Anticoagulative high-molecular compositions
AssigneeDaicel Chemical Industries, Ltd.
InventorsHiroshi Inagaki, Takeaki Miyamoto, Hiraku Ito, Tohru Shibata
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Abstract
Anticoagulative high-molecular composition which comprises a cellulosic polyelectrolyte complex formed from a polycationic cellulose derivative such as a quaternary ammonium salt of hydroxyalkyl cellulose, and a polyanionic cellulose such as sodium cellulose glycolate, which is used in the field of medical instruments or devices.
Claims15
An anticoagulative high-molecular composition which comprises a cellulosic polyelectrolyte complex formed from ( 1) a polycationic cellulose derivative selected from the group consisting of a quaternary ammonium salt of a hydroxyalkyl cellulose, aminoethylcellulose and diethylaminoethylcellulose, and (2) a cellulose ether or cellulose ester polyanionic cellulose derivative.
A method of treating blood for preventing coagulation of said blood comprising contacting the blood with a surface comprising an effective amount of a cellulosic polyelectrolyte complex for imparting anticoagulative properties to said surface, the complex being formed from (1) a polycationic cellulose derivative comprising a reaction product of cellulose or a cellulose derivative having free hydroxyl groups with an aminating agent, or with a quaternary ammonium salt cationizing agent;
- and (2) a cellulose ether or cellulose ester polyanionic cellulose derivative.
Dependencies are inferred from the claim text.