Catalyst for polymerization of conjugated diene and method...

Details Catalyst for polymerization of conjugated diene and method... Catalyst for polymerization of conjugated diene and method...

2010-01-11

2011-12-27

Lu, Caixia (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S133000, C526S134000, C526S164000, C502S102000, C502S171000, C502S202000, C525S232000, C525S236000

Reexamination Certificate

active

08084565

ABSTRACT:
A catalyst for polymerization of conjugated diene is provided, which facilitates manufacture of a conjugated diene polymer with a high 1,4-cis structure content, leaves less aluminum residue on polymerization, and has high activity. A method of manufacturing conjugated diene polymers using the catalyst is also provided. A catalyst for polymerization of conjugated diene comprises (A) an yttrium compound; (B) an ionic compound including a non-coordinate anion and a cation; and (C) an organometallic compound including an element selected from the groups 2, 12 and 13 of the periodic table.

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