公开(公告)号：US20190275587A1

公开(公告)日：2019-09-12

申请号：US16302917

申请日：2017-06-07

Applicant: Konica Minolta, Inc.

Inventor： Masahiro MATSUOKA ,  Ayumi YONEZAKI

IPC: B22F3/105 ,  B22F1/02 ,  B22F9/02

Abstract: The present invention is aimed to provide a powder material for the powder bed fusion method, the powder material enabling higher modeling speed and higher manufacturing precision. The present invention relates to a powder material containing a plurality of composite particles. The composite particles contain metal base particles having a number average particle diameter of 20-60 μm inclusive and low-heat-conductivity particles that adhere in an insular form to the surfaces of the base particles and that have a number average particle diameter of 100-300 nm inclusive. The heat conductivity of the low-heat-conductivity particles at 100° C. is 35.0 W/K·m or less, and the heat conductivity of the low-heat-conductivity particles at 100° C. is lower than the heat conductivity of a metal material at 100° C. contained as a main constituent of the metal base particles.

公开(公告)号：US20140287354A1

公开(公告)日：2014-09-25

申请号：US14215721

申请日：2014-03-17

Applicant: Konica Minolta, Inc.

Inventor： Takaki KAWAMURA ,  Hiroshi NAGASAWA ,  Kaori MATSUSHIMA ,  Masahiro MATSUOKA ,  Aya SHIRAI ,  Taiki AMEMIYA

IPC: G03G9/087

CPC classification number: G03G9/0825 ,  G03G9/08702 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08797

Abstract: Provided is a toner for electrostatic image development, having low-temperature fixability and long-term stable charge property and also having heat-resistant storage stability. The toner for electrostatic image development includes toner particles containing a binder resin. The binder resin has a domain-matrix structure in which a crystalline polyester resin is dispersed as a domain phase in a matrix phase formed of an amorphous vinyl polymer formed using at least a vinyl-based monomer. The amorphous vinyl polymer has a carboxy group concentration of not less than 0.2 mmol/g and not more than 1.0 mmol/g, and the crystalline polyester resin has an ester group concentration of not less than 0.1 mmol/g and not more than 7.1 mmol/g.

Abstract translation: 本发明提供一种用于静电图像显影的调色剂，具有低温定影性和长期稳定的带电性，并且还具有耐热储存稳定性。 用于静电图像显影的调色剂包括含有粘合剂树脂的调色剂颗粒。 粘合剂树脂具有其中结晶性聚酯树脂作为畴相​​分散在由使用至少一种乙烯基类单体形成的无定形乙烯基聚合物形成的基体相中的畴 - 基质结构。 无定形乙烯基聚合物的羧基浓度为0.2mmol / g以上1.0mmol / g以下，结晶性聚酯树脂的酯基浓度为0.1mmol / g以上且7.1mmol以下 /G。