FI87550B - Kompositpolyesterfilmer och foerfarande foer deras framstaellning - Google Patents

Kompositpolyesterfilmer och foerfarande foer deras framstaellning Download PDF

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Publication number
FI87550B
FI87550B FI875677A FI875677A FI87550B FI 87550 B FI87550 B FI 87550B FI 875677 A FI875677 A FI 875677A FI 875677 A FI875677 A FI 875677A FI 87550 B FI87550 B FI 87550B
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Finland
Prior art keywords
mixture
film
crystalline
polyester
copolyester
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FI875677A
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English (en)
Finnish (fi)
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FI875677A0 (fi
FI87550C (sv
FI875677A (fi
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Pierre Grosjean
Marcel Eyraud
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Rhone Poulenc Films
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    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • 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
    • B32B37/15—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 being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—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 being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
    • C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
    • C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/6886—Dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • 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
    • B32B2307/704—Crystalline
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • 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]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Organic Insulating Materials (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Claims (17)

1. Förfarande för framställning av orienterade komposit-polyesterfilmer med bättre häftning vid olika finishytor, vilka filmer bestär av en kristallin eller halvkristallin polyesterstödfilm (A), och ätminstone pä ena sidan av denna ett enhetligt primärt häftskikt (B), som är baserat pä en kopolyester med oxisulfonylgrupper, varvid nämnda skikt sprids medelst koextrusion, kännetecknat av att det primära häftskiktet framställs medelst en binärkomposi-tion, som innehäller: a) kristalliserbar polyester i
2. Förfarande enligt patentkravet 1, känneteck-n a t av att den kristallina, halvkristallina eller kris-talliserbara polyestern, som användes för bildande av skik-tet (A) och binärkompositionens komponent (a) är en tere- ftalsyrahomopolyester eller -kopolyester innehällande ät-minstone 80 mol-% tereftalatenheter.
3. Förfarande enligt patentkravet 2, känneteck-n a t av att den kristallina, halvkristallina eller kris-talliserbara polyestern, som användes för bildande av skik-tet (A) och binärkompositionens komponent (a) är polyetylen-tereftalat (ett polytereftaiat av etylenglykol).
4. Förfarande enligt nägot av patentkraven 1-3, kän- n e t e c k n a t av att binärkompositionens komponent (h) är en kopolyester, vars flera oxisulfonylgrupper har den allmänna formeln: (S03)„M (I)
48 S 7 5 5 O där: - n är 1 eller 2 - M är en väteatom, en alkalimetall, en alkalisk jordarts-metall, en ammoniumkatjon eller en kvaternär anunoniumkatjon.
4. H 7 5 5 ϋ b) en kopolyester som innehäller flera oxisulfonylgrupper, varvid antalet merer med oxisulfonylgrupper uttryckta i för-hällande tili 100 motsvarande merer är mellan 30 och 20, varvid förhäI1andet mellan komponenterna (a) och (b) i blandningon är sädant, att antalet i blandningen mellan de oxisulfonylgrupphaltiga mererna i förhällande tili det to-tala antalet likartade merer är mellan 2 och 15 %.
5. Förfarande enligt nägot av patentkraven 1-4, k ä n -netecknat av att den sora binärkompositionens kom-ponent (b) använda sulfonerade kopolyestern har flera en-heter, som härledds ur aromatiska disyror eller derivat av dem, som har formeln: Xv. Γ - (SO3 )nM p (II) L där i: - n är 1 eller 2 - M är en väteatom, en alkalimetall, en alkalisk jordarts-metall, en ammoniumkatjon eller en kvaternär ammoniumkatjon - Z är en flervärd aromatisk radikal - X och Y är hydroxylradikaler eller derivat därav; estrar av lägre alifatiska alkoholer eller syrahalogenider (klo-rider, bromider) - p är heltalet 1 eller 2.
6. Förfarande enligt nägot av patentkraven 1-5, k ä n -netecknat av att den som binärkompositionens kom- I: 49 h>7 550 ponent (b) använda sulfonerade kopolyestern har flera en-heter som härledds ur hydroxisulfonylisoftalsyra.
7. Förfarande enligt nägot av patentkraven 1-6, k ä n -netecknat av att den som binärkompositionens kom-ponent (b) använda sulfonerade kopolyestern har dessutom flera enheter, som härledds ur tereftalsyra.
8. Förfarande enligt patentkravet 7, känneteck-n a t av att den som binärkompositionens komponent (b) använda sulfonerade kopolyestern har samtidigt flera enheter, som härledds ur tereftalsyra och flera enheter, som härledds ur isoftalsyra.
9. Förfarande enligt patentkravet 8, känneteck-n a t av att antalet ur isoftalsyra härledda enheter i den sulfonerade kopolyestern kan uppgä till· 70 % av det hela antalet tereftalat- och isoftalatenheter.
10. Förfarande enligt nägot av patentkraven 1-9, k ä n -netecknat av att den som binärkompositionens komponent (b) använda sulfonerade kopolyestern har flera enheter, som härledds ur etylenglykol och/eller oligomerer därav med en molekylvikt under 600.
11. Förfarande enligt patentkravet 10, kannet, eck-n a t av att hai.ten i den sulfonerade kopolyestern av en- so H 7 5 5 0 heter härledda ur etylenglykololigomererna är mellan 2 och 30 vikt-%.
12. Förfarande enligt nägot av patentkraven 1-11, k ä n -netecknat av att binärkompositionen innehäller mellan 20 och 80 vikt-% sulfonerad kopolyester (b) och mellan 80 och 20 vikt-% av kristallin, halvkristallin eller kris-talliserbar polyester.
13. Förfarande enligt nägot av patentkraven 1-12, k ä n -netecknat av att den kristalliserbara polyestern i ett första slitsmunstycke koextruderas tili en amorf film (A) och samtidigt koextruderas i ätminstone ett annat mun-stycke, parallellt med det första munstycket, en binärkompo-sition (a) (b) tili ätminstone en film (B) pä ätminstone ena sidan av filmen (A), varefter filmerna nedkyles, hetdrages och värmefixeras pä i och för sig känt sätt.
14. Orienterade kompositpolyesterfilmer, som bättre än tidigare haftar vid olika finishbeläggningar, vilka filmer : - bestär av en kristallin eller halvkristallin polyesterstöd- film (A), och ätminstone pä ena sidan av denna ett enhetligt primärt häftskikt (B), som baserar sig pä en kopolyester med oxisulfonylgrupper, kännetecknade av att skik-tet (B) bestär av en binärkomposition innehällande: a) kristallin eller halvkristallin polyester 51 -7.-,0 b) en kopolyester, som innehäller flera oxisulfonylgrupper, där antalet merer med oxisulfonylgrupper uttryckta i förhäl-landet till 100 likartade merer är mellan 3 och 20, varvid förhällande mellan komponenterna (a) och (b) i blandningen är sädant, att antalet merer med oxisulfonylgrupper i för-hällande till det totala antalet merer i blandningen utgör mellan 2 och 15 %.
15. Orienterade kompositpolyesterfilmer enligt patentkravet 14, vilka bättre än tidigare häftar vid olika finishbelägg-ningar, kännetecknade av att filmens totala tjocklek varierar mellan 5 och 300 pm och filmens (filmer-nas) (B) tjocklek är mellan 0,3 och 10 pm.
16. Orienterade kompositpolyesterfilmer enligt patentkravet 14, som bättre än tidigare häftar vid olika finishbeläggnin-gar, kännetecknade av att filmens totala tjocklek överstiger 40 pm och att binärkompositionen bestäende av filmen eller filmerna (B), innehäller 3 % eller mera merer med oxisulfonylgrupper i förhällande till det totala antalet - ; likartade merer i blandningen.
17. Orienterade kompositpolyesterfilmer enligt nägot av patentkraven 14-16, som bättre än tidigare häftar vid olika finishbeläggningar, kännetecknade av att finishbeläggningen tillhör en grupp bestäende av dia/.o-, malt - och t ryckbel äggn i nga r .
FI875677A 1986-12-23 1987-12-22 Kompositpolyesterfilmer och förfarande för deras framställning FI87550C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8618231A FR2608507B1 (fr) 1986-12-23 1986-12-23 Films polyester composites a adherence amelioree et leur procede d'obtention
FR8618231 1986-12-23

Publications (4)

Publication Number Publication Date
FI875677A0 FI875677A0 (fi) 1987-12-22
FI875677A FI875677A (fi) 1988-06-24
FI87550B true FI87550B (fi) 1992-10-15
FI87550C FI87550C (sv) 1993-01-25

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US (1) US5073435A (sv)
EP (1) EP0272993B1 (sv)
JP (1) JPS63168350A (sv)
KR (1) KR880007235A (sv)
AT (1) ATE61385T1 (sv)
AU (1) AU600542B2 (sv)
BR (1) BR8707197A (sv)
CA (1) CA1325702C (sv)
DE (1) DE3768455D1 (sv)
DK (1) DK164267C (sv)
ES (1) ES2021387B3 (sv)
FI (1) FI87550C (sv)
FR (1) FR2608507B1 (sv)
GR (1) GR3001872T3 (sv)
IL (1) IL84712A (sv)
IN (1) IN170543B (sv)
NO (1) NO172380C (sv)
NZ (1) NZ223038A (sv)
PT (1) PT86447B (sv)
ZA (1) ZA879551B (sv)

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WO1998041588A1 (en) * 1997-03-19 1998-09-24 Eastman Chemical Company Enhanced adhesion of polyester coatings
FR2766199B1 (fr) * 1997-07-17 1999-10-22 Toray Plastics Europ Sa Films polyester composites a proprietes barriere
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DE10002178A1 (de) * 2000-01-20 2001-07-26 Mitsubishi Polyester Film Gmbh Matte, UV-stabile, koextrudierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10002181A1 (de) * 2000-01-20 2001-07-26 Mitsubishi Polyester Film Gmbh Matte, UV-stabile, schwerentflammbare, thermoformbare koextrudierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10002161A1 (de) * 2000-01-20 2001-07-26 Mitsubishi Polyester Film Gmbh Matte, flammhemmend ausgerüstete koextrudierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
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DE10002169A1 (de) * 2000-01-20 2001-07-26 Mitsubishi Polyester Film Gmbh Matte, UV-stabile, thermoformbare, koextrudierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
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Publication number Publication date
ES2021387B3 (es) 1991-11-01
NO875346D0 (no) 1987-12-21
IN170543B (sv) 1992-04-11
NO172380B (no) 1993-04-05
DE3768455D1 (de) 1991-04-11
FI875677A0 (fi) 1987-12-22
BR8707197A (pt) 1988-08-16
US5073435A (en) 1991-12-17
CA1325702C (fr) 1994-01-04
FI87550C (sv) 1993-01-25
IL84712A (en) 1991-05-12
NO875346L (no) 1988-06-24
DK164267C (da) 1992-10-19
PT86447B (pt) 1990-11-20
NO172380C (no) 1993-07-14
DK164267B (da) 1992-06-01
EP0272993A3 (en) 1988-08-24
EP0272993A2 (fr) 1988-06-29
AU8293887A (en) 1988-06-23
ATE61385T1 (de) 1991-03-15
DK678187D0 (da) 1987-12-22
AU600542B2 (en) 1990-08-16
KR880007235A (ko) 1988-08-26
FR2608507B1 (fr) 1989-03-31
JPS63168350A (ja) 1988-07-12
DK678187A (da) 1988-08-29
NZ223038A (en) 1989-12-21
FI875677A (fi) 1988-06-24
ZA879551B (en) 1988-06-16
EP0272993B1 (fr) 1991-03-06
FR2608507A1 (fr) 1988-06-24
IL84712A0 (en) 1988-05-31
GR3001872T3 (en) 1992-11-23
PT86447A (fr) 1988-01-01

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