BR112012016332A2 - sistema e matriz de coextrusão e método para fazer a coextrusão de artigos e de artigos coextrudados produzidos dessa forma - Google Patents

sistema e matriz de coextrusão e método para fazer a coextrusão de artigos e de artigos coextrudados produzidos dessa forma

Info

Publication number
BR112012016332A2
BR112012016332A2 BR112012016332A BR112012016332A BR112012016332A2 BR 112012016332 A2 BR112012016332 A2 BR 112012016332A2 BR 112012016332 A BR112012016332 A BR 112012016332A BR 112012016332 A BR112012016332 A BR 112012016332A BR 112012016332 A2 BR112012016332 A2 BR 112012016332A2
Authority
BR
Brazil
Prior art keywords
die
extrusion
articles
coextruding
die portion
Prior art date
Application number
BR112012016332A
Other languages
English (en)
Inventor
L Fleming Danny
J Yarusso David
L Batch Gibson
M Jonza James
O Emslander Jeffrey
W Ausen Ronald
J Kopecky William
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of BR112012016332A2 publication Critical patent/BR112012016332A2/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/22—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means connecting the layers, e.g. tie layers or undercuts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/23—Articles comprising two or more components, e.g. co-extruded layers the components being layers with means for avoiding adhesion of the layers, e.g. for forming peelable layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • B29C48/495—Feed-blocks
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/02—Ceramics
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2453/00—Presence of block copolymer
    • 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
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1476—Release layer
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

sistema e matriz de coextrusão e método para fazer a coextrusão de artigos e de artigos coextrudados produzidos dessa forma. são apresentados uma matriz de extrusão (20) e um método para coextrusão de um primeiro material polimérico fundido e um segundo material polimérico fundido. a matriz inclui uma primeira porção de matriz (20), uma segunda porção de matriz e uma cunha separando a primeira porção de matriz e a segunda porção de matriz. a cunha tem um primeiro lado e um segundo lado, sendo que o primeiro lado forma um contorno da primeira porção da matriz e define uma primeira cavidade da matriz (38), o segundo lado da cunha forma um contorno da segunda porção da matriz e define uma segunda cavidade da matriz (40). é fornecida uma borda de dispensação (36) que tem uma pluralidade de primeiras e segundas aberturas de extrusão, uma pluralidade de primeiras canaletas de alimentação que conectam a primeira cavidade da matriz às primeiras aberturas de extrusão ao longo da borda de dispensação, e uma pluralidade de segundas canaletas de alimentação que conectam a segunda cavidade às segundas aberturas de extrusão ao longo da borda de dispensação. as primeiras e segundas aberturas de extrusão são dispostas ao longo da borda de dispensação para fornecer uma zona interfacial tendo porções das primeiras aberturas de extrusão dispostas entre porções das segundas aberturas de extrusão. a matriz é usada em um sistema de extrusão e em um método para a produção de um artigos multicamadas.
BR112012016332A 2009-12-29 2010-12-15 sistema e matriz de coextrusão e método para fazer a coextrusão de artigos e de artigos coextrudados produzidos dessa forma BR112012016332A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29062609P 2009-12-29 2009-12-29
PCT/US2010/060377 WO2011090603A1 (en) 2009-12-29 2010-12-15 Coextrusion die and system, method of making coextruded articles and coextruded articles made thereby

Publications (1)

Publication Number Publication Date
BR112012016332A2 true BR112012016332A2 (pt) 2018-04-03

Family

ID=43825246

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012016332A BR112012016332A2 (pt) 2009-12-29 2010-12-15 sistema e matriz de coextrusão e método para fazer a coextrusão de artigos e de artigos coextrudados produzidos dessa forma

Country Status (7)

Country Link
US (1) US20120263906A1 (pt)
EP (1) EP2519394A1 (pt)
JP (1) JP2013515636A (pt)
KR (1) KR20120109570A (pt)
CN (1) CN102821927A (pt)
BR (1) BR112012016332A2 (pt)
WO (1) WO2011090603A1 (pt)

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Publication number Priority date Publication date Assignee Title
EP2533964B1 (en) 2010-02-08 2017-01-11 3M Innovative Properties Company Co-extrusion die, and method of making an extruded article using the same
CN102601960A (zh) * 2012-03-06 2012-07-25 北京科特龙阳光板材有限公司 多层塑料实心板材挤出机
US10272655B2 (en) 2012-10-02 2019-04-30 3M Innovative Properties Company Film with alternating stripes and strands and apparatus and method for making the same
US9944043B2 (en) 2012-10-02 2018-04-17 3M Innovative Properties Company Laminates and methods of making the same
US20140248471A1 (en) 2013-03-01 2014-09-04 3M Innovative Properties Company Film with Layered Segments and Apparatus and Method for Making the Same
EP3013913B1 (en) * 2013-06-24 2019-09-25 3M Innovative Properties Company Pressure-sensitive adhesive layers with surface-enriched stripes and methods of making
EP3209727B1 (en) 2014-10-23 2019-12-18 3M Innovative Properties Company Laterally-coalesced foam slab
US10421227B2 (en) 2014-10-23 2019-09-24 3M Innovative Properties Company Shim-stack foaming die
CN104269506A (zh) * 2014-10-24 2015-01-07 深圳市星源材质科技股份有限公司 多层共挤涂覆制备锂电池复合隔膜的方法及装置
US11685095B2 (en) * 2015-06-30 2023-06-27 The Goodyear Tire & Rubber Company Method and apparatus for forming tire components using a coextruded strip
DE102016009261A1 (de) * 2016-07-29 2018-02-01 Giesecke+Devrient Mobile Security Gmbh Datenträgerkarte mit coextrudierter Streifenfolie
ES2900244T3 (es) 2017-05-05 2022-03-16 3M Innovative Properties Co Películas perfiladas
EP3740368A1 (en) * 2018-01-17 2020-11-25 3M Innovative Properties Company Coextruded polymeric article and method of making the same
CN112584994A (zh) * 2018-06-26 2021-03-30 3M创新有限公司 共挤出制品、模头、及其制备方法
US20200198414A1 (en) * 2018-12-19 2020-06-25 The Goodyear Tire & Rubber Company Method and apparatus for forming a composite tread with microchimneys
US11505001B2 (en) * 2018-12-19 2022-11-22 The Goodyear Tire & Rubber Company Method for forming tire components
US11541691B2 (en) 2018-12-19 2023-01-03 The Goodyear Tire & Rubber Company Composite tread with targeted stiffness gradient and method of making
US11993110B2 (en) 2018-12-19 2024-05-28 The Goodyear Tire & Rubber Company Reinforced tread and method of forming
US11697237B2 (en) 2018-12-19 2023-07-11 The Goodyear Tire & Rubber Company Dual compound extruder apparatus with rotatable head
US11845233B1 (en) 2019-08-13 2023-12-19 Keith McConnell Precision tow impregnation manufacturing system
JP2021154195A (ja) * 2020-03-26 2021-10-07 ノードソン コーポレーションNordson Corporation ノズル、接着剤塗布ヘッド、接着剤塗布装置及びおむつ製造方法
CN113199725B (zh) * 2021-04-07 2022-11-29 广西梧州国龙再生资源发展有限公司 一种pet塑料片材挤出机及其工作方法
CN113263708B (zh) * 2021-07-01 2022-10-04 拓凌机械(浙江)有限公司 用于制备高通道尺寸可控性的微通道塑料制品的口模结构
CN114193734B (zh) * 2021-12-30 2023-10-31 丰果(中国)有限公司 一种三层高强度抗菌管挤出模具

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Also Published As

Publication number Publication date
US20120263906A1 (en) 2012-10-18
KR20120109570A (ko) 2012-10-08
EP2519394A1 (en) 2012-11-07
WO2011090603A1 (en) 2011-07-28
JP2013515636A (ja) 2013-05-09
CN102821927A (zh) 2012-12-12

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