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1. (WO2004005378) LONG CHAIN BRANCHING POLYPROPYLENE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/005378    International Application No.:    PCT/EP2003/007061
Publication Date: 15.01.2004 International Filing Date: 01.07.2003
IPC:
C08J 3/28 (2006.01)
Applicants: TOTAL PETROCHEMICALS RESEARCH FELUY [BE/BE]; Zone Industrielle C, B-7181 Seneffe (Feluy) (BE) (For All Designated States Except US).
OLIVIER, Dominique [BE/BE]; (BE) (For US Only).
MICHEL, Jacques [BE/BE]; (BE) (For US Only).
DUPIRE, Marc [BE/BE]; (BE) (For US Only)
Inventors: OLIVIER, Dominique; (BE).
MICHEL, Jacques; (BE).
DUPIRE, Marc; (BE)
Common
Representative:
TOTAL PETROCHEMICALS RESEARCH FELUY; Patent Department, Zone Indstrielle C, B-7181 Seneffe (Feluy) (BE)
Priority Data:
02077723.1 09.07.2002 EP
Title (EN) LONG CHAIN BRANCHING POLYPROPYLENE
(FR) POLYPROPYLENE A RAMIFICATION EN CHAINES LONGUES
Abstract: front page image
(EN)The invention discloses a process for producing polypropylene having increased melt strength by irradiating polypropylene in pellet form with an electron beam having an energy of from 0.5 to 25 MeV, delivered by an accelerator having a power of from 50 to 1000 kW and with a total radiation dose of from 10 to 120 kGray, characterised in that the irradiation is carried out in the presence of air.
(FR)L'invention se rapporte à un procédé de production de polypropylène doté d'une résistance accrue à l'état fondu par radioexposition du polypropylène sous forme de pastille au moyen d'un faisceau d'électrons ayant une énergie comprise entre 0,5 et 25 MeV, délivré par un accélérateur ayant une puissance comprise entre 50 et 1 000 kW et associé à une dose de rayonnement global comprise entre 10 et 120 kGray, ledit procédé se caractérisant en ce que cette radioexposition est effectuée en présence d'air.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, 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)