ITMI20100916A1 - SUITCASE WITH INJECTION BOOM. - Google Patents

SUITCASE WITH INJECTION BOOM. Download PDF

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Publication number
ITMI20100916A1
ITMI20100916A1 IT000916A ITMI20100916A ITMI20100916A1 IT MI20100916 A1 ITMI20100916 A1 IT MI20100916A1 IT 000916 A IT000916 A IT 000916A IT MI20100916 A ITMI20100916 A IT MI20100916A IT MI20100916 A1 ITMI20100916 A1 IT MI20100916A1
Authority
IT
Italy
Prior art keywords
suitcase
thickness
channels
portions
bodywork
Prior art date
Application number
IT000916A
Other languages
Italian (it)
Inventor
Enrico Roncato
Original Assignee
Valigeria Roncato Spa
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 Valigeria Roncato Spa filed Critical Valigeria Roncato Spa
Priority to ITMI2010A000916A priority Critical patent/IT1400111B1/en
Priority to ES11166857.0T priority patent/ES2476280T3/en
Priority to EP20110166857 priority patent/EP2387906B1/en
Publication of ITMI20100916A1 publication Critical patent/ITMI20100916A1/en
Application granted granted Critical
Publication of IT1400111B1 publication Critical patent/IT1400111B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/02—Materials therefor
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/03—Suitcases
    • A45C2005/037—Suitcases with a hard shell, i.e. rigid shell as volume creating element
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/14—Rigid or semi-rigid luggage with built-in rolling means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

“Valigia con ragnatela d’iniezione” "Suitcase with injection spider web"

La presente invenzione concerne una valigia con ragnatela d’iniezione. The present invention relates to a suitcase with injection spider web.

E’ noto l’uso di tecniche di stampaggio ad iniezione per la realizzazione di valige in polipropilene che prevedono un punto di iniezione da cui fluisce il fluido plastico. The use of injection molding techniques is known for the production of polypropylene cases that provide an injection point from which the plastic fluid flows.

Detta tecnica presenta l’inconveniente di dover prevedere uno spessore della scocca non inferiore ai 2 mm per garantire che il fluido plastico riempia completamente lo stampo. This technique has the drawback of having to provide a body thickness of not less than 2 mm to ensure that the plastic fluid completely fills the mold.

Per limitare il percorso del fluido caldo si è pensato di prevedere il punto di iniezione al centro della scocca. Rimane comunque un limite di 2mm di scocca sotto il quale lo stampaggio ad iniezione non è efficace. Questo comporta un limite per il tonnellaggio della pressa e del peso complessivo della valigia. To limit the path of the hot fluid, it was decided to provide the injection point in the center of the body. However, there remains a limit of 2mm of body below which injection molding is not effective. This implies a limit for the tonnage of the press and the total weight of the suitcase.

Scopo della presente invenzione è quello di realizzare una valigia con ima scocca alleggerita con uno spessore inferiore ai 2mm che non pregiudichi la qualità dello stampaggio ad iniezione. The purpose of the present invention is to produce a suitcase with a lightened body with a thickness of less than 2mm which does not compromise the quality of the injection molding.

Ulteriore scopo è quello di utilizzare una pressa con forza di chiusura non superiore alle 1300 tonnellate. A further purpose is to use a press with a closing force not exceeding 1300 tons.

In accordo con l’invenzione tale scopo è raggiunto con una valigia in materiale plastico comprendente una coppia di scocche tra loro incernierate, caratterizzata dal fatto che ciascuna scocca comprende una ragnatela costituita da canali di stampaggio ad iniezione di spessore maggiore delle porzioni della scocca comprese tra detti canali. In accordance with the invention, this object is achieved with a plastic suitcase comprising a pair of bodies hinged together, characterized in that each body comprises a spider web consisting of injection molding channels of greater thickness than the portions of the body comprised between said channels.

Queste ed altre caratteristiche della presente invenzione saranno rese maggiormente evidenti dalla seguente descrizione dettagliata di un suo esempio di realizzazione pratica illustrato a titolo non limitativo nei disegni allegati, in cui: These and other characteristics of the present invention will be made clearer by the following detailed description of an example of its practical embodiment illustrated by way of non-limiting purposes in the attached drawings, in which:

la figura 1 mostra una vista frontale della valigia; figure 1 shows a front view of the suitcase;

la figura 2 mostra una vista posteriore della valigia; figure 2 shows a rear view of the suitcase;

la figura 3 mostra una prima vista laterale della valigia; figure 3 shows a first side view of the suitcase;

la figura 4 mostra una seconda vista laterale della valigia; figure 4 shows a second side view of the suitcase;

la figura 5 mostra una vista in pianta dall’alto della valigia; Figure 5 shows a top plan view of the suitcase;

la figura 6 mostra una vista in sezione secondo la linea VI- VI di figura 1, con un particolare compreso in un tondo A ingrandito. Figure 6 shows a sectional view along the line VI-VI of Figure 1, with a detail included in an enlarged round piece A.

Una valigia 100 in materiale plastico, preferibilmente in polipropilene ma anche in policarbonato o simile, presenta una scocca o guscio frontale 1 accoppiata ad una scocca o guscio posteriore 2 mediante una cerniera 3, una maniglia laterale 4 con linguetta di chiusura 5, una maniglia superiore 6 a scorrimento in guide 7, linguette di chiusura supplementari 8 lungo i bordi di congiunzione delle due scocche 1, 2, oltre a ruote inferiori piroettanti 20. E’ prevista inoltre una ulteriore maniglia superiore 66. A suitcase 100 in plastic material, preferably in polypropylene but also in polycarbonate or the like, has a front body or shell 1 coupled to a rear body or shell 2 by means of a hinge 3, a side handle 4 with closing tab 5, an upper handle 6 sliding in guides 7, additional closing tabs 8 along the joining edges of the two bodies 1, 2, as well as lower swiveling wheels 20. A further upper handle 66 is also provided.

Sulla scocca frontale 1 (figura 1) è visibile una ragnatela 10 costituita da canali di stampaggio 11 atti a permettere il fluire del fluido plastico in fase di stampaggio da un punto di iniezione centrale 12 verso la periferia della scocca 1. Di detta ragnatela 10 è possibile distinguere dei nodi periferici o slarghi 13 in cui confluiscono più canali 11 per facilitare la corretta formatura delle zone della scocca 2 più lontane dal centro 12 e quindi più difficili da raggiungere. On the front body 1 (figure 1) a spider web 10 is visible consisting of molding channels 11 suitable for allowing the flow of the plastic fluid during the molding phase from a central injection point 12 towards the periphery of the body 1. Of said web 10 is It is possible to distinguish peripheral nodes or openings 13 into which more channels 11 converge to facilitate the correct shaping of the areas of the body 2 which are farthest from the center 12 and therefore more difficult to reach.

La scocca posteriore 2 (figura 2) presenta una ragnatela 10 con un disegno simile ma diverso per poter ospitare le guide 7 di scorrimento della maniglia superiore, pur presentando anch’essa nodi periferici 13 ed un punto centrale di iniezione 12 sottostante le guide 7 e quindi non visibile dal’estemo, ma visibile dall’interno (in modo che i canali non vengano mai interrotti). The rear body 2 (figure 2) has a spider web 10 with a similar but different design in order to accommodate the sliding guides 7 of the upper handle, while also presenting peripheral nodes 13 and a central injection point 12 under the guides 7 and therefore not visible from the outside, but visible from the inside (so that the channels are never interrupted).

Entrambe le scocche 1, 2 presentano inoltre nodi interni 14 utili a mantenere la viscosità del fluido ed a distribuirlo in maniera capillare in tutto lo stampo delle scocche. Both the bodies 1, 2 also have internal nodes 14 useful for maintaining the viscosity of the fluid and for distributing it in a capillary manner throughout the mold of the bodies.

I canali 11 della ragnatela 10 hanno uno spessore di circa 2,5 mm, la rimanente porzione 50 di scocca 1, 2 avendo uno spessore di circa 1,2 mm ben inferiore al valore minimo di 2 mm riscontrato nelle valige presenti sul mercato (si veda il tondo A ingrandito di figura 6). Anche le porzioni periferiche 21 e 22 delle scocche 1, 2 pur dovendo essere leggermente più spesse per soddisfare esigenze di rigidezza più severe, hanno uno spessore di 1,6 mm comunque decisamente più basso di 2 mm. In generale lo spessore dei canali è compreso tra 2 e 2,5 mm e lo spessore delle porzioni 50 comprese tra i canali è minore di 1,8 mm. The channels 11 of the spider web 10 have a thickness of about 2.5 mm, the remaining portion 50 of the body 1, 2 having a thickness of about 1.2 mm, well below the minimum value of 2 mm found in the suitcases available on the market (yes see the enlarged round A in figure 6). Even the peripheral portions 21 and 22 of the bodies 1, 2, although having to be slightly thicker to satisfy more severe rigidity requirements, have a thickness of 1.6 mm in any case significantly lower than 2 mm. In general, the thickness of the channels is between 2 and 2.5 mm and the thickness of the portions 50 comprised between the channels is less than 1.8 mm.

Osservando con attenzione il tondo A ingrandito, si nota che i canali 11 protrudono sia verso l’interno (prevalentemente) che verso l’esterno. Le porzioni di scocca 1 , 2 comprese tra i canali 11 vengono così raggiunte dal fluido plastico iniettato con efficienza essendo circondate da detta ragnatela 10. By carefully observing the enlarged round A, it is noted that the channels 11 protrude both inwards (mainly) and outwards. The body portions 1, 2 comprised between the channels 11 are thus efficiently reached by the injected plastic fluid being surrounded by said spider web 10.

Vantaggiosamente si è verificato, a parità di tipo di valigia e di litri di portata, un vantaggio di peso maggiore del 30%; per esempio una valigia da circa 100 litri ottenuta con stampaggio ad iniezione senza ragnatela pesa circa 6 kg; lo stesso tipo di valigia ottenuta con stampaggio ad iniezione con ragnatela pesa circa 4 kg. Advantageously, with the same type of suitcase and capacity liters being equal, a weight advantage greater than 30% has occurred; for example a suitcase of about 100 liters obtained by injection molding without spider web weighs about 6 kg; the same type of suitcase obtained by injection molding with spider web weighs about 4 kg.

Vantaggiosamente è possibile utilizzare presse con tonnellaggio ben inferiore alle 1300 tonnellate perché lo “sforzo” del fluido per raggiungere tutti i punti dello stampo è inferiore grazie ai canali 11 che canalizzano efficacemente il fluido plastico. Advantageously, it is possible to use presses with a tonnage well below 1300 tons because the "effort" of the fluid to reach all points of the mold is lower thanks to the channels 11 which effectively channel the plastic fluid.

Claims (9)

RIVENDICAZIONI 1. Valigia (100) in materiale plastico comprendente una coppia di scocche (1, 2) tra loro incernierate, caratterizzata dal fatto che ciascuna scocca (1, 2) comprende una ragnatela (10) costituita da canali di stampaggio ad iniezione (11) di spessore maggiore delle porzioni (50) della scocca (1, 2) comprese tra detti canali (11). 2. Valigia (100) secondo la rivendicazione 1, caratterizzata dal fatto che detti canali (11) protrudono verso l’interno e verso l’esterno rispetto alle porzioni (50) della scocca (1, 2) comprese tra detti canali (11). 3. Valigia (100) secondo la rivendicazione 2, caratterizzata dal fatto che i canali (11) protrudono maggiormente verso l’interno che verso l’esterno. 4. Valigia (100) secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che i canali (11) hanno uno spessore almeno doppio rispetto alle rimanenti porzioni (50) della scocca (1, 2). 5. Valigia (100) secondo la rivendicazione 4, caratterizzata dal fatto che i canali (11) hanno uno spessore compreso tra 2 e 2,5 mm, e le rimanenti porzioni (50) della scocca (1, 2) hanno uno spessore minore di 2 mm. 6. Valigia (100) secondo la rivendicazione 5, caratterizzata dal fatto che le porzioni centrali (50) della scocca (1, 2) hanno uno spessore minore di 1,5 mm, le porzioni laterali (50) della scocca (1, 2) hanno uno spessore minore di 1,8 mm. 7. Valigia (100) secondo la rivendicazione 6, caratterizzata dal fatto che le porzioni centrali (50) della scocca (1, 2) hanno uno spessore di circa 1,2 mm, le porzioni laterali (50) della scocca (1, 2) hanno uno spessore di circa 1,6 mm. 8. Valigia (100) secondo una qualsiasi delle rivendicazioni precedenti, caratterizzata dal fatto che detta ragnatela (10) prevede nodi interni (14) e nodi periferici (13). 9. Procedimento di stampaggio ad iniezione a caldo di scocche (1, 2) di valige (100) in materiale plastico, caratterizzato dal fatto di prevedere l’iniezione centrale del fluido plastico atto a raggiungere la periferia della scocca (1, 2) tramite canali di iniezione (11) compresi in dette scocche (1, 2) di spessore maggiore dello spessore delle rimanenti porzioni (50) della scocca (1, 2). RIVENDICAZIONI 1. Suitcase (100) made of plastic material comprising a couple of bodyworks (1, 2) hinged between them, characterized in that each bodywork (1, 2) comprises a web (10) consisting of injection mould channels (11) of higher thickness in respect of the portions (50) of the bodywork (1, 2) comprised between said channels (11). CLAIMS 1. Plastic suitcase (100) comprising a pair of bodies (1, 2) hinged together, characterized in that each body (1, 2) comprises a spider web (10) consisting of injection molding channels (11) thicker than the portions (50) of the body (1, 2) comprised between said channels (11). Suitcase (100) according to claim 1, characterized in that said channels (11) protrude inwards and outwards with respect to the portions (50) of the body (1, 2) comprised between said channels (11) . 3. Suitcase (100) according to claim 2, characterized by the fact that the channels (11) protrude more towards the inside than towards the outside. Suitcase (100) according to any one of the preceding claims, characterized in that the channels (11) have a thickness at least double with respect to the remaining portions (50) of the body (1, 2). 5. Suitcase (100) according to claim 4, characterized in that the channels (11) have a thickness between 2 and 2.5 mm, and the remaining portions (50) of the body (1, 2) have a lower thickness of 2 mm. Suitcase (100) according to claim 5, characterized in that the central portions (50) of the body (1, 2) have a thickness of less than 1.5 mm, the side portions (50) of the body (1, 2 ) have a thickness of less than 1.8 mm. Suitcase (100) according to claim 6, characterized in that the central portions (50) of the body (1, 2) have a thickness of about 1.2 mm, the side portions (50) of the body (1, 2 ) have a thickness of about 1.6 mm. Suitcase (100) according to any one of the preceding claims, characterized in that said spider web (10) has internal nodes (14) and peripheral nodes (13). 9. Process of hot injection molding of bodies (1, 2) of suitcases (100) in plastic material, characterized by the fact of providing for the central injection of the plastic fluid able to reach the periphery of the body (1, 2) through injection channels (11) included in said bodies (1, 2) having a thickness greater than the thickness of the remaining portions (50) of the body (1, 2). CLAIMS 1. Suitcase (100) made of plastic material comprising a couple of bodyworks (1, 2) hinged between them, characterized in that each bodywork (1, 2) comprises a web (10) consisting of injection mold channels (11) of higher thickness in respect of the portions (50) of the bodywork (1, 2) comprised between said channels (11). 2. Suitcase (100) according to claim 1, characterized in that said channels (11) protrude inward and outward in respect to the portions (50) of the bodywork (1, 2) comprised between said channels (11). 2. Suitcase (100) according to claim 1, characterized in that said channels (11) protrude inward and outward in respect to the portions (50) of the bodywork (1, 2) comprised between said channels (11). 3. Suitcase (100) according to claim 2, characterized in that the channels (11) protrude even more inward than outward. 3. Suitcase (100) according to claim 2, characterized in that the channels (11) protrude even more inward than outward. 4. Suitcase (100) according to any one of the precedeing claims, characterized in that the channels (11) have a thickness at least twice that of the remaining portions (50) of the bodywork (1, 2). 4. Suitcase (100) according to any one of the preceding claims, characterized in that the channels (11) have a thickness at least twice that of the remaining portions (50) of the bodywork (1, 2). 5. Suitcase (100) according to claim 4, characterized in that the channels (11) have a thickness comprised between 2 and 2,5 mm, and the remaining portions (50) of the bodywork (1, 2) have a thickness less than 2 mm. 5. Suitcase (100) according to claim 4, characterized in that the channels (11) have a thickness comprised between 2 and 2,5 mm, and the remaining portions (50) of the bodywork (1, 2) have a thickness less than 2 mm. 6. Suitcase (100) according to claim 5, characterized in that the central portions (50) of the bodywork (1,2) have a thickness less than 1,5 mm, the lateral portions (50) of the bodywork (1, 2) have a thickness less than 1,8 mm. 6. Suitcase (100) according to claim 5, characterized in that the central portions (50) of the bodywork (1,2) have a thickness less than 1,5 mm, the lateral portions (50) of the bodywork (1, 2) have a thickness less than 1.8 mm. 7. Suitcase (100) according to claim 6, characterized in that the central portions (50) of the bodywork (1, 2) have a thickness of about 1,2 mm, the lateral portions (50) of the bodywork (1, 2) have a thickness of about 1,6 mm. 7. Suitcase (100) according to claim 6, characterized in that the central portions (50) of the bodywork (1, 2) have a thickness of about 1,2 mm, the lateral portions (50) of the bodywork (1, 2) have a thickness of about 1.6 mm. 8. Suitcase (100) according to any one of the preceding claims, characterized in that said web (10) provides internal knots (14) and peripheric knots (13). 8. Suitcase (100) according to any one of the preceding claims, characterized in that said web (10) provides internal knots (14) and peripheric knots (13). 9. Hot injection molding process for bodyworks (1, 2) for suitcases (100) made of plastic material, characterized in that it provides the central injection of the plastic fluid suitable to reach the periphery of the bodywork (1, 2) by means of injection channels (11) comprised in said bodyworks (1, 2) with a higher thickness than the thickness of the remaining portions (50) of the bodywork (1, 2).9. Hot injection molding process for bodyworks (1, 2) for suitcases (100) made of plastic material, characterized in that it provides the central injection of the plastic fluid suitable to reach the periphery of the bodywork (1, 2) by means of injection channels (11) comprised in said bodyworks (1, 2) with a higher thickness than the thickness of the remaining portions (50) of the bodywork (1, 2).
ITMI2010A000916A 2010-05-21 2010-05-21 SUITCASE WITH INJECTION BOOM. IT1400111B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI2010A000916A IT1400111B1 (en) 2010-05-21 2010-05-21 SUITCASE WITH INJECTION BOOM.
ES11166857.0T ES2476280T3 (en) 2010-05-21 2011-05-20 Suitcase with an injection molding net
EP20110166857 EP2387906B1 (en) 2010-05-21 2011-05-20 Suitcase with injection mould web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A000916A IT1400111B1 (en) 2010-05-21 2010-05-21 SUITCASE WITH INJECTION BOOM.

Publications (2)

Publication Number Publication Date
ITMI20100916A1 true ITMI20100916A1 (en) 2011-11-22
IT1400111B1 IT1400111B1 (en) 2013-05-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI2010A000916A IT1400111B1 (en) 2010-05-21 2010-05-21 SUITCASE WITH INJECTION BOOM.

Country Status (3)

Country Link
EP (1) EP2387906B1 (en)
ES (1) ES2476280T3 (en)
IT (1) IT1400111B1 (en)

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ITRM20130431A1 (en) * 2013-07-19 2015-01-20 Kuvera S P A SUITCASE OF PLASTIC MATERIAL
IL245768A0 (en) * 2016-05-22 2016-08-31 Travel Smart Ltd A method and system for molding a panel member, and a molded panel member
GB201602472D0 (en) * 2016-02-11 2016-03-30 Keter Holdings Ltd Injection molded cases and method of their manufacture
AU201717615S (en) 2017-06-12 2018-01-15 Yeti Coolers Container
US11203465B2 (en) 2017-06-12 2021-12-21 Yeti Coolers, Llc Container and latching system
US11976498B2 (en) 2017-06-12 2024-05-07 Yeti Coolers, Llc Container and latching system
US11685573B2 (en) 2017-06-12 2023-06-27 Yeti Coolers, Llc Carry strap for container
USD907445S1 (en) 2018-12-11 2021-01-12 Yeti Coolers, Llc Container accessories
USD904829S1 (en) 2018-12-11 2020-12-15 Yeti Coolers, Llc Container accessories
JP7303313B2 (en) 2019-01-06 2023-07-04 イエティ クーラーズ エルエルシー luggage system
GB2583380A (en) * 2019-04-26 2020-10-28 It Luggage Ltd Suitcase
USD961926S1 (en) 2020-06-30 2022-08-30 Yeti Coolers, Llc Luggage
USD954436S1 (en) 2020-06-30 2022-06-14 Yeti Coolers, Llc Luggage
USD963344S1 (en) 2020-06-30 2022-09-13 Yeti Coolers, Llc Luggage
USD951643S1 (en) 2020-06-30 2022-05-17 Yeti Coolers, Llc Luggage
USD994438S1 (en) 2020-12-16 2023-08-08 Yeti Coolers, Llc Container
USD960648S1 (en) 2020-12-16 2022-08-16 Yeti Coolers, Llc Container accessory
USD985937S1 (en) 2020-12-16 2023-05-16 Yeti Coolers, Llc Container
WO2022198247A1 (en) 2021-03-24 2022-09-29 Kogelnik Holding Gmbh Container, especially suitcase, comprising at least one half-shell component or shell

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US4459257A (en) * 1982-07-05 1984-07-10 Cibie Projecteurs Process for producing a shaped article by injection moulding
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WO2001085566A1 (en) * 2000-05-09 2001-11-15 Juan Carlos Blanco Aceves Prioritized first aid kit
JP2006219515A (en) * 2005-02-08 2006-08-24 Teijin Chem Ltd Polycarbonate resin composition, sheet composed of the resin composition, and thermoformed article composed of the sheet

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Publication number Priority date Publication date Assignee Title
US2924550A (en) * 1956-06-25 1960-02-09 Friedman Alex Method of molding resin and fiber compositions
US4459257A (en) * 1982-07-05 1984-07-10 Cibie Projecteurs Process for producing a shaped article by injection moulding
US4613040A (en) * 1984-04-04 1986-09-23 Pente Games, Inc. Folding case
WO2001085566A1 (en) * 2000-05-09 2001-11-15 Juan Carlos Blanco Aceves Prioritized first aid kit
JP2006219515A (en) * 2005-02-08 2006-08-24 Teijin Chem Ltd Polycarbonate resin composition, sheet composed of the resin composition, and thermoformed article composed of the sheet

Also Published As

Publication number Publication date
ES2476280T3 (en) 2014-07-14
EP2387906B1 (en) 2014-04-23
EP2387906A1 (en) 2011-11-23
IT1400111B1 (en) 2013-05-17

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