BLOOD SEPARATING AGENT

摘要

A blood separating agent comprising (A) a separated layers forming material formed of a copolymer of an .alpha.-olefin of 6 to 20 carbon atoms with a maleic diester and possessing a compositional ratio of 1.0 to 1.4 mols of the maleic diester per 1.0 mol of the .alpha.-olefin in the copolymer and a viscosity in the range of 100,000 to 250,000 centipoises at 25.degree.C (B) 0.12 to 0.30 part by weight, based on 100 parts by weight of said separated layers forming material, of an organic gelling agent formed of` a condensate of sorbitol and an aromatic aldehyde and the blood separating agent possessing a specific gravity in the range of 1.028 to 1.050 (at 25.degree.C), and a blood separating tube having encapsulated in a blind tube the blood separating agent.