ITMI20010584A1 - PROCEDURE FOR THE REALIZATION OF A MATERIAL IN FOAM ADHESIVE FOAM MATERIAL IN ADHESIVE SHEET REALIZED WITH THIS PROCED - Google Patents
PROCEDURE FOR THE REALIZATION OF A MATERIAL IN FOAM ADHESIVE FOAM MATERIAL IN ADHESIVE SHEET REALIZED WITH THIS PROCED Download PDFInfo
- Publication number
- ITMI20010584A1 ITMI20010584A1 IT2001MI000584A ITMI20010584A ITMI20010584A1 IT MI20010584 A1 ITMI20010584 A1 IT MI20010584A1 IT 2001MI000584 A IT2001MI000584 A IT 2001MI000584A IT MI20010584 A ITMI20010584 A IT MI20010584A IT MI20010584 A1 ITMI20010584 A1 IT MI20010584A1
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- IT
- Italy
- Prior art keywords
- adhesive
- foam
- sheet material
- layer
- rubber
- Prior art date
Links
- 239000000853 adhesive Substances 0.000 title claims description 48
- 230000001070 adhesive effect Effects 0.000 title claims description 45
- 239000000463 material Substances 0.000 title claims description 31
- 239000006260 foam Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 16
- 239000006261 foam material Substances 0.000 title description 2
- 229920001821 foam rubber Polymers 0.000 claims description 9
- 229920000126 latex Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- GIUBHMDTOCBOPA-UHFFFAOYSA-N 3h-1,3-benzothiazole-2-thione;zinc Chemical compound [Zn].C1=CC=C2SC(S)=NC2=C1 GIUBHMDTOCBOPA-UHFFFAOYSA-N 0.000 claims description 4
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910007541 Zn O Inorganic materials 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229940116901 diethyldithiocarbamate Drugs 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- VLJNBZUVERYEMA-UHFFFAOYSA-M sodium;4-amino-4-oxo-2-sulfobutanoate Chemical compound [Na+].NC(=O)CC(C([O-])=O)S(O)(=O)=O VLJNBZUVERYEMA-UHFFFAOYSA-M 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- PGNWIWKMXVDXHP-UHFFFAOYSA-L zinc;1,3-benzothiazole-2-thiolate Chemical compound [Zn+2].C1=CC=C2SC([S-])=NC2=C1.C1=CC=C2SC([S-])=NC2=C1 PGNWIWKMXVDXHP-UHFFFAOYSA-L 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Description
Descrizione dell’invenzione avente per titolo: Description of the invention entitled:
“PROCEDIMENTO PER LA REALIZZAZIONE DI UN MATERIALE IN FOGLIO ADESIVO DI GOMMASCHIUMA, MATERIALE IN FOGLIO ADESIVO REALIZZATO CON QUESTO PROCEDIMENTO E PRODOTTO AUTOADESIVO OTTENUTO CON QUESTO MATERIALE IN FOGLIO” "PROCEDURE FOR MAKING AN ADHESIVE FOAM MATERIAL, ADHESIVE SHEET MATERIAL MADE WITH THIS PROCESS AND SELF-ADHESIVE PRODUCT OBTAINED WITH THIS SHEET MATERIAL"
DESCRIZIONE DESCRIPTION
La presente invenzione concerne un nuovo procedimento per realizzare un materiale in foglio adesivo di gommaschiuma. L’invenzione riguarda anche il materiale in foglio adesivo realizzato con questo procedimento e il prodotto autoadesivo ottenuto con questo materiale in foglio. The present invention relates to a new process for making a foam adhesive sheet material. The invention also relates to the adhesive sheet material made with this process and the self-adhesive product obtained with this sheet material.
Il campo dell’invenzione è quello dei fogli di gommaschiuma che posseggono una superficie adesiva e che vengono normalmente utilizzati come imbottitura nei sottopiedi di calzature, nella pelletteria e simili. Questi fogli, grazie alle loro proprietà autoadesive, ottenibili sia a temperatura ambiente, sia per riscaldamento dello strato di materiale adesivo, hanno il vantaggio di poter essere rapidamente fìssati sul loro supporto. The field of the invention is that of foam sheets which have an adhesive surface and which are normally used as padding in shoe insoles, leather goods and the like. These sheets, thanks to their self-adhesive properties, obtainable both at room temperature and by heating the layer of adhesive material, have the advantage of being able to be quickly fixed on their support.
Tradizionalmente questi fogli di gommaschiuma sono realizzati attraverso delle operazioni distinte che prevedono la preparazione dello strato di gommaschiuma, l’applicazione di un adesivo su un foglio di carta a rilascio o carta siliconata, e l’accoppiamento dello strato di gommaschiuma sul foglio di carta così adesivizzata, solitamente per pressatura. Traditionally, these foam sheets are made through separate operations that involve the preparation of the foam layer, the application of an adhesive on a sheet of release paper or silicone paper, and the coupling of the foam layer on the sheet of paper as well. adhesive, usually by pressing.
Esiste l’esigenza di semplificare le operazioni della tecnica nota anzidetta, così da ottenere un materiale in foglio adesivo con un’unica operazione. I tradizionali metodi del tipo di discussione hanno inoltre lo svantaggio che la pressatura della gommaschiuma sul foglio di carta adesivizzata deve essere controllata, per evitare sia una eccessiva penetrazione dell’adesivo nella gommaschiuma, sia una applicazione non sufficiente dell’adesivo sulla gomma. There is a need to simplify the operations of the aforementioned prior art, so as to obtain an adhesive sheet material with a single operation. The traditional methods of the type of discussion also have the disadvantage that the pressing of the foam rubber on the adhesive paper sheet must be controlled, to avoid both an excessive penetration of the adhesive into the foam rubber and an insufficient application of the adhesive on the rubber.
Costituisce pertanto lo scopo principale dell’invenzione quello di fornire un nuovo procedimento per realizzare un materiale in foglio adesivo, più semplice e rapido di quelli attualmente in uso. Therefore, the main purpose of the invention is to provide a new process for making an adhesive sheet material, simpler and faster than those currently in use.
E’ un altro scopo dell’invenzione quello di fornire un procedimento del tipo anzidetto, meno costoso di quelli tradizionali. Another purpose of the invention is to provide a process of the aforementioned type, less expensive than traditional ones.
E’ un ulteriore scopo dell’invenzione quello di ottenere un materiale in foglio adesivo di gommaschiuma avente le desiderate proprietà adesivizzanti, ovvero una sufficiente aderenza verso l’articolo da rivestire con questo materiale, senza tuttavia perdere l’aderenza sullo strato di gommaschiuma. A further purpose of the invention is to obtain a foam adhesive sheet material having the desired adhesive properties, i.e. a sufficient adhesion to the article to be coated with this material, without however losing adhesion to the foam layer.
Questi ed altri scopi sono raggiunti con il procedimento, il materiale in foglio adesivo e gli articoli autoadesivi delle rivendicazioni rispettivamente 1, 4 e 7. Ulteriori caratteristiche risultano dalle restanti rivendicazioni. These and other objects are achieved with the method, the adhesive sheet material and the self-adhesive articles of claims 1, 4 and 7 respectively. Further characteristics result from the remaining claims.
Rispetto alle note realizzazioni del settore, l’invenzione ha il vantaggio di fornire un procedimento per realizzare, in modo più rapido e semplice, un foglio adesivo di gommaschiuma. Compared to the known embodiments of the sector, the invention has the advantage of providing a process for making, in a more rapid and simple way, an adhesive sheet of foam rubber.
Il materiale in foglio adesivo nell’invenzione ha dal canto suo il vantaggio di presentare le desiderate proprietà adesivizzanti, in particolare una sufficiente aderenza rispetto all’articolo da rivestire con questo materiale, senza tuttavia perdere la necessaria aderenza sullo strato di gommaschiuma. For its part, the adhesive sheet material in the invention has the advantage of presenting the desired adhesive properties, in particular a sufficient adhesion to the article to be coated with this material, without however losing the necessary adhesion on the foam layer.
Queste ed altre caratteristiche, scopi e vantaggi risultano dalla descrizione che segue di un preferito modo di realizzare l’invenzione illustrata, a titolo di esempio, nella figura delle allegate tavole di disegni. In esse: These and other features, purposes and advantages result from the following description of a preferred way of carrying out the invention illustrated, by way of example, in the figure of the attached drawings. In them:
1) la figura 1 illustra in modo schematico le fasi principali del procedimento dell’invenzione; e 1) Figure 1 schematically illustrates the main phases of the process of the invention; And
2) la figura 2 illustra un esempio di realizzazione del materiale in foglio adesivo realizzato con il procedimento di figura 1. 2) Figure 2 illustrates an example of embodiment of the adhesive sheet material made with the method of Figure 1.
Come illustrato in figura 1, la carta a rilascio o siliconata 1 viene alimentata da una bobina 2 nel senso della freccia F. Al di sopra della carta 1, in corrispondenza della sua superfìcie a rilascio, viene spalmata una sostanza adesiva 3 per il tramite di una lama 4. Dopo spalmatura, si ottiene un foglio di carta adesivizzata 5 che viene fatto preventivamente passare in un forno 6 per ottenere la formazione del film adesivo continuo sulla carta 1. As illustrated in Figure 1, the release or silicone paper 1 is fed from a reel 2 in the direction of the arrow F. Above the paper 1, in correspondence with its release surface, an adhesive substance 3 is spread by means of a blade 4. After spreading, a sheet of adhesive paper 5 is obtained which is previously passed through an oven 6 to obtain the formation of the continuous adhesive film on the paper 1.
Successivamente la carta adesivizzata 5 viene spalmata, sul lato 7 che reca l’adesivo 3, con uno spessore di schiuma di lattice di gomma 8, ancora per il tramite di una corrispondente lama 9. Dopo passaggio in un forno 11 di asciugatura e di vulcanizzazione della gomma, viene ottenuto un materiale in foglio adesivo 10 di gommaschiuma, successivamente raffreddato per passaggio su cilindri di raffreddamento 13 e avvolto in rotoli 12. Subsequently, the adhesive paper 5 is spread, on the side 7 bearing the adhesive 3, with a thickness of rubber latex foam 8, again by means of a corresponding blade 9. After passing through a drying and vulcanization oven 11 of the rubber, an adhesive sheet 10 of foam rubber is obtained, subsequently cooled by passing over cooling cylinders 13 and wound into rolls 12.
Come meglio risulta dalla figura 2, il materiale in foglio adesivo 10 è costituito da un foglio di carta siliconata 1 alla quale aderisce, per mezzo di uno strato adesivo 3, uno spessore o strato di gommaschiuma 8. Successivamente, per distacco dal foglio di carta 1, del materiale in foglio adesivo costituito dallo strato di gomma 8 e dall’adesivo 3, si ottiene un materiale in foglio adesivo di gommaschiuma utilizzabile per la preparazione di prodotti per rivestire parti di calzature, articoli di pelletteria e simili. As can be seen better from Figure 2, the adhesive sheet material 10 consists of a sheet of siliconized paper 1 to which a thickness or layer of foam rubber 8 adheres to it by means of an adhesive layer 3. Subsequently, by detachment from the sheet of paper 1, of the adhesive sheet material consisting of the rubber layer 8 and the adhesive 3, an adhesive sheet material of foam rubber is obtained which can be used for the preparation of products for coating parts of footwear, leather goods and the like.
Vantaggiosamente il materiale in foglio adesivo 10 viene preventivamente tranciato secondo le forme volute, così da adattarsi alla sagoma da rivestire. Inoltre l’adesivo 3 impiegato può essere attivo a temperatura ambiente o rinvenibile a caldo. In quest’ultimo caso, se la temperatura di rinvenimento è sufficientemente elevata (per esempio maggiore di 90°C), è possibile recuperare la carta a rilascio 1, preventivamente alla vendita del materiale in foglio adesivo, per il suo utilizzo in successive lavorazioni di spalmatura. Advantageously, the adhesive sheet material 10 is previously cut according to the desired shapes, so as to adapt to the shape to be coated. In addition, the adhesive 3 used can be active at room temperature or heat recoverable. In the latter case, if the tempering temperature is sufficiently high (for example higher than 90 ° C), it is possible to recover the release paper 1, prior to the sale of the adhesive sheet material, for its use in subsequent processing of coating.
Tra i materiali che possono essere utilizzati per la preparazione dello strato di gomma 8, preferibile è quello formato da: Among the materials that can be used for the preparation of the rubber layer 8, the one formed by:
Lattice gomma SBR (secco 67%) 150 parti in peso Sapone (sodio solfosuccinammato) 8-12 SBR rubber latex (dry 67%) 150 parts by weight Soap (sodium sulfosuccinamate) 8-12
Zn O sigillo verde 3-4 Zn O green seal 3-4
Zolfo 2-2,5 Sulfur 2-2.5
ZDEC 1-2 ZDEC 1-2
ZMBT 100-150 ZMBT 100-150
Antiossidanti 0,6-0, 8 Poliacrilato di K 0,5-1, 5 Antioxidants 0.6-0.8 K 0.5-1.5 polyacrylate
Pigmento 2-10 Pigment 2-10
dove ZDEC: N-dietilditiocarbammato di Zinco e ZMBT: Zinco mercaptobenzotiazolo. where ZDEC: Zinc N-diethyldithiocarbamate and ZMBT: Zinc mercaptobenzothiazole.
La mescola così preparata (viscosità Brookfield: 1000 - 1300 mPa.s) viene schiumata meccanicamente, fino ad ottenere una densità di 250-300 gr/litro. The mixture thus prepared (Brookfield viscosity: 1000 - 1300 mPa.s) is mechanically foamed, until a density of 250-300 gr / liter is obtained.
Sebbene una formulazione specifica di lattice sia stata riportata neH’esempio precedente (formulazione di schiuma “nogel”) è possibile utilizzare anche altre formulazioni (sistema “gel” con sodio fluosilicato o con acetato di ammonio) e/o altri lattici di gomma (lattice di gomma naturale da solo o in tagli con lattice SBR), o resine acriliche, viniliche, poliuretaniche, acrilonitriliche, prese singolarmente o in miscela tra di loro. Although a specific latex formulation was reported in the previous example ("nogel" foam formulation) it is also possible to use other formulations ("gel" system with sodium fluosilicate or with ammonium acetate) and / or other rubber latexes (latex of natural rubber alone or in cuts with SBR latex), or acrylic, vinyl, polyurethane, acrylonitrile resins, taken individually or mixed together.
Tra le composizioni adesive utilizzabili neH’invenzione, preferite sono le resine acriliche, viniliche, etilenvinilacetato (ÈVA), poliuretaniche o altre resine termoplastiche prese singolarmente o in miscela, in dispersione acquosa, o soluzione, o sotto forma di hot-melt. Per quest’ultimo caso, il forno 6 di essiccamento della resina adesiva può essere omesso come pure nel caso di utilizzo di adesivi a temperatura ambiente. Among the adhesive compositions that can be used in the invention, the preferred are acrylic, vinyl, ethylene vinyl acetate (EVA), polyurethane or other thermoplastic resins taken individually or in a mixture, in aqueous dispersion, or solution, or in the form of hot-melt. For the latter case, the drying oven 6 of the adhesive resin can be omitted as well as in the case of using adhesives at room temperature.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2001MI000584A ITMI20010584A1 (en) | 2001-03-20 | 2001-03-20 | PROCEDURE FOR THE REALIZATION OF A MATERIAL IN FOAM ADHESIVE FOAM MATERIAL IN ADHESIVE SHEET REALIZED WITH THIS PROCED |
| ES200200654A ES2192483B1 (en) | 2001-03-20 | 2002-03-20 | PROCEDURE FOR THE REALIZATION OF AN ADHESIVE LAMINAR MATERIAL OF SPONGE GUM, MATERIAL IN THE FORM OF ADHESIVE SHEET MADE WITH THE PROCEDURE AND SELF-ADHESIVE PRODUCT OBTAINED WITH SUCH LAMINARY MATERIAL. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2001MI000584A ITMI20010584A1 (en) | 2001-03-20 | 2001-03-20 | PROCEDURE FOR THE REALIZATION OF A MATERIAL IN FOAM ADHESIVE FOAM MATERIAL IN ADHESIVE SHEET REALIZED WITH THIS PROCED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ITMI20010584A0 ITMI20010584A0 (en) | 2001-03-20 |
| ITMI20010584A1 true ITMI20010584A1 (en) | 2002-09-20 |
Family
ID=11447314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2001MI000584A ITMI20010584A1 (en) | 2001-03-20 | 2001-03-20 | PROCEDURE FOR THE REALIZATION OF A MATERIAL IN FOAM ADHESIVE FOAM MATERIAL IN ADHESIVE SHEET REALIZED WITH THIS PROCED |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2192483B1 (en) |
| IT (1) | ITMI20010584A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1025506Y (en) * | 1993-08-11 | 1994-07-16 | Garcia Jose Luis Martin | NON-STICK LAMINAR BASE WITH THERMOADHESIVE APPLIQUE, FOR USE IN CLOTHING AND SIMILAR |
| ES2159223B1 (en) * | 1998-10-30 | 2002-04-16 | Cauchos Karey S A | PROCEDURE FOR OBTAINING A SHEET IN THE ROLL OF ETHYLENVINYL ACETATE (EVA) FOR APPLICATION TO THE FOOTWEAR INDUSTRY. |
| IT1317959B1 (en) * | 2000-05-31 | 2003-07-21 | Fiscagomma S P A | PROCEDURE FOR THE PRODUCTION OF A TWO-LAYER SHEET MATERIAL, IN PARTICULAR FOR FOOTWEAR INSOLES, SHEET MATERIAL |
-
2001
- 2001-03-20 IT IT2001MI000584A patent/ITMI20010584A1/en unknown
-
2002
- 2002-03-20 ES ES200200654A patent/ES2192483B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2192483B1 (en) | 2004-08-01 |
| ITMI20010584A0 (en) | 2001-03-20 |
| ES2192483A1 (en) | 2003-10-01 |
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