US4410640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a gel-like composition of a high polymer of acetylene, and process for molding said composition
Assignee: Resonac Holdings Corp
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Filing: 1981-09-11
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Granted: 1983-10-18
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Expires: 2001-09-11
Abstract
Abstract Process for producing a porous acetylene high polymer by lyophilizing a gel-like composition composed of 1 part by weight of an acetylene high polymer having a fibril structure and 1 to 1,000 parts by weight of an organic solvent.
Inventors
- 👤 Yukio Kobayashi
- 👤 Hideki Shirakawa
- 👤 Sakuji Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/003; H01C7/005; C; C08; C08F; C08F38/00; C08F38/02; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/125; H10; H10K; H10K85/00; H10K85/10; H10K85/141; H10K85/143; H10K30/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
174 words
A process for producing a porous acetylene high polymer, which comprises lyophilizing a gel-like composition composed of 1 part by weight of an acetylene high homopolymer having a fibril structure and 1 to 1,000 parts by weight of an organic solvent, said gel-like composition being a member selected from the group consisting of (1) a product prepared by polymerizing acetylene in a polymerization solvent containing a catalyst system composed of (A) a transition metal compound containing at least one transition metal selected from transition metals of Groups IVa, Va, VIa and VIII of the periodic table and (B) an organometallic compound containing at least one metal selected from metals of Groups IIa, IIb, IIIb and IVb of the periodic table, the concentration of the transition metal compound being 0.0001 to 0.1 mole per liter of the polymerization solvent, and (2) a product in which all or a major portion of the polymerization solvent in the product of said (1) is replaced by an organic solvent having a freezing point of -50° to 50° C.
Claim 2
Dependent Claim
174 words
A process for producing a porous acetylene high polymer, which comprises lyophilizing a gel-like composition composed of 1 part by weight of an acetylene high homopolymer having a fibril structure and 1 to 1,000 parts by weight of an organic solvent, said gel-like composition being a member selected from the group consisting of (1) a product prepared by polymerizing acetylene in a polymerization solvent containing a catalyst system composed of (A) a transition metal compound containing at least one transition metal selected from transition metals of Groups IVa, Va, VIa and VIII of the periodic table and (B) an organometallic compound containing at least one metal selected from metals of Groups IIa, IIb, IIIb and IVb of the periodic table, the concentration of the transition metal compound being 0.0001 to 0.1 mole per liter of the polymerization solvent, and (2) a product in which all or a major portion of the polymerization solvent in the product of said (1) is replaced by an organic solvent having a freezing point of -50° to 50° C.
Claim 3
Dependent Claim
40 words
The process for producing a porous acetylene high polymer set forth in claim 1 wherein the organic solvent is benzene, ortho-dichlorobenzene, cyclohexanone, benzyl alcohol, benzonitrile, diethylene glycol, methyl salicylate, formamide, nitrobenzene, cyclohexane, formic acid, dioxane, m-cresol, p-xylene or acetic acid.
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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |