Method for producing polyamide 4 particles
AssigneeNippon Soda Co., Ltd.
InventorNaohiro FUKAWA
Life of this patent
Estimating the term…
Abstract
The present invention aims to provide a new method for producing polyamide 4 particles. The method for producing polyamide 4 particles of the present invention comprises mixing an emulsified liquid (D) obtained by mixing a solution (B) obtained by dissolving polyamide 4 in a good solvent (A) for polyamide 4 and a solvent (C) which is incompatible with the solution (B), and a solvent (E) which is a poor solvent for polyamide 4 and is compatible with the good solvent (A) and the solvent (C). The above emulsified liquid (D) may further comprise a surfactant, and the volume average diameter of the obtained polyamide 4 particles is usually in the range of 10 μm to 500 μm.
Claims4
A method for producing polyamide 4 particles comprising:
- mixing an emulsified liquid (D) obtained by mixing a solution (B) obtained by dissolving polyamide 4 in a good solvent (A) for polyamide 4 and a solvent (C) which is incompatible with the solution (B),
- with a solvent (E) which is a poor solvent for polyamide 4 and is compatible with the good solvent (A) and the solvent (C).
Dependencies are inferred from the claim text.