Patent US4384090A successfully refreshed from Google Patents.
US4384090A
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Process for producing polyacetylene
Assignee: Bayer AG
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Filing: 1981-07-31
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Granted: 1983-05-17
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Expires: 2001-07-31
Abstract
Abstract Process for the production of polyacetylene, wherein acetylene is polymerized in an organic diluent with the aid of an organometallic mixed catalyst based on a vanadium compound of the formula ##STR1## wherein R 1 represents halogen (chlorine), R 2 and R 3 represent halogen (chlorine), OR 5 (R 5 =C 1 -C 20 alkyl, straight chain, cyclic or branched), whereby R 2 and R 3 may be the same or different, and on an luminium alkyl compound.
Inventors
- 👤 Jurgen Hocker
- 👤 Wolfgang Wieder
- 👤 Rudolf Merten
- 👤 Josef Witte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:27
CPC Classifications
C; C08; C08F; C08F38/00; C08F38/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
Process for the production of polyacetylene, wherein acetylene is polymerized in an organic diluent, in the presence of an organometallic mixed catalyst which comprises (a) a vanadium compound of the formula ##STR4## wherein R 1 represents halogen; R 2 and R 3 may be the same or different and represent halogen or OR 5 wherein R 5 is C 1 -C 20 alkyl which is straight chain, cyclic or branched; and (b) an aluminium alkyl compound.
Claim 2
Dependent Claim
76 words
Process for the production of polyacetylene, wherein acetylene is polymerized in an organic diluent, in the presence of an organometallic mixed catalyst which comprises (a) a vanadium compound of the formula ##STR4## wherein R 1 represents halogen; R 2 and R 3 may be the same or different and represent halogen or OR 5 wherein R 5 is C 1 -C 20 alkyl which is straight chain, cyclic or branched; and (b) an aluminium alkyl compound.
Claim 3
Dependent Claim
10 words
Process according to claim 1 wherein R 1 is chloro.
Claim 4
Dependent Claim
13 words
Process according to claim 1 wherein R 2 or R 3 represent chloro.
Claim 5
Dependent Claim
12 words
The process according to claim 1 wherein the vanadium compound is ##STR5##
Claim 6
Dependent Claim
18 words
The process according to claim 1 wherein the aluminum alkyl is triethyl aluminum, triisobutyl aluminum or trioctyl aluminum.
Claim 7
Dependent Claim
10 words
The process according to claim 1 wherein halogen is chloro.
Claim 8
Dependent Claim
26 words
The process according to claim 1 wherein the organic diluent is selected from the group consisting of benzene, toluene, hexane, tetralin, decalin, methylene chloride and chlorobenzene.
Claim 9
Dependent Claim
26 words
The process according to claim 1 wherein the mixed catalyst contains 0.05 to 0.2 moles vanadium compound per 0.1 to 20 moles of aluminum alkyl compound.
Claim 10
Dependent Claim
25 words
The process according to claim 1 wherein the product polyacetylene is precipitated in particulate form and the particles are compacted into a film or foil.
References Cited (Backward Citations)
FR1149218A
Cited
US3119799A
Cited
US3205205A
Cited
US3299016A
Cited
US3674755A
Cited
US4173698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |