申请人:SEKISUI CHEMICAL CO., LTD.
公开号:EP0566794A1
公开(公告)日:1993-10-27
The invention provides a serum or plasma separating composition which comprises a cyclopentadiene resin, a viscosity adjusting agent and an organic gelling agent. The composition is characterized in that the cyclopentadiene resin is a liquid resin at a temperature of 25o C, the viscosity adjusting agent being a liquid ester obtained from propionic acid, butyric acid, benzoic acid or phthalic acid, the organic gelling agent being a condensation product of sorbitol and an aromatic aldehyde, the composition containing 0.8 to 25 parts by weight of the viscosity adjusting agent and 0.03 to 0.9 part by weight of the organic gelling agent per 100 parts by weight of the cyclopentadiene resin. The composition forms a satisfactory separating layer even when subjected to a centrifugal separation operation at a set temperature of 4o C.
本发明提供了一种血清或血浆分离组合物,它由环戊二烯树脂、粘度调节剂和有机胶凝剂组成。该组合物的特征在于,环戊二烯树脂在 25o C 的温度下是液态树脂,粘度调节剂是由丙酸、丁酸、苯甲酸或邻苯二甲酸得到的液态酯,有机胶凝剂是山梨醇和芳香醛的缩合产物,该组合物含有 0.每 100 份环戊二烯树脂含有 0.8 至 25 份(按重量计)粘度调节剂和 0.03 至 0.9 份(按重量计)有机胶凝剂。即使在 4 摄氏度的设定温度下进行离心分离操作,该组合物也能形成令人满意的分离层。