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1. (WO2006082595) LIGHTWEIGHT STRUCTURAL COMPOSITE FOR LOAD BEARING APPLICATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/082595    International Application No.:    PCT/IN2005/000212
Publication Date: 10.08.2006 International Filing Date: 23.06.2005
IPC:
B32B 3/22 (2006.01), B32B 27/06 (2006.01), E04C 2/36 (2006.01)
Applicants: DEFENCE RESEARCH & DEVELOPMENT ORGANISATION [IN/IN]; Ministry of Defence, Government of India, West Block-VIII, Wing-1, Sec-1, R.K. Puram, New Delhi 110 066 (IN) (For All Designated States Except US).
CHAKRABORTY, Bikash, Chandra [IN/IN]; (IN) (For US Only).
RAJAGOPALAN, Manoj, Nalanda [IN/IN]; (IN) (For US Only).
SRINIVASAN, Senthil, Kumar, Kandhaswamy [IN/IN]; (IN) (For US Only).
PANDEY, Ram, Sahay [IN/IN]; (IN) (For US Only).
SREENIVASAN, Praveen [IN/IN]; (IN) (For US Only).
SURYAVANSHI, Uttam, Gopal [IN/IN]; (IN) (For US Only).
RAUT, Rohidas, Dasharath [IN/IN]; (IN) (For US Only).
SHAH, Arun, Kumar [IN/IN]; (IN) (For US Only)
Inventors: CHAKRABORTY, Bikash, Chandra; (IN).
RAJAGOPALAN, Manoj, Nalanda; (IN).
SRINIVASAN, Senthil, Kumar, Kandhaswamy; (IN).
PANDEY, Ram, Sahay; (IN).
SREENIVASAN, Praveen; (IN).
SURYAVANSHI, Uttam, Gopal; (IN).
RAUT, Rohidas, Dasharath; (IN).
SHAH, Arun, Kumar; (IN)
Agent: SUBRAMANIAM, Hariharan; Subramaniam, Nataraj & Associates, E-556, Greater Kailash-II, New Delhi 110 048 (IN)
Priority Data:
206/DEL/2005 02.02.2005 IN
Title (EN) LIGHTWEIGHT STRUCTURAL COMPOSITE FOR LOAD BEARING APPLICATION
(FR) COMPOSITE STRUCTUREL LÉGER POUR APPLICATION DE CHARGE
Abstract: front page image
(EN)The present invention relates to a lightweight structural composite, which comprises an inner core of lightweight panel encapsulated by outer layers of polymer material. Specifically, the lightweight panel consists of multiple laminations of corrugated thin metal or fibre reinforced plastic sheets kept in position by polymeric foam and/or adhesive, and enclosed in a casing of the same material. The outer layer is made up of a blend of thermosetting and thermoplastic polymers. The method of forming the composite comprises of stacking the corrugated sheets, filling the interstitial spaces with the foam, constructing the casing, the surface treatment of the panel for good adhesion to the outer polymer layer and the high temperature/pressure encapsulation of the panel with the polymer blend containing curing agents. The composite has application as replacement to wood, concrete or particle board panels used in ship docking, panels for wall, door and windows, blast-proof panels, rail sleepers and shipping pallets.
(FR)La présente invention concerne un composite structurel léger, comprenant un cœur interne de panneau léger encapsulé par des couches externes de matériau polymère. Spécifiquement le panneau léger consiste en de multiples stratifications de minces feuilles ondulées de plastique renforcé de métal ou de fibre maintenues en position par un adhésif et/ou une mousse polymère, et enfermées dans un coffrage du même matériau. La couche externe est constituée d’un mélange de polymères thermodurcissables et thermoplastiques. Le procédé de formation du composite consiste à empiler les feuilles ondulées, à remplir les espaces interstitiels avec la mousse, à construire le coffrage, à réaliser le traitement superficiel du panneau pour assurer une bonne adhérence à la couche polymère externe et l’encapsulation haute température/pression du panneau avec le mélange polymère contenant des agents de cuisson. Le composite peut servir d’alternative aux panneaux en bois, en béton ou agglomérés utilisés dans l’amarrage des navires, aux panneaux muraux, de porte et de fenêtres, aux panneaux anti-déflagrants, aux traverses de rail et aux palettes de navire.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)