US5082909A
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Pure tungsten oxyphenolate complexes as DCPD polymerization catalysts
Assignee: Metton America Inc
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Filing: 1990-10-12
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Granted: 1992-01-21
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Expires: 2010-10-12
Abstract
Abstract This invention relates to a two component catalyst system for polymerization of metathesis polymerizable cycloolefins, comprising (a) a tungsten compound of the formula WOCl 4-x (OAr) x wherein Ar represents a hindered phenyl ring having bulky alkyl, alkoxyl halogen or aryl groups in the 2,6 position, i.e., diisopropyl or phenyl group and x=1, 2 or 3; and (b) an activator compound that is triphenyl tin hydride or trialkyl tin hydride, preferably a tributyltin hydride. Among the preferred molecules or groups that are substituted on the phenyl ring of the tungsten compound include chlorine, bromine, phenyl, methoxy and isopropyl. Ar may also represent a multisubstituted phenyl group such as 2,4-dichloro-6-methyl phenyl.
Inventors
- 👤 Andrew Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:00
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/69; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
48 words
A polymerization feed composition comprising: (a) a metathesis polymerizable cycloolefin; (b) a metathesis polymerization catalyst represented by the formula WOCl 4-x (OAr) x ; wherein x is 1, 2 or 3, wherein OAr represents a mono-, di-, tri-, tetra- or penta-substituted phenoxy group, and (c) a catalyst activator.
Claim 2
Dependent Claim
48 words
A polymerization feed composition comprising: (a) a metathesis polymerizable cycloolefin; (b) a metathesis polymerization catalyst represented by the formula WOCl 4-x (OAr) x ; wherein x is 1, 2 or 3, wherein OAr represents a mono-, di-, tri-, tetra- or penta-substituted phenoxy group, and (c) a catalyst activator.
Claim 3
Dependent Claim
39 words
The polymerization feed composition of claim 1 wherein said catalyst activator is selected from the group consisting of alkylaluminum compounds, alkylalkoxyaluminum halides, dialkylaluminum halides, trialkyltin hydrides, triaryltin hydrides, a mixture of trialkyltin hydrides and triethylsilane, dialkylzinc and diphenylzinc compounds.
Claim 4
Dependent Claim
14 words
The polymerization feed composition of claim 2, wherein said catalyst activator is tri-n-butyltin hydride.
Claim 5
Dependent Claim
40 words
The polymerization feed composition of claim 1 wherein said cycloolefin is a monomer selected from the group consisting of dicyclopentadiene, higher order cyclopentadiene oligomers, norbornene, norbornadiene, 4-alkylidene norbornenes, dimethanohexahydronaphthalene, dimethanohexahydronaphthalene, or a mixture of two or more of said monomers.
Claim 6
Dependent Claim
12 words
The polymerization feed composition of claim 2, wherein said cycloolefin is dicyclopentadiene.
Claim 7
Dependent Claim
38 words
The polymerization feed composition of claim 1 wherein said Ar in said metathesis polymerization catalyst is a phenyl ring, wherein said ring is substituted with alkyl, alkoxy, ketone, ester, carboxyl or aryl groups or halogens or mixtures thereof.
Claim 8
Dependent Claim
30 words
The polymerization feed composition of claim 16 wherein said phenyl ring is substituted with substituents selected from the group consisting of chlorine, bromine, iodine, phenyl, methyl, methoxy, and isopropyl groups.
Claim 9
Dependent Claim
83 words
The polymerization feed composition of claim 6 wherein said substituents are substituted at one or more positions on said phenyl ring wherein said positions are selected from the group consisting of the 2 position, the 3 position, the 4 position, the 2,6 positions, the 2,5 positions, the 2,4 positions, the 2,3 positions, the 3,2 positions, the 3,4 positions, the 3,5 positions, the 3,6 positions, the 2,4,6 positions, the 2,3,4 positions, the 3,4,5 positions, the 2,3,5,6 positions, the 2,3,4,5 positions and the 2,3,4,5,6 positions.
Claim 10
Dependent Claim
13 words
The polymerization feed composition of claim 1 further comprising a rate moderator compound.
Claim 11
Dependent Claim
26 words
The polymerization feed composition of claim 9 wherein said rate moderator compound is selected from the group consisting of pyridine, pyrazine, tributylphosphine, triisopropylphosphite, 2,6-dimethylpyrazine, and tributylphosphite.
Claim 12
Dependent Claim
17 words
The polymerization feed composition of claim 1 wherein said metathesis polymerization catalyst further comprises a stabilizer compound.
Claim 13
Dependent Claim
15 words
The polymerization feed composition of claim 11 wherein said stabilizer compound is a Lewis base.
Claim 14
Dependent Claim
31 words
The polymerization feed composition of claim 11 wherein said stabilizer compound is selected from the group consisting of diethylether; ethyleneglycoldimethylethers, bis(methoxy)ethylether, benzonitrile, acetonitrile, tetrahydrofuran, bulky phenols, bisphenols, polyphenols and mixtures thereof.
Claim 15
Dependent Claim
14 words
The polymerization feed composition of claim 13 wherein said stabilizer compound is bis(methoxy)ethyl ether.
Claim 16
Dependent Claim
15 words
The polymerization feed composition of claim 14 wherein said stabilizer compound further comprises a phenol.
Claim 17
Dependent Claim
76 words
A process for preparing molded objects comprising charging to a mold a liquid reaction mass comprising a metathesis polymerizable cycloolefin, a metathesis polymerization catalyst, and a catalyst activator, wherein said catalyst is represented by the formula WOCl 4-x (OAr) x wherein x is 1, 2 or 3 and Ar is a phenyl ring having between 1-5 substituents and wherein after said liquid reaction mass is charged to said mold, said reaction mass polymerizes in said mold.
Claim 18
Dependent Claim
76 words
A process for preparing molded objects comprising charging to a mold a liquid reaction mass comprising a metathesis polymerizable cycloolefin, a metathesis polymerization catalyst, and a catalyst activator, wherein said catalyst is represented by the formula WOCl 4-x (OAr) x wherein x is 1, 2 or 3 and Ar is a phenyl ring having between 1-5 substituents and wherein after said liquid reaction mass is charged to said mold, said reaction mass polymerizes in said mold.
Claim 19
Dependent Claim
37 words
The process of claim 16 wherein said catalyst activator is selected from the group consisting of alkylaluminum compounds, alkylalkoxyaluminum halides, dialkylaluminum halides, trialkyltin hydrides, triaryltin hydrides, a mixture of trialkyltin hydrides and triethylsilane, dialkylzinc and diphenylzinc compounds.
Claim 20
Dependent Claim
13 words
The process of claim 17 wherein said catalyst activator is tri-n-butyl tin hydride.
Claim 21
Dependent Claim
38 words
The process of claim 16 wherein said cycloolefin is a monomer selected from the group consisting of dicyclopentadiene, higher order cyclopentadiene oligomers, norbornene, norbornadiene, 4-alkylidene norbornenes, dimethanohexahydronaphthalene, dimethanohexahydronaphthalene, or a mixture of two or more of said monomers.
Claim 22
Dependent Claim
10 words
The process of claim 19 wherein said cycloolefin is dicyclopentadiene.
Claim 23
Dependent Claim
25 words
The process of claim 16 wherein said phenyl ring is substituted with alkyl, alkoxyl, ketone, ester, carboxyl or aryl groups or halogens or mixtures thereof.
Claim 24
Dependent Claim
29 words
The process of claim 21 wherein said phenyl ring is substituted with a substituent selected from the group consisting of chlorine, bromine, iodine, phenyl, methyl, methoxy, and isopropyl groups.
Claim 25
Dependent Claim
81 words
The process of claim 21 wherein said substituents are substituted at one or more positions on said phenyl ring wherein said positions are selected from the group consisting of the 2 position, the 3 position, the 4 position, the 2,6 positions, the 2,5 positions, the 2,4 positions, the 2,3 positions, the 3,2 positions, the 3,4 positions, the 3,5 positions, the 3,6 positions, the 2,4,6 positions, the 2,3,4 positions, the 3,4,5 positions, the 2,3,5,6 positions, the 2,3,4,5 positions and the 2,3,4,5,6 positions.
Claim 26
Dependent Claim
11 words
The process of claim 16 further comprising a rate moderator compound.
Claim 27
Dependent Claim
24 words
The process of claim 16 wherein said rate moderator compound is selected from the group consisting of pyridine, pyrazine, tributylphosphine, triisopropylphosphite, 2,6-dimethylpyrazine, and tributylphosphite.
Claim 28
Dependent Claim
15 words
The process of claim 16 wherein said metathesis polymerization catalyst further comprises a stabilizer compound.
Claim 29
Dependent Claim
13 words
The process of claim 26 wherein said stabilizer compound is a Lewis base.
Claim 30
Dependent Claim
29 words
The process of claim 26 wherein said stabilizer compound is selected from the group consisting of diethylether; ethyleneglycoldimethylethers, bis(methoxy)ethylether, benzonitrile, acetonitrile, tetrahydrofuran, bulky phenols, bisphenols, polyphenols and mixtures thereof.
Claim 31
Dependent Claim
12 words
The process of claim 28 wherein said stabilizer compound is bis(methoxy)ethyl ether.
Claim 32
Dependent Claim
13 words
The process of claim 29 wherein said stabilizer compound further comprises a phenol.
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