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US4127710A
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Copolymerization of a 1,3-cyclodiene and a linear conjugated diene
Assignee: Phillips Petroleum Co
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Filing: 1974-10-02
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Granted: 1978-11-28
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Expires: 1994-10-02
Abstract
Abstract A 1,3-cyclodiene comonomer and a linear conjugated diene comonomer are copolymerized employing a catalyst formed from a mixture comprising a triorganoaluminum compound, a nickel (II) compound and a Friedel-Crafts type cocatalyst. Also, a catalyst and a method for the production thereof which is useful in the copolymerization is provided.
Inventors
- 👤 Henry L. Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:40
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/045; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
A method comprising: copolymerizing a 1,3-cyclodiene comonomer and a linear conjugated diene comonomer in the presence of a catalyst formed from a mixture comprising (a) a triorganoaluminum compound represented by the general formula R 3 "Al wherein R" is a hydrocarbon radical containing from 1 to 20 carbon atoms selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, and mixtures thereof; (b) a nickel (II) compound; and (c) a Friedel-Crafts type Lewis acid cocatalyst wherein the amount of the triorganoaluminum compound is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, the amount of the Friedel-Crafts type cocatalyst is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, and the amount of nickel (II) compound is in the range of from about 0.05 to 50 millimoles per hundred grams of total comonomer.
Claim 2
Independent Claim
150 words
A method comprising: copolymerizing a 1,3-cyclodiene comonomer and a linear conjugated diene comonomer in the presence of a catalyst formed from a mixture comprising (a) a triorganoaluminum compound represented by the general formula R 3 "Al wherein R" is a hydrocarbon radical containing from 1 to 20 carbon atoms selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, and mixtures thereof; (b) a nickel (II) compound; and (c) a Friedel-Crafts type Lewis acid cocatalyst wherein the amount of the triorganoaluminum compound is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, the amount of the Friedel-Crafts type cocatalyst is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, and the amount of nickel (II) compound is in the range of from about 0.05 to 50 millimoles per hundred grams of total comonomer.
Claim 3
Dependent Claim
174 words
The method of claim 1 wherein the triorganoaluminum compound is selected from the group consisting of trimethylaluminum, triethylaluminum, tri-n-butylaluminum, triisobutylaluminum, tri-n-hexylaluminum, tri-n-dodecylaluminum, tri-n-eicosylaluminum, tricyclohexylaluminum, triphenylaluminum, methyldiphenylaluminum, ethyldi(3,5-di-n-heptylphenyl)aluminum, tribenzylaluminum, tris(1-naphthyl)aluminum, di-n-octylphenylaluminum and tris-4-tolylaluminum; wherein the nickel (II) compound is selected from the group consisting of nickel octoate, nickel stearate, nickel oleate, nickel naphthenate, nickel acetylacetonate, nickel benzoylacetonate, and dicyclopentadienyl nickel; wherein the Friedel-Crafts type cocatalyst is selected from the group consisting of boron trifluoride, boron trifluoride etherate, aluminum chloride, stannic chloride, aluminum bromide, aluminum sesquichloride, sulfuric acid and hydrogen fluoride; wherein the amount of the triorganoaluminum compound is in the range of from about 0.8 to 20 moles per mole of the nickel (II) compound, the amount of the Friedel-Crafts type cocatalyst is in the range of from about 1 to 20 moles per mole of the nickel (II) compound, and the total amount of catalyst present during the copolymerization based on the amount of nickel (II) compound is in the range of from about 0.5 to 10 millimoles per hundred grams of total comonomer.
Claim 4
Dependent Claim
26 words
The method of claim 1 wherein the copolymerization is carried out in the presence of a hydrocarbon diluent which is not detrimental to the copolymerization process.
Claim 5
Dependent Claim
33 words
The method of claim 1 wherein the linear conjugated diene comonomer and the Friedel-Crafts type cocatalyst are added to a mixture comprising the nickel (II) compound, the triorganoaluminum compound and the 1,3-cyclodiene comonomer.
Claim 6
Dependent Claim
105 words
The method of claim 1 wherein the 1,3-cyclodiene comonomer is represented by the general formula ##STR2## wherein R is a hydrogen, methyl or ethyl, R' is a hydrogen, linear or branched alkyl, cycloalkyl, or aryl such that the maximum number of carbon atoms per R' group is about 6, n is 1 or 2, and the total number of carbon atoms in the comonomer ranges from about 5 to 20; wherein the total number of carbon atoms in the linear conjugated diene comonomer ranges from about 4 to 12; and wherein the linear conjugated diene to 1,3-cyclodiene weight ratio ranges from about 1:99 to 99:1.
Claim 7
Dependent Claim
37 words
The method of claim 5 wherein the number of carbon atoms in the linear conjugated diene comonomer ranges from about 4 to 8 and the linear conjugated diene to 1,3-cyclodiene comonomer ranges from about 95:5 to 40:60.
Claim 8
Dependent Claim
39 words
The method of claim 6 wherein the 1,3-cyclodiene comonomer is 1,3-cyclohexadiene, the linear conjugated diene comonomer is 1,3-butadiene, the triorganoaluminum compound is triisobutylaluminum, the nickel (II) compound is nickel naphthenate, and the Friedel-Crafts type cocatalyst is boron trifluoride etherate.
Claim 9
Dependent Claim
14 words
The method of claim 7 wherein the copolymer produced is basically a random copolymer.
Claim 10
Independent Claim
255 words
A method comprising: copolymerizing a 1,3-cyclodiene comonomer and a linear conjugated diene comonomer in the presence of a catalyst formed from a mixture comprising (a) a triorganoaluminum compound represented by the general formula R 3 "Al wherein R" is a hydrocarbon radical containing from 1 to 20 carbon atoms selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, and mixtures thereof; (b) a nickel (II) compound; and (c) a Friedel-Crafts type Lewis acid cocatalyst wherein the amount of the triorganoaluminum compound is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, the amount of the Friedel-Crafts type cocatalyst is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, and the amount of nickel (II) compound is in the range of from about 0.05 to 50 millimoles per hundred grams of total comonomer, wherein the linear conjugated diene comonomer and the Friedel-Crafts type cocatalysts are added to a mixture comprising the nickel (II) compound and the triorganoaluminum compound wherein the mixture is aged from about 2 minutes to 5 hours, at a temperature in the range of from about 0° to 100° C. prior to adding the linear conjugated diene comonomer and the Friedel-Crafts type cocatalyst to said mixture, and said 1,3-cyclodiene is added prior to, during or after formation of the reduced nickel (II) compound by aging the mixture, but the reduced nickel II compound is contacted with the 1,3-cyclodiene prior to contacting the conjugated diene comonomer.
Claim 11
Independent Claim
255 words
A method comprising: copolymerizing a 1,3-cyclodiene comonomer and a linear conjugated diene comonomer in the presence of a catalyst formed from a mixture comprising (a) a triorganoaluminum compound represented by the general formula R 3 "Al wherein R" is a hydrocarbon radical containing from 1 to 20 carbon atoms selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, and mixtures thereof; (b) a nickel (II) compound; and (c) a Friedel-Crafts type Lewis acid cocatalyst wherein the amount of the triorganoaluminum compound is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, the amount of the Friedel-Crafts type cocatalyst is in the range of from about 0.5 to 30 moles per mole of the nickel (II) compound, and the amount of nickel (II) compound is in the range of from about 0.05 to 50 millimoles per hundred grams of total comonomer, wherein the linear conjugated diene comonomer and the Friedel-Crafts type cocatalysts are added to a mixture comprising the nickel (II) compound and the triorganoaluminum compound wherein the mixture is aged from about 2 minutes to 5 hours, at a temperature in the range of from about 0° to 100° C. prior to adding the linear conjugated diene comonomer and the Friedel-Crafts type cocatalyst to said mixture, and said 1,3-cyclodiene is added prior to, during or after formation of the reduced nickel (II) compound by aging the mixture, but the reduced nickel II compound is contacted with the 1,3-cyclodiene prior to contacting the conjugated diene comonomer.
Claim 12
Dependent Claim
46 words
The method of claim 9 wherein said mixture is aged from about 10 minutes to 2 hours at a temperature in the range of from about 25° to 70° C. prior to adding the linear conjugated diene comonomer and the Friedel-Crafts type cocatalyst to said mixture.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |