Patent US4102873A successfully refreshed from Google Patents.
US4102873A
Expired / Lapsed
US
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Electrical conducting phthalonitrile polymers
Assignee: United States Department of the Navy
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Filing: 1977-10-20
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Granted: 1978-07-25
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Expires: 1997-10-20
Abstract
Abstract Compounds of the general formula: <IMAGE> <IMAGE> wherein R1 is an isomer of phthalaldehyde; R2 is an isomer of an aromatic dialdehyde selected from the class consisting of phthalaldehyde, naphthalene dialdehyde, phenanthrene dialdehyde, anthracene dialdehyde, biphenyl dialdehyde, terphenyl dialdehyde; and mixtures thereof and R3 is an isomer of an aromatic diamine selected from the class consisting of benzene diamine, naphthalene diamine, phenanthrene diamine, biphenyl diamine, and terphenyl diamine, and the cyano-condensation resins thereof which are useful in preparing semiconductors.
Inventors
- 👤 James R. Griffith
- 👤 Jacques G. O'Rear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08G; C08G73/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
A cyano-condensation resin obtained by heating one or more bisorthodinitriles of the general formula ##STR12## wherein R 2 is an isomer of an aromatic dialdehyde selected from the class consisting of phthalaldehyde, napthalene dialdehyde, phenanthrene dialdehyde, anthracene dialdehyde, diphenyl dialdehyde and terphenyl dialdehyde; and R 3 is an isomer of an aromatic diamine selected from the class consisting of benzene diamine, napthalene diamine, phenanthrene diamine, biphenyl diamine, terphenyl diamine to a temperature above the melting point thereof.
Claim 2
Dependent Claim
77 words
A cyano-condensation resin obtained by heating one or more bisorthodinitriles of the general formula ##STR12## wherein R 2 is an isomer of an aromatic dialdehyde selected from the class consisting of phthalaldehyde, napthalene dialdehyde, phenanthrene dialdehyde, anthracene dialdehyde, diphenyl dialdehyde and terphenyl dialdehyde; and R 3 is an isomer of an aromatic diamine selected from the class consisting of benzene diamine, napthalene diamine, phenanthrene diamine, biphenyl diamine, terphenyl diamine to a temperature above the melting point thereof.
Claim 3
Dependent Claim
18 words
The cyano-condensation resin obtained by heating one or more bisorthodinitriles of claim 1 above the melting point thereof.
Claim 4
Dependent Claim
18 words
The cyano-condensation resin obtained by heating one or more bisorthodinitrile of claim 1 above the melting point thereof.
Claim 5
Dependent Claim
55 words
The cyano-condensation resin obtained by mixing one or more bisorthodinitriles of claim 1 with a metal selected from the class consisting of chromium, molybdenum, vanadium beryllium, silver, mercury, aluminum, tin, lead, antimony, calcium, barium, manganese, magnesium, zinc, copper, iron, cobalt, nickel, palladium, and platinum and heating said mixture above the melting point of said bisorthodinitriles.
Claim 6
Dependent Claim
20 words
The cyano-condensation resin of claim 4 wherein said metal is selected from said class consisting of copper, silver, and aluminum.
Claim 7
Dependent Claim
97 words
The cyano-condensation resin obtained by mixing one or more bisorthodinitrile of claim 1 with a salt from the class consisting of cuprous chloride, cuprous bromide, cuprous cyanide, cuprous ferricyanide, zinc chloride, zinc bromide, zinc iodide, zinc cyanide, ferricyanide, zinc acetate, zinc sulfide, silver chloride, ferrous chloride, ferric chloride, ferrous ferricyanide, ferrous chloroplatinate, ferrous fluoride, ferrous sulfate, cobaltous chloride, cobaltic sulfate, cobaltous cyanide, nickel chloride, nickel cyanide, nickel sulfate, nickel carbonate, stannic chloride, stannous chloride hydrate, a complex of triphenylophosphine oxide and stannous chloride (2TPPO/SnCl 2 ) and heating said mixture above the melting point of said bisorthodinitrile.
Claim 8
Dependent Claim
30 words
The semiconductor resin obtained by heating the cyano-condensation resin of claim 1 to a temperature from 350° C to 500° C for at least 12 hours in an inert atmosphere.
Claim 9
Dependent Claim
29 words
The semiconducting resin obtained by heating the cyano-condensation resin of claim 4 at a temperature from 350° C 500° C for at least 12 hours in an inert atmosphere.
Claim 10
Dependent Claim
30 words
The semiconducting resin obtained by heating the cyano-condensation resin of claim 6 at a temperature from 350° C to 500° C for at least 12 hours in an inert atmosphere.
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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) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |