Particulate polyamide, and method for preparing the particulate polyamide
AssigneeRicoh Company, Ltd.
InventorsYoko Arai, Atsumi Yamabe, Koichiro Oyama, Yasuo Kamada
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Abstract
A particulate polyamide is provided. The particulate polyamide is porous and includes at least one of polyamide 4 and polyamide 3. In addition, the particulate polyamide has a particle diameter (d50) of from 10 μm to 1,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents the volume average particle diameter of the particulate polyamide, and Dn represents the number average particle diameter of the particulate polyamide.
Claims20
A particulate polyamide comprising
- polyamide 3, wherein
- the particulate polyamide is porous and has a particle diameter (d50) of from 10 μm to 1,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents a volume average particle diameter of the particulate polyamide and Dn represents a number average particle diameter of the particulate polyamide.
A particulate polyamide comprising at least one of polyamide 4 and polyamide 3, wherein
- the particulate polyamide is porous and has a particle diameter (d50) of from 10 μm to 1,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents a volume average particle diameter of the particulate polyamide and Dn represents a number average particle diameter of the particulate polyamide, and wherein
- the particulate polyamide is a non-spherical particulate polyamide which has a circular form when observed from such a direction that an area of a projected image of the particulate polyamide is maximal while having a non-circular form when observed from such a direction that the area of the projected image of the particulate polyamide is minimal.
A particulate polyamide comprising at least one of polyamide 4 and polyamide 3, wherein
- the particulate polyamide is porous and has a particle diameter (d50) of from 10 μm to 1,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents a volume average particle diameter of the particulate polyamide and Dn represents a number average particle diameter of the particulate polyamide, and wherein
- the particulate polyamide has a shell structure such that a hollow is present in a shell, wherein a ratio of a thickness of the shell to an outer diameter of the particulate polyamide is from 1/10 to ⅓.
Dependencies are inferred from the claim text.