US4883849A
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US
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Nitrogen compounds that delay the metathesis polymerization of cycloolefins
Assignee: Hercules LLC
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Filing: 1988-12-30
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Granted: 1989-11-28
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Expires: 2008-12-30
Abstract
Abstract Disclosed is a method of delaying the metathesis polymerization of strained ring cycloolefins by addition of certain nitrogen-containing compounds including various aromatic amines or mixtures thereof.
Inventors
- 👤 Albert S. Matlack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:36
CPC Classifications
C; C08; C08F; C08F4/00; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A polymerization feed composition comprising: (a) a metathesis polymerizable cycloolefin; (b) a metathesis polymerization catalyst; (c) a catalyst activator comprising an alkyl aluminum compound; and (d) a reaction rate moderator, wherein said reaction moderator is a nitrogen compound represented by the formula: ##STR3## wherein X represents an aryl, alkaryl, or haloaryl group; Y represents an alkyl group or hydrogen and Z represents an alkyl, aralkyl, or cycloalkyl group or hydrogen, and wherein when neither Y nor Z represent hydrogen, X, Y and Z all must represent alkyl groups.
Claim 2
Dependent Claim
88 words
A polymerization feed composition comprising: (a) a metathesis polymerizable cycloolefin; (b) a metathesis polymerization catalyst; (c) a catalyst activator comprising an alkyl aluminum compound; and (d) a reaction rate moderator, wherein said reaction moderator is a nitrogen compound represented by the formula: ##STR3## wherein X represents an aryl, alkaryl, or haloaryl group; Y represents an alkyl group or hydrogen and Z represents an alkyl, aralkyl, or cycloalkyl group or hydrogen, and wherein when neither Y nor Z represent hydrogen, X, Y and Z all must represent alkyl groups.
Claim 3
Dependent Claim
41 words
The polymerization feed composition of claim 1 wherein said metathesis polymerizable cycloolefin is a monomer selected from the group consisting of dicyclopentadiene, norbornene, norbornadiene, dimethanohexahydronaphthalene and substituted derivatives of said monomers, or a mixture of two or more of said monomers.
Claim 4
Dependent Claim
14 words
The polymerization feed composition of claim 2 wherein said metathesis polymerizable cycloolefin is dicyclopentadiene.
Claim 5
Dependent Claim
25 words
The polymerization feed composition of claim 3 wherein said reaction rate moderator comprises an additive selected from the group consisting of alkylarylamines and aryl amines.
Claim 6
Dependent Claim
22 words
The composition of claim 4 wherein the reaction rate moderator is an alkylarylamine selected from the group consisting of N-ethylaniline and aniline.
Claim 7
Dependent Claim
14 words
The composition of claim 5 wherein dichlorodiphenylmethane is added to said metathesis polymerization catalyst.
Claim 8
Dependent Claim
96 words
In a process for preparing molded objects wherein a liquid reaction mass comprising a metathesis polymerizable cycloolefin, a metathesis polymerization catalyst, an alkyl aluminum catalyst activator and a reaction rate moderator are charged to a mold in which polymerization will take place, the improvement wherein said reaction rate moderator comprises: ##STR4## wherein X represents an aryl, alkaryl, or haloaryl group; Y represents an alkyl group or hydrogen and Z represents an alkyl, aralkyl, or cycloalkyl group or hydrogen, and wherein when neither Y nor Z represents hydrogen, X, Y and Z all must represent alkyl groups.
Claim 9
Dependent Claim
96 words
In a process for preparing molded objects wherein a liquid reaction mass comprising a metathesis polymerizable cycloolefin, a metathesis polymerization catalyst, an alkyl aluminum catalyst activator and a reaction rate moderator are charged to a mold in which polymerization will take place, the improvement wherein said reaction rate moderator comprises: ##STR4## wherein X represents an aryl, alkaryl, or haloaryl group; Y represents an alkyl group or hydrogen and Z represents an alkyl, aralkyl, or cycloalkyl group or hydrogen, and wherein when neither Y nor Z represents hydrogen, X, Y and Z all must represent alkyl groups.
Claim 10
Dependent Claim
38 words
The process of claim 7 wherein said cycloolefin is a monomer selected from the group consisting of dicyclopentadiene, norbornene, norbornadiene, dimethanooctahydronaphthalene, dimethanohexahydronaphthalene and substituted derivatives of said monomers, or a mixture of two or more of said monomers.
Claim 11
Dependent Claim
10 words
The process of claim 8 wherein said cycloolefin is dichclopentadiene.
Claim 12
Dependent Claim
21 words
The process of claim 9 wherein said reaction rate moderator is selected from the group consisting of alkylarylamines and aryl amines.
Claim 13
Dependent Claim
18 words
The process of claim 10 wherein said alkylarylamine is selected from the group consisting of aniline and N-ethylaniline.
Claim 14
Dependent Claim
14 words
The process of claim 7 wherein dichlorodiphenylmethane is added to said methatesis polymerization catalyst.
References Cited (Backward Citations)
US4080491A
Cited
US4727125A
Cited
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