[12] Patent
[11] Patent No.:GC0011794  
[45] Date of Publishing the Grant of the Patent: 1/Oct /2022                68/2022  
Number of the Decision to Grant the Patent:2022/191726
Date of the Decision to Grant the Patent:06/Oct/2022

[21] Application No.:GC 2012-23018

[22] Filing Date:11/12/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- PANNIER, Gaelle،2- CHAI, Choon Kooi

[73] Owner: INEOS EUROPE AG, Avenue des Uttins, 3, CH-1180 Vaud, Rolle, Switzerland

[74] Agent: Suleiman I. Al-Ammar Law Office




Int. Cl.: C08F 210/16; C08J 5/18 (2006.01)

[56] Cited Documents:

-US 2002/165330 A1 (CADY LARRY D [US] ET AL) 7 November 2002
-EP 1 935 909 A1 (INEOS EUROPE LTD [GB])25 June 2008
-EP 1 972 642 A1 (TOTAL PETROCHEMICALS RESFELUY [BE]) 24 September 2008
-EP 0 676 421 A1 (BP CHEM INT LTD [GB]INNOVENE EUROP LTD [GB])11 October 1995
-EP 2 348 057 A1 (INEOS MFG BELGIUM NV[BE]) 27 July 2011
-US 2004/102312 A1 (MCCULLOUGH LAUGHLIN G[US] ET AL) 27 May 2004
Examiner: Yahiya Naser Al-BuSafi

[57] Abstract: Novel copolymers of ethylene and α -olefins are provided having (a) a density in the range 0.900 – 0.940 g/cm3,(b) a melt index MI2 (2.16 kg, 190°C) in the range 0.01 – 50 g/10 min,(c) a molecular weight distribution (Mw/Mn, by conventional GPC) in the range 2.0 – 4.5,(d) a comonomer partition factor, Cpf> 1, and(e) a melt index MI2 (2.16 kg, 190°C) normalised Dow Rheology Index (DRI), [DRI/MI2] in the range 3 – 20.The novel copolymers may suitably be prepared by use of catalyst systems comprising activating supports. The copolymers are suitably prepared in the gas phase preferably in a single reactor. The copolymers exhibit unique properties in particular with respect to their rheology.
No. of claims: 20     No. of figures: 2


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