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1. (WO2017037617) METHOD FOR THE PRODUCTION OF AN ELASTIC LAMINATE AND LAMINATED ELASTIC PRODUCT
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Pub. No.: WO/2017/037617 International Application No.: PCT/IB2016/055167
Publication Date: 09.03.2017 International Filing Date: 30.08.2016
IPC:
B32B 37/08 (2006.01) ,B29C 65/18 (2006.01) ,B29C 47/88 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
37
Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
08
characterised by the cooling method
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
02
by heating, with or without pressure
18
using heated tool
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
08
Component parts, details or accessories; Auxiliary operations
78
Heating or cooling the material to be extruded or the stream of extruded material
88
Heating or cooling the stream of extruded material
Applicants:
PANTEX INTERNATIONAL S.P.A. [IT/IT]; Via Strada Statele, 17 Zona Ind.le 67039 Sulmona (AQ), IT
Inventors:
ANGELI, Pietro; IT
CAIRA, Antonio; IT
DI BENEDETTO, Carmine; IT
FORNONI, Gianluigi; IT
Agent:
MANNUCCI, Michele; IT
VIANELLO, Alberto; IT
Priority Data:
UB2015A00333301.09.2015IT
Title (EN) METHOD FOR THE PRODUCTION OF AN ELASTIC LAMINATE AND LAMINATED ELASTIC PRODUCT
(FR) PROCÉDÉ POUR LA PRODUCTION D'UN STRATIFIÉ ÉLASTIQUE ET PRODUIT ÉLASTIQUE STRATIFIÉ
Abstract:
(EN) A method for the production of an elastic laminate, comprising the following steps in a same production line: to coextrude a first web of elastic film (F) with at least three layers (F1, F2, F1), comprising at least two different polymer materials, to feed contemporaneously said coextruded first elastic film (F) web and two second nonwoven webs (T1, T2) to a thermal, binding calender (14), wherein the first elastic film web is arranged between said two second nonwoven webs when entering the calender; wherein said first elastic film web, during the movement from the coextrusion step to the thermal binding step, passes from a melted state, in the coextrusion step, to a solidified and cold state when entering the calender, to join, through spot welding in said calender, said second nonwoven webs with respective opposite outer layers of said first elastic film web, thus producing an intermediate web (P1), to stretch mechanically said intermediate web according to a direction transverse to the same web.
(FR) L'invention concerne un procédé pour la production d'un stratifié élastique, lequel procédé comprend les étapes suivantes, dans une même ligne de production : la coextrusion d'une première bande de film élastique (F) avec au moins trois couches (F1, F2, F1), comprenant au moins deux matériaux polymères différents, pour introduire simultanément ladite première bande de film élastique coextrudée (F) et deux secondes bandes non-tissées (T1, T2) dans une calandre de liaison thermique (14), la première bande de film élastique étant disposée entre lesdites deux secondes bandes non-tissées lors de l'entrée dans la calandre ; ladite première bande de film élastique, pendant le mouvement à partir de l'étape de coextrusion jusqu'à l'étape de liaison thermique, passant d'un état fondu, dans l'étape de coextrusion, à un état solidifié et froid lors de l'entrée dans la calandre, pour réunir, par un soudage par points dans ladite calandre, lesdites secondes bandes non tissées avec des couches externes opposées respectives de ladite première bande de film élastique, de façon à produire ainsi une bande intermédiaire (P1), de façon à étirer mécaniquement ladite bande intermédiaire selon une direction transversale à cette même bande.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)