[12] Patent
[11] Patent No.:GC0004559  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/90065
Date of the Decision to Grant the Patent:25/Dec/2016

[21] Application No.:GCC/P/2008/10777

[22] Filing Date:10/5/2008

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
14/5/2007
11/803,400

[72] Inventor: Periagaram Srinivasan Ravishankar

[73] Owner: ExxonMobil Chemical Patents Inc., 5200 Bayway Drive, Baytown, Texas, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
Int. Cl.: C08F 210/18, 4/6592 (2006.01)

[56] Cited Documents:

-WO 96/04290 A (Dow CHEMICAL CO [US])15 February 1996
-JP 2004 143437 A (IDEMITSU PETROCHEMICALCo., LTD., JAPAN) 20-May 2004
-JP 2004 143434 A (IDEMITSU PETROCHEMICALCo., LTD., JAPAN) 20 May 2004
-US 6 245 856 Bl (KAUFMAN LAWRENCE GEORGE[US] ET AL) 12 June 2001
-EP-1 152 016 A (MITSUI CHEMICALS INC [JP])7 November 2001
-EP 1 065 241 A (MITSUI CHEMICALS INC [JP])
-WO 97/38019 A (UNIROYAL CHEM CO INC [US])16 October 1997
-EP 0 751 156 A (MITSUI PETROCHEMICAL IND[JP] MITSUI CHEMICALS INC [JP])2 January 1997
-US 6 207 756 Bl (DATTA SUDHIN [US] ET AL)27 March 2001
-US 5 907 021 A (TURNER HOWARD WILLIAM [US]ET AL) 25 May 1999
 
Examiner: Bander M. Al-Thobity

[54] ETHYLENE ELASTOMER COMPOSITIONS
[57] Abstract: In a process for producing an elastomer composition, ethylene, at least one alpha-olefin, and at least one diene is contacted with a catalyst system comprising at least one metallocene catalyst compound and a non-coordinating anion activator. The at least one metallocene catalyst compound comprises an indenyl complex having the general formula: (In1R1m)R3(In2R2p)MXq; wherein the or each R1 is a substituent of the indenyl ring In1 and the or each R2 is a substituent of the indenyl ring In2, each R1 and R2 is, independently, a halogen or a hydrocarbyl, halocarbyl, hydrocarbyl-substituted organometalloid or halocarbyl-substituted organometalloid group containing up to about 20 carbon atoms, and at least one R1 or R2 substituent is bonded to the 2-position or the 4-position of its associated indenyl ring; m is 1 to 6; p is 1 to 6; R3 is a bridging group, such that the number of atoms in the direct chain between the (In1R1m) ligand and the (In2R2p) ligand is 1 to 8, M is a transition metal from Group 3, 4, 5 or 6 of the Periodic Table of the Elements, or an actinide or lanthanide metal atom; q is equal to the valence of M minus 2; and each X is a non-cyclopentadienyl ligand and is, independently, a hydrocarbyl, oxyhydrocarbyl, halocarbyl, hydrocarbyl-substituted organometalloid, oxyhydrocarbyl-substituted organometalloid or halocarbyl-substituted organometalloid group containing up to about 20 carbon atoms; provided that two X groups may be joined and bound to the metal atom to form a metallacycle ring containing from about 3 to about 20 carbon atoms; or two X groups together can be an olefin, diolefin or aryne ligand
No. of claims: 17


 

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