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公开(公告)号：US20160214169A1
公开(公告)日：2016-07-28
申请号：US14649393
申请日：2013-12-13
Applicant: UNITIKA LTD.
Inventor： Munenori Yamada , Kou Takeuchi , Mutsumi Matsushita , Airi Horikoshi , Akira Shigeta , Masahiro Hosoda , Yoshiaki Echigo , Kenta Shibata
CPC classification number: B22F1/004 , B22F9/24 , B22F2009/245 , B22F2301/10 , B22F2304/10 , B22F2998/10 , C30B7/00 , C30B7/14 , C30B29/02 , C30B29/62
Abstract: The present invention provides fibrous copper microparticles suppressed in the occurrence of irregularities on the surface thereof and the aggregates of the fibrous copper microparticles having an average crystallite diameter controlled so as to fall within a specific range. In the fibrous copper microparticles of the present invention, the number of fibrous copper microparticles each including one or more irregularities each having a dimensional difference of 0.02 μm or more, in a range of 1 μm in the lengthwise direction of a fibrous body, between the maximum diameter portion of the fibrous body and the minimum diameter portion of the fibrous body falling in a diameter dimension range of 0.01 to 0.5 μm, and each having a length of 1 μm or more is 10 or less per 100 of the fibrous copper microparticles.
Abstract translation: 本发明提供了抑制其表面发生不规则性的纤维状铜微粒和将平均微细直径控制在特定范围内的纤维状铜微粒的聚集体。 在本发明的纤维状铜微粒中，纤维状铜微粒的数量在纤维体的长度方向上为1μm以上的尺寸差为0.02μm以上的不规则性， 纤维体的最大直径部分和纤维体的最小直径部分，其直径尺寸范围为0.01〜0.5μm，长度为1μm以上，每100个纤维状铜微粒为10个以下。
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公开(公告)号：US10584212B2
公开(公告)日：2020-03-10
申请号：US15564678
申请日：2016-04-06
Applicant: UNITIKA LTD.
Inventor： Yumeto Fukubayashi , Makoto Nakai , Akira Shigeta , Munenori Yamada
Abstract: The present invention is to provide a polyamide-imide which has a high regularity of molecular structure and few branched structures, does not contain hydrogen halide, is not required to be separated and purified in post processes, and can be suitably used as a film, a varnish, or a molding material; raw material salt of polyamide-imide and production method thereof.The polyamide-imide has a repeating unit represented by the general formula (1): in which R1, R2 represent independently a divalent residue having an aromatic ring, an aliphatic ring or an aliphatic hydrocarbon; R3, R4 represent independently a trivalent residue having an aromatic ring or an aliphatic ring; and an hydrogen atom bonding to the respective rings may be replaced by another atom or an atomic group.
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