US4100338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing solid polymers of norbornadiene
Assignee: Sunoco Inc R&M
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Filing: 1977-08-31
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Granted: 1978-07-11
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Expires: 1997-08-31
Abstract
Abstract Norbornadiene is catalytically polymerized to a solid white polymer in the presence of a catalytic system of nickel acetylacetonate or a nickel-phosphine complex and an alkyl aluminum chloride. The polymer can be used as a solid high energy fuel.
Inventors
- 👤 George Suld
- 👤 Abraham Schneider
- 👤 Harry K. Myers, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:49
CPC Classifications
C; C08; C08F; C08F32/00; C08F32/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
Process for preparing solid polymer of norbornadiene comprising: (a) contacting norbornadiene in the presence of a catalytic amount of a homogeneous catalytic system of nickel acetylacetonate or a nickel-phosphine complex selected from the group consisting of nickel dihalide bis(tributylphosphine); nickel dihalide bis(tricyclohexylphosphine); nickel dihalide bis(triphenylphosphine); isopropyl triphenyl phosphonium nickel dihalide bromide triphenylphosphine; nickel dicarbonyl bis(triphenylphosphine); nickel dibromide bis(trisphenylphosphine); nickel acetylacetonate hydrate-1,2 bisdiphenylphosphino ethane and wherein the halide is selected from the group consisting of fluoride, chloride and bromide; and an alkyl aluminum chloride selected from the group consisting of diethyl aluminum chloride, ethyl aluminum dichloride and ethyl aluminum sesquichloride; (b) having the contacting occurring at a temperature within the range between from about -40° C to about 120° C; and (c) continuing the contacting until the solid polymer of norbornadiene is prepared.
Claim 2
Dependent Claim
132 words
Process for preparing solid polymer of norbornadiene comprising: (a) contacting norbornadiene in the presence of a catalytic amount of a homogeneous catalytic system of nickel acetylacetonate or a nickel-phosphine complex selected from the group consisting of nickel dihalide bis(tributylphosphine); nickel dihalide bis(tricyclohexylphosphine); nickel dihalide bis(triphenylphosphine); isopropyl triphenyl phosphonium nickel dihalide bromide triphenylphosphine; nickel dicarbonyl bis(triphenylphosphine); nickel dibromide bis(trisphenylphosphine); nickel acetylacetonate hydrate-1,2 bisdiphenylphosphino ethane and wherein the halide is selected from the group consisting of fluoride, chloride and bromide; and an alkyl aluminum chloride selected from the group consisting of diethyl aluminum chloride, ethyl aluminum dichloride and ethyl aluminum sesquichloride; (b) having the contacting occurring at a temperature within the range between from about -40° C to about 120° C; and (c) continuing the contacting until the solid polymer of norbornadiene is prepared.
Claim 3
Dependent Claim
21 words
Process according to claim 1 wherein the temperature is within the range between from about -20° C to about 100° C.
Claim 4
Dependent Claim
10 words
Process according to claim 1 wherein a solvent is present.
Claim 5
Dependent Claim
21 words
Process according to claim 3 wherein the temperature is within the range between from about -20° C to about 100° C.
Claim 6
Dependent Claim
25 words
Process according to claim 1 wherein the norbornadiene to nickel acetylacetonate or nickel phosphine complex mole ratio is between from about 10 to about 2000.
Claim 7
Dependent Claim
27 words
Process according to claim 1 wherein the alkyl aluminum chloride to nickel acetylacetonate or nickel phosphine complex mole ratio is between from about 0.5 to about 100.
Claim 8
Dependent Claim
10 words
Process according to claim 6 wherein a solvent is present.
Claim 9
Dependent Claim
25 words
Process according to claim 7 wherein the solvent is selected from group consisting of aromatic hydrocarbons, cycloparaffins, ethers, halogenated aromatics, halogenated paraffins and halogenated cycloparaffins.
Claim 10
Dependent Claim
25 words
Process according to claim 8 wherein the norbornadiene to nickel acetylacetonate or nickel phosphine complex mole ratio is between from about 10 to about 2000.
Claim 11
Dependent Claim
27 words
Process according to claim 9 wherein the alkyl aluminum chloride to nickel acetylacetonate or nickel phosphine complex mole ratio is between from about 0.5 to about 100.
Claim 12
Dependent Claim
21 words
Process according to claim 10 wherein the temperature is in the range between from about 0° C to about 80° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |