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Title:
WATER-DISINTEGRABLE MATERIAL AND TESTING MEMBER FOR BODILY FLUID PREPARED THEREFROM
Document Type and Number:
WIPO Patent Application WO/1991/002249
Kind Code:
A1
Abstract:
A water-disintegrable support material of the invention comprises paper made mainly of fibrous carboxymethylcellulose or carboxyethylcellulose with a degree of etherification of 0.1 to 1.0, wherein each of the fibrous cellulose derivatives has a degree of base saturation of 20 % or above and the solution or dispersion of the paper has a pH value ranging from 5.0 to 8.0. A water-disintegrable coating composition of the invention for coating the support comprises: a) at least one film-forming water-insoluble resin with a saturated moisture absorption rate of less than 15 % at a relative humidity of 90 %, b) at least one film-forming water-soluble resin with a saturated moisture absorption rate of 15 % or above, and c) a solvent for both of resins a) and b). A testing member for bodily fluids prepared by forming a reagent layer for testing the bodily fluids on at least part of the coating layer of the above material is excellent in the operability and stiffness in the test and the water-disintegrability after the test.

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Inventors:
NAGATA RYOHEI (JP)
SAITO TAKESHI (JP)
FUJIWARA TETSUYA (JP)
OKA MOTOHIRO (JP)
WATANABE MASANAO (JP)
Application Number:
PCT/JP1990/000976
Publication Date:
February 21, 1991
Filing Date:
July 31, 1990
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
C09D129/14; C09D139/06; D21H13/04; D21H19/20; D21H19/56; D21H19/60; G01N31/22; G01N33/52; G01N33/545; G01N33/548; C08L29/14; C08L39/06; (IPC1-7): D21H27/00; G01N31/22; G01N33/52
Foreign References:
JPS60139899A1985-07-24
JPH06366353B
JPH01121752A1989-05-15
Other References:
See also references of EP 0437624A4
Attorney, Agent or Firm:
Sato, Kazuo (Room 323 Fuji Bldg. 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo 100, JP)
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