ITVI20130157A1 - POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES - Google Patents
POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES Download PDFInfo
- Publication number
- ITVI20130157A1 ITVI20130157A1 IT000157A ITVI20130157A ITVI20130157A1 IT VI20130157 A1 ITVI20130157 A1 IT VI20130157A1 IT 000157 A IT000157 A IT 000157A IT VI20130157 A ITVI20130157 A IT VI20130157A IT VI20130157 A1 ITVI20130157 A1 IT VI20130157A1
- Authority
- IT
- Italy
- Prior art keywords
- silver
- furniture
- polymeric sheet
- polymeric
- door
- Prior art date
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- 229920000642 polymer Polymers 0.000 title claims description 17
- 230000000844 anti-bacterial effect Effects 0.000 title description 23
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 50
- 239000004332 silver Substances 0.000 claims description 50
- 229910052709 silver Inorganic materials 0.000 claims description 50
- 238000001125 extrusion Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 239000000975 dye Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000011093 chipboard Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000013047 polymeric layer Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 2
- AMHXQVUODFNFGR-UHFFFAOYSA-K [Ag+3].[O-]P([O-])([O-])=O Chemical class [Ag+3].[O-]P([O-])([O-])=O AMHXQVUODFNFGR-UHFFFAOYSA-K 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- OTCVAHKKMMUFAY-UHFFFAOYSA-N oxosilver Chemical class [Ag]=O OTCVAHKKMMUFAY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 150000003378 silver Chemical class 0.000 claims description 2
- 229910001923 silver oxide Inorganic materials 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 12
- 239000004926 polymethyl methacrylate Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 4
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- -1 silver ions Chemical class 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JKNZUZCGFROMAZ-UHFFFAOYSA-L [Ag+2].[O-]S([O-])(=O)=O Chemical compound [Ag+2].[O-]S([O-])(=O)=O JKNZUZCGFROMAZ-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
Description
FOGLIO POLIMERICO CON PROPRIETÀ’ ANTIBATTERICHE. POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES.
DESCRIZIONE DESCRIPTION
L’invenzione si riferisce ad un foglio polimerico specialmente adatto all'incollaggio su pannelli del tipo truciolare, MDF (pannello di fibra a media densità - medium density fibreboard) o simili. The invention refers to a polymeric sheet especially suitable for gluing on chipboard type panels, MDF (medium density fibreboard) or the like.
Il depositante ha trovato che il pericolo che gli arredamenti, i mobili e le porte soggetti a venire in contatto con tante persone in luoghi pubblici, come per esempio arredamenti, mobili e porte in scuole, stazioni, aeroporti ecc., contribuiscano alla diffusione di batteri e simili dannosi per la salute viene sottovalutato, mentre negli studi medici e negli ospedali vengono effettuate frequenti disinfezioni laboriose che spesso richiedono l’uso di sostanze aggressive. The depositor found that the danger that furniture, furniture and doors subject to coming into contact with many people in public places, such as furniture, furniture and doors in schools, stations, airports, etc., contribute to the spread of bacteria and similar harmful to health is underestimated, while frequent laborious disinfections are carried out in doctors' offices and hospitals, often requiring the use of aggressive substances.
Gli arredamenti, mobili e porte che vengono toccati da tante persone o che si trovano in ambienti soggetti alla presenza di un’elevata quantità di batteri e simili possono così essere una fonte per la propagazione di malattie e infezioni. Furniture, furniture and doors that are touched by many people or that are in environments subject to the presence of a high amount of bacteria and the like can thus be a source for the spread of diseases and infections.
Lo scopo principale dell’invenzione è quello di superare i suddetti svantaggi e di limitare o impedire la diffusione di batteri e di infezioni e malattie da essi derivanti attraverso arredamenti, mobili e porte in modo semplice ed economico. Come arredamento o mobili si intendono per esempio in modo non limitativo rivestimenti di pareti, pavimenti, soffitti, come anche piani, cassetti, tavoli, sedie, mobili da cucina, mobili per il bagno, mobili per comunità, mobili per luoghi pubblici, per ospedali e per studi medici. The main purpose of the invention is to overcome the aforementioned disadvantages and to limit or prevent the spread of bacteria and infections and diseases deriving from them through furnishings, furniture and doors in a simple and economical way. For example, furniture or furniture is understood as but not limited to wall coverings, floors, ceilings, as well as tops, drawers, tables, chairs, kitchen furniture, bathroom furniture, community furniture, furniture for public places, for hospitals. and for medical studies.
Lo scopo viene raggiunto da un foglio polimerico adatto all’incollaggio su pannelli per la realizzazione di mobili di diverso tipo come per esempio sopra specificato che è già di per sé antibatterico in quanto contiene argento. In altre parole, lo scopo viene raggiunto da un foglio polimerico come definito nella prima rivendicazione. L’argento è noto da tanto tempo per le sue capacità anti-batteriche. Un pannello ricoperto con un siffatto foglio presenta delle caratteristiche antibatteriche dovuto all’azione anti-batterica dell’argento contenuto nel foglio secondo l’invenzione. The purpose is achieved by a polymeric sheet suitable for gluing on panels for the construction of different types of furniture as for example specified above which is already antibacterial in itself as it contains silver. In other words, the object is achieved by a polymeric sheet as defined in the first claim. Silver has been known for a long time for its anti-bacterial abilities. A panel covered with such a sheet has antibacterial characteristics due to the anti-bacterial action of the silver contained in the sheet according to the invention.
La caratteristica principale del foglio polimerico secondo l’invenzione, oltre a quelle già ampiamente note per fogli del tipo, è che detto foglio polimerico ha caratteristiche antibatteriche. In altre parole, il foglio polimerico dell'invenzione è costituito da un materiale che ha intrinsecamente qualità antibatteriche, essendo il polimero di cui è costituito additivato di sostanza specifica antibatterica. The main feature of the polymeric sheet according to the invention, in addition to those already widely known for sheets of the type, is that said polymeric sheet has antibacterial characteristics. In other words, the polymeric sheet of the invention is made up of a material which intrinsically has antibacterial qualities, the polymer of which it is made up with an additive of specific antibacterial substance.
Gli arredamenti, i mobili e le porte ricoperti con un foglio con proprietà anti-batteriche hanno la proprietà di combattere batteri e simili in modo continuo e immediato appena un batterio o simile viene depositato sul mobile o sulla porta. La disinfezione e pulizia di arredamenti, mobili o porte per renderli asettici perde importanza e comporta un grande risparmio in termini di tempo e materiale per la disinfezione e/o pulizia ed evita o limita l’utilizzo di sapone/disinfettanti eventualmente dannosi per la salute e l’ambiente. Un foglio secondo l’invenzione permette di attrezzare qualsiasi mobile, arredamento o porta già in uso con capacità anti-batteriche. Anche mobili, arredamenti e porte del settore pubblico che generalmente non vengono sottoposti a disinfezioni particolari, oltre alla pulizia normale, spesso non molto frequente e curata, ottengono dopo il rivestimento con un foglio polimerico secondo l’invenzione proprietà anti-batteriche e contribuiscono alla limitazione della diffusione di batteri e simili e di malattie e infezioni collegate ad essi in luoghi pubblici. Furnishings, furniture and doors covered with a sheet with anti-bacterial properties have the property of fighting bacteria and the like in a continuous and immediate way as soon as a bacterium or similar is deposited on the furniture or on the door. The disinfection and cleaning of furnishings, furniture or doors to make them aseptic loses importance and involves a great saving in terms of time and material for disinfection and / or cleaning and avoids or limits the use of soap / disinfectants that may be harmful to health and the environment. A sheet according to the invention allows you to equip any piece of furniture, furniture or door already in use with anti-bacterial capabilities. Even furniture, furnishings and doors in the public sector that generally do not undergo particular disinfection, in addition to normal cleaning, often not very frequent and careful, obtain after coating with a polymeric sheet according to the invention anti-bacterial properties and contribute to the limitation the spread of bacteria and the like and related diseases and infections in public places.
Non risulta al depositante che siano stati prodotti o utilizzati pannelli per la produzione di mobili, arredamenti o porte, generalmente ricoperti da fogli polimerici che abbiano proprietà del tipo antibatterico. Sembra che nessuno si è mai posto il problema di intervenire sulla struttura stessa di arredamenti, mobili e porte per limitare la diffusione di batteri e simili. The depositor does not know that panels have been produced or used for the production of furniture, furnishings or doors, generally covered with polymeric sheets that have antibacterial properties. It seems that no one has ever faced the problem of intervening on the structure of furnishings, furniture and doors to limit the spread of bacteria and the like.
II rivestimento con un foglio polimerico secondo l’invenzione garantisce una protezione anti-batterica continua che si rende più indipendente da altri interventi di trattamenti anti-batterici. The coating with a polymeric sheet according to the invention guarantees continuous anti-bacterial protection which becomes more independent from other anti-bacterial treatments.
Idoneo per l’uso nell’invenzione è l’argento in qualsiasi forma, elementare o non, in grado di svolgere funzioni anti-batteriche o antimicrobiche in genere, cioè di uccidere o indebolire microorganismi patogeni o germi, in particolare argento nelle forme atte a rilasciare ioni di argento. Suitable for use in the invention is silver in any form, elemental or not, capable of performing anti-bacterial or antimicrobial functions in general, that is, of killing or weakening pathogenic microorganisms or germs, in particular silver in forms suitable for release silver ions.
Per formare il foglio polimerico sono idonei tutti i tipi di polimeri che si prestano dal punto di vista meccanico, di lavorabilità, di resistenza alla luce ecc. per l’impiego nel rivestimento di mobili, arredamenti e porte. Particolarmente preferiti sono polimeri termoindurenti. Polimeri particolarmente vantaggiosi sono polimeri acrilici, in particolare il PMMA (jDolimetilmetacrilato). To form the polymeric sheet, all types of polymers are suitable which are suitable from a mechanical point of view, workability, light resistance, etc. for use in the coating of furniture, furnishings and doors. Particularly preferred are thermosetting polymers. Particularly advantageous polymers are acrylic polymers, in particular PMMA (jDolimethylmethacrylate).
Pannelli idonei nel senso dell’invenzione sono tutti i pannelli idonei per la realizzazione di arredamenti, mobili e porte, come per esempio pannelli del tipo truciolare, MDF, tamburato o simili. Suitable panels in the sense of the invention are all panels suitable for the construction of furnishings, furniture and doors, such as chipboard, MDF, honeycomb or similar type panels.
In una variante preferita dell’invenzione, l’argento è essenzialmente uniformemente distribuito attraverso il foglio polimerico. In a preferred variant of the invention, the silver is essentially uniformly distributed across the polymeric sheet.
Se l’argento non si trova solo sulla superficie, viene ridotta la possibilità che l’effetto anti-batterico venga ridotto con il tempo dovuto all’usura dello strato superficiale del foglio. Se l’argento è distribuito uniformemente nel foglio, le caratteristiche anti-batteriche rimangono invariate nel tempo, grazie anche alla diffusione di argento verso la superficie del foglio polimerico. Ciò impedisce il diffondersi di microrganismi dannosi e capaci di trasmettere infezioni anche nell'arco di tempo. If the silver is not found only on the surface, the possibility that the anti-bacterial effect is reduced over time due to wear of the surface layer of the sheet is reduced. If the silver is evenly distributed in the sheet, the anti-bacterial characteristics remain unchanged over time, thanks also to the diffusion of silver towards the surface of the polymeric sheet. This prevents the spread of harmful microorganisms capable of transmitting infections even over time.
In una variante preferita dell’invenzione, l’argento viene scelto dal gruppo costituito da argento colloidale, nanoparticelle di argento metallico, particelle di polimeri contenenti argento in forma metallica o ionica, sali di argento, ossidi di argento, fosfati di argento, composti organici contenenti argento, argento su materiali di supporto come ceramiche o zeoliti, coloranti o pigmenti contenenti argento; o miscele di questi. I sali possono essere sia sali difficilmente solubili in acqua, come per esempio solfato di argento, sia sali solubili in acqua, come per esempio nitrato di argento. In a preferred variant of the invention, silver is selected from the group consisting of colloidal silver, metallic silver nanoparticles, particles of silver-containing polymers in metallic or ionic form, silver salts, silver oxides, silver phosphates, organic compounds containing silver, silver on support materials such as ceramics or zeolites, dyes or pigments containing silver; or mixtures of these. The salts can be both salts which are hardly soluble in water, such as for example silver sulphate, and salts which are soluble in water, such as for example silver nitrate.
La quantità dell’argento nel foglio polimerico secondo l’invenzione viene facilmente adattata dall’esperto in base al grado di azione antibatterica che vuole ottenere, in base alle quantità di argento rilasciate dal foglio che possono essere tollerate in termini di contaminazione ambiente o delle persone che vengono a contatto con il foglio polimerico secondo l’invenzione, e anche per garantire che la qualità antibatterica della superficie rimanga possibilmente inalterata nel tempo. The quantity of silver in the polymeric sheet according to the invention is easily adapted by the expert according to the degree of antibacterial action he wants to obtain, based on the quantities of silver released from the sheet that can be tolerated in terms of environmental or human contamination. which come into contact with the polymeric sheet according to the invention, and also to ensure that the antibacterial quality of the surface remains possibly unaltered over time.
Preferibilmente, il foglio polimerico secondo l’invenzione è rivestito su un lato con uno strato polimerico che non contiene argento. In questa maniera, si riesce conferire un rivestimento protettivo meccanicamente stabile al mobile, aH’arredamento o alla porta ottenendo anche un risparmio notevole in termini delle quantità d’argento, oppure anche del polimero utilizzato nello strato antibatterico che solitamente viene scelto fra polimeri più preziosi. Preferably, the polymeric sheet according to the invention is coated on one side with a polymeric layer that does not contain silver. In this way, it is possible to give a mechanically stable protective coating to the furniture, to the furniture or to the door, also obtaining a considerable saving in terms of the quantities of silver, or even of the polymer used in the antibacterial layer which is usually chosen among more precious polymers. .
L’invenzione riguarda inoltre un procedimento per la produzione di un foglio polimerico secondo l’invenzione in cui il foglio polimerico viene ottenuto per estrusione di resine, in particolare di resine acriliche, aggiungendo argento o composti comprendenti argento oppure argento o composti comprendenti argento su materiali di supporto al materiale polimerico da estrudere. L’estrusione con l'aggiunta dell’agente anti-batterico argento è un modo semplice per distribuirlo in modo semplice uniformemente nel polimero. Per la scelta del tipo di argento e del polimero valgono le considerazioni fatte sopra per il foglio polimerico secondo l’invenzione. The invention also relates to a process for the production of a polymeric sheet according to the invention in which the polymeric sheet is obtained by extrusion of resins, in particular of acrylic resins, by adding silver or compounds comprising silver or silver or compounds comprising silver on materials support to the polymeric material to be extruded. Extrusion with the addition of the silver anti-bacterial agent is an easy way to distribute it in a simple way evenly in the polymer. For the choice of the type of silver and the polymer, the considerations made above for the polymeric sheet according to the invention apply.
Vantaggiosamente, l’estrusione avviene come co-estrusione con uno strato polimerico non contenente argento per realizzare in modo poco costoso una variante esecutiva del foglio polimerico, e cioè il foglio polimerico bi-strato come sopra descritto. Advantageously, the extrusion takes place as a co-extrusion with a non-silver-containing polymeric layer to produce in an inexpensive way an executive variant of the polymeric sheet, namely the bi-layer polymeric sheet as described above.
Un altro aspetto dell’invenzione riguarda anche pannelli per la costruzione di mobili, arredamenti o porte ricoperti almeno parzialmente da un foglio polimerico di cui all'invenzione. Another aspect of the invention also relates to panels for the construction of furniture, furnishings or doors covered at least partially by a polymeric sheet of the invention.
Preferibilmente, si rivestono pannelli truciolari o del tipo cosiddetto MDF o tamburato con il foglio polimerico secondo l’invenzione. Il foglio polimerico vantaggiosamente è del tipo acrilico che può assumere anche vari colori per l’aggiunta di coloranti. Preferably, chipboard or so-called MDF or honeycomb panels are coated with the polymeric sheet according to the invention. The polymeric sheet is advantageously of the acrylic type which can also take on various colors for the addition of dyes.
Un ulteriore aspetto dell’invenzione concerne un mobile o una porta che comprende un pannello secondo l’invenzione o che è rivestito almeno parzialmente con un foglio polimerico secondo l’invenzione. Particolarmente vantaggiosi sono i mobili d’arredamento e le porte del settore medico, come per esempio del settore dentistico o ospedaliero, o mobili d’arredamento e porte per luoghi pubblici. A further aspect of the invention concerns a piece of furniture or a door which includes a panel according to the invention or which is at least partially coated with a polymeric sheet according to the invention. Particularly advantageous are furniture and doors in the medical sector, such as in the dental or hospital sector, or furniture and doors for public places.
Varianti esecutive dell’invenzione sono oggetto delle rivendicazioni dipendenti. La descrizione di preferiti esempi di esecuzione dell’invenzione viene data a titolo esemplificativo e non limitativo. Descrizione di alcuni esempi preferiti di esecuzione Executive variants of the invention are the subject of the dependent claims. The description of preferred examples of implementation of the invention is given by way of non-limiting example. Description of some preferred examples of execution
Processi di estrusione, anche con l'aggiunta di additivi, sono noti all’esperto, come anche forme di argento anti-batteriche che possono essere impiegate nella produzione del foglio polimerico additivato con l’agente anti-batterico comprendente argento. Il mercato offre inoltre una vasta gamma di polimeri idonei al rivestimento di arredamenti, porte e/o mobili che sono anche additivabili con diversi additivi. Per motivi di brevità si rinuncia alla descrizione dettagliata di processi d’estrusione, e alla riproduzione di un elenco di polimeri e agenti antibatterici comprendenti argento. Extrusion processes, even with the addition of additives, are known to those skilled in the art, as well as anti-bacterial forms of silver that can be used in the production of the polymeric sheet with the addition of the anti-bacterial agent including silver. The market also offers a wide range of polymers suitable for covering furnishings, doors and / or furniture which can also be mixed with various additives. For reasons of brevity, the detailed description of extrusion processes and the reproduction of a list of polymers and antibacterial agents including silver are waived.
Secondo un esempio di esecuzione dell’invenzione, il foglio polimerico viene generato per estrusione di polimetilmetacrilato (in forma abbreviata PMMA). According to an example of implementation of the invention, the polymeric sheet is generated by extrusion of polymethylmethacrylate (in abbreviated form PMMA).
Il PMMA in forma di granuli e prima del processo di estrusione, viene additivato per esempio con un sale di argento, come ad esempio il solfato di argento, in modo tale che la miscela polimero/sale d’argento venga sottoposta all’estrusione. PMMA in the form of granules and before the extrusion process, is added for example with a silver salt, such as silver sulfate, so that the polymer / silver salt mixture is subjected to extrusion.
Quando la miscela del PMMA e del sale di argento viene fusa e poi inserita nella testa di estrusione di un estrusore per la creazione di fogli laminari, si ottiene un PMMA trasparente, che per la presenza di ioni di argento, ha alte proprietà anti-batteriche. When the mixture of PMMA and silver salt is melted and then inserted into the extrusion head of an extruder for the creation of laminar sheets, a transparent PMMA is obtained, which due to the presence of silver ions, has high anti-bacterial properties. .
Il PMMA contenente l’argento in forma ionica ed è inoltre additivabile con coloranti prima dell’estrusione così che il foglio che si ottiene può essere, oltre che trasparente, anche colorato secondo i diversi colori. In alternativa, al posto della miscela colorante/sale d’argento (oppure altro agente contenente argento) si possono anche usare direttamente coloranti o pigmenti in cui l’argento è già parte integrante del composto chimico stesso che rappresenta il colorante o il pigmento. PMMA containing silver in ionic form and is also additive with dyes before extrusion so that the sheet obtained can be, as well as transparent, also colored according to the different colors. Alternatively, instead of the dye / silver salt mixture (or other agent containing silver), dyes or pigments can also be used directly in which silver is already an integral part of the chemical compound itself that represents the dye or pigment.
Poiché il PMMA è un polimero abbastanza costoso come anche l’argento, nelle costruzioni generalmente si preferisce realizzare un foglio polimerico a doppio strato con un primo strato, ad esempio in ABS (acrilonitrile butadiene stirene), di solito dello spessore di 1 mm, da incollare sul mobile/arredamento e un secondo strato che generalmente non supera 0,4 - 0,5 mm di PMMA comprendente argento. Since PMMA is a fairly expensive polymer as well as silver, in construction it is generally preferred to make a double-layer polymeric sheet with a first layer, for example in ABS (acrylonitrile butadiene styrene), usually 1 mm thick, to be glue on the furniture / furniture and a second layer which generally does not exceed 0.4 - 0.5 mm of PMMA including silver.
L’ABS e il PMMA comprendente argento vengono co-estrusi in modo che il foglio che si ottiene abbia lo strato di PMMA non separabile dallo strato inferiore in ABS. ABS and PMMA including silver are co-extruded so that the resulting sheet has a PMMA layer that cannot be separated from the lower ABS layer.
L’aggiunta dell’agente anti-batterico contente argento come nell’esempio sopra descritto nel polimero PMMA potrà essere effettuata in qualsiasi polimero, preferibilmente di tipo termoindurente, che viene generalmente utilizzato per la produzione di fogli che sono impiegati per la costruzione di mobili. The addition of the anti-bacterial agent containing silver as in the example described above in the PMMA polymer can be carried out in any polymer, preferably of the thermosetting type, which is generally used for the production of sheets that are used for the construction of furniture.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000157A ITVI20130157A1 (en) | 2013-06-21 | 2013-06-21 | POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES |
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| Application Number | Priority Date | Filing Date | Title |
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| IT000157A ITVI20130157A1 (en) | 2013-06-21 | 2013-06-21 | POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES |
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| ITVI20130157A1 true ITVI20130157A1 (en) | 2014-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| IT000157A ITVI20130157A1 (en) | 2013-06-21 | 2013-06-21 | POLYMER SHEET WITH ANTIBACTERIAL PROPERTIES |
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|---|---|---|---|---|
| JPH0957923A (en) * | 1995-08-29 | 1997-03-04 | Toray Ind Inc | Anti-bacterial composite stretched polyester film |
| JP2004284019A (en) * | 2003-03-19 | 2004-10-14 | Dainippon Ink & Chem Inc | Brilliant sheet |
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| JPH0957923A (en) * | 1995-08-29 | 1997-03-04 | Toray Ind Inc | Anti-bacterial composite stretched polyester film |
| JP2004284019A (en) * | 2003-03-19 | 2004-10-14 | Dainippon Ink & Chem Inc | Brilliant sheet |
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