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.

Date of Patent:
Feb. 04, 2014

Filed:

Feb. 15, 2011
Applicants:

Tomonori Inoue, Shunan, JP;

Ryusuke Okamoto, Shunan, JP;

Inventors:

Tomonori Inoue, Shunan, JP;

Ryusuke Okamoto, Shunan, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a blood separating agent that can form an excellent partition wall in an intermediate layer between clot and serum or between blood cell components and plasma even under low-temperature centrifugation conditions, is less likely to form crevices in the partition wall, is less likely to have any effect on test values, and offers stable performance even after long-term storage. The blood separating agent contains: a polymer for the blood separating agent which is composed of a (meth)acrylic acid ester-based polymer and has a viscosity of 10 to 200 Pa·s at 25° C. and a ratio of viscosity at 15° C. to viscosity at 25° C. of below 4.6; an inorganic powder; and a polyalkylene glycol having a number average molecular weight of 700 or more, wherein the polyalkylene glycol is mixed at a concentration of 5% by weight or less of the total weight of the blood separating agent.


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