EP0978520A1
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EP
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Solid catalyst component for olefin polymerization and catalyst
Assignee: Toho Titanium Co Ltd
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Filing: 1999-02-24
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Granted: —
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Expires: 2019-02-24
Abstract
Abstract The objective of the present invention is to provide a solid catalyst component and a catalyst for polymerization of olefins, which shows a high activity, can lower the rate of forming a polymer having a low molecular weight or a low stereoregular polymer which is soluble in a polymerization solvent and can obtain a high stereoregular polymer in a high yield. The present invention is a solid catalyst component (A) for polymerization of olefins prepared by contacting (a) dialkoxymagnesium, (b) a titanium compound, (c) a tester of an aromatic dicarboxylic acid, (d) an aromatic hydrocarbon and (e) an organic silicon compound containing a hydroxyl group, and a catalyst for polymerization of olefins prepared from the solid catalyst component (A), an organic aluminum compound (B) represented by the general formula R 2 p A1Q 3-p and an organic silicon compound (C) represented by the general formula R 3 q Si(OR 4 ) 4-q .
Inventors
- 👤 T. Toho Titanium Co. Ltd. KATAOKA
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 15:39
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/65; C08F4/652; C08F4/658; C08F10/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A solid catalyst component for polymerization of olefins
prepared by contacting the following component (a), (b), (c),
(d) and (d); (a) a dialkoxymagnesium, (b) a titanium compound represented by the general formula
Ti(OR 1 ) n X 4-n (wherein R 1 represents a C 1-4 -alkyl group; X
represents a chlorine atom, a bromine atom and an iodine atom;
and n represents a real number of from not less than 0 to not
more than 3), (c) a tester of an aromatic dicarboxylic acid, (d) an aromatic hydrocarbon and (e) an organic silicon compound containing a hydroxyl group.
Claim 2
Dependent Claim
169 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said organic silicon compound containing
a hydroxyl group (e) is a compound represented by the general
formula: (wherein R 5 and R 12 represent a methyl group or hydroxyl group
which may be the same or different; R 6 , R 7 , R 8 , R 10 and R 11 represent a methyl group or a phenyl group which may be the
same or different; R 9 represents a C 1-10 alkyl group which may
have a hydroxyl group; Z 1 and Z 2 represent a single bond or a
divalent hydrocarbon group which may be the same or different;
r represents a real number of from not less than 0 to not more
than 30,000; s represents a real number of from not less than
0 to not more than 30,000; and at least one of R 5 and R 12 represents a hydroxyl group when R 9 does not include a hydroxyl
group).
Claim 3
Dependent Claim
37 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said dialkoxymagnesium as the component
(a) is one or more selected from a group consisting of
dimethoxymagnesium, diethoxymagnesium, dipropoxymagnesium,
dibuthoxymagnesium, ethoxymethoxymagnesium, ethoxypropoxymagnesium
and buthoxyethoxymagnesium.
Claim 4
Dependent Claim
23 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said dialkoxymagnesium as the component
(a) is diethoxymagnesium or dipropoxymagnesium.
Claim 5
Dependent Claim
24 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said titanium compound as the component
(b) is a titanium tetrahalide.
Claim 6
Dependent Claim
33 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said tester of an aromatic dicarboxylic
acid as the component (c) is a diester of phthalic acid or
terephthalic acid.
Claim 7
Dependent Claim
37 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said aromatic hydrocarbon as the
component (d) is one or more selected from a group consisting
of benzene, toluene, xylene, ethylbenzene, propylbenzene and
trimethylbenzene.
Claim 8
Dependent Claim
24 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said aromatic hydrocarbon as the
component (d) is toluene or xylene.
Claim 9
Dependent Claim
28 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein said solid catalyst component is prepared
by contacting a polysiloxane with components (a) to (e).
Claim 10
Dependent Claim
90 words
A solid catalyst component for polymerization of olefins
as in claim 1, wherein a proportion of amount of the component
(b) is 0.5 to 100 moles per mol of the component (a), a
proportion of amount of the component (c) is 0.01 to 10 moles
per mol of the component (a), a proportion of amount of the
component (d) is 0.001 to 500 moles per mol of the component
(a), and a proportion of amount of the component (e) is 0.001
to 1000 ml per mol of the component (a),
Claim 11
Dependent Claim
140 words
A catalyst for polymerization of olefins, prepared from
the following components (A), (B) and (C): (A) the solid catalyst component for polymerization of
olefins as defined in Claim 1; (B) an organic aluminum compound represented by the general
formula: R 2 p A1Q 3-p (wherein R 2 represents a C 1-4 -alkyl group; Q represents a
hydrogen atom or a halogen atom including bromine, chlorine
and iodine; and p represents a real number of more than 0 to
not more than 3); and (C) an organic silicon compound represented by the general
formula: R 3 q Si(OR 4 ) 4-q (wherein R 3 and R 4 may be the same or different and represents
a hydrocarbon group including C 1-12 -alkyl, cycloalkyl, phenyl,
allyl, aralkyl and vinyl groups; and q represents 0 or an
integer of from 1 to 3).
Claim 12
Dependent Claim
53 words
A catalyst for polymerization of olefins as in claim 11,
wherein a proportion of amount of the component (B) is 1 to
1000 moles per mol of titanium atom in the component (A), and
a proportion of amount of the component (C) is 0.002 to 10 moles
per mol of the component (B).
Claim 13
Dependent Claim
53 words
A catalyst for polymerization of olefins as in claim 11,
wherein a proportion of amount of the component (B) is 50 to
800 moles per mol of titanium atom in the component (A), and
a proportion of amount of the component (C) is 0.01 to 2 moles
per mol of the component (B).
References Cited (Backward Citations)
No citation records indexed.
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