EP0160916A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Part of an analytical element for the analysis of a solid in a liquid sample
Assignee: Fujifilm Holdings Corp
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Filing: 1985-04-29
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Granted: —
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Expires: 2005-04-29
Abstract
Abstract A member of an analytical element for the analysis of a liquid sample containing solid material, comprising a volume filtration layer composed of a fibrous material and a spreading layer having a liquid-retaining capacity larger than that of the volume filtration layer, in which the volume filtration layer and the spreading layer are united to give an integrated structure. The spreading layer may be composed of a fibrous material, a woven cloth, a knitted cloth or a non-fibrous porous medium.
Inventors
- 👤 Nobuhito Masuda
- 👤 Takeshi Igarashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 05:25
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525; Y; Y10; Y10S; Y10S435/00; Y10S435/805; Y10T; Y10T436/00; Y10T436/25; Y10T436/25375
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
59 words
A member of an analytical element for the analysis of a liquid sample containing solid material, comprising a volume filtration layer composed of a fibrous material and a spreading layer having a liquid-retaining capacity larger than that of the volume filtration layer, in which the volume filtration layer and the spreading layer are united to give an integrated structure.
Claim 2
Dependent Claim
59 words
A member of an analytical element for the analysis of a liquid sample containing solid material, comprising a volume filtration layer composed of a fibrous material and a spreading layer having a liquid-retaining capacity larger than that of the volume filtration layer, in which the volume filtration layer and the spreading layer are united to give an integrated structure.
Claim 3
Dependent Claim
27 words
The member of an analytical element as claimed in claim 1, wherein said volume filtration layer has a density of 0.02 to 0.1 g./ cm 3 .
Claim 4
Dependent Claim
25 words
The member of an analytical element as claimed in claim 1, wherein said integral structure has been formed by a filtration or a paper-making process.
Claim 5
Dependent Claim
33 words
The member of an analytical element as claimed in claim 1 or 2, wherein said fibrous material has a diameter of 0.1 to 1.0 µm and a length of 10 - 4,000 µm.
Claim 6
Dependent Claim
24 words
The member of an analytical element as claimed in claim 1 or 2, wherein said member has a thickness of 100 to 2,000 µm.
Claim 7
Dependent Claim
23 words
The member of an analytical element as claimed in claim 1 or 2, wherein said spreding layer is composed of a fibrous material.
Claim 8
Dependent Claim
38 words
The member of an analytical element as claimed in claim 6, wherein the fibers of the fibrous materials of said volume filtration layer and said spreading layer are intertwined with one another on the interface between both layers.
Claim 9
Dependent Claim
25 words
The member of an analytical element as claimed in claim 6, wherein said spreading layer has a density of 0.1 to 2.0 g./cm 3 .
Claim 10
Dependent Claim
35 words
The member of an analytical element as claimed in claim 6, wherein said fibrous material of said spreading layer has a diameter of 0.1 to 1.0 µm and a length of 10 - 4,000 µm.
Claim 11
Dependent Claim
25 words
The member of an analytical element as claimed in claim 1 or 2, wherein said spreding layer is composed of a woven or knitted cloth.
Claim 12
Dependent Claim
38 words
The member of an analytical element as claimed in claim 10, wherein the fibers of the fibrous materials of said volume filtration layer and said spreading layer are intertwined with one another on the interface between both layers.
Claim 13
Dependent Claim
25 words
The member of an analytical element as claimed in claim 10, wherein said spreading layer has a density of 0.05 to 1.0 g./cm 3 .
Claim 14
Dependent Claim
37 words
The member of an analytical element as claimed in claim 10, wherein said spreading layer composed of a woven cloth manufactured using fibers of a diameter of 20S to 150S in terms of cotton spun yarn count.
Claim 15
Dependent Claim
37 words
The member of an analytical element as claimed in claim 10, wherein said spreading layer composed of a knitted cloth manufactured using fibers of a diameter of 40S to 150S in terms of cotton spun yarn count.
Claim 16
Dependent Claim
24 words
The member of an analytical element as claimed in claim 1 or 2, wherein said spreding layer is composed of a non-fibrous porous medium.
Claim 17
Dependent Claim
31 words
The member of an analytical element as claimed in claim 15, wherein the fibers of the fibrous material of said volume filtration layer are anchored to micropores of said spreading layer.
Claim 18
Dependent Claim
22 words
The member of an analytical element as claimed in claim 15, wherein said non-fibrous porous medium is made of a blushed polymer.
References Cited (Backward Citations)
No citation records indexed.
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