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US 2023/0100493 A1Published application
Polyurethane or polyurethane urea, antithrombogenic coating agent, antithrombogenic medical tool, and production method
AssigneeDKS Co. Ltd.
InventorsTakuma NISHIMURA, Masahito NISHIURA
Life of this patent
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Abstract
Provided is a technology for exhibiting good ant ithrombogenicity. 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.
Claims20
A polyurethane, comprising:
- a graft chain including a structure of formula (1)
- wherein (each of R1 and R2 is 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 R1 and R2 are the same or different from each other.
A polyurethane urea, comprising:
- a graft chain including a structure of formula (1)
- wherein each of R1 and R2 is 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 R1 and R2 are the same or different from each other.
Dependencies are inferred from the claim text.