佈量（乾燥）1 5〜1 〇〇g/ro2 炫1融能5 0 J / g以下 熱熔融性樹胳_ m w / 曰膜· PFA膜（熔點31〇 °c )厚度1〇〜300 #
第20頁 五、發明說明（18) 其他的材料· # & 刊7十·耐熱性玻璃绺 織布、硼氮化物織布 布、碳織布、聚醯胺亞月安 槽、管樁等加概用 之 用途：藥液貯藏.輸送 背襯片。 么為 效果·藥液透過性小 (9 ) PTFE片：去％供
^ 禾改質之PTFE 平均比重2. 178〜2 9ιη 未烘烤PTFE微粒子層：未 孚仏』展未改質之PTFE微粒子膜 千均粒徑0·：!〜0.5 “m 膜厚10〜1〇〇 Am 炫融能50 J/g以下 熱炼融性樹脂膜：pFA膜 η 點 310C)厚度 1〇〜300# 碳織布、聚醯胺亞胺 槽、管樁等加襯用之 其他的材料：耐熱性玻璃織布 織布、硼氮化物織布 用途：藥液貯藏·輸送用容器 背襯片。 效果··藥液透過性小 (10) PTFE 片：以pave 改質之 ptfe 均比重2 · 1 7 8〜2. 2 1 0 未熔融PFA微粒子層··以PFA分散液塗佈 均粒徑0. ；1〜0. 5 佈量（乾燥）15〜lOOg/m2
第21頁 475940 五、發明說明（19) 融能50J/g以下 熱溶融性樹脂膜：PF A膜（熔點3 1 0 °C )厚度1 0〜3 0 0 // m 其他的材料：耐熱性玻璃織布、碳織布、聚醯胺亞胺 織布、獨氮化物織布 其他的處理：表面平滑化處理 匕用途：藥液貯藏·輸送用容器、槽、管樁等加襯用之 月襯片。特別疋與半導體製造相關聯之藥液輸送、貯藏容 器等。 效果··因為藥液之透過性小且表面平滑，所以微粒等 之附著很少。 (ll)PTFE>i :未改質之ρτρΕ 平均比重2· 178〜2. 210 未溶融PFA微粒子層：以m分散液塗佈 平均粒徑0. ；1〜0.5 塗佈量（乾燥）15〜1〇〇g/m2 炫融能50J/g以下 熱熔融性樹脂獏·· PFA膜（ m β 點310 C )厚度1〇〜3〇〇 a 其他的材料··耐熱性玻璃織布、山 織布、硼氮化物織布 、乂織布、聚醯胺亞胺 其他的處理··表面平滑化處理 用途：藥液貯藏·輸送用容哭 背襯片。 °°、槽、管樁等加襯罔之 475940 五、發明說明（20) 效果··藥液透過性小。
(12 ) PTFE 片：以PAVE 改 f 2PTFE 一 平均比重比2· 175更大 熱溶融性樹脂膜·· PFA膜（ m 狀、以點31 0 C )厚度1 〇〜3 〇 〇 // 其他的材料：耐敎付姑 織布、硼氮化物織布’、、、螭織布、碳織布、聚醯胺亞胺 其他的處理：加熱熔融粘 理 考後防止&度急遽降低之處 用途··藥液貯藏·輸送用 ^ 背襯片。特別是與半導制、生 w、槽、官樁等加襯用之 器等。 -衣w相關聯之藥液輪送、貯藏容 效果·因為藥液之透過性 、 之附著很少。 ’、且表面平滑，所以微粒等 (13)PTFE 片：以pave 改質之Ptfe 平均比重2 . 1 7 R 〇 熱熔融性樹脂膜·· PFA〜· 210 m 、（炫點310 °C)厚度1〇〜300# 继女其他的材料··耐熱性破螭蜱太 織布、硼氮化物織布 '每布、碳織布、聚醯胺亞胺 其他的處理：加熱熔融 點溫度之間維持5〜2〇分鐘 者後，在300 °C〜未滿PTFE熔 北用途：藥液貯藏·刀^送 月襯片。特別是與半導體制、生合器、槽、管樁等加襯用之 衣&相關聯之藥液輸送、貯藏容 第23
液之透過性小且表面平滑，所以微粒等 效果：因為藥 之附著很少。 π阳ί著基於本發明之實施例而進行說明，但是本發明並 不限疋於以下實施例中所述者。 實施例1 卜在利用旋轉烘烤法（在PCT/JP98/01116號說明書之實 施例2中所述的方法）烘烤後切割所得到之PTFE片（比重 2.191之PAVE改質PTFE片。寬度2〇〇mm、長度2〇〇_ '厚度 3mm )的一邊表面上，利用刷毛塗佈法將藉由乳化聚合戶^ ‘ ie之PAVE改 gPTFE分散液（dispersion )(、熔融能 4 0 J / g ’平均粒徑〇 · 3 # ，濃度6 5 % )塗佈成乾燥後的 PJFE微，子塗佈量為3〇g/m2的狀態再乾燥之。接著將"A 薄膜（寬度200_、長度2〇〇_、厚度〇· 25mm )配置於pTFE 微粒子層側，更進一步將配置有耐熱鉻玻璃（glass chromium )(寬度2〇〇_、長度2〇〇_、厚度3mm)之層壓 物置於如圖1所示的加熱板5及按押板6之間，在加熱板温 度380 °C、按押板溫度3〇〇。〇及加壓壓力lkgf/cm2的條件下 進行加熱。4分鐘後將加熱板之壓力釋放，以2〜3分鐘慢慢 冷卻至室溫’本發明之層壓體（背襯片）於是製成。 由該層壓體切出寬度3〇_、長度150mm之樣品 (sample )，依照 jIS κ 6772 - 9-5 中 PTFE 片與 PFA 薄膜間 之接著強度（剝離強度）進行測定時，得到3. 〇kgf/cm。 又，PTFE片全體的平均比重為2184。觀察pTFE片橫剖面
(22)475940 < 時’從PFA膜側開始約3〇%由於熔融而變透明。 更進一步將所得之層壓體以熱壓機在36〇。(：下進行1分 鐘加熱處理使PTFE片的表面平滑化之後，pTFE片的平均比 重仍維持在很高的2. 1 8 3。 實施例2 利用習知法供烤、切割而製作出pAVE改質pTFE片（平 均比重2 · 1 9 1 ) ’為了將該板之皺折處弄平而在3 6 〇艽下進
行5分鐘加熱加壓之平坦化處理後，平均比重卻降低至 11 78。除了使用該經平坦化處理的ρτ]ρΕ片之外，進行與 貫施例1同樣的步驟將未烘烤PTFE微粒子、pFA薄膜及耐熱 絡玻璃層壓後’在相同條件下加熱加壓2分鐘而製成層壓 體。該層壓體中PTFE片的平均比重為2· 177，接著強度 (剥離強度）為3· 2kgf/cm，橫剖面之透明層比例為1〇 % ° 更進一步進行與實施例1同樣的步驟而將pTFE片的表 面平滑化後，平均比重幾乎降低到為2· 176。 實施例3
除了使用利用旋轉烘烤法製成之未改質PTFE片（平均 比重2· 178 )之外，進行與實施例1同樣的步驟將未烘烤 PTFE微粒子、PFA薄膜及耐熱鉻層壓後，在相同條件下加 熱加壓2分鐘而製成層壓體。該層壓體中PTFE片的平均比 重為2· 177，接著強度（剝離強度）為3· 2kgf/cm，橫剖面 之透明層比例為1 0 % 。 貫施例4
第25頁 475940 五、發明說明（23)
在實施m中不塗佈未 TFE ^ , 里在305 c的熱壓機上移動且俘拄s八 外，進行與實施例玉同樣二3;::;:又”卻至室溫之 層麼體中PTFE片的平均比二^製成層壓體。所得到之 度）為3.2kgf/c^均比重為2.177,接著強度（剝離強 比較例1 1 Ϊ+Ιίίΐ例1中不塗佈未洪烤咖分散液之外，進 仃同樣地層壓及加熱加壓步驟而製成比進 PFA薄膜與PTFE片可用手簡單地剝開。 曰一體後， 比較例2 ::在比較例！中的加熱時間延長為8分鐘之外，進行 同铋地步驟而製成層壓體後，得到接著 ^ n r 1 r / . , ^ . 考強度（剝離強度） ^邮/㈣的層壓體。但是咖片的透明 重降到2. 170。 【產業上的利用可能性】 依據本發明的話，可得到能維持高比重值之ptfe片及 具有充分的接著強度之PTFE層壓物’同時可提供具有優良 低藥液透過性之PTFE系背襯片。
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Claims (1)

1 · 一種層壓物，該 的四氟化聚乙烯板及熱 2 · —種層壓物，該 的四氟化聚乙烯板與耐 脂層所層壓構成之構造 L_tej 層壓物含有由平均比重2. 175以上 炼融性樹脂層所層壓構成之構造。 層壓物含有在平均比重2, 1 75以上 熱性織布之間介設有熱熔融性氟樹 、、3·，申請專利範圍第1項或第2項所述之層壓物，其中 ^，四氟化聚乙烯板及熱熔融性氟樹脂層之接著強度以剝 丨度測之為2kgf/cm以上，其中上述剝離強度測試是以 見又3〇mm、長度15〇之層壓物以JIS K3772-9-5測得。 、、4·如申請專利範圍第1項或第2項所述之層壓物，其中 上述四敦化聚乙烯板為由比重超過2· 175之高比重層及比 重低於該高比重層之低比重層之2層結構所構成。 、5·如申請專利範圍第1項或2項所述之層壓物，其中上 述熱熔融性氟樹脂為四氟化乙烯—對-氟（烷基乙烯醚） 共聚合物。 6·如申請專利範圍第1項或第2項所述之層壓物，其中 上述四氟化聚乙烯為以對-氟（烷基乙烯醚）進行改質之 四氟化聚乙烯。 7·如申請專利範圍第1項或第2項所述之層壓物，其中 亡述四氟化聚乙烯板具有自由表面且該自由表面為利用四 氟化聚乙烯熔點以上的溫度進行加熱處理。 8 ·如申請專利範圍第2項所述之層壓物，其中該層壓 物為背襯片。 9· 一種四氟化聚乙烯層壓物之製造法，其特徵在於： 細I化聚乙烯板與熱熔融性氟樹脂膜或片之間，介設以
2066-2705-PF1；phoebe.p t c 第27頁 案號 88112528 申請專利範圍 曰 修正 您融能在65 J/g以下之未烘烤四氟化聚乙烯微粒子層或未 ^ _之四氣化乙烯-對—氟（烷基乙烯醚）共聚合物之以 塗佈層或薄膜的型態形成之微粒子層後，再以四氟化聚乙 歸之熔點以上的溫度進行加熱熔融粘著。 1 0 ·如申請專利範圍第9項所述之製造法，其中上述未 ^烤四氟化聚乙烯微粒子適合利用以乳化聚合所得到之分 政體型態’或是將該分散體乾燥成粉末後薄膜化所得到之 薄膜型態。 11·如申請專利範圍第9項或第1〇項所述之製造法，其 中上述未烘烤四氟化聚乙烯微粒子為以對-氟（烷基乙烯 峻）及/或六氟化丙烯進行改質之四氟化聚乙烯。 12·如申請專利範圍第9項或第1〇項所述之製造法，其 =將四氟化聚乙烯板與熱熔融性氟樹脂膜或片以熱溶融性 象樹脂的融點以上的溫度加熱熔融粘著後，再以將溫度保 持在3 0 0 °C以上未滿四氟化聚乙烯熔點的範圍内防止溫度 急遽下降之方式使熔融之四氟化聚乙烯充分地結晶化。 1 3 · —種四氟化聚乙烯層壓物之製造法，其特徵在 於^將四氟化聚乙烯板與熱熔融性氟樹脂膜或片以熱溶融 性氣樹脂的融點以上的溫度直接加熱熔融粘著後，再將溫 度保持在30 0 °c以上未滿四氟化聚乙烯熔點的範圍内防止 溫度急遽下降之方式使熔融之四氟化聚乙烯充分地結晶 化° 1 4·如申請專利範圍第9項、第1 0項或第1 3項所述之製 造法，其中上述四氟化聚乙烯板為使用比重超過2· 175之 四氟化聚乙烯板。
2066-2705-PF1;phoebe.ptc 第28頁 / / 修正 曰 案號 88112528 六、申請專利範圍 造法\5·盆如Λ請專利範圍第9項、第10項或第13項所述之製 板接鯧八中在上述熱熔融性氟樹脂膜或片與四氟化聚乙烯 板接觸面之反面疊上耐熱性 &乙婦 月曰膜或片與财熱性織布之加熱溶融枯著。氣樹 為從4^專利範圍第15項所述之製造法’其中加熱 苟從耐熱性織布側進行。 、生1 7 ·如申明專利範圍第9項、第丨〇項或第1 3項所述之製 ^ 1其中上述四敦化聚乙烯板係使用比重超過2. 175之 :鼠化聚乙烯板’而製造如申請專利範圍第1項或第2項所 述之層壓物者。 &、1 8 ·如申請專利範圍第9項、第丨〇項或第丨3項所述之製 化法’其中在上述四氟化聚乙烯板中殘留有未熔融層時停 止加熱。 &、1 9 ·如申請專利範圍第9項、第丨〇項或第丨3項所述之製 造，’其中在上述加熱熔融粘著之前、同時或之後於上述 四氟化聚乙烯板層壓面之反面表面上以四氟化聚乙烯板熔 點以上的溫度進行加熱處理。 2 〇 ·如申請專利範圍第9項、第i 〇項或第丨3項所述之背 襯片之製造法，其中該層壓物為背襯片。 ^ 21· 一種四氟化聚乙烯層壓物，該層壓物為利用如申 "月專利範圍第9項、第1 0項或第1 3項所述之製造法所製 成。 項所述之層壓物。 、22·如申請專利範圍第9項、第1〇項或第13項所述之製 造法，其中所製得之層壓物為如申請專利範圍第丨頊或第2 ΐδ -V 旺膝 λ,
第29頁
TW088112528A 1998-08-18 1999-07-23 Polytetrafluoroethylene laminated article and the method of manufacturing the same TW475940B (en)

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KR20010088786A (ko) 2001-09-28
CN100354129C (zh) 2007-12-12
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CN1312758A (zh) 2001-09-12
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EP1125731A1 (en) 2001-08-22
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