Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer

The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dl/g, drying the first material, optionally mixing the raw materials to promote homogenization, extr...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LACRAMPE VALERIE, BILLARD KARINE, STEVENSON TIMOTHY
Format: Patent
Sprache:eng ; fre
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator LACRAMPE VALERIE
BILLARD KARINE
STEVENSON TIMOTHY
description The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dl/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase. The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dL/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase, thermosetting the film at a temperature of 180-250[deg] C, performing transverse relaxation of the film, winding the film and then performing cutting, coating, vacuum coating, annealing and/or UV, plasma or corona treatment, controlling the hydrolysis resistance and/or performance of the film, and increasing the thickness of crystallites to increase adhesion of film. The parameters of the steps are selected to control a thickness of the film or to increase a thickness of the film. The longitudinal stretching is performed at a draw ratio of 2-6, 2.5-5 or 2.8-4.5 and a draw temperature of 70-150[deg] C, 85-140[deg] C or 90-135[deg] C. The transverse stretching is performed at a draw ratio of 2-6, 3.5-5 and 3.5-4.5 and at a draw temperature of 95-150[deg] C, 105-145[deg] C and 110-140[deg] C. During the thermosetting process of the film, the rise in temperature is 4-14[deg] C/second. An independent claim is included for a biaxially oriented polyester film. L'invention concerne un procédé de fabrication d'un film polyester, de préférence un film polyéthylène téréphtalate PET, biétiré et comprenant des cristallites; caractérisé en ce qu'il comprend les étapes suivantes (a) Mise en oeuvre de granulés, à base de polyester (15000 et 50000D), et de viscosité intrinsèque comprise entre 0,4 et 1,3 dL
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_FR2985261A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>FR2985261A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_FR2985261A13</originalsourceid><addsrcrecordid>eNqNj0tOw0AMhrNhgYA7-AC0UotAsEQVEWvEvnInTsaSZxx5PKg5MrdgQjkAKy_8_a_r7rvHk3FA5zzBrLJQcTIYWRLQdtrCifHMKLKAGlN2Gi6Yx0UoEzSa5ugRBZ0uuloaNKpBwlxHDF7t1z2q65eKIwcIJHIPQdNsXKjAYMvKpGZiLa59cnH2uubpCAOXYNQCSCi1FgUwD-CRMtDZrQ6r2KNpnWKDWy1dGyRIVZwFF7Lb7mpEKXT3d2866N8-D-8bmvVIZcbQ5vix_9i_PD_un3avu4d_ID_B6HJt</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer</title><source>esp@cenet</source><creator>LACRAMPE VALERIE ; BILLARD KARINE ; STEVENSON TIMOTHY</creator><creatorcontrib>LACRAMPE VALERIE ; BILLARD KARINE ; STEVENSON TIMOTHY</creatorcontrib><description>The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dl/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase. The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dL/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase, thermosetting the film at a temperature of 180-250[deg] C, performing transverse relaxation of the film, winding the film and then performing cutting, coating, vacuum coating, annealing and/or UV, plasma or corona treatment, controlling the hydrolysis resistance and/or performance of the film, and increasing the thickness of crystallites to increase adhesion of film. The parameters of the steps are selected to control a thickness of the film or to increase a thickness of the film. The longitudinal stretching is performed at a draw ratio of 2-6, 2.5-5 or 2.8-4.5 and a draw temperature of 70-150[deg] C, 85-140[deg] C or 90-135[deg] C. The transverse stretching is performed at a draw ratio of 2-6, 3.5-5 and 3.5-4.5 and at a draw temperature of 95-150[deg] C, 105-145[deg] C and 110-140[deg] C. During the thermosetting process of the film, the rise in temperature is 4-14[deg] C/second. An independent claim is included for a biaxially oriented polyester film. L'invention concerne un procédé de fabrication d'un film polyester, de préférence un film polyéthylène téréphtalate PET, biétiré et comprenant des cristallites; caractérisé en ce qu'il comprend les étapes suivantes (a) Mise en oeuvre de granulés, à base de polyester (15000 et 50000D), et de viscosité intrinsèque comprise entre 0,4 et 1,3 dL/g ; (b)Séchage des granulés ; (c) Eventuel mélange ; (d) Extrusion ; (e) Refroidissement ; (f)Eventuelle enduction ; (g)Etirage biaxial du film ; (h) Eventuelle enduction ; (i)Thermofixation ; (j)Relaxation ; (k)Bobinage du film ; (1)Finition. Les paramètres d'au moins l'une des étapes suivantes : (a), (d), (e), (g) et (i), étant sélectionnés de façon à contrôler l'épaisseur des cristallites du film, de préférence de façon à faire croître l'épaisseur des cristallites présentes dans la phase cristalline au-delà de 30 Å. L'invention concerne également un film polyester biétiré obtenu par le procédé selon l'invention, caractérisé par : - un pourcentage d'amélioration du taux de rétention de l'allongement à la rupture par rapport à la valeur standard pour la référence de film considéré (résistance à l'hydrolyse dans un test PCT): compris entre 0 et 50 % ; - une adhésion donnée par la force de pelage dans un test TA comprise entre 1,0 et 10 N/cm; - et par la présence, dans sa phase cristalline, de cristallites d'épaisseur comprise entre 30 et 70 Å. L'invention vise enfin un panneau ou cellule photovoltaïque équipé d'au moins un film selon l'invention.</description><language>eng ; fre</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; GENERAL PROCESSES OF COMPOUNDING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PERFORMING OPERATIONS ; SEMICONDUCTOR DEVICES ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL ; WORKING-UP</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20130705&amp;DB=EPODOC&amp;CC=FR&amp;NR=2985261A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20130705&amp;DB=EPODOC&amp;CC=FR&amp;NR=2985261A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LACRAMPE VALERIE</creatorcontrib><creatorcontrib>BILLARD KARINE</creatorcontrib><creatorcontrib>STEVENSON TIMOTHY</creatorcontrib><title>Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer</title><description>The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dl/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase. The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dL/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase, thermosetting the film at a temperature of 180-250[deg] C, performing transverse relaxation of the film, winding the film and then performing cutting, coating, vacuum coating, annealing and/or UV, plasma or corona treatment, controlling the hydrolysis resistance and/or performance of the film, and increasing the thickness of crystallites to increase adhesion of film. The parameters of the steps are selected to control a thickness of the film or to increase a thickness of the film. The longitudinal stretching is performed at a draw ratio of 2-6, 2.5-5 or 2.8-4.5 and a draw temperature of 70-150[deg] C, 85-140[deg] C or 90-135[deg] C. The transverse stretching is performed at a draw ratio of 2-6, 3.5-5 and 3.5-4.5 and at a draw temperature of 95-150[deg] C, 105-145[deg] C and 110-140[deg] C. During the thermosetting process of the film, the rise in temperature is 4-14[deg] C/second. An independent claim is included for a biaxially oriented polyester film. L'invention concerne un procédé de fabrication d'un film polyester, de préférence un film polyéthylène téréphtalate PET, biétiré et comprenant des cristallites; caractérisé en ce qu'il comprend les étapes suivantes (a) Mise en oeuvre de granulés, à base de polyester (15000 et 50000D), et de viscosité intrinsèque comprise entre 0,4 et 1,3 dL/g ; (b)Séchage des granulés ; (c) Eventuel mélange ; (d) Extrusion ; (e) Refroidissement ; (f)Eventuelle enduction ; (g)Etirage biaxial du film ; (h) Eventuelle enduction ; (i)Thermofixation ; (j)Relaxation ; (k)Bobinage du film ; (1)Finition. Les paramètres d'au moins l'une des étapes suivantes : (a), (d), (e), (g) et (i), étant sélectionnés de façon à contrôler l'épaisseur des cristallites du film, de préférence de façon à faire croître l'épaisseur des cristallites présentes dans la phase cristalline au-delà de 30 Å. L'invention concerne également un film polyester biétiré obtenu par le procédé selon l'invention, caractérisé par : - un pourcentage d'amélioration du taux de rétention de l'allongement à la rupture par rapport à la valeur standard pour la référence de film considéré (résistance à l'hydrolyse dans un test PCT): compris entre 0 et 50 % ; - une adhésion donnée par la force de pelage dans un test TA comprise entre 1,0 et 10 N/cm; - et par la présence, dans sa phase cristalline, de cristallites d'épaisseur comprise entre 30 et 70 Å. L'invention vise enfin un panneau ou cellule photovoltaïque équipé d'au moins un film selon l'invention.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PERFORMING OPERATIONS</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</subject><subject>SHAPING OR JOINING OF PLASTICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>TRANSPORTING</subject><subject>WORKING OF PLASTICS</subject><subject>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNj0tOw0AMhrNhgYA7-AC0UotAsEQVEWvEvnInTsaSZxx5PKg5MrdgQjkAKy_8_a_r7rvHk3FA5zzBrLJQcTIYWRLQdtrCifHMKLKAGlN2Gi6Yx0UoEzSa5ugRBZ0uuloaNKpBwlxHDF7t1z2q65eKIwcIJHIPQdNsXKjAYMvKpGZiLa59cnH2uubpCAOXYNQCSCi1FgUwD-CRMtDZrQ6r2KNpnWKDWy1dGyRIVZwFF7Lb7mpEKXT3d2866N8-D-8bmvVIZcbQ5vix_9i_PD_un3avu4d_ID_B6HJt</recordid><startdate>20130705</startdate><enddate>20130705</enddate><creator>LACRAMPE VALERIE</creator><creator>BILLARD KARINE</creator><creator>STEVENSON TIMOTHY</creator><scope>EVB</scope></search><sort><creationdate>20130705</creationdate><title>Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer</title><author>LACRAMPE VALERIE ; BILLARD KARINE ; STEVENSON TIMOTHY</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2985261A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2013</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PERFORMING OPERATIONS</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR</topic><topic>SHAPING OR JOINING OF PLASTICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>TRANSPORTING</topic><topic>WORKING OF PLASTICS</topic><topic>WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>LACRAMPE VALERIE</creatorcontrib><creatorcontrib>BILLARD KARINE</creatorcontrib><creatorcontrib>STEVENSON TIMOTHY</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LACRAMPE VALERIE</au><au>BILLARD KARINE</au><au>STEVENSON TIMOTHY</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer</title><date>2013-07-05</date><risdate>2013</risdate><abstract>The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dl/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase. The process comprises providing a first material constituted of discrete elements such as granules of polyester having an average molecular weight of 18000-40000 and an intrinsic viscosity of 0.6-1.2 dL/g, drying the first material, optionally mixing the raw materials to promote homogenization, extruding the first material through a die for forming a monolayer or a multilayer and the rapidly cooling, optionally coating a side of the film to impart specific properties to the film, biaxially stretching the film according to a draw ratio and a draw temperature to obtain a crystalline phase, thermosetting the film at a temperature of 180-250[deg] C, performing transverse relaxation of the film, winding the film and then performing cutting, coating, vacuum coating, annealing and/or UV, plasma or corona treatment, controlling the hydrolysis resistance and/or performance of the film, and increasing the thickness of crystallites to increase adhesion of film. The parameters of the steps are selected to control a thickness of the film or to increase a thickness of the film. The longitudinal stretching is performed at a draw ratio of 2-6, 2.5-5 or 2.8-4.5 and a draw temperature of 70-150[deg] C, 85-140[deg] C or 90-135[deg] C. The transverse stretching is performed at a draw ratio of 2-6, 3.5-5 and 3.5-4.5 and at a draw temperature of 95-150[deg] C, 105-145[deg] C and 110-140[deg] C. During the thermosetting process of the film, the rise in temperature is 4-14[deg] C/second. An independent claim is included for a biaxially oriented polyester film. L'invention concerne un procédé de fabrication d'un film polyester, de préférence un film polyéthylène téréphtalate PET, biétiré et comprenant des cristallites; caractérisé en ce qu'il comprend les étapes suivantes (a) Mise en oeuvre de granulés, à base de polyester (15000 et 50000D), et de viscosité intrinsèque comprise entre 0,4 et 1,3 dL/g ; (b)Séchage des granulés ; (c) Eventuel mélange ; (d) Extrusion ; (e) Refroidissement ; (f)Eventuelle enduction ; (g)Etirage biaxial du film ; (h) Eventuelle enduction ; (i)Thermofixation ; (j)Relaxation ; (k)Bobinage du film ; (1)Finition. Les paramètres d'au moins l'une des étapes suivantes : (a), (d), (e), (g) et (i), étant sélectionnés de façon à contrôler l'épaisseur des cristallites du film, de préférence de façon à faire croître l'épaisseur des cristallites présentes dans la phase cristalline au-delà de 30 Å. L'invention concerne également un film polyester biétiré obtenu par le procédé selon l'invention, caractérisé par : - un pourcentage d'amélioration du taux de rétention de l'allongement à la rupture par rapport à la valeur standard pour la référence de film considéré (résistance à l'hydrolyse dans un test PCT): compris entre 0 et 50 % ; - une adhésion donnée par la force de pelage dans un test TA comprise entre 1,0 et 10 N/cm; - et par la présence, dans sa phase cristalline, de cristallites d'épaisseur comprise entre 30 et 70 Å. L'invention vise enfin un panneau ou cellule photovoltaïque équipé d'au moins un film selon l'invention.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng ; fre
recordid cdi_epo_espacenet_FR2985261A1
source esp@cenet
subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERAL PROCESSES OF COMPOUNDING
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
SEMICONDUCTOR DEVICES
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
title Fabricating polyester film e.g. biaxially oriented polyethylene terephthalate film used for manufacturing photovoltaic cell, comprises drying material constituted of discrete elements and then extruding through die to form multilayer
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-28T11%3A57%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=LACRAMPE%20VALERIE&rft.date=2013-07-05&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EFR2985261A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true