Title:
BLOOD COMPATIBLE AND SHEAR SENSITIVE FORMULATION
Document Type and Number:
Japanese Patent JP2814427
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a blood compatible and shear sensitive formulation consisting of a high density polyester and hollow fine spheres and useful for promoting the separation of a blood serum or plasma from the cellular proton of blood.
SOLUTION: This blood compatible and shear sensitive formulation contains 85-97 wt.% high density polyester (e.g.; an adipate polyester) and 0.2-15 wt.% hollow fine spheres having 30-160 μ size, and further a silica, titanium dioxde, a cross-linking agent or a stabilizing agent. Preferably, this formulation for a serum/plasm separator is a viscoelastic material having 1.02-1.06 density at 25°C, 0.05 sec-1 shearing rate, 0.6×103-3.2×103 pascal sec viscosity, 0.005 distortion, and 5.3×103-2.2×103 pascal sec storage modulus of elasticity at 10 radian/ sec. In the range of 0.001-0.1 distortion interval, it is set that the storage modulus of elasticity is larger than a loss elasticity modulus or the loss elasticity modulus dose not exceed the storage modulus of elasticity.
Inventors:
Rita S. Rounds
Application Number:
JP25892595A
Publication Date:
October 22, 1998
Filing Date:
October 05, 1995
Export Citation:
Assignee:
BECTON, DICKINSON AND COMPANY
International Classes:
A61K35/14; B01D21/00; B01L3/14; C08K3/22; G01N33/48; C08K3/36; C08K7/22; C08L67/00; C08L67/02; G01N33/49; (IPC1-7): G01N33/48; A61K35/14; C08K7/22; C08L67/00
Domestic Patent References:
| JP599917A | ||||
| JP53146795A | ||||
| JP2290553A | ||||
| JP6510073A |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)
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