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US 12,600,754 B2Granted
Protein fiber production method
AssigneeSpiber Inc.
InventorsYunosuke Abe, Hirotada Ando, Koichi Kotaka
Life of this patent
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Abstract
Disclosed is a method for producing a protein fiber, the method including: bringing a spinning dope containing a protein and an organic solvent into contact with a coagulation liquid to coagulate the protein, wherein a content of the protein in the spinning dope is more than 10% by mass based on a total amount of the spinning dope, and the coagulation liquid contains water or an aqueous solution of pH 0.25 or more and pH 10.00 or less.
Claims20
A method for producing a protein fiber, the method comprising:
- contacting a spinning dope containing a protein and an organic solvent with a coagulation liquid to coagulate the protein, wherein
- a content of the organic solvent in the spinning dope is more than 74% by mass based on a total amount of the spinning dope,
- a content of the protein in the spinning dope is more than 10% by mass and 26% by mass or less based on a total amount of the spinning dope,
- the coagulation liquid contains an aqueous solution of pH 0.25 or more and pH 4.00 or less, and
- the aqueous solution includes a mixed solution of a salt aqueous solution and a carboxylic acid aqueous solution.
2 more elements
A method for producing a protein fiber, the method comprising:
- bringing a spinning dope containing a protein and an organic solvent into contact with a coagulation liquid to coagulate the protein, wherein
- a content of the protein in the spinning dope is more than 10% by mass based on a total amount of the spinning dope,
- the coagulation liquid contains an aqueous solution of pH 0.25 or more and pH 4.00 or less, and
- the aqueous solution includes a mixed solution of a salt aqueous solution and a carboxylic acid aqueous solution.
1 more element
Dependencies are inferred from the claim text.