公开(公告)号：US20170306093A1

公开(公告)日：2017-10-26

申请号：US15518106

申请日：2015-10-15

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Teruhisa MATSUMARU ,  Yuuki SATO ,  Shuya SUENAGA ,  Masayuki DAITO ,  Kazuaki MUKASA

IPC分类号： C08G73/10 ,  C08L79/08 ,  B32B27/28

CPC分类号： C08G73/1039 ,  B32B15/08 ,  B32B17/064 ,  B32B27/20 ,  B32B27/281 ,  B32B2264/102 ,  B32B2307/306 ,  B32B2307/412 ,  B32B2307/536 ,  B32B2307/546 ,  B32B2457/20 ,  C08G73/10 ,  C08J5/18 ,  C08J7/04 ,  C08K3/36 ,  C08L79/08

摘要： The present invention provides a polyimide resin composition capable of forming a film having heat resistance and transparency and, in addition thereto, mechanical strength, surface hardness and flex resistance, a polyimide resin, a polyimide film and a laminate. The present invention includes: a polyimide resin composition containing a polyimide resin that has structural units represented by specific structures in a specific ratio, containing silica fine particles; the polyimide resin; a polyimide film; and a laminate.

公开(公告)号：US20230123413A1

公开(公告)日：2023-04-20

申请号：US17800752

申请日：2021-02-25

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： Kosuke OTSUKA ,  Masayuki DAITO ,  Takumi YAMADA

IPC分类号： B32B27/08 ,  B32B27/34 ,  B32B27/36 ,  B32B27/20

摘要： Provided is a multilayer container including a polyester layer containing a polyester resin (X), and a polyamide layer containing a polyamide resin (Y), a yellowing inhibitor (A), and an oxidation accelerator (B). The content of the polyamide resin (Y) is from 0.05 to 7.0 mass% relative to the total amount of all polyamide layers and all polyester layers. The yellowing inhibitor (A) is a dye, and the content of the yellowing inhibitor (A) is from 1 to 30 ppm relative to the total amount of all polyamide layers and all polyester layers.

公开(公告)号：US20230102641A1

公开(公告)日：2023-03-30

申请号：US17798818

申请日：2021-02-02

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： Kosuke OTSUKA ,  Takumi YAMADA ,  Masayuki DAITO

IPC分类号： B65D1/02 ,  B32B27/08 ,  B32B27/34 ,  B32B27/36 ,  B32B27/20 ,  C08G63/183 ,  C08G69/26

摘要： Provided is a multilayer container including: a polyester layer containing a polyester resin (X); and a polyamide layer containing a polyamide resin (Y) and a yellowing inhibitor (A). The content of the polyamide resin (Y) is from 0.05 to 7.0 mass % relative to a total amount of all polyamide layers and all polyester layers, and the content of the yellowing inhibitor (A) is from 1 to 30 ppm relative to the total amount of all polyamide layers and all polyester layers. Also provided are a method for manufacturing the multilayer container, and a method for manufacturing a recycled polyester, the method thereof including a step of recovering polyester from the multilayer container.