Invention Grant
- Patent Title: Flowability improver for polycarbonate and polyarylate, polycarbonate resin composition, polyarylate resin composition, and molded article thereof
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Application No.: US15477483Application Date: 2017-04-03
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Publication No.: US10253178B2Publication Date: 2019-04-09
- Inventor: Shusuke Yoshihara , Hidekazu Kawakubo , Keika Hattori , Kazuaki Matsumoto , Kazunori Saegusa
- Applicant: KANEKA CORPORATION
- Applicant Address: JP Osaka-shi
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-205199 20141003
- Main IPC: C08L67/03
- IPC: C08L67/03 ; C08G63/193 ; C08K5/13 ; C08K5/524 ; C08L69/00 ; C08L67/02
Abstract:
A method of improving flowability of polycarbonate or polyarylate includes mixing the polycarbonate or the polyarylate with a flowability improver including a polyester. The polyester is a polycondensate of monomers including a bisphenol component (B) and a dicarboxylic acid component (C) at a molar ratio satisfying (B):(C)=45:55-55:45. The polyester includes a portion derived from the bisphenol component (B) and the dicarboxylic acid component (C) in an amount of 50 mol % or more.
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