Patent US4397971A successfully refreshed from Google Patents.
US4397971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic plastics containing burr-shaped or fibrous doped polyacetylene particles and process for the production thereof
Assignee: Bayer AG
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Filing: 1982-03-29
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Granted: 1983-08-09
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Expires: 2002-03-29
Abstract
Abstract A process for the production of a thermoplastically processible polymer granulate or powder containing from 0.01 to 50%, by weight, of burr-shaped or fibrous, doped polyacetylene, in which a plastics material and the doped polyacetylene particles are mixed in the presence of an inert suspending liquid and said liquid is removed.
Inventors
- 👤 Jurgen Hocker
- 👤 Rolf Dhein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:43
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; C; C08; C08J; C08J3/00; C08J3/005; C08L; C08L101/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
A process for the production of a thermoplastically processible polymer granulate or powder which contains of from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene which comprises mixing the polymer and the polyacetylene in the presence of an inert suspending liquid and removing said liquid.
Claim 2
Dependent Claim
48 words
A process for the production of a thermoplastically processible polymer granulate or powder which contains of from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene which comprises mixing the polymer and the polyacetylene in the presence of an inert suspending liquid and removing said liquid.
Claim 3
Dependent Claim
41 words
A process for the production of a thermoplastically processible polymer granulate or powder which contains from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which process comprises spray- or freeze-drying a plastics solution containing the doped polyacetylene particles.
Claim 4
Dependent Claim
41 words
A process for the production of a thermoplastically processible polymer granulate or powder which contains from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which process comprises spray- or freeze-drying a plastics solution containing the doped polyacetylene particles.
Claim 5
Dependent Claim
52 words
A process for the production of a thermoplastically processible polymer granulate or powder containing from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which comprises precipitating a plastics solution containing the doped polyacetylene particles using a suitable precipitant and filtering-off the plastics powder together with the doped polyacetylene particles.
Claim 6
Dependent Claim
52 words
A process for the production of a thermoplastically processible polymer granulate or powder containing from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which comprises precipitating a plastics solution containing the doped polyacetylene particles using a suitable precipitant and filtering-off the plastics powder together with the doped polyacetylene particles.
Claim 7
Dependent Claim
52 words
A process for the production of a polymer powder containing from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which comprises adding a plastics which is difficultly soluble in the suspending agent to a suspension containing the doped polyacetylene particles and filtering-off the plastics together with the doped polyacetylene.
Claim 8
Dependent Claim
52 words
A process for the production of a polymer powder containing from 0.01 to 50% by weight of burr-shaped or fibrous, doped polyacetylene, which comprises adding a plastics which is difficultly soluble in the suspending agent to a suspension containing the doped polyacetylene particles and filtering-off the plastics together with the doped polyacetylene.
Claim 9
Dependent Claim
31 words
Solid thermoplastic plastics of granulated material or powders according to claims 1 to 3, which contain from 0.01 to 50% by weight of doped polyacetylene in finely distributed burr- or fibreform.
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) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |