Production method for polyamide-4 particles
AssigneeNippon Soda Co., Ltd.
InventorNaohiro FUKAWA
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Abstract
A method for producing a polyamide-4 particle that includes polymerizing 2-pyrrolidone in an aprotic solvent incompatible with 2-pyrrolidone in the presence of a polymerization initiator and a 2-pyrrolidone lithium salt or polymerizing 2-pyrrolidone in an aprotic solvent incompatible with 2-pyrrolidone in the presence of a polymerization initiator, a 2-pyrrolidone lithium salt and a 2-pyrrolidone sodium salt. A volume average particle size of the resulting polyamide-4 particle is 1 μm to 100 μm, and a molecular weight distribution (Mw/Mn) of the polyamide-4 particle is 1.0 to 5.0.
Claims16
A method for producing a polyamide-4 particle, comprising polymerizing 2-pyrrolidone in an aprotic solvent incompatible with 2-pyrrolidone in the presence of a polymerization initiator and a 2-pyrrolidone lithium salt.
A method for producing a polyamide-4 particle, comprising polymerizing 2-pyrrolidone in an aprotic solvent incompatible with 2-pyrrolidone in the presence of a polymerization initiator, a 2-pyrrolidone lithium salt and a 2-pyrrolidone sodium salt.
Dependencies are inferred from the claim text.