公开(公告)号：US20250034327A1

公开(公告)日：2025-01-30

申请号：US18733793

申请日：2024-06-04

Applicant: FUJIFILM Corporation

Inventor： Shohei KATAOKA ,  Shinsuke Tokuoka

IPC: C08G63/183

Abstract: Provided are a polyester resin that achieves both a high Tg and low water absorbency at an excellent level; and a molded product including the same.
A polyester resin including a structural unit represented by General Formula (A) and at least one of a structural unit represented by General Formula (B) or a structural unit represented by General Formula (C); and a molded product including the same. In the formula, R1 represents a linear aliphatic hydrocarbon group having 6 or more carbon atoms, R2 represents a hydrogen atom or a substituent, R3 represents a branched alkyl group having 3 or more carbon atoms, R4 represents a hydrogen atom or an aliphatic hydrocarbon group having 1 to 5 carbon atoms, R5 represents an aliphatic hydrocarbon group and X represents a hydrocarbon group having a cyclic structure. n is an integer of 0 to 8, m is an integer of 1 to 4, and It should be noted that R1 and R2 are not bonded to each other to form a ring, and R3 and R4 are not bonded to each other to form a ring. * represents a bonding site.
The 1,4-phenylene group in the formulae may be substituted with an aliphatic hydrocarbon group and/or an aromatic hydrocarbon group.

公开(公告)号：US11186685B2

公开(公告)日：2021-11-30

申请号：US16455091

申请日：2019-06-27

Applicant: FUJIFILM Corporation

Inventor： Shinsuke Tokuoka ,  Hayato Yoshida ,  Katsuhiro Shimono ,  Takayuki Ito

IPC: C08J3/09 ,  B29B9/12 ,  C08J3/24 ,  C08K5/00 ,  C08L1/26 ,  B29B9/16

Abstract: An emulsion of a nitrogen atom-containing polymer or salt thereof and a method for producing it are provided. The emulsion has high stability and low dispersity of the particle diameter of emulsified particles. A method for producing particles including a crosslinked nitrogen atom-containing polymer or sat thereof using the emulsion is also provided. The method for producing the emulsion includes a step of mixing a first solution that includes a nitrogen atom-containing polymer or salt thereof and a hydrophilic solvent and has a viscosity of 10 to 2,000 mPa·s, and a second solution that includes a hydrophobic solvent and has a viscosity of 1 to 100 mPa·s, stirring the mixture, and thus obtaining an emulsion of the nitrogen atom-containing polymer or salt thereof, wherein a ratio between the viscosity of the first and second solutions is in a range of 0.1:1 to 300:1.

公开(公告)号：US11147833B2

公开(公告)日：2021-10-19

申请号：US16456822

申请日：2019-06-28

Applicant: FUJIFILM Corporation ,  Kyowa Kirin Co., Ltd.

Inventor： Shinsuke Tokuoka ,  Hayato Yoshida ,  Yuichiro Kondo

IPC: A61K31/785

Abstract: The object of the present invention is to provide a therapeutic agent for hyperphosphatemia capable sufficiently decreasing a serum phosphorus concentration with a small dose. The present invention provides a therapeutic agent for hyperphosphatemia, which comprises, as an active ingredient, a particle containing certain crosslinked polymer (preferably crosslinked polyallylamine).