Importance

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Abstract

A process for the production of a blood separating agent is disclosed which comprises supplying a mixture solution containing (a) a separation layer forming high molecular weight compound as the main component and (b) a thixotropy-providing agent selected from the group consisting of inorganic fine particles and organic gelling agents into a cylinder block of a homogenizer having the cylinder block equipped with a plunger capable of performing reciprocating movement and a valve body which is connected thereto and equipped with a valve member, a valve sheet and an impact ring, and applying a compressive shearing stress to the mixture in said homogenizer at such a temperature that viscosity of the solution becomes 1.times.10.sup.4 centipoises or less, thereby obtaining a blood separating agent in the form of a dispersion or a uniform gel. A blood separating agent having excellent storage stability can be obtained with improved productivity per unit time.

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First Claim