RS51344B2 - Višeslojna folija i postupak za njenu proizvodnju - Google Patents

Višeslojna folija i postupak za njenu proizvodnju

Info

Publication number
RS51344B2
RS51344B2 RS20100090A RSP20100090A RS51344B2 RS 51344 B2 RS51344 B2 RS 51344B2 RS 20100090 A RS20100090 A RS 20100090A RS P20100090 A RSP20100090 A RS P20100090A RS 51344 B2 RS51344 B2 RS 51344B2
Authority
RS
Serbia
Prior art keywords
layer
film
extrusion
poly
film according
Prior art date
Application number
RS20100090A
Other languages
English (en)
Inventor
Harald Schmidt
Christoph Hess
Johannes Mathar
Ralf Hackfort
Original Assignee
Biotec Biologische Naturverpackungen Gmbh & Co Kg
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38191307&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=RS51344(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Biotec Biologische Naturverpackungen Gmbh & Co Kg filed Critical Biotec Biologische Naturverpackungen Gmbh & Co Kg
Publication of RS51344B publication Critical patent/RS51344B/sr
Publication of RS51344B2 publication Critical patent/RS51344B2/sr

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Classifications

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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
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    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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    • B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
    • B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
    • B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
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    • Y10T156/10—Methods of surface bonding and/or assembly therefor
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    • 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
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Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Wrappers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)

Claims (29)

PATENTNI ZAHTEVI
1. Višeslojna folija, naročito za potrebe pakovanja, koja obuhvata najmanje jedan prvi sloj A i najmanje jedan drugi sloj B, pri čemu sloj B sadrži termoplastični skrob i sloj A sadrži termoplastični poliester i najmanje jedno pomoćno sredstvo za preradu u količini do najviše 5 tež. % u odnosu na ukupni sadržaj sloja A, pri čemu je pomoćno sredstvo za preradu odabrano od polimera, koji sadrži polimerni lanac, koji je od strane reaktivne grupe modifikovan, pri čemu se polimer polimernog lanca može mešati sa najmanje jednom polimerskom komponentom sloja A višeslojne folije i reaktivnu grupu pogodnu da hemijski reaguje sa najmanje jednom polimerskom komponentom sloja B višeslojne folije.
2. Višeslojna folija prema Zahtevu 1, naznačena time, što ona u sloju A sadrži termoplastični poliester, koji je u skladu sa standardom EN 13432 biološki razgradiv termoplastični poliester.
3. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što je termoplastični poliester biopolimer na bazi jedne ili više polihidroksikarbonskih kiselina.
4. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što je termoplastični poliester izabran iz grupe sastavljene od poli[hidroksialkanoata] (PHA); poli[alkilensukcinata] (PAS) kao, na prime, poli[butilensukcinata] (PBS), poli [alkilentereftalata] (PAT), kao, na primer, poli[etilentereftalat] (PET), alifatično -aromatičnih kopoliestera i poli[p-dioksanona] (PPDO) kao i kopolimera i njihovih mešavina.
5. Višeslojna folija prema Zahtevu 4, naznačena time, što je poli[hidroksialkanoat] (PHA) izabran iz grupe sastavljene iz poli[hidroksietanata] (na primer poliglikolna kiselina, PGA), poli[hidroksipropanoata] (na primer polimlečna kiselina, polilaktid, PLA), poli[hidroksibutanoata] (na primer polihidroksibuterna kiselina, PHB), poli[hidroksipentanoata] (na primer poli[hidroksivalerat], PHV) i poli[hidroksiheksanoata] (na primer polilkaprolakton, PCL), kao i kopolimera i njihovih mešavina.
6. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što sloj B sadrži bar delimično termoplastični obradivi skrob sa sadržajem vlage manjim od 6 tež. %, prvenstveno manjim od 3 tež. % u odnosu na ukupni sadržaj skroba.
7. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što se u sloju B nalazi termoplastični skrob, koji se karakteriše time, što jedna folija proizvedena od termoplastičnog skroba ima zateznu čvrstoću u skladu sa DIN 53455
od 2 do 10 N/mm<2>, naročito od 4 do 8 N/mm<2>i/ili relativno izduženje u skladu sa DIN 53455 od 80 do 200 %, naročito od 120 do 180 %.
8. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, da se termoplastični skrob može dobiti pomoću postupaka: (a) mešavine skroba i/ili jednog derivata skroba sa najmanje 15 tež. % jednog omekšivača - plastifikatora kao, na primer, glicerina i/ili sorbitola, (b) dovođenja termičke i/ili mehaničke energije, (c) deimičnog odstranjivanja sadržaja prirodne vlage iz skroba ili derivata skroba na sadržaja vlage manji od 6 tež. %.
9. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što je sloj A uglavnom sastavljen od termoplastičnog poliestera i/ili što je sloj B uglavnom sastavljen od termoplastičnog skroba.
10. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što se sloj B uglavnom sastoji iz polimer - blenda, koji sadrži termoplastični skrob i minimalno neki dodatni termoplastični materijal, naročito termoplastični poliester.
11. Višeslojna folija prema Zahtevu 10, naznačena time, što se dodatni termoplastični materijal u polimer - blendu nalazi u količini od 1 do 80 tež. %, naročito od 5 do 30 tež. %, svedeno na ukupnu težinu polimer - blenda.
12. Višeslojna folija prema Zahtevu 10 ili 11, naznačena time, što dodatni termoplastični materijal u polimer - blendu sadrži u sebi uglavnom reciklat višeslojne folije.
13. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija ima ukupnu debljinu od 100 do 2000 μm, naročito od 200 do 800 μm.
14. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što svaki pojedinačni sloj folije ima debljinu od 10 do 1000 μm, naročito od 10 do 700 μm.
15. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što je folija ustvari jedna troslojna folija sa sledećom izvedbom slojeva: sloj A - sloj B - sloj A.
16. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što je između sloja A i sloja B predviđen najmanje jedan sloj za posredovanje pri prijanjanju H, naročito sloj H sa sredstvom za prijanjanje proizvedeno od blok - kopolimera.
17. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija predstavlja jednu troslojnu folijuju sa sledećio izvedbom slojeva: sloj A - sloj H za posredovanje pri prijanjanju - sloj B - sloj H za posredovanje pri prijanjanju - sloj A.
18. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija ima u skladu sa DIN 53455 zateznu čvrstoću od 10 do 40 N/mm<2>, prvenstveno od 15 do 30 N/mm<2>.
19. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija ima propustljivost kiseonika prema standardu ASTM F 1927-98 pri 23<0>C, 50 r.F. i debljini folije od 400 μm od 1 do 50, prvenstveno 1,5 do 20 cm<3>/m<2>d.
20. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija ima propustljivost vodene pare prema standardu ASTM F 1949 pri 23<0>C, 75 r.F. i debljini folije od 400 μm od 1 do 100, prvenstveno 2 do 10 cm<3>/m<2>d.
21. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što folija ima propustljivost ugljen-dioksida prema standardu ASTM D 1434 pri 23<0>C, 50 r.F. i debljini folije od 400 μm od 0,5 do 5, prvenstveno 1 do 2,5 cm<3>/m<2>d.
22. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što se najmanje jedan sloj folije izrađuje pomoću ekstrudovanja, naročito pomoću ekstrudovanja sa produvavanjem (brizganje), ekstrudovanjem ravne folije, ekstrudovanje cast- folije i/ili druge forme folije dobijene ekstrudovanjem sa duvanjem.
23. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što se ukupno svi slojevi folije izrađuju pomoću ekstrudovanja, naročito pomoću ekstrudovanja folije sa produvavanjem, ekstrudovanjem ravne folije i/ili druge forme dobijene ekstrudovanjem sa duvanjem.
24. Višeslojna folija prema jednom od predhodnih Zahteva, naznačena time, što se folija izrađuje pomoću koekstrudovanja.
25. Postupak za proizvodnju višeslojne folije prema jednom od predhodnih zahteva, pri čemu višeslojna folija obuhvata najmanje jedan sloj A, najmanje jedan sloj B kao i u datom slučaju dalje slojeve, naročito još jedan dalji sloj A, naznačen time, što su proizvodni koraci:
(a) ekstrudovanje materijala koji sadrži u sebi najmanje jedan termoplastični poliester za jednu foliju, čime će se izraditi najmanje jedan sloj A;
(b) ekstrudovanje materijala koji sadrži u sebi termoplastični obradivi skrob za jednu foliju, čime će se izraditi najmanje jedan sloj B; i
(c) u najmanju ruku delimično površinsko spajanje pojedinačnih slojeva, čime će se izraditi višeslojna folija.
26. Postupak prema Zahtevu 25, naznačen time, što će se proizvodni koraci (a) do (c) simultano sprovoditi u procesu koekstrudiranja, naročito pomoću ekstrudiranja folije sa produvavanjem, ekstrudiranja ravne folije, ekstrudiranja kast - folije i/ili druge forme dobijene ekstrudiranjem sa duvanjem.
27. Postupak prema Zahtevu 25 ili 26, naznačen time, što se višeslojna folija posle njene proizvodnje može seći prema uslovima primene na delove u željenim dimenzijama.
28. Postupak prema Zahtevu 27, naznačen time, što se otsečeni ostaci koji pretstavljaju višak mogu u najmanju ruku iskoristiti kao delimični materijal za ekstrudovanje sloja B u proizvodnom koraku (b).
29. Pakovanja za životne namirnice, prvenstveno za sveže meso, sveže pečenu robu, sir, sveže voće i povrće, pića i/ili kafe, koriste višeslojnu foliju izvedenu prema jednom od Zahteva od 1 do 24.
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US20090179069A1 (en) 2009-07-16
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HRP20100135T1 (hr) 2010-04-30
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IL194687A (en) 2011-12-29
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CN101460302A (zh) 2009-06-17
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