公开(公告)号：EP4442287A1

公开(公告)日：2024-10-09

申请号：EP22901259.6

申请日：2022-11-29

申请人： DKS Co. Ltd. ,  Kyushu University, National University Corporation

发明人： NISHIMURA Takuma ,  SHIOJI Yudai ,  TANABE Shichidai ,  NISHIURA Masahito ,  KOBAYASHI Shingo ,  TANAKA Masaru

IPC分类号： A61L27/18 ,  A61L29/06 ,  A61L31/06 ,  C08G18/28 ,  C08G18/44 ,  C08G18/48 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76

CPC分类号： A61L27/18 ,  A61L29/06 ,  A61L31/06 ,  C08G18/28 ,  C08G18/44 ,  C08G18/48 ,  C08G18/75 ,  C08G18/76 ,  C08G18/73

摘要： Provided is a medical device containing a polyurethane resin elastomer that can achieve both biocompatibility and physical properties. The medical device in an embodiment contains a polyurethane resin elastomer and water contained in the polyurethane resin elastomer. The polyurethane resin elastomer contains polyethylene glycol and a polyisocyanate as constituents, the polyethylene glycol has a number average molecular weight of 200 or more and 2200 or less, and the polyethylene glycol is present in an amount of 1 mass% or higher and lower than 50 mass% based on 100 mass% of the constituents of the polyurethane resin elastomer.

公开(公告)号：EP4296054A1

公开(公告)日：2023-12-27

申请号：EP22755904.4

申请日：2022-01-31

申请人： DKS Co. Ltd.

发明人： NISHIMURA Takuma ,  MIZUKAMI Shinya

IPC分类号： B32B27/12 ,  B32B27/40 ,  C08L75/06 ,  C08G18/10 ,  C08G18/32 ,  C08G18/44

摘要： Provided is a technique that provides high durability and high flexibility at low temperatures.
A polyurethane resin composition is produced by chain-extending, using polyamine, a reaction product between a polyol including a polycarbonate polyol including a structural unit derived from 1,10-decanediol, a polyhydric alcohol including, as functional groups, three or more hydroxy groups alone and having a number-average molecular weight of 420 or more and 2000 or less, and a polyol including an anionic hydrophilic group, and polyisocyanate.

公开(公告)号：EP4296424A1

公开(公告)日：2023-12-27

申请号：EP22755903.6

申请日：2022-01-31

申请人： DKS Co. Ltd.

发明人： KANEKO Fumiya ,  NISHIMURA Takuma ,  MIZUKAMI Shinya

IPC分类号： D06N3/14 ,  C08L75/08 ,  C08G18/10 ,  C08G18/32

摘要： Provided is a technique that provides high durability and high flexibility at low temperatures.
A polyurethane resin composition is produced by chain-extending, using polyamine, a reaction product between a polyol including at least one polyether polyol of polytetramethylene ether glycol or polypropylene glycol, 1,10-decanediol, and a polyol including an anionic hydrophilic group, and polyisocyanate.

公开(公告)号：EP4091644A1

公开(公告)日：2022-11-23

申请号：EP21741074.5

申请日：2021-01-13

申请人： DKS Co. Ltd.

发明人： NISHIMURA Takuma ,  NISHIURA Masahito

IPC分类号： A61L33/06 ,  C08J7/04

摘要： Provided is a technology for exhibiting good antithrombogenicity.
A polyurethane or polyurethane urea has a graft chain having a specific structure. Two functional groups included in the specific structure are each an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms and may be the same or different from each other.