US3933722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meet extrudable polyacetylene copolymer blends
Assignee: General Electric Co
•
Filing: 1974-08-15
•
Granted: 1976-01-20
•
Expires: 1994-08-15
Abstract
Abstract A method of making polyacetylene extrudate is described involving the extrusion of a mixture of a polyacetylene and an organic solvent. The resulting extrudate can be heat treated to form carbonaceous products. The polyacetylene extrudate experiences an increase in strength to weight ratio upon heating to elevated temperatures. It is convertible to the high strength graphitized state.
Inventors
- 👤 Charles M. Krutchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:16
CPC Classifications
C; C08; C08L; C08L49/00; D; D01; D01F; D01F6/00; D01F6/02; D01F9/00; D01F9/08; D01F9/12; D01F9/14; D01F9/20; D01F9/21
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80 to 50% of organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a terpolymer consisting essentially of i. 74 to 86 mole percent of meta-diethynylbenzene units, ii. 4 to 9 mole percent of para-diethynylbenzene units, iii. 5 to 15 mole percent of diethynylalkane units, where the sum of (i), (ii) and (iii) units are 100 mole percent.
Claim 2
Dependent Claim
149 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80 to 50% of organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a terpolymer consisting essentially of i. 74 to 86 mole percent of meta-diethynylbenzene units, ii. 4 to 9 mole percent of para-diethynylbenzene units, iii. 5 to 15 mole percent of diethynylalkane units, where the sum of (i), (ii) and (iii) units are 100 mole percent.
Claim 3
Dependent Claim
163 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80% to 50% of organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a tetrapolymer consisting essentially of about 5% by weight of acetylene units, and 95% by weight of a mixture of 100 mole percent of chemically combined units in the proportion of from 85 to 92 mole percent of meta-diethynylbenzene units 4 to 10 mole percent of paradiethynylbenzene units and 2 to 6 mole percent of bisphenol dipropargyl ether units.
Claim 4
Dependent Claim
163 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80% to 50% of organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a tetrapolymer consisting essentially of about 5% by weight of acetylene units, and 95% by weight of a mixture of 100 mole percent of chemically combined units in the proportion of from 85 to 92 mole percent of meta-diethynylbenzene units 4 to 10 mole percent of paradiethynylbenzene units and 2 to 6 mole percent of bisphenol dipropargyl ether units.
Claim 5
Dependent Claim
161 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80% to 50% or organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a tetrapolymer consisting essentially of about 5% by weight of acetylene units, and 95% by weight of a mixture of 100 mole percent of chemically combined diethynyl-organo units in the proportion of 74 to 86 mole percent of metadiethynylbenzene units, 4 to 9 mole percent of paradiethynylbenzene units and 5 to 15 mole percent of diethynyl-alkane units.
Claim 6
Dependent Claim
161 words
Polyacetylene blends which are melt extrudable at temperatures of from 100°C to 180°C, comprising by weight (A) from 20% to 50% by weight polyacetylene having an intrinsic viscosity of 0.5 to 1.5 in orthodichlorobenzene at 120°C, and (B) from 80% to 50% or organic solvent selected from the class consisting of paradichlorobenzene, ortho-dichlorobenzene, nitrobenzene, and halogenated aryl hydrocarbons having an average weight percent of chlorine from about 12 to 75% based on the total weight of halogen, carbon and hydrogen where said blends can be in the form of a free flowing powder, a wet granulated mixture, or paste and where the polyacetylene is a tetrapolymer consisting essentially of about 5% by weight of acetylene units, and 95% by weight of a mixture of 100 mole percent of chemically combined diethynyl-organo units in the proportion of 74 to 86 mole percent of metadiethynylbenzene units, 4 to 9 mole percent of paradiethynylbenzene units and 5 to 15 mole percent of diethynyl-alkane units.
Claim 7
Dependent Claim
13 words
A blend in accordance with claim 1, where the organic solvent is ortho-dichlorobenzene.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |