Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1992-06-12
1993-03-16
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526170, 5263482, 526352, 502350, C08F 442
Patent
active
051945320
ABSTRACT:
Olefins are polymerized in the presence of a homogeneous catalyst represented by the formula LTi(NR.sub.2).sub.3 wherein L is a .pi.-bonded ligand selected from the group consisting of indenyl, C.sub.1 -C.sub.4 alkyl substituted indenyl, --OSiR.sub.3 substituted indenyl, R is a C.sub.1 -C.sub.4 alkyl group wherein each R attached to the same nitrogen atom is the same, but the R groups attached to different nitrogen atoms can be the same or different from those attached to the other nitrogen atoms.
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"Polymerization of Olefins with Homogeneous Zirconocene/Aluminoxane Catalysts" by W. Kaminsky and R. Steiger, Polyhedron, vol. 7, No. 22/23, pp. 2375-2381, 1988.
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Gifford Dennis R.
Hefner John G.
Kolthammer Brian W. S.
Schofer Joseph L.
The Dow Chemical Company
Wu David
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