公开(公告)号：US20210324226A1

公开(公告)日：2021-10-21

申请号：US17280185

申请日：2020-03-09

申请人： GOO CHEMICAL CO., LTD. ,  Panasonic Intellectual Property Management Co., Ltd.

发明人： Teru SAKAKIBARA ,  Shinya KOMABIKI ,  Koji MAEDA ,  Hidehiko KARASAKI

IPC分类号： C09D167/02 ,  C08G63/189 ,  C08G63/183 ,  H01L21/683 ,  H01L21/78

摘要： A protective composition contains a water-soluble polyester resin including a polyvalent carboxylic acid residue and a polyvalent alcohol residue. The polyvalent carboxylic acid residue includes: a polyvalent carboxylic acid residue having a metal sulfonate group; and a naphthalene dicarboxylic acid residue. The proportion of the polyvalent carboxylic acid residue to the polyvalent carboxylic acid residue falls within the range from 25 mol % to 70 mol %. The proportion of the naphthalene dicarboxylic acid residue to the polyvalent carboxylic acid residue falls within the range from 30 mol % to 75 mol %.

公开(公告)号：US20220145094A1

公开(公告)日：2022-05-12

申请号：US17283549

申请日：2020-03-09

申请人： GOO CHEMICAL CO., LTD.

发明人： Teru SAKAKIBARA ,  Shinya KOMABIKI ,  Koji MAEDA

IPC分类号： C09D5/08 ,  C08G63/183 ,  C08G63/189 ,  C08G63/199 ,  C08G63/672 ,  C09D167/02

摘要： A protective composition is used to form a protective coating on a metal and contains a water-soluble polyester resin.

公开(公告)号：US20240174799A1

公开(公告)日：2024-05-30

申请号：US18552898

申请日：2022-03-09

申请人： GOO CHEMICAL CO., LTD.

发明人： Teru SAKAKIBARA ,  Shinya KOMABIKI

IPC分类号： C08G63/688 ,  C08G63/78 ,  C09D167/02

CPC分类号： C08G63/6886 ,  C08G63/78 ,  C09D167/02

摘要： A method for producing a water-based polyester resin includes a first step and a second step. The first step includes causing an ester formation reaction and a depolymerization reaction using a recycled polyester, a polycarboxylic acid component including a polycarboxylic acid residue and excluding terephthalic acid, and a polyalcohol component. The second step includes causing a polycondensation reaction by reducing pressure. The first step includes using: the recycled polyester to such an amount that makes proportion of a terephthalic acid residue equal to or greater than 20% by mass and equal to or less than 72% by mass; and a metal-sulfonate-group-containing polycarboxylic acid compound to such an amount that makes proportion of the metal-sulfonate-group-containing polycarboxylic acid residue equal to or greater than 5% by mass and equal to or less than 32% by mass. The resin thus produced has an acid value equal to or less than 10 mgKOH/g.