# US 4,397,971 A · Thermoplastic plastics containing burr-shaped or fibrous doped polyacetylene particles and process for the production thereof

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- Number: US 4,397,971 A
- Document ID: US4397971A
- Status: Granted
- Kind: A
- Application number: 06/362,999
- Filed: 1982-03-29
- Granted: 1983-08-09
- Earliest claimed: 1981-04-02
- Assignees: Bayer Aktiengesellschaft
- Inventors: Jurgen Hocker; Rolf Dhein
- Web page: https://patentgrep.com/patent/US4397971A

## CPC

- D01F 6/02: from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08J 3/005: {Processes for mixing polymers}
- C08L 101/00: Compositions of unspecified macromolecular compounds
- D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## 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.

## Claims

### Claim 1

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

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 3

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 4

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 5 (depends on 1, 2, 3)

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.