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US 5,633,394 AGranted
Catalyst compounds for olefin polymerization
AssigneeExxon Chemical Patents Inc.
InventorsHoward C. Welborn, Jr., John A. Ewen
Life of this patent
Estimating the term…
Abstract
Compounds useful as catalyst components for olefin polymerization. The compounds comprise derivatives of cyclopentadienyl complexes of the ZR or HF.
Claims8
A catalyst component for olefin polymerization represented by one of the formulas:
- (C.sub.5 R'.sub.m).sub.p R".sub.s (C.sub.5 R'.sub.m)MeQ.sub.3-p
- and
- R.sup.m.sub.s (C.sub.5 R'.sub.m).sub.2 MeQ'
- wherein Me is Zr or Hf, (C.sub.5 R'.sub.m) is a cyclopentadienyl or substituted cyclopentadienyl, each R', which can be the same or different, is hydrogen, an alkyl, alkenyl, aryl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, R" is a dialkyl germanium or silicon, or an alkyl phosphine or amine radical bridging two (C.sub.5 -R'.sub.m) rings, each Q which can be the same or different is aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or halogen, Q' is an alkylidene radical having from 1 to 20 carbon atoms, s is 1, p is 1, m is 4;
- and at least one R' is a hydrocarbyl radical when at least one Q is an alkyl radical or halogen.
2 more elements
A compound represented by one of the formulas:
- (C.sub.5 R'.sub.4)R"(C.sub.5 R'.sub.4)MeQ.sub.2
- and
- R"(C.sub.5 R'.sub.4).sub.2 MeQ'
- wherein Me is Zr or Hf, (C.sub.5 R'.sub.4) is a substituted cyclopentadienyl, each R', which can be the same or different, is selected from hydrogen, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, at least one R' is other than hydrogen on at least one (C.sub.5 R'.sub.4), R" is a germanium, silicon, phosphine or amine radical substituting on and bridging two (C.sub.5 R'.sub.4) rings, each Q which can be the same or different is an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or halogen, and Q' is an alkylidene radical having from 1-20 carbon atoms.
1 more element
A compound represented by one of the formulas:
- (C.sub.5 R'.sub.4)R"(C.sub.5 R'.sub.4)MeQ.sub.2
- and
- R"(C.sub.5 R'.sub.4).sub.2 MeQ'
- wherein Me is Zr or Hf, (C.sub.5 R'.sub.4) is a substituted cyclopentadienyl, each R', which can be the same or different, is selected from hydrogen, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, at least one R' is other than hydrogen on at least one (C.sub.5 R'.sub.4), R" is a phosphine or amine radical substituting on and bridging two (C.sub.5 R'.sub.4) rings, each Q, which can be the same or different is an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or halogen, and Q' is an alkylidene radical having from 1-20 carbon atoms.
1 more element
A compound represented by one of the formulas:
- C.sub.5 R'.sub.4)R"(C.sub.5 R'.sub.4)MeQ.sub.2
- and
- R"(C.sub.5 R'.sub.4).sub.2 MeQ'
- wherein Me is a Zr, (C.sub.5 R'.sub.4) is a substituted cyclopentadienyl, each R', which can be the same or different, is hydrogen, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, at least one R' is other than hydrogen on at least one (C.sub.5 R'.sub.4), R" is a germanium, phosphine or amine radical substituting on and bridging two (C.sub.5 R'.sub.4) rings, each Q which can be the same or different is an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or halogen, and Q' is an alkylidene radical having from 1-20 carbon atoms.
1 more element
A compound represented by one of the formulas:
- (C.sub.5 R'.sub.4)R"(C.sub.5 R'.sub.4)MeQ.sub.2
- and
- R"(C.sub.5 R'.sub.4).sub.2 MeQ'
- wherein Me is Hf, (C.sub.5 R'.sub.4) is a substituted cyclopentadienyl, each R', which can be the same or different, is selected from hydrogen, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, at least one R' is other than hydrogen on at least one (C.sub.5 R'.sub.4), R" is a C.sub.1 -C.sub.4 alkylene radical, a germanium, silicon, phosphine or amine radical substituting on and bridging two (C.sub.5 R'.sub.4) rings, each Q which can be the same or different is an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms or halogen, and Q' is an alkylidene radical having from 1-20 carbon atoms.
1 more element
A compound represented by one of the formulas:
- (C.sub.5 R'.sub.4)R"(C.sub.5 R'.sub.4)MeQ.sub.2
- and
- R"(C.sub.5 R'.sub.4).sub.2 MeQ'
- wherein Me is Group Zr or Hf, (C.sub.5 R'.sub.4) is a substituted cyclopentadienyl, each R', which can be the same or different, is selected from hydrogen, an alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms or two adjacent carbon atoms are joined together to form a C.sub.4 -C.sub.6 ring, at least one R' is other than hydrogen on at least one (C.sub.5 R'.sub.4), R" is a C.sub.1 -C.sub.4 alkylene radical, a germanium, silicon, phosphine or amine radical substituting on and bridging two (C.sub.5 R'.sub.4) rings, each Q which can be the same or different is an aryl, alkenyl, alkylaryl, or arylalkyl radical having from 1 to 20 carbon atoms, and Q' is an alkylidene radical having from 1-20 carbon atoms.
1 more element
Dependencies are inferred from the claim text.