Manufacture of plasma albumin permeable hollow yarn membrane

Abstract

Abstract PURPOSE:To obtain a hollow yarn membrane having about 0.01-0.1mu small bore diameter of the hollow yarn membrane and excellent albumin permeability by using an original spinning liquid in the coexistence with calcium chloride. CONSTITUTION:The yarn is spun with a wet method by using an original spinning liquid consisting essentially of >=1 kind selected from nitrogen-contg. compds. shown by the formula, cellulose ester, ketone, lower alcohol, and bivalent metallic salt. As the preferable manufacture, the yarn is spun with the wet method by using the original spinning liquid which is prepared by adding the nitrogen-contg. compd. shown by the formula, considered to have affinity for an acetic acid group of the polymer, to a mixed solvent of acetone-methanol and a high molecular compd. consisting essentially of cellulose acetate, and further adding calcium chloride.

Inventors

• 👤 Eiichi Murakami
• 👤 瑛一 村上
• 👤 Eiji Masunaga
• 👤 益永　栄二

Bibliographic Details