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1. 发明申请

US20200039125A1 METHOD FOR MANUFACTURING RESIN MOLDED BODY AND RESIN MOLDED BODY 审中-公开
公开(公告)号：US20200039125A1
公开(公告)日：2020-02-06
申请号：US16494858
申请日：2018-03-19
申请人： Sumitomo Chemical Company, Limited
发明人： Hidehiro KOTAKA
IPC分类号： B29C45/00 , B29C45/26 , B29C45/27
摘要： A method for manufacturing a long-length resin molded body using a liquid crystal polyester is provided. The method includes injecting a resin composition containing the liquid crystal polyester via a gate into a cavity of a mold and filling the cavity with the resin composition. The mold cavity has a shape corresponding with the resin molded body and a gate is provided in a position where the distance from an end edge of the cavity in a long-length direction of the cavity is not more than 10% of the length of the long-length direction. The ratio of the length of the long-length direction relative to a length of a short-length direction of the cavity is two or greater. The length of the long-length direction is 200 mm or greater. A thickness of the cavity is at least 0.5 mm but not more than 3.0 mm.

2. 发明申请

US20160244588A1 RESIN COMPOSITION FOR SLIDING MEMBER 有权
标题翻译：用于滑动构件的树脂组合物
公开(公告)号：US20160244588A1
公开(公告)日：2016-08-25
申请号：US15024662
申请日：2014-09-29
申请人： SUMITOMO CHEMICAL COMPANY, LIMITED
发明人： Hidehiro KOTAKA , Hirokazu MATSUI , Mitsuo MAEDA
IPC分类号： C08K3/04 , C09K19/38 , C08K3/34 , C08K7/06 , C08L81/06
CPC分类号： C08K3/04 , C08J7/042 , C08J2381/06 , C08K3/34 , C08K7/06 , C08L81/06 , C08L101/00 , C08L2205/16 , C09K19/3809 , C10M2209/103
摘要： A resin composition is provided for a sliding member. The composition contains an amorphous resin, flake graphite, and a carbon fiber. The content of the flake graphite is 5 to 40 parts by mass relative to 100 parts by mass of the amorphous resin, and the content of the carbon fiber is 5 to 60 parts by mass relative to 100 parts by mass of the amorphous resin.
摘要翻译：为滑动构件设置树脂组合物。该组合物含有无定形树脂，片状石墨和碳纤维。相对于无定形树脂100质量份，片状石墨的含量为5〜40质量份，相对于无定形树脂100质量份，碳纤维的含量为5〜60质量份。

3. 发明申请

US20130197165A1 METHOD OF PRODUCING LIQUID CRYSTAL POLYESTER 审中-公开
标题翻译：生产液晶聚酯的方法
公开(公告)号：US20130197165A1
公开(公告)日：2013-08-01
申请号：US13750349
申请日：2013-01-25
申请人： Sumitomo Chemical Company, Limited
发明人： Shinji OHTOMO , Hidehiro KOTAKA
IPC分类号： C09K19/38
CPC分类号： C09K19/38 , C09K19/3809
摘要： A method is provided of producing a liquid crystal polyester, including: preparing a liquid crystal polyester prepolymer containing a repeating unit represented by general formula (1) and a repeating unit represented by general formula (2) by melt polymerization, cooling and solidifying the prepolymer to obtain a solidified prepolymer, pulverizing the solidified prepolymer to obtain a prepolymer powder, and heating the prepolymer powder to conduct solid-phase polymerization. A liquid crystal polyester is thereby prepared having a polymerization degree higher than the prepolymer. Preparing a liquid crystal polyester is performed with a rate of temperature rise within a temperature range of from a temperature 10° C. lower than a final end-point temperature of the solid-phase polymerization to the final end-point temperature of from 0.01° C./min to 0.03° C./min.
摘要翻译：提供一种制造液晶聚酯的方法，包括：通过熔融聚合，冷却和固化预聚物制备含有由通式（1）表示的重复单元和由通式（2）表示的重复单元的液晶聚酯预聚物得到固化预聚物，粉碎固化预聚物以获得预聚物粉末，加热预聚物粉末进行固相聚合。由此制备聚合度高于预聚物的液晶聚酯。以比固相聚合的最终终点温度低至最终终点温度0.01℃的温度10℃的温度范围内的温度升高速度进行液晶聚酯的制备 C. / min至0.03℃/ min。

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