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Machine translation
1. (WO1998028131) PLASTIC BASED MULTILAYER STRUCTURE AND TUBE WITH MULTILAYER STRUCTURE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1998/028131    International Application No.:    PCT/EP1997/006891
Publication Date: 02.07.1998 International Filing Date: 09.12.1997
Chapter 2 Demand Filed:    03.07.1998    
IPC:
B32B 27/30 (2006.01), B60K 15/01 (2006.01), F02M 37/00 (2006.01), F16L 9/12 (2006.01), F16L 11/04 (2006.01)
Applicants: NYLTECH ITALIA [IT/IT]; Via 1° Maggio, 80, I-20020 Ceriano Laghetto (IT) (For All Designated States Except US).
PEDUTO, Nicolangelo [IT/IT]; (IT) (For US Only)
Inventors: PEDUTO, Nicolangelo; (IT)
Agent: ESSON, Jean-Pierre; Rhodia Services, Direction de la Propriété Industrielle, Crit-Carrières, Boîte postale 62, F-69192 Saint-Fons Cedex (FR)
Priority Data:
96/16074 20.12.1996 FR
Title (EN) PLASTIC BASED MULTILAYER STRUCTURE AND TUBE WITH MULTILAYER STRUCTURE
(FR) STRUCTURE MULTICOUCHE A BASE DE PLASTIQUE ET TUBE A STRUCTURE MULTICOUCHE
Abstract: front page image
(EN)The invention concerns a plastic based multilayer structure, in particular for making tubes or conduits for transporting liquid fluids such as alcohol, liquid fuels derived from petrol, fuels containing oxygenic compounds such as, for instance alcohol. More particularly it concerns a multilayer structure with improved barrier properties, in particular with respect to the fluids mentioned above. Said structure comprises an external layer (A) formed from a polyamide based composition with and an internal adjacent layer (B) formed from a polyfluorovinylidene based composition. The adherence between these two layers is obtained either by adding a polyacrylate compound commercialised under the registered trade mark RESEDA in the polymer forming the layer (B) or by forming an intermediate layer between the adjacent layers (A) and (B) from a composition containing said RESEDA compound.
(FR)La présente invention concerne une structure multicouche à base de plastique, notamment convenable pour la fabrication de tubes ou conduits destinés à transporter des fluides liquides comme des alcools, des carburants liquides provenant du pétrole, des carburants pouvant contenir des composés oxygénés tels que, par exemple, des alcools. Elle concerne plus particulièrement une structure multicouche présentant des propriétés barrières améliorées, notamment vis-à-vis des fluides indiqués ci-dessus. Cette structure comprend une couche externe (A) formée à partir d'une composition à base d'un polyamide et une couche interne (B) adjacente formée à partir d'une composition à base de polyfluorovinylidène. L'adhérence entre ces deux couches est obtenue soit par addition d'un composé polyacrylate commercialisé sous le nom commercial RESEDA dans le polymère formant la couche (B) soit par formation d'une couche intermédiaire entre les couches adjacentes (A et B) à partir d'une composition comprenant ledit composé RESEDA.
Designated States: AL, AU, BB, BG, BR, CA, CN, CZ, EE, GE, HU, IL, IS, JP, KP, KR, LC, LK, LR, LT, LV, MG, MK, MN, MX, NO, NZ, PL, RO, SG, SI, SK, TR, TT, UA, US, UZ, VN, YU.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)