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91. 发明申请

US20180282650A1 Dust-resistant sliding member and method for producing same, window regulator carrier plate, and method for realizing dust-resistant slidability 审中-公开
公开(公告)号：US20180282650A1
公开(公告)日：2018-10-04
申请号：US15475522
申请日：2017-03-31
申请人： Polyplastics Co., Ltd.
发明人： Yuki Kanda , Tomohiro Monma , Takanori Ueda
IPC分类号： C10M107/50 , C08L59/04 , C10M107/06 , C10M125/30 , C10M125/28 , C10M107/34 , B60J1/16
摘要： A method for producing a dust-resistant sliding member, the method including a step of preparing a resin composition containing 0.5 to 5.0 parts by mass of a lubricant that is liquid at 25° C. and is composed of at least one material selected from the group consisting of ethylene/α-olefin copolymers, poly-α-olefins and silicones, and 0.1 to 30 parts by mass of an inorganic filler, per 100 parts by mass of a polyacetal resin, and a step of molding the resin composition into a prescribed shape.

92. 发明授权

US10072147B2 Sulfur-containing fuel contact body provided with molded article including polyacetal resin composition having increased acid resistance 有权
公开(公告)号：US10072147B2
公开(公告)日：2018-09-11
申请号：US15149952
申请日：2016-05-09
申请人： Polyplastics Co., Ltd.
发明人： Akihide Shimoda , Satomi Nakada , Yasumitsu Miyamoto , Hidemi Kondo
IPC分类号： C08K3/22 , C08K5/053 , C08L59/00 , C08L59/04 , C08K5/103 , C08K5/134 , C08J7/14
CPC分类号： C08L59/04 , C08J7/14 , C08J2359/02 , C08K3/22 , C08K5/103 , C08K5/134 , C08K5/1345 , C08K2003/222 , C08L71/02 , C08L2201/08 , F02M2200/9015
摘要： A polyacetal resin composition makes it possible, when formed into a molded article, to minimize deterioration during contact with sulfur-containing fuel or an acidic detergent. The polyacetal resin composition contains (A) 100 parts by weight of polyacetal resin, (B) 0.1-1.0 parts by weight of hindered phenolic antioxidant, (C) 0.1-2.0 parts by weight of alkaline earth metal oxide, (D) 0.5-3.0 parts by weight of polyalkylene glycol, and (E) 0.01-1.0 parts by weight of polyvalent fatty acid full ester. This polyacetal resin composition minimizes reductions in the weight of a molded article even after the molded article has been immersed in sulfur-containing fuel.

93. 发明授权

US10053557B2 Low wear debris polyoxymethylene composition and a ramp made of such polyoxymethylene composition suitable for various HDD designs 有权
公开(公告)号：US10053557B2
公开(公告)日：2018-08-21
申请号：US15272447
申请日：2016-09-22
申请人： MIN AIK TECHNOLOGY CO., LTD.
发明人： Chi-En Lin , Jung-Pao Chang , Hung-Yu Chi
IPC分类号： C08L59/04 , C08K13/02 , C08L59/00 , G11B5/40 , G11B5/54
CPC分类号： C08K13/02 , C08L59/00 , C08L59/04 , G11B5/40 , G11B5/54 , C08K5/00 , C08K5/0075 , C08K5/0083 , C08K3/00 , C08K2003/2296 , C08L71/02
摘要： A polyoxymethylene composition includes a polyoxymethylene copolymer with 1,3-dioxolane as a comonomer, a wear resistance agent, a nucleating agent, and an antistatic agent. A ramp is made of the polyoxymethylene composition. The ramp and the polyoxymethylene have excellent low-wear-debris property. The low wear debris polyoxymethylene composition can be used to produce a ramp for many different designs of hard disks, such as PMR (perpendicular recording)+TDMR (Two-Dimensional Magnetic Recording), SMR (Shingled Magnetic Recording), HAMR+ (HAMR (Heat Assisted Magnetic Recording)+SMR+TDMR), BPMR+ (BPMR (Bit Pattern Media Recording)+SMR+TDMR), and helium-filled hard disk.

94. 发明授权

US10030208B2 Intrinsic low friction polyoxymethylene 有权
公开(公告)号：US10030208B2
公开(公告)日：2018-07-24
申请号：US14511891
申请日：2014-10-10
申请人： Ticona GmbH
发明人： Qamer Zia , Oliver Juenger , Jos Bastiaens , Kirsten Markgraf
IPC分类号： C10M155/02 , C10M125/26 , C08L59/04 , C08L61/00 , C08G16/02 , C08L59/00 , C08K3/38
摘要： A tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer and at least one tribological modifier. The tribological modifier may comprise at least one tribological modifier comprising an ultra-high molecular weight silicone having a kinematic viscosity of greater than 100,000 mm2s−1. The composition may exhibit a dynamic coefficient of friction against a counter-material of from about 0.01 to about 0.15. The polyoxymethylene polymer compositions provide polymer articles with improved tribological properties and mechanical properties.

95. 发明申请

US20170349742A1 METHOD FOR PRODUCING POLYACETAL RESIN COMPOSITION 有权
公开(公告)号：US20170349742A1
公开(公告)日：2017-12-07
申请号：US15538008
申请日：2015-11-09
申请人： Polyplastics Co., Ltd.
发明人： Tadahiro HORIGUCHI , Akihide SHIMODA
IPC分类号： C08L59/04
CPC分类号： C08L59/04 , C08G2/20 , C08L2205/025
摘要： A polyacetal resin composition which is suppressed low in formaldehyde generation, while having high stiffness and high toughness. The resin is produced by a method including blending from 0.1 part by weight to 2 parts by weight (inclusive) of a polyacetal copolymer having a branched or crosslinked structure, which is a copolymer of a trioxane, a compound having from 3 to 4 (inclusive) cyclic ether units in each molecule and a compound having one cyclic ether unit in each molecule, per 100 parts by weight of a linear polyacetal copolymer which contains an oxymethylene unit as a main constituent, while containing, as a comonomer unit, an oxyalkylene unit at a ratio of from 0.4% by mole to 0.9% by mole (inclusive) relative to the constituents of the linear polyacetal copolymer, the linear polyacetal copolymer being obtained by copolymerization wherein a heteropolyacid or the like is used as a polymerization catalyst.

96. 发明授权

US09834669B1 Method for producing polyacetal resin composition 有权
公开(公告)号：US09834669B1
公开(公告)日：2017-12-05
申请号：US15538008
申请日：2015-11-09
申请人： Polyplastics Co., Ltd.
发明人： Tadahiro Horiguchi , Akihide Shimoda
IPC分类号： C08G63/02 , C08L59/04
CPC分类号： C08L59/04 , C08G2/20 , C08L2205/025
摘要： A polyacetal resin composition which is suppressed low in formaldehyde generation, while having high stiffness and high toughness. The resin is produced by a method including blending from 0.1 part by weight to 2 parts by weight (inclusive) of a polyacetal copolymer having a branched or crosslinked structure, which is a copolymer of a trioxane, a compound having from 3 to 4 (inclusive) cyclic ether units in each molecule and a compound having one cyclic ether unit in each molecule, per 100 parts by weight of a linear polyacetal copolymer which contains an oxymethylene unit as a main constituent, while containing, as a comonomer unit, an oxyalkylene unit at a ratio of from 0.4% by mole to 0.9% by mole (inclusive) relative to the constituents of the linear polyacetal copolymer, the linear polyacetal copolymer being obtained by copolymerization wherein a heteropolyacid or the like is used as a polymerization catalyst.

97. 发明申请

US20170283583A1 POLYACETAL RESIN MOLDED ARTICLE 审中-公开
公开(公告)号：US20170283583A1
公开(公告)日：2017-10-05
申请号：US15512683
申请日：2014-10-16
申请人： ASAHI KASEI KABUSHIKI KAISHA
发明人： Junichi TSUZUKI , Takaaki MIYOSHI
IPC分类号： C08K5/11 , C08K5/101 , C08K5/20 , C08K3/22 , C08L59/04
CPC分类号： C08K5/11 , C08G2/38 , C08K3/22 , C08K5/101 , C08K5/20 , C08K2003/2237 , C08K2003/2241 , C08K2003/2265 , C08K2003/2296 , C08L23/06 , C08L23/12 , C08L59/04
摘要： The resin molded article of the present invention comprises (B) 0.1 to 5 parts by mass of a sliding agent having a weight average molecular weight of 10,000 or less, and (C) 0.01 to 3 parts by mass of a coloring agent, based on (A) 100 parts by mass of a polyacetal resin, wherein a relative element concentration ratio between carbon and oxygen on a surface thereof [C/O] (atomic %) is 1.01 to 2.50.

98. 发明授权

US09309383B2 Composition for injection molding, sintered compact, and method for producing sintered compact 有权
标题翻译：注射成型用组合物，烧结体和烧结体的制造方法
公开(公告)号：US09309383B2
公开(公告)日：2016-04-12
申请号：US13687243
申请日：2012-11-28
申请人： Seiko Epson Corporation
发明人： Nobuyuki Hamakura , Hidefumi Nakamura
IPC分类号： C09B67/00 , C22C29/00 , C08K13/02 , B22F3/12 , C08L59/04 , B22F1/00 , B22F3/22 , C08L23/06 , C08L23/08
CPC分类号： C08K13/02 , B22F1/0062 , B22F3/12 , B22F3/225 , B22F2998/10 , C04B35/111 , C04B35/6261 , C04B35/6342 , C04B35/638 , C04B2235/5445 , C04B2235/6022 , C04B2235/9638 , C08L23/06 , C08L23/0884 , C08L59/04 , C08L63/00 , B22F3/1017
摘要： A composition for injection molding includes: an inorganic powder composed of at least one of a metal material and a ceramic material; and a binder containing a polyacetal-based resin, an unsaturated glycidyl group-containing polymer, and a lubricant. In the composition, the unsaturated glycidyl group-containing polymer is contained in an amount of 1% by mass or more and 30% by mass or less with respect to the amount of the polyacetal-based resin.
摘要翻译：注射成型用组合物包括：由金属材料和陶瓷材料中的至少一种构成的无机粉末; 和含有聚缩醛类树脂，不饱和缩水甘油基聚合物和润滑剂的粘合剂。在该组合物中，含有不饱和缩水甘油基聚合物的含量相对于聚缩醛类树脂为1质量％以上且30质量％以下。

99. 发明申请

US20150294750A1 POLYACETAL RESIN COMPOSITION AND MOLDED ARTICLE OF THE SAME 审中-公开
标题翻译：聚酯树脂组合物及其成型品
公开(公告)号：US20150294750A1
公开(公告)日：2015-10-15
申请号：US14646875
申请日：2013-11-25
申请人： ASAHI KASEI CHEMICALS CORPORATION
发明人： Nozomi Inagaki , Takaaki Miyoshi , Junichi Tsuzuki
IPC分类号： H01B1/12 , C08L59/04 , C08K3/04
CPC分类号： H01B1/24 , C08K3/04 , C08K3/08 , C08K2201/001 , C08K2201/006 , C08L23/06 , C08L59/02 , C08L59/04 , C08L63/00 , C08L2205/03 , C08L2207/062
摘要： The resin composition according to the present invention contains a polyacetal resin having a specific molecular weight distribution, a specific carbon black, and an alkaline metal wherein the contents of the carbon black and the alkaline metal are in specific ranges. The molded article according to the present invention contains the resin composition.
摘要翻译：本发明的树脂组合物含有特定的分子量分布的聚缩醛树脂，特定的炭黑和碱金属，其中炭黑和碱金属的含量在特定范围内。根据本发明的模塑制品含有树脂组合物。

100. 发明申请

US20130137811A1 Modifying Polyoxymethylene Imidized Acrylic Resins 审中-公开
标题翻译：改性聚甲醛酰亚胺树脂
公开(公告)号：US20130137811A1
公开(公告)日：2013-05-30
申请号：US13306806
申请日：2011-11-29
申请人： Xiyun Serene Fan , Ramabhadra Ratnagiri
发明人： Xiyun Serene Fan , Ramabhadra Ratnagiri
IPC分类号： C08L59/02 , C08L59/04 , C08L33/12
CPC分类号： C08L59/02 , C08F8/48 , C08L59/04 , C08L33/24 , C08F8/32 , C08F8/12 , C08F120/14 , C08F8/14
摘要： Described herein are compositions comprising (a) 92 to 99 weight percent, of polyoxymethylene with number average molecular weight from 65,000 to 250,000 g/mole; and (b) 1 to 8 weight percent of an imidized acrylic resin obtained by treating an acrylic polymer with a monoalkyl amine, wherein the weight percents of a and b are based on their combined weight, and monoalkyl group has from one to five carbon atoms, the degree of imidization is 20% to 100% and the acid level is from 0 to about 2 weight percent of the imidized acrylic resin. The composition has significantly higher heat deflection temperature than the neat polyoxymethylene.Processes of increasing heat deflection temperature of POM compositions described herein by blending (a) and (b), wherein the resultant melt-mixed composition has a 200% increase or greater in time to 5% creep strain relative to the same melt-mixed composition lacking (b).
摘要翻译：本文描述的是包含（a）92至99重量％的数均分子量为65,000至250,000g /摩尔的聚甲醛的组合物; 和（b）1至8重量％的通过用单烷基胺处理丙烯酸类聚合物而得到的酰亚胺化丙烯酸树脂，其中a和b的重量百分比基于其组合重量，单烷基具有1至5个碳原子酰亚胺化度为20％〜100％，酸度为酰亚胺化丙烯酸树脂的0〜2％。该组合物具有比纯聚甲醛显着更高的热变形温度。通过混合（a）和（b），增加本文所述的POM组合物的热变形温度的方法，其中所得熔体混合组合物相对于相同的熔融混合组合物在5％蠕变应变时间上具有200％增加或更大缺乏（b）。

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