Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2002-12-20
2004-04-20
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S115000, C526S117000, C526S170000, C526S171000, C526S172000, C526S164000, C526S134000, C526S169000, C526S169100, C526S169200, C502S103000, C556S028000, C556S051000, C556S052000, C556S057000
Reexamination Certificate
active
06723807
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a catalyst component for addition polymerization, a catalyst for addition polymerization, and a process for producing an addition polymer. More particularly, the present invention relates to a catalyst component for addition polymerization composed of a transition metal compound having two transition metal atoms in one molecule, a catalyst for addition polymerization prepared by using the same, and a process for producing an addition polymer using this catalyst for addition polymerization.
2. Description of Related Arts
With respect to processes for producing an addition polymer such as an olefin polymer and the like using a transition metal compound which forms a single site catalyst such as a metallocene complex and the like, many reports have been reported. For example, JP60-245604A discloses a process for producing a copolymer of ethylene with an &agr;-olefin using a metallocene complex and half metallocene complex.
SUMMARY OF THE INVENTION
A catalyst for addition polymerization used in the production of an addition polymer is more efficient when activity thereof is higher, and therefore, a catalyst for addition polymerization of high activity is required.
An object of the present invention is to provide a catalyst for addition polymerization having a high activity.
Another object of the present invention is to provide an process for producing an addition polymer with the catalyst.
Still another object of the present invention is to provide a transition metal compound useful as a catalyst component for addition polymerization.
Other objects and advantages of the present invention will be apparent from the description below.
Namely, the present invention relates to a catalyst for addition polymerization obtained by a process comprising bringing
a transition metal compound(A) represented by the general formula [1]:
[L
p
X
o
Cp
j
M(N
2
)
n
M′X
m
L
l
]X′
k
[
1
],
wherein M and M′ each independently represent a transition metal atom of Group 3 to 10 in the Periodic Table of the Elements; X each independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group substituted with a hydrocarbon group, alkoxy group, aralkyloxy group, aryloxy group, di-substituted amino group substituted with two hydrocarbon groups, azido group, cyano group or isothiocyanate group; Cp is a group having a cyclopentadiene anion skeleton; L represents a group which bonds to M or M′ by lone pair of electrons or a &pgr; electron; X′ represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; n+o+p+j≦6; n represents an integer of 1 to 3; and n+l+m≦6, into contact with
an organoaluminum compound selected from the group consisting of the following (B1), and at least one aluminoxane selected from the group consisting of the following (B2) and (B3) and/or the following (C), or with
at least one aluminoxane selected from the group consisting of the following (B2) and (B3) and/or the following (C):
(B1) organoaluminum compounds of the general formula E
1
a
AlZ
3-a
,
(B2) cyclic aluminoxanes having a structure of the general formula {—Al(E
2
)—O—}
b
,
(B3) linear aluminoxanes having a structure of the general formula E
3
{—Al(E
3
)—O—}
c
AlE
3
2
,
(wherein, each of E
1
, E
2
and E
3
represents a hydrocarbon group; all E
1
s, all E
2
s or all E
3
s may be the same or different; Z represents a hydrogen atom or halogen atom; all Zs may be the same or different; a represents a number satisfying 0<a<3; b represents an integer of 2 or more; and c represents an integer of 1 or more.), and
(C) one or more boron compounds selected from the following (C1) to (C3):
(C1) boron compounds represented by the general formula BQ
1
Q
2
Q
3
,
(C2) boron compounds represented by the general formula G
+
(BQ
1
Q
2
Q
3
Q
4
)
−
, and
(C3) boron compounds represented by the general formula (L-H)+(BQ
1
Q
2
Q
3
Q
4
),
wherein, B represents boron in trivalent state; Q
1
to Q
4
represent a halogen atom, hydrocarbon group, halogenated hydrocarbon group, substituted silyl group, alkoxy group or di-substituted amino group; they may be the same or different; G
+
represents an inorganic or organic cation; L represents a neutral Lewis base; and (L-H)
+
represents a Brønsted acid.
Further, the present invention relates to a process for producing an addition polymer using this catalyst.
Still further, the present invention relates to a transition metal compound (A), useful as a catalyst component for addition polymerization, represented by the general formula [1]:
[L
p
X
o
Cp
j
M(N
2
)
n
M′X
m
L
l
]X′
k
[1]
wherein, M and M′ each independently represent a transition metal atom of Group 3 to 10 in the Periodic Table of the Elements; X each independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group, alkoxy group, aralkyloxy group, aryloxy group, di-substituted amino group, azido group, cyano group or isothiocyanate group; Cp is a group having a cyclopentadiene anion skeleton; L represents a group which bonds to M or M′ by lone pair of electrons or a &pgr; electron; X′ represents a counter anion; k, l, m, o and peach independently represent an integer of 0 to 5; j represents an integer of 0 to 1; n represents an integer of 1 to 3; n+o+p+j is an integer of 6 or less; and n+l+m is an integer of 6 or less.
REFERENCES:
patent: 1259856 (1972-01-01), None
patent: 9640805 (1996-10-01), None
Mizobe, Y.; Yokobayashi, Y.; Oshita, H.; Takahashi, T.; Hidai, M. Organometallics 1994, 13, 3764-3766.*
Green, Malcolm L. H. et al: &mgr;-Dinitrogen-bis{[1,2-bis(dimethylphosphino)ethane]hydrido-[&eegr;-(1,3,5-trimethylbenzene)]molybdenum} Cation; pp. 2164-2166.
Konstantinos D. Demadis et al: Localization in trans,trans-[(tpy)(Cl)2OsII(N2)OsII(Cl)2(tpy)]+(tpy =2,2′:6′,2″-Terpyridine);Inorganic Chemistry, vol. 36, No. 25, 1997; pp. 5678-5679.
Leslie D. Field et al: Synthesis and Properties of Iron(II) Hydride Complexes Containing the Tripodal Tetraphosphine Ligand P(CH2CH2PMe2)3; Inorganic Chemistry, 1997, 36, 5984-5990.
Green, Malcolm L. H. et al: Arene Molybdenum Chemistry: Some &pgr;-Allyl, Dihydride, Dinitrogen, and Carbonly Derivatives, 1973, pp. 301-306.
Y. Mizobe et al., Preparation of Heterobimetallic Complexes with a Bridging Dinitrogen Ligand, [WX(PMe2Ph)4(&mgr;-N2)MCp2Cl](M=Ti,X=Cl;M=Zr,Hf,X-I), and X-ray Structure of [WI(PMe2Ph)3(py)(&mgr;-N2)ZrCp2Cl](py=Pyridine)1″; Organometallics, 1994, 13, pp. 3764-3766.
H. Ishino et al.; “Novel Olefin Polymerization Catalyzed by Heterobimetallic Bridging Dinitrogen Complexes Containing Group 4 and Group 6 Transition Metals”; 2000 Kinki Chemical Society, Japan, pp. 228-229.
H. Ishino et al.; Synthesis, Structures, and Reactivities of Heterobimetallic Bridging Dinitrogen Complexes Containing Group 6 and Group 4 or 5 Transition Metals1; Organometallics; 20, pp. 188-198.
Mizobe, Y.; Yokobayashi, Y.; Oshita, H.; Takahashi, T.; Hidai, M. Organometallics 1994, 13, 3764-3766.
Hidai Masanobu
Nabika Masaaki
Lee Rip A.
Stevens Davis Miller & Mosher L.L.P.
Sumitomo Chemical Company Limited
Wu David W.
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