The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1998
Filed:
Dec. 11, 1996
Hiroshi Mikami, Kanagawa, JP;
Kenshin Nakahara, Okayama, JP;
Mariko Kimura, Kanagawa, JP;
Toshikazu Ishii, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
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.