公开(公告)号：US20220388208A1

公开(公告)日：2022-12-08

申请号：US17763419

申请日：2020-09-16

申请人： Polyplastics Co., Ltd.

发明人： Takashi FUJITA ,  Hiroki ARAI

IPC分类号： B29C45/00 ,  C08K7/14 ,  C08K3/26 ,  C08K3/40 ,  G03B30/00 ,  B60R11/04

摘要： A casing member for an in-vehicle camera, obtained by injection molding a resin composition that comprises 100 to 300 parts by mass of a total of a fibrous inorganic filler and a non-fibrous inorganic filler to 100 parts by mass of a polyarylene sulfide resin and has a content of an elastomer of 10% by mass or less, and satisfying the following conditions (A) and (B). (A) When a molded product of a predetermined shape is injection molded using the resin composition under predetermined conditions, an absolute value of (shrinkage rate in a direction perpendicular to a flow direction)−(shrinkage rate in the flow direction) is 0.5% or less. (B) A water absorption rate of a molded product of a predetermined shape that is injection molded using the resin composition under predetermined conditions is 0.3% or less when subjected to a predetermined hot water immersion test.

公开(公告)号：US20160280917A1

公开(公告)日：2016-09-29

申请号：US15029697

申请日：2014-10-24

申请人： POLYPLASTICS CO., LTD.

发明人： Hiroki ARAI

IPC分类号： C08L81/04 ,  C09D181/04

CPC分类号： C08L81/04 ,  C08G77/442 ,  C08J3/20 ,  C08K7/14 ,  C08L51/085 ,  C08L67/02 ,  C08L83/04 ,  C08L101/00 ,  C08L2201/08 ,  C09D181/04

摘要： A corona-resistant resin composition and a corona-resistant member, having sufficient durability relative to corona discharge, are provided. A corona-resistant resin composition obtained, at least, by melt kneading 7 to 80 parts by mass of a silicone-based polymer per 100 parts by mass of a resin component, and a corona-resistant member formed by molding the corona-resistant resin composition, are disclosed. A polyarylene sulfide resin or a polybutylene terephthalate resin may be used as the resin component.

摘要翻译： 提供具有相对于电晕放电具有足够的耐久性的耐电晕树脂组合物和耐电晕构件。 至少通过每100质量份树脂成分将7〜80质量份的硅酮系聚合物熔融混炼得到的耐电晕树脂组合物，以及通过将抗电晕树脂 组合物。 可以使用聚芳硫醚树脂或聚对苯二甲酸丁二醇酯树脂作为树脂组分。

公开(公告)号：US20200172699A1

公开(公告)日：2020-06-04

申请号：US16487679

申请日：2018-02-23

申请人： Polyplastics Co., Ltd.

发明人： Hiroki ARAI ,  Tomohiro MONMA

IPC分类号： C08K3/22 ,  C08K5/134 ,  C08G2/10

摘要： The present invention addresses the problem of providing a polyacetal resin composition which can minimize degradation of a molded product produced from the acetal resin composition, when the molded product is in contact with an acidic cleaner. Said problem is solved by a polyacetal resin composition, comprising: polyacetal copolymer (A) in an amount of 100 parts by mass, wherein said polyacetal copolymer (A) has a hemiformal terminal group content of 0.8 mmol/kg or less; hindered phenol-based antioxidant (B) in an amount of 0.1 to 1.0 part by mass; and at least one selected from an oxide of magnesium or zinc or a hydroxide of magnesium or zinc (C) in an amount more than 2.0 parts by mass and 30 parts by mass or less.

公开(公告)号：US20150299420A1

公开(公告)日：2015-10-22

申请号：US14437710

申请日：2013-10-24

申请人： POLYPLASTICS CO., LTD.

发明人： Hiroki ARAI

IPC分类号： C08K3/34

CPC分类号： C08K3/34 ,  C08K3/346 ,  C08L67/02 ,  C08L81/02 ,  C08L101/00

摘要： A corona resistant resin composition having sufficient resistance to corona discharge, and a corona resistant member are provided. This corona resistant member is formed by molding a corona-resistant resin composition obtained by melting and mixing at least a resin component and mica, and a mode diameter of the mica in the volume-based particle size distribution measured by a laser diffraction/scattering method after molding is 1 to 200 μm. For 100 parts by mass of the resin component, there are preferably 25-101 parts by mass of mica.

摘要翻译： 提供具有足够的耐电晕放电性的抗电晕树脂组合物和抗电晕部件。 该抗电晕部件是通过将通过熔融混合至少树脂成分和云母得到的电晕耐用树脂组合物和通过激光衍射/散射法测定的基于体积的粒径分布中的云母的模量直径成型而形成的 成型后为1〜200μm。 对于100质量份的树脂成分，优选云母为25〜101质量份。

公开(公告)号：US20230331978A1

公开(公告)日：2023-10-19

申请号：US18338790

申请日：2023-06-21

申请人： Polyplastics Co., Ltd.

发明人： Yuhei HOSOI ,  Akihiro TAMAOKA ,  Hiroki ARAI ,  Tomohiro MONMA

IPC分类号： C08L59/04 ,  C08L71/02 ,  C08K3/22 ,  C08K5/3472 ,  C08K5/20 ,  C08K5/13 ,  C08K5/17

CPC分类号： C08L59/04 ,  C08K3/22 ,  C08K5/13 ,  C08K5/17 ,  C08K5/20 ,  C08K5/3472 ,  C08L71/02 ,  C08K2003/222 ,  C08K2003/2296 ,  C08K2201/006 ,  C08K2201/014

摘要： A polyacetal resin composition that allows molded articles to be inhibited from being deteriorated by contact with acidic detergents, and in which the portions that have contacted the detergents are inhibited from being deteriorated by light. The polyacetal resin composition includes 100 parts by mass of a polyacetal polymer, 0.1-2.0 parts by mass of a hindered-phenol-based antioxidant, 2.0-20 parts, excluding 2.0 parts, by mass of at least one of magnesium oxide and zinc oxide,0.5-3.0 parts by mass of a polyalkylene glycol, 0.2-1.5 parts by mass of a hindered amine compound, and 0.2-1.5 parts by mass of an ultraviolet absorber.