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Machine translation
1. (WO2005030850) PROCESS TO OBTAIN AN INTERCALATED OR EXFOLIATED POLYESTER WITH CLAY HYBRID NANOCOMPOSITE MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/030850    International Application No.:    PCT/BR2003/000142
Publication Date: 07.04.2005 International Filing Date: 01.10.2003
Chapter 2 Demand Filed:    29.04.2005    
IPC:
C08K 3/34 (2006.01)
Applicants: UNIVERSIDADE ESTADUAL DE CAMPINAS - UNICAMP [BR/BR]; Cidade Universitária Zeferino Vaz, Distrito de Barão Geraldo, 13084-580 CAMPINAS - SP (BR) (For All Designated States Except US).
M&G POLYESTER S.A. [BR/BR]; WTC - World Trade Center, Avenida das Nações Unidas, 12551 - 8 andar, 04578-905 SÃO PAULO - SP (BR) (For All Designated States Except US).
GALEMBECK, Fernando [BR/BR]; (BR) (For US Only).
SOUZA, Maria de, Fátima, Brito [BR/BR]; (BR) (For US Only)
Inventors: GALEMBECK, Fernando; (BR).
SOUZA, Maria de, Fátima, Brito; (BR)
Agent: ARNAUD, Antonio, M., P.; Rua José Bonifácio, 93 - 9th floor, 01003-901 São Paulo - SP (BR).
GERBINO, Angelo (IT); c/o Jacobacci & Partners S.p.A, Corso Emilia 8, I-10152 Torino (IT)
Priority Data:
Title (EN) PROCESS TO OBTAIN AN INTERCALATED OR EXFOLIATED POLYESTER WITH CLAY HYBRID NANOCOMPOSITE MATERIAL
(FR) PROCEDE D'ELABORATION DE POLYESTER A INTERCALATION OU EXFOLIATION AVEC UN MATERIAU NANOCOMPOSITE HYBRIDE EN ARGILE
Abstract: front page image
(EN)Process to obtain an intercalated or exfoliated polyester with clay hybrid nanocomposite material. The present process refers to obtaining nanocomposites (C) containing intercalated and exfoliated lamellar materials, by inserting polyethylene terephthalate (PET) oligomers (B) between the lamellas of a phyllosilicate (A), without using additional reagents and/or solvents, through shearing of the phyllosilicate and oligomer mixture, in solid state. Herein, the phyllosilicate does not need to have been submitted to any previous wetting process. The invention refers to the obtention of a nanocomposite from a melted polymeric matrix (D), wherein a oligomer/clay composite concentrate, prepared through shearing, is diluted, thereby producing a nanocomposite polymer/ lamellar silicate PLSN (E), prepared through the growth of the grafted oligomer chains, a solid post-condensation process of the oligomer in the oligomer/clay composite. These materials are utilized to prepare specific articles for several applications, such as bottles and packaging in general.
(FR)L'invention concerne un procédé d'élaboration de polyester a intercalation ou exfoliation avec un matériau nanocomposite hybride en argile, à savoir des nanocomposites (C) à matériaux lamellaires avec intercalation et exfoliation, par insertion d'oligomères de PTPE (B) entre les lamelles d'un phyllosilicate (A), sans réactifs et/ou solvants additionnels, par cisaillement du mélange phyllosilicate/oligomère, à l'état solide. Le phyllosilicate ne nécessite aucun mouillage préalable. On décrit l'élaboration d'un nanocomposite à partir d'une matrice polymère fondue (D). Un concentré composite oligomère/argile, obtenu par cisaillement, est dilué, donnant un silicate lamellaire/polymère nanocomposite (E), qui résulte de la croissance de chaîne oligomères greffées, une technique de post-condensation solide de l'oligomère dans le composite oligomère/Argile. On utilise ces matériaux pour élaborer des articles spécifiques correspondant à différentes applications, du type bouteilles et emballages en général.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, 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, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IT, LU, MC, NL, 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)