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1. 发明公开

EP3896126A1 RESIN COMPOSITION AND MOLDED BODY OBTAINED FROM SAME 有权
公开(公告)号：EP3896126A1
公开(公告)日：2021-10-20
申请号：EP20794044.6
申请日：2020-04-21
申请人： Unitika Ltd.
发明人： NABESHIMA, Yutaka
IPC分类号： C08K5/103 , C08K5/524 , C08L67/03 , C08L69/00 , F21V7/22
摘要： The present invention is to provide a resin composition capable of producing a molded product sufficiently excellent in hydrolysis resistance and mold release characteristics and having an excellent balance between heat resistance and fluidity, even if a heat stabilizer and a mold release agent are contained.
The present invention relates to a resin composition, comprising: (A) a polyarylate resin; (B) a melt-polymerized polycarbonate resin; (C) a specific phosphite compound; and (D) a dipentaerythritol fatty acid ester, a mass ratio (A/B) of the (A) polyarylate resin and the (B) melt-polymerized polycarbonate resin being from 2/98 to 98/2, and the resin composition having a Vicat softening point of 140°C or higher

2. 发明公开

EP4047046A1 RESIN COMPOSITION AND MOLDED ARTICLE 无效
公开(公告)号：EP4047046A1
公开(公告)日：2022-08-24
申请号：EP20877112.1
申请日：2020-10-12
申请人： Unitika Ltd.
发明人： NABESHIMA, Yutaka
IPC分类号： C08K5/526 , C08L27/12 , C08L67/03 , C08L69/00 , C08K3/04 , C08K3/36
摘要： The present invention provides a resin composition, from which a molded product excellent in a dust-generating resistance property, heat-resisting properties, a dimensional stability, sliding properties, mechanical properties and external appearance properties can be molded and which is excellent in a molding stability, and a molded product which is obtained by molding the same. The present invention relates to a resin composition comprising a polyarylate resin, a polycarbonate resin, silica particles having an average particle diameter of 0.4 to 12 µm, fluorine atom-containing polymer particles having an average particle diameter of 0.5 to 20 µm, and a particular phosphite ester compound, wherein a mass ratio of the polyarylate resin and the polycarbonate resin is 25/75 to 92/8, a content of the silica particles is 4 to 65 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin, a content of the fluorine atom-containing polymer particles is 0.5 to 12 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin, and a content of the phosphite ester compound is 0.008 to 1.2 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin.

3. 发明公开

EP3467031A1 RESIN COMPOSITION AND MOLDED ARTICLE 有权转让
公开(公告)号：EP3467031A1
公开(公告)日：2019-04-10
申请号：EP17802670.4
申请日：2017-05-18
申请人： UNITIKA LTD.
发明人： NABESHIMA, Yutaka
IPC分类号： C08L69/00 , C08K3/36 , C08K5/134 , C08K5/524 , C08L67/03 , G02B1/04
摘要： The present invention provides a resin composition excellent in a molding stability, which can be molded into a molded article excellent in a dust generation resistance, a heat resistance, a dimensional stability, and an external appearance, and a molded article obtained by molding the same. The present invention relates to a resin composition comprising a polyarylate resin, a polycarbonate resin, silica particles having an average particle diameter of 0.5 to 10 µm and a phosphite ester compound shown by a general formula (I), wherein a mass ratio of the polyarylate resin and the polycarbonate resin is 25/75 to 90/10, a content of the silica particles is 5 to 60 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin and a content of the phosphite ester compound is 0.01 to 1 part by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin:

(wherein m1 and m2 respectively and independently are an integer of 0 to 5; R 1 and R 2 respectively and independently represent an alkyl group having 1 to 12 carbon atoms, which may have a substituent group; four R 3 s respectively and independently represent an alkylene group having 1 to 5 carbon atoms.).

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