HRP20201474T1 - Kompozitne daske i ploče - Google Patents

Kompozitne daske i ploče Download PDF

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Publication number
HRP20201474T1
HRP20201474T1 HRP20201474TT HRP20201474T HRP20201474T1 HR P20201474 T1 HRP20201474 T1 HR P20201474T1 HR P20201474T T HRP20201474T T HR P20201474TT HR P20201474 T HRP20201474 T HR P20201474T HR P20201474 T1 HRP20201474 T1 HR P20201474T1
Authority
HR
Croatia
Prior art keywords
core
particles
layer
resin
surface layer
Prior art date
Application number
HRP20201474TT
Other languages
English (en)
Inventor
Darko Pervan
Original Assignee
Ceraloc Innovation Ab
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 Ceraloc Innovation Ab filed Critical Ceraloc Innovation Ab
Publication of HRP20201474T1 publication Critical patent/HRP20201474T1/hr

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    • 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
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    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y10T428/31899—Addition polymer of hydrocarbon[s] only

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Claims (15)

1. Postupak za izradu građevinske ploče (1), naznačen time da postupak sadrži: · osiguravanje jezgre (5) formiranjem sloja nalik otiraču koja sadrži kombinaciju suhe mješavine (25) sirovih čestica drva (20) u obliku praha i termoplastičnih čestica (21a) u obliku praha, zagrijavanje i hlađenje sloja nalik otiraču pod tlakom na način da list nastaje nakon prešanja, · nanošenje površinskog sloja (4) koji sadrži praškastu smjesu koja sadrži drvene čestice (20) i termoreaktivne smole na jezgri (5), . laminiranje osnovnog površinskog praškastog sloja (4) u postupku prešanja vruće-vruće na jezgri (5) na način da nastaje građevinska ploča (1), pri čemu su drvene čestice (20) iz površinskog sloja (4) i jezgra (5) međusobno povezane sa stvrdnutom termoreaktivnom smolom.
2. Postupak prema zahtjevu 1, naznačen time da površinski sloj (4) sadrži termoplastični materijal (21).
3. Postupak prema zahtjevu 1 ili 2, naznačen time da termoreaktivna smola je amino smola kao što je melamin formaldehidna smola, urea formaldehidna smola, fenol formaldehidna smola ili njihova kombinacija.
4. Postupak prema bilo kojem od zahtjeva 1-3, naznačen time da termoplastične čestice (21a) suhog dijela (25) sadrže polivinilklorid (PVC), polipropilen (PP), ili polietilen (PE).
5. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da termoplastične čestice (21a) suhe mješavine (25) imaju prosječnu veličinu čestica od oko 0,3 mm ili manje.
6. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da je površinski sloj (4) nanesen u obliku dva sloja (3, 2) poredana jedan iznad drugog i pri čemu gornji sloj (2) navedena dva sloja (3, 2) sadrži izbjeljena celulozna vlakna i termoreaktivne čestice.
7. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da su drvene čestice (20) jezgre (5), prije nego što se dovede jezgra, sušene do sadržaja vlage od oko 2% ili manje.
8. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da se drvene čestice (20) jezgre (5) prije nanošenja prosiju na prosječnu veličinu od 1,0 mm ili manje.
9. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da je sadržaj čestica drva (20) u jezgri (5) u rasponu od oko 30-80 težinskih %.
10. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da jezgra (5) nastaje pod tlakom manjim od 20 bara.
11. Postupak prema bilo kojem od prethodnih zahtjeva 2-10, naznačen time da je termoplastični materijal (21) sadržan u praškastoj smjesi površinskog sloja (4) i da sadrži termoplastične čestice (21a), pri čemu termoplastične čestice imaju prosječnu veličinu od oko 0,2 mm ili manje.
12. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da su čestice drva (20) površinskog sloja (4) manje od čestica drva (20) jezgre (5).
13. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da jezgra (5) sadrži među sloj (5b) i gornji sloj (5a), a gdje među sloj (5b) sadrži veću količinu termoplastičnog materijala (21) od gornjeg sloja (5a).
14. Postupak prema bilo kojem od prethodnih zahtjeva, naznačen time da površinski sloj (4) sadrži prozirni sloj otporan na trošenje (2) koji sadrži termoreaktivnu smolu, čestice otporne na trošenje, kao što su čestice aluminijevog oksida (22) i celulozna vlakna, poželjno izbijeljena celulozna vlakna (20).
15. Postupak u skladu s patentnim zahtjevom 14, naznačen time da je termoreaktivna smola prozirnog sloja otpornog na trošenje (2) amino smola kao što je melamin formaldehidna smola, urea formaldehidna smola, fenol formaldehidna smola, ili njihova kombinacija.
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