	US 11,807,717 B2
	Method of producing polyamide fine particles, and polyamide fine particles
Itaru Asano, Nagoya (JP)
Assigned to Toray Industries, Inc., Tokyo (JP)
Filed by Toray Industries, Inc., Tokyo (JP)
Filed on Sep. 28, 2022, as Appl. No. 17/955,169.
Application 17/955,169 is a division of application No. 16/606,837, granted, now 11,485,822, previously published as PCT/JP2018/017616, filed on May 7, 2018.
Claims priority of application No. 2017-095286 (JP), filed on May 12, 2017; and application No. 2018-014437 (JP), filed on Jan. 31, 2018.
Prior Publication US 2023/0034929 A1, Feb. 2, 2023
Int. Cl. C08G 69/26 (2006.01); C08G 69/16 (2006.01); C08G 69/46 (2006.01); C08G 69/08 (2006.01); C08J 3/12 (2006.01)

CPC C08G 69/16 (2013.01) [C08G 69/08 (2013.01); C08G 69/26 (2013.01); C08G 69/46 (2013.01); C08J 3/12 (2013.01)]

3 Claims

1. Polyamide fine particles having a number average particle size of 0.1 to 100 um, a sphericity of 90 or more, a particle size distribution index of 3.0 or less, a linseed oil absorption of 100 mL/100 g or less, and a crystallization temperature of 150° C. or more, wherein polyamide constituting the polyamide fine particles is any one selected from polyamide 6, polyamide 66, and a copolymer thereof.