专利检索 ap:("KURARAY CO., LTD.") AND inv:"Azusa OSHITA" 第 1 页

1.

发明申请
POLYURETHANE FOR POLISHING LAYER, POLISHING LAYER INCLUDING POLYURETHANE AND MODIFICATION METHOD OF THE POLISHING LAYER, POLISHING PAD, AND POLISHING METHOD 有权

公开(公告)号：US20210087325A1

公开(公告)日：2021-03-25

申请号：US17107016

申请日：2020-11-30

申请人： KURARAY CO., LTD.

发明人： Azusa OSHITA , Minori TAKEGOSHI , Mitsuru KATO , Chihiro OKAMOTO , Shinya KATO

IPC分类号： C08G18/38 , B24B37/24 , C08G18/32 , C08G18/76 , H01L21/3105 , H01L21/321 , C08G18/08 , B24D3/00 , B24D3/34

摘要： A Schiff base-containing chain extender may be a diol having a Schiff base or a derivative thereof, as well as a polyurethane produced using the same and a modification method thereof, and a polishing layer including a polyurethane and a polishing method using the polishing layer.

2.

发明申请
MODIFICATION METHOD OF POLYURETHANE, POLYURETHANE, POLISHING PAD, AND MODIFICATION METHOD OF POLISHING PAD 有权

公开(公告)号：US20210276143A1

公开(公告)日：2021-09-09

申请号：US17054049

申请日：2019-04-26

申请人： KURARAY CO., LTD.

发明人： Azusa OSHITA , Mitsuru KATO , Minori TAKEGOSHI , Chihiro OKAMOTO , Shinya KATO

IPC分类号： B24B37/24 , C08G18/83 , C08G18/69

摘要： A modification method of a polyurethane, including the steps of: preparing a polyurethane having an ethylenically unsaturated bond; and treating the polyurethane with a liquid containing a compound having a conjugated double bond, or a modification method of a polyurethane, including the steps of: preparing a polyurethane having a conjugated double bond; and treating the polyurethane with a liquid containing a compound having an ethylenically unsaturated bond is used.

3.

发明公开
MODIFICATION METHOD OF POLYURETHANE, POLYURETHANE, POLISHING PAD, AND MODIFICATION METHOD OF POLISHING PAD 审中-公开

公开(公告)号：US20240342858A1

公开(公告)日：2024-10-17

申请号：US18753038

申请日：2024-06-25

申请人： KURARAY CO., LTD.

发明人： Azusa OSHITA , Mitsuru KATO , Minori TAKEGOSHI , Chihiro OKAMOTO , Shinya KATO

IPC分类号： B24B37/24 , C08G18/69 , C08G18/83 , H01L21/306

CPC分类号： B24B37/24 , C08G18/692 , C08G18/83 , H01L21/30625

摘要： A modification method of a polyurethane, including the steps of: preparing a polyurethane having an ethylenically unsaturated bond; and treating the polyurethane with a liquid containing a compound having a conjugated double bond, or a modification method of a polyurethane, including the steps of: preparing a polyurethane having a conjugated double bond; and treating the polyurethane with a liquid containing a compound having an ethylenically unsaturated bond is used.