Antithrombogenic elastomer, molded products of the same, and a process for manufacturing the same
AssigneeKanegafuchi Kagaku Kogyo Kabushiki Kaisha
InventorKazuaki Kira
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Abstract
Antithrombogenic elastomers comprising polyurethane or polyurethane urea, containing an organic silicone polymer in the main chain. A process for manufacturing such elastomers and molded products of such elastomers, are also disclosed.
Claims14
An antithrombogenic elastomer for medical use comprising thermoplastic polyurethane or polyurethane urea containing 4 to 15 weight percent of polysiloxane having a molecular weight of 500 to 10,000 in the main chain, and containing a polyether or a polyester having a molecular weight of 500 to 6,000 as a soft segment other than said polysiloxane.
An antithrombogenic molded product for medical use composed of an antithrombogenic elastomer comprising thermoplastic polyurethane or polyurethane urea containing 4 to 15 weight percent of polysiloxane having a molecular weight of 500 to 10,000 in the main chain, and containing a polyether or a polyester having a molecular weight of 500 to 6,000 as a soft segment apart from said polysiloxane.
Dependencies are inferred from the claim text.