FR2006677A1 - Polyaminoacid solutions in tetrachloroethane - Google Patents
Polyaminoacid solutions in tetrachloroethaneInfo
- Publication number
- FR2006677A1 FR2006677A1 FR6912481A FR6912481A FR2006677A1 FR 2006677 A1 FR2006677 A1 FR 2006677A1 FR 6912481 A FR6912481 A FR 6912481A FR 6912481 A FR6912481 A FR 6912481A FR 2006677 A1 FR2006677 A1 FR 2006677A1
- Authority
- FR
- France
- Prior art keywords
- polyaminoacid
- tetrachloroethane
- mol
- solutions
- polyaminoacids
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Artificial Filaments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The solutions consist of film- and fibre-forming polyaminoacids dissolved in tetrachloroethane, chlorobenzene and/or nitrobenzene. The polyaminoacids are homopolymers, polymer blends or copolymers of a L-, D- or DL-aminoacid, and have a mol. wt. above 10000, for example poly-gamma-methyl-L-glutamate of mol. wt. 100,000-1,000,000. The compositions are prepared by adding a solvent which is a poor solvent for the polyaminoacid (such as an aliphatic alcohol, ketone or ether) to a polyaminoacid polymerisation solution (pref. containing ethylene dichloride) in order to precipitate the polyaminoacid; and then dissolving the precipitate in tetrachloroethane, chlorobenzene and/or nitrobenzene, pref. at 70 deg.C. The solutions contain polymers of desired mol. wt. range, giving spun or extruded objects with improved quality.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2662268 | 1968-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2006677A1 true FR2006677A1 (en) | 1970-01-02 |
Family
ID=12198556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6912481A Withdrawn FR2006677A1 (en) | 1968-04-22 | 1969-04-21 | Polyaminoacid solutions in tetrachloroethane |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1919786A1 (en) |
| FR (1) | FR2006677A1 (en) |
-
1969
- 1969-04-18 DE DE19691919786 patent/DE1919786A1/en active Pending
- 1969-04-21 FR FR6912481A patent/FR2006677A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE1919786A1 (en) | 1969-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |