Method of producing powdered polyamide
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsKenichi YAKIGAYA, Ryo MIYATAKE, Yutaro YAMADA, Noko HONDA, Shoji OTANI, Naoyuki KUSUYAMA
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AssigneeAsahi Kasei Kabushiki Kaisha
InventorsKenichi YAKIGAYA, Ryo MIYATAKE, Yutaro YAMADA, Noko HONDA, Shoji OTANI, Naoyuki KUSUYAMA
Estimating the term…
A method of producing powdered polyamide includes: a step 1 of heating and dissolving a polyamide resin composition in a metal chloride alcohol solution containing a metal chloride and an alcohol to obtain a polyamide thermal dissolution liquid; a step 2 of diluting the polyamide thermal dissolution liquid with an alcohol to obtain an alcohol dilution; and a step 3 of cooling the alcohol dilution to cause precipitation of powdered polyamide. The mass proportion of metal chloride relative to 100 mass % of the metal chloride alcohol solution in step 1 is 23 mass % to 35 mass %, the polyamide thermal dissolution liquid contains 0.2 mol to 2.5 mol of water relative to 1 mol of metal chloride in step 1, and the polyamide thermal dissolution liquid is diluted without dropping below a temperature of 50° C. in step 2.
A method of producing powdered polyamide comprising:
A method of producing powdered polyamide comprising:
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Dependencies are inferred from the claim text.