V/TI multi-site olefin polymerization catalyst

Details V/TI multi-site olefin polymerization catalyst V/TI multi-site olefin polymerization catalyst

1993-02-12

1995-04-11

Pal, Asok

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502114, 502115, 502132, 502133, 526116, 526121, 526128, B01J 3100

Patent

active

054058171

ABSTRACT:
Catalysts useful in olefin polymerization are a mixture of (a) a titanium-containing compound which is (i) Ti(Z.sup.1).sub.t (OZ.sup.2).sub.p-t, (ii) the product of reacting Z.sup.3 --Mg--N(--Z.sup.5)--Si(Z.sup.4).sub.3 or Z.sup.3 --Mg--N(--Z.sup.5)--Si(Z.sup.4).sub.2 --N(--Z.sup.5)--Mg--Z.sup.3 with Ti(Z.sup.1).sub.t (OZ.sup.2).sub.p-t, or (iii) the product of reacting Mg metal, Mg dihalide and Ti(OZ.sup.2).sub.4, wherein Z.sup.1 is halide, Z.sup.2 is C.sub.1-18 hydrocarbyl, p is 3-4, t is 0-p, and Z.sup.3, Z.sup.4 and Z.sup.5 can be C.sub.1-18 alkyl or C.sub.6-14 aryl, and Z.sup.4 can be hydrogen, and Z.sup.5 can be --Si(Z.sup.4).sub.3 ; (b) one or more of V(X.sup.2).sub.c (OR.sup.2).sub.b-c, VO(X.sup.3).sub.d (OR.sup.3).sub.3-d, or VO(X.sup.4).sub.2, wherein X.sup.2, X.sup.3 and X.sup. 4 are halogen, R.sup.2 and R.sup.3 are C.sub.1-18 hydrocarbyl, b is 3-4, c is 0-b, and d is 0-3; and (c) Zn(X.sup.1).sub.2.2Al(R.sup.1).sub.3 and/or both of Zn(X.sup.1).sub.2 and one or more of M(R.sup.5).sub.e (X.sup.5).sub.3-e, Al.sub.2 (R.sup.5).sub.3 (X.sup.5).sub.3 or Mg(R.sup.6).sub.f Y.sub.2-f, wherein X.sup.1 and X.sup.5 are halide, R.sup.1, R.sup.5, R.sup.6 and R.sup.9 are C.sub.1-12 hydrocarbyl, M is Al or B, e is 0-3, Y is halide, O--(C.sub.1-12 hydrocarbyl) or N(SiR.sup.9.sub.3).sub.2, and f is 0-2.

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