continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6460/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :23/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : POLYMERIZATION CATALYSTS FOR PRODUCING POLYMERS WITH LOW LEVELS OF LONG
CHAIN BRANCHING
(51) International classification :C08F 10/00 (71)Name of Applicant :
(31) Priority Document No :11/345,966
1)CHEVRON PHILLIPS CHEMICAL COMPANY, LP
(32) Priority Date :02/02/2006
Address of Applicant :10001 SIX PINES DRIVE, THE
(33) Name of priority country :U.S.A.
WOODLANDS, TX 77380, U.S.A. U.S.A.
(86) International Application No :PCT/US2007/061519 (72)Name of Inventor :
Filing Date
:02/02/2007
1)YANG, QING
(87) International Publication No :WO 2007/092753 2)JENSEN, MICHAEL D
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)MARTIN, JOEL L.
4)THORN, MATTHEW G.
5)MCDANIEL, MAX P.
(62) Divisional to Application Number :NA
6)YU, YOULU
Filing Date
(57) Abstract :
:NA
7)ROHLFING, DAVID C.
This invention relates to catalyst compositions, methods, and polymers encompassing at least one Group 4 metallocene compound
comprising bridging &eegr;5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one
activator. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.
No. of Pages : 128 No. of Claims : 31
The Patent Office Journal 24/10/2008 25889