US4454178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(acetylene) films and their production
Assignee: BASF SE
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Filing: 1982-10-29
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Granted: 1984-06-12
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Expires: 2002-10-29
Abstract
Abstract Poly(acetylene) films are produced by polymerization of acetylene, if appropriate mixed with a di- and/or poly(alkyne), in the presence of an active transition metal catalyst on filaments, fibers, woven or knitted fabrics, nonwovens, laid webs, interlaced structures or nets composed of metals, glass or natural and/or synthetic fibers.
Inventors
- 👤 Herbert Naarmann
- 👤 Dieter Naegele
- 👤 Klaus Penzien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:12
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/02; C; C08; C08F; C08F38/00; C08F38/02; D06M14/08; D06M14/10; D06M14/12; D06M14/14; D06M14/16; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/131; Y10T442/20; Y10T442/2033; Y10T442/2762; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A process for the production of reinforced poly(acetylene) film which comprises the following steps in sequence: (a) impregnating a firm, fibrous, base material consisting of filaments, fibers, woven or knitted fabrics, non-wovens, laid webs, interlaced structures or nets with an active transition metal polymerization catalyst; (b) contacting said catalyst impregnated, base material with acetylene gas or a gaseous mixture of acetylene with di- and/or a polyalkyne wherein a polymeric film of poly(acetylene) is caused to form onto, and to bond firmly with, said base material; (c) treating the resulting reinforced, film product with a solvent to extract said polymerization catalyst therefrom, and thereafter; (d) drying said product to remove the solvent residue therefrom.
Claim 2
Dependent Claim
113 words
A process for the production of reinforced poly(acetylene) film which comprises the following steps in sequence: (a) impregnating a firm, fibrous, base material consisting of filaments, fibers, woven or knitted fabrics, non-wovens, laid webs, interlaced structures or nets with an active transition metal polymerization catalyst; (b) contacting said catalyst impregnated, base material with acetylene gas or a gaseous mixture of acetylene with di- and/or a polyalkyne wherein a polymeric film of poly(acetylene) is caused to form onto, and to bond firmly with, said base material; (c) treating the resulting reinforced, film product with a solvent to extract said polymerization catalyst therefrom, and thereafter; (d) drying said product to remove the solvent residue therefrom.
Claim 3
Dependent Claim
22 words
A process as set forth in claim 1, wherein the base is composed of glass or natural and/or synthetic fibers and/or filaments.
Claim 4
Dependent Claim
16 words
A process as set forth in claim 1, wherein the base consists of a wire cloth.
References Cited (Backward Citations)
US1950430A
Cited
US4097460A
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US4070333A
Cited
US4006113A
Cited
US4026859A
Cited
US4277588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |