US4897456A
Expired / Lapsed
US
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Rate moderated two component metathesis catalyst system
Assignee: Metton America Inc
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Filing: 1989-01-13
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Granted: 1990-01-30
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Expires: 2009-01-13
Abstract
Abstract Disclosed is a method of reducing the activation rate of an alkyl aluminum activator in the metathesis polymerization of polycyclic cycloolefins. Activation rate is reduced by use of a bidentate Lewis base as the reaction rate moderator.
Inventors
- 👤 Lawrence L. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
108 words
A polymerization feed composition comprising: (a) a methathesis polymerizable polycyclic cycloolefin selected from the group consisting of dicyclopentadiene, methyl dicyclopentadiene, tricyclopentadiene, norbornene, norbornadiene, alkylidene norbornenes, dimethanooctahydronaphthalene, and dimethanohexahydronaphthalene; (b) a methathesis polymerization catalyst selected from the group consisting of molybdenum halides, tungsten halides and said halides wherein two valences are oxygen instead of halogen, wherein said catalyst is solubilizied with a phenol compound; and (c) a catalyst activator comprising an alkyl aluminum compound and a reaction rate modifier comprising a bidentate Lewis base within said Lewis base has one functional group which is chemically reactive with aluminum and a second functional group which forms an adduct with aluminum.
Claim 2
Dependent Claim
108 words
A polymerization feed composition comprising: (a) a methathesis polymerizable polycyclic cycloolefin selected from the group consisting of dicyclopentadiene, methyl dicyclopentadiene, tricyclopentadiene, norbornene, norbornadiene, alkylidene norbornenes, dimethanooctahydronaphthalene, and dimethanohexahydronaphthalene; (b) a methathesis polymerization catalyst selected from the group consisting of molybdenum halides, tungsten halides and said halides wherein two valences are oxygen instead of halogen, wherein said catalyst is solubilizied with a phenol compound; and (c) a catalyst activator comprising an alkyl aluminum compound and a reaction rate modifier comprising a bidentate Lewis base within said Lewis base has one functional group which is chemically reactive with aluminum and a second functional group which forms an adduct with aluminum.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein the catalyst activator comprises a dialkyl aluminum halide.
Claim 4
Dependent Claim
32 words
The composition of claim 1 wherein the catalyst activator is a mixture of a trialkyl aluminum and a dialkyl aluminum halide wherein the alkyl groups have about 2 to 10 carbon atoms.
Claim 5
Dependent Claim
14 words
The composition of claim 2 wherein the dialxyl aluminum halide comprises dialkyl aluminum iodide.
Claim 6
Dependent Claim
14 words
The composition of claim 3 wherein the dialkyl aluminum halide comprises dialkyl aluminum iodide.
Claim 7
Dependent Claim
13 words
The composition of claim 4 wherein the bidentate Lewis base is tetrahydrofurfuryl alcohol.
Claim 8
Dependent Claim
12 words
The composition of claim 4 wherein the bidentate Lewis base is 8-hydroxyquinoline.
Claim 9
Dependent Claim
73 words
The composition of claim 4 wherein the bidentate Lewis base is a compound selected from the class of compounds having the formula: ##STR3## Where R is a 1 to 5 carbon alkyl radical or a phenyl or benzyl radical, R' is a 1 to 5 carbon alkyl radical or hydrogen, and in instances where a plurality of R or R' groups are present in a structure, they may be the same or different.
Claim 10
Dependent Claim
12 words
The composition of claim 8 wherein the bidentate Lewis base is acetylacetone.
Claim 11
Dependent Claim
12 words
The composition of claim 8 wherein the bidentate. Lewis base is dibenzoylmethane.
Claim 12
Dependent Claim
13 words
The composition of claim 5 wherein the bidentate Lewis base is tetrahydrofurfuryl alcohol.
Claim 13
Dependent Claim
12 words
The composition of claim 5 wherein the bidentate Lewis base is 8-hydroxyquinoline.
Claim 14
Dependent Claim
73 words
The composition of claim 5 wherein the bidentate Lewis base is a compound selected from the class of compounds having the formula: ##STR4## where R is a 1 to 5 carbon alkyl radical or a phenyl or benzyl radical, R' is a 1 to 5 carbon alkyl radical or hydrogen, and in instances where a plurality of R or R' groups are present in a structure, they may be the same or different.
Claim 15
Dependent Claim
12 words
The composition of claim 13 wherein the bidentate Lewis base is acetylacetone.
Claim 16
Dependent Claim
12 words
The composition of claim 13 wherein the bidentate Lewis base is dibenzoylmethane.
References Cited (Backward Citations)
US4080491A
Cited
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