US4419277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated polyacetylene
Assignee: Rohm and Haas Co
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Filing: 1981-03-23
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Granted: 1983-12-06
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Expires: 2001-03-23
Abstract
Abstract A process for reducing doped polyacetylene crosslinking and embrittlement comprises treating the polyacetylene with a material selected from the class consisting of (a) hindered phenols; (b) alkyl ethers of hydroquinone, wherein the alkyl group has from 1 to about 12 carbon atoms; and (c) dialkyl thiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different. A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement contains a doped polyacetylene and a material, as defined above, associated with said doped polyacetylene.
Inventors
- 👤 Robert M. Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:07
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/065; C08J9/00; C08J9/36; C08J9/40; C08J2349/00
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
110 words
A process for reducing doped polyacetylene crosslinking and embrittlement comprising treating said polyacetylene with a material selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone, wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkyl thiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
Claim 2
Dependent Claim
110 words
A process for reducing doped polyacetylene crosslinking and embrittlement comprising treating said polyacetylene with a material selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone, wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkyl thiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
Claim 3
Dependent Claim
18 words
A process according to claim 1 wherein said polyacetylene is either p-doped, n-doped or has a p-n junction.
Claim 4
Dependent Claim
14 words
A process according to claim 1 wherein said material is dissolved in a solvent.
Claim 5
Dependent Claim
23 words
A process according to claim 3 wherein said solution is at least a 10% solution, by weight, of said material in said solvent.
Claim 6
Dependent Claim
12 words
A process according to claim 1 wherein said polyacetylene is a film.
Claim 7
Dependent Claim
12 words
A process according to claim 1 wherein said polyacetylene is a powder.
Claim 8
Dependent Claim
25 words
A process according to claim 1 wherein said polyacetylene is treated with said material for a period of time of at least about 8 hours.
Claim 9
Dependent Claim
27 words
A process according to claim 1 wherein said polyacetylene is treated with said material for a period of time of from about 8 to about 24 hours.
Claim 10
Dependent Claim
23 words
A process according to claim 1 wherein said polyacetylene is treated with said material until said polyacetylene no longer absorbs any additional material.
Claim 11
Dependent Claim
19 words
A process according to claim 1 wherein said polyacetylene is treated with said material at ambient temperature and pressure.
Claim 12
Dependent Claim
15 words
A process according to claim 1 wherein said material is the methyl ether of hydroquinone.
Claim 13
Dependent Claim
12 words
A process according to claim 1 wherein said material is nickel-bis[O-ethyl(3,5-di-t-butyl-4 hydroxybenzyl)]phosphonate.
Claim 14
Dependent Claim
12 words
A process according to claim 1 wherein said material is 4-dodecyloxy-2 hydroxybenzophenone.
Claim 15
Dependent Claim
11 words
A process according to claim 1 wherein said material is 2,6-di-t-butyl-4-methylphenol.
Claim 16
Dependent Claim
12 words
A process according to claim 1 wherein said material is octadecyl-3-(3,5-di-t-butyl-4 hydroxyphenyl)propionate.
Claim 17
Dependent Claim
17 words
A process for reducing doped polyacetylene crosslinking and embrittlement comprising treating said doped polyacetylene with distearyl thiodipropionate.
Claim 18
Dependent Claim
17 words
A process for reducing doped polyacetylene crosslinking and embrittlement comprising treating said doped polyacetylene with distearyl thiodipropionate.
Claim 19
Dependent Claim
118 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising doped polyacetylene and a material associated with said polyacetylene, said material being selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkylthiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
Claim 20
Dependent Claim
118 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising doped polyacetylene and a material associated with said polyacetylene, said material being selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkylthiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
Claim 21
Dependent Claim
12 words
A composition according to claim 17 wherein said polyacetylene is a film.
Claim 22
Dependent Claim
12 words
A composition according to claim 17 wherein said polyacetylene is a powder.
Claim 23
Dependent Claim
13 words
A composition according to claim 17 wherein said polyacetylene is a foamed material.
Claim 24
Dependent Claim
15 words
A composition according to claim 17 wherein said material is the methyl ether of hydroquinone.
Claim 25
Dependent Claim
12 words
A composition according to claim 17 wherein said material is nickel-bis[O-ethyl(3,5-di-t-butyl-4 hydroxybenzyl)]phosphonate.
Claim 26
Dependent Claim
12 words
A composition according to claim 17 wherein said material is 4-dodecyloxy-2 hydroxybenzophenone.
Claim 27
Dependent Claim
11 words
A composition according to claim 17 wherein said material is 2,6-di-t-butyl-4-methylphenol.
Claim 28
Dependent Claim
12 words
A composition according to claim 17 wherein said material is octadecyl-3-(3,5-di-t-butyl-4 hydroxyphenyl)propionate.
Claim 29
Dependent Claim
18 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising doped polyacetylene and distearyl thiodipropionate.
Claim 30
Dependent Claim
18 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising doped polyacetylene and distearyl thiodipropionate.
Claim 31
Dependent Claim
117 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising polyacetylene and a material associated with said polyacetylene, said material being selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkylthiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
Claim 32
Dependent Claim
117 words
A doped polyacetylene composition exhibiting enhanced resistance to polyacetylene crosslinking and embrittlement comprising polyacetylene and a material associated with said polyacetylene, said material being selected from the class consisting of: (a) hindered phenols having at least one alkyl or alkoxy group of from about 4 to about 12 carbon atoms, said alkyl or alkoxy group being in a position ortho and/or para to the hydroxy group on the benzene ring; (b) alkyl ethers of hydroquinone wherein said alkyl group has from 1 to about 12 carbon atoms; and (c) dialkylthiodipropionates wherein each of said alkyl groups has from 1 to about 18 carbon atoms and each alkyl group may be the same or different; and mixtures thereof.
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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |