公开(公告)号：US20170174863A1

公开(公告)日：2017-06-22

申请号：US15300464

申请日：2015-03-26

Applicant: MITSUI CHEMICALS, INC.

Inventor： Kaoru OHSHIMIZU ,  Hideto OGASAWARA ,  Hiroki EBATA ,  Takashi HAMA ,  Fumio KAGEYAMA ,  Shintaro MITSUNAGA ,  Nobuhiro TAKIZAWA ,  Akinori AMANO

IPC: C08K3/22 ,  C08G63/199 ,  H01L33/60 ,  C08K13/04 ,  C08K7/14 ,  C08L67/02 ,  C08G63/183

Abstract: The present invention addresses the problem of providing a polyester resin composition for reflective materials which gives a reflective material having a high reflectance. The polyester resin composition for reflective materials comprises: a polyester resin (A) comprising an alicyclic dicarboxylic acid ingredient unit (a1) and an aliphatic diol ingredient unit (b1); and a white pigment (B). The amount of the alicyclic dicarboxylic acid ingredient unit (a1) is 50 mol % or more of the amount of all the dicarboxylic acid ingredient units (a) in the polyester resin (A), and the amount of the aliphatic diol ingredient unit (b1) is 50 mol % or more of the amount of all the diol ingredient units (b) in the polyester resin (A). The alicyclic dicarboxylic acid ingredient unit (a1) comprises the cis and trans forms of cis-trans isomers, the proportion of the cis form determined by NMR being 20 mol % or higher.

公开(公告)号：US20170210883A1

公开(公告)日：2017-07-27

申请号：US15321448

申请日：2015-06-29

Applicant: MITSUI CHEMICALS, INC.

Inventor： Kaoru OHSHIMIZU ,  Hideto OGASAWARA ,  Hiroki EBATA ,  Takashi HAMA

IPC: C08K5/134 ,  C08K7/10 ,  F21V7/22 ,  H01L33/60 ,  G02B1/04 ,  C08K3/22 ,  C08K7/14

CPC classification number: C08K5/1345 ,  C08G63/183 ,  C08G63/199 ,  C08G69/265 ,  C08K3/22 ,  C08K7/10 ,  C08K7/14 ,  C08K2003/2241 ,  C08L67/02 ,  C08L77/06 ,  F21V7/22 ,  G02B1/04 ,  G02B5/08 ,  H01L33/60

Abstract: The purpose of the present invention is to provide a resin composition for obtaining a reflective panel that has high reflectivity, and that experiences minimal decline in reflectivity even when exposed to heat in the course of an LED package manufacturing process, a reflow soldering process during mounting of an LED package, or the like, or to heat and light from a light source in the service environment. This resin composition for a reflective panel includes 45-80 mass % of a thermoplastic resin (A) comprising at least one of a polyester resin (A1) and a polyamide resin (A2), that have a melting point (Tm) or glass transition temperature (Tg) of at least 250° C., as measured by a differential scanning calorimeter (DSC), 17-54.99% of a white pigment (B), and 0.01-3 mass % of at least one compound (C) represented by general formula (1) (wherein (A), (B), and (C) total 100 mass %).

公开(公告)号：US20170210879A1

公开(公告)日：2017-07-27

申请号：US15321492

申请日：2015-06-29

Applicant: Mitsui Chemicals, Inc.

Inventor： Kaoru OHSHIMIZU ,  Hideto OGASAWARA ,  Hiroki EBATA ,  Takashi HAMA

IPC: C08K3/22 ,  H01L33/60 ,  C08G63/199 ,  C08K7/14 ,  C08K3/34

CPC classification number: C08K3/22 ,  C08G63/199 ,  C08K3/34 ,  C08K7/10 ,  C08K7/14 ,  C08K2003/2237 ,  C08K2003/2241 ,  C08K2201/003 ,  C08K2201/004 ,  C08K2201/016 ,  C08L67/02 ,  H01L33/60 ,  H01L2933/0058

Abstract: The purpose of the present invention is to provide a polyester resin composition for a reflection plate having high reflectance and small decrease of reflectance under exposure to heat during production of an LED package or reflow soldering step for mounting, or exposure to heat and light from a light source. A polyester resin composition of the present invention contains: 30-80% by mass of (A) a polyester resin having a melting point or glass transition temperature of 250° C. or more as measured by DSC; 5-30% by mass of (B) a fibrous reinforcing material having an average fiber length (l) of 2-300 μm, an average fiber diameter (d) of 0.05-18 μm and an aspect ratio (l/d) of 2-20, said aspect ratio being a quotient of 1 by d; and 5-50% by mass of (C) a white pigment (with the total of (A), (B) and (C) being 100% by mass).

公开(公告)号：US20210284862A1

公开(公告)日：2021-09-16

申请号：US16326661

申请日：2017-08-25

Applicant: Mitsui Chemicals, Inc. ,  Chemat Technology, Inc.

Inventor： Takayuki HANAWA ,  Koju OKAZAKI ,  Kaoru OHSHIMIZU ,  Motoharu OIKI ,  Ken TAKAMATSU ,  Haixing ZHENG

IPC: C09D133/14 ,  B32B7/12 ,  B32B7/023 ,  B32B27/20 ,  C09J133/14 ,  C08F120/32 ,  C03C17/00 ,  G02B1/18 ,  G02B1/11

Abstract: Provided is a laminate that includes a water absorbing layer (B), an antireflective function-imparting layer (C) and a hydrophilic layer (A) provided in this order on a substrate, wherein the hydrophilic layer (A) is formed of a crosslinked resin having an anionic, cationic or nonionic hydrophilic group, and has a gradient of hydrophilic groups (intensity of hydrophilic group on surface of the hydrophilic layer (A)/intensity of hydrophilic group at ½ of thickness of the hydrophilic layer (A)) of not less than 1.1; the water absorbing layer (B) is formed of a crosslinked resin having a water absorption rate per unit mass (g) of in the range of 5 to 500 wt %; and the refractive index of a layer forming the layer (C) satisfies a specific condition. The laminate can provide higher antifogging properties and antireflective properties.

公开(公告)号：US20210017128A1

公开(公告)日：2021-01-21

申请号：US17043307

申请日：2019-03-29

Applicant: MITSUI CHEMICALS, INC.

Inventor： Hironori KUBOI ,  Kaoru OHSHIMIZU

IPC: C07C319/08 ,  C08G18/38 ,  C08G18/72 ,  C07C327/22 ,  B29C45/00 ,  B29D11/00 ,  G02B1/04

Abstract: A method for producing an organic mercapto compound or an intermediate thereof according to the present invention has a reaction step of reacting an alcohol compound including a sulfur atom with a thioamide compound having a structure in which an organic group is bonded to at least one bonding hand of a thioamide group, under acidic conditions.