公开(公告)号：US20230265245A1

公开(公告)日：2023-08-24

申请号：US18024231

申请日：2021-09-02

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Koichi SUGA ,  Minoru SENGA ,  Hiromu KUMAGAI ,  Yuko MURAKAMI

IPC: C08G65/40

CPC classification number: C08G65/4087

Abstract: Provided is a method for producing an aromatic polyether, comprising reacting 4,4′-dichlorobenzophenone and hydroquinone in the presence of a potassium carbonate satisfying at least one of the following conditions (A) and (B): (A) the potassium carbonate has a bulk density of 1.2 g/ml or less; and (B) an average particle diameter D (µm) and a specific surface area S (m2/g) of the potassium carbonate satisfy D/S≤600.

公开(公告)号：US20230265244A1

公开(公告)日：2023-08-24

申请号：US18024240

申请日：2021-09-02

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Koichi SUGA ,  Minoru SENGA ,  Hiromu KUMAGAI ,  Yuko MURAKAMI

IPC: C08G65/40

CPC classification number: C08G65/4012 ,  C08G65/4093

Abstract: Provided is a polyether ether ketone, comprising a repeating unit represented by the following formula (1), the polyether ether ketone having a crystallization temperature Tc of 255° C. or more, and satisfying one or both of the following conditions (A) and (B): (A) a fluorine atom content a is less than 2 mg/kg; and (B) a chlorine atom content b is 2 mg/kg or more.

公开(公告)号：US20170321003A1

公开(公告)日：2017-11-09

申请号：US15522217

申请日：2015-10-27

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yumi NAKAYAMA ,  Koichi SUGA ,  Yasuhiro ISHIKAWA

IPC: C08G64/08 ,  C08L101/00 ,  C08L69/00

CPC classification number: C08G64/085 ,  C08G64/14 ,  C08G64/24 ,  C08G77/448 ,  C08L69/00 ,  C08L101/00

Abstract: Provided is a branched polycarbonate resin, including a constituent unit represented by the general formula (I′).

公开(公告)号：US20160083513A1

公开(公告)日：2016-03-24

申请号：US14785499

申请日：2014-04-17

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Junpei MARUYAMA ,  Hironori TASHIRO ,  Toshifumi MIYAGAWA ,  Masayuki SHIBATA ,  Aki YAMADA ,  Koichi SUGA ,  Yumi NAKAYAMA

IPC: C08G64/16 ,  F21V8/00 ,  C08L69/00

CPC classification number: C08G64/1616 ,  C07C39/06 ,  C08G64/14 ,  C08L69/00 ,  C08L2205/025 ,  G02B6/0065 ,  G02F1/133504

Abstract: Provided is a polycarbonate resin for a liquid crystal member, which is produced by using an end terminator containing 3-pentadecylphenol obtained from a natural product, and which has a YI value of 1.1 or less or a light transmittance at a wavelength of 400 nm of 85% or more.

Abstract translation: 本发明提供一种液晶部件用聚碳酸酯树脂，其通过使用由天然产物得到的含有3-十五烷基苯酚的端部终止剂，其YI值为1.1以下，波长400nm的透光率为 85％以上。

公开(公告)号：US20240026077A1

公开(公告)日：2024-01-25

申请号：US18024250

申请日：2021-09-02

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Koichi SUGA ,  Minoru SENGA ,  Hiromu KUMAGAI ,  Yuko MURAKAMI

IPC: C08G65/40 ,  C08K7/06 ,  C08K7/14 ,  C08J5/18

CPC classification number: C08G65/4012 ,  C08K7/06 ,  C08K7/14 ,  C08J5/18 ,  C08G2650/40 ,  C08J2371/10

Abstract: Provided is a polyether ether ketone, comprising a repeating unit represented by the following formula (1), satisfying one or both of the following conditions (A) and (B), and having a hydroxy group at one terminal or both terminals of a main chain of the polyether ether ketone: (A) a fluorine atom content a is less than 2 mg/kg; and (B) a chlorine atom content b is 2 mg/kg or more.

公开(公告)号：US20250163244A1

公开(公告)日：2025-05-22

申请号：US18841058

申请日：2023-09-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Minoru SENGA ,  Koichi SUGA

IPC: C08K7/06

Abstract: A composition including an aromatic polyether which includes a structural unit represented by the following formula (1) and a structural unit represented by the following formula (2), wherein the amount of chlorine atom bonded is 10 to 10,000 ppm by mass, and a discontinuous carbon fiber.

公开(公告)号：US20210206967A1

公开(公告)日：2021-07-08

申请号：US17059926

申请日：2019-05-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Koichi SUGA ,  Yumi NAKAYAMA ,  Aki YAMADA

IPC: C08L69/00 ,  C08G64/04 ,  C08G64/08 ,  C08G64/10 ,  C08G64/14 ,  C08G64/20 ,  C08L27/18 ,  C08L83/04 ,  C08K5/17

Abstract: Provided is a polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more.

公开(公告)号：US20200148834A1

公开(公告)日：2020-05-14

申请号：US16633126

申请日：2018-07-26

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Aki YAMADA ,  Koichi SUGA

IPC: C08G81/02

Abstract: Provided is a carbonate-olefin-based copolymer including a polycarbonate block, an olefin-based polymer block, and a specific constituent unit.