EP0173964A2
Expired / Lapsed
EP
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A biocidal fine powder, its manufacturing method and a suspension for agricultural use containing the above powder
Assignee: Kao Corp
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Filing: 1985-08-29
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Granted: —
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Expires: 2005-08-29
Abstract
Abstract A biocidal powder having a notably reinforced biological effect contains at least 50 wt% of particles having diameter of 0.5 micron or less. A suspension containing the above powder is prepared by mixing a dispersion liquid which comprises a biocidal substance and a specified dispersing agent such as a polymer of styrene sulfonate with rigid media having particle diameter of 0.5 mm or less. Thus obtained suspension is applicable to germicides, herbicides, insecticides, miticides and the like.
Inventors
- 👤 Tetsuji Iwasaki
- 👤 Yasushi Kamishisa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 12:53
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/12; A01N25/14; A01N25/02; A01N25/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
18 words
A biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less.
Claim 2
Dependent Claim
18 words
A biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less.
Claim 3
Independent Claim
45 words
A method of manufacturing a biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less which is characterized by mixing a dispersion liquid of a biocidal substance with rigid media having particle diameter of 0.5 mm or less.
Claim 4
Independent Claim
45 words
A method of manufacturing a biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less which is characterized by mixing a dispersion liquid of a biocidal substance with rigid media having particle diameter of 0.5 mm or less.
Claim 5
Dependent Claim
112 words
A method of manufacturing a blocoidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less as set forth in Claim 2 wherein said dispersion liquid of a biocidal substance also contains at least one dispersing agent selected from the group consisting of (1) to (3): (1) A water-soluble or water-dispersible polymer containing as its essential component, at least one compound selected from the monomer group consisting of unsaturated carboxylic acids and their derivatives; (2) A polymer of styrene sulfonate; (3) A formalin condensate or a salt thereof of the sulfonation product of a polycyclic aromatic compound which may contain a hydrocarbon group as a substituent.
Claim 6
Dependent Claim
29 words
A suspension for agricultural use which contains as its effective component a biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less.
Claim 7
Dependent Claim
29 words
A suspension for agricultural use which contains as its effective component a biocidal fine powder containing at least 50 wt% of particles with diameter of 0.5 micron or less.
Claim 8
Dependent Claim
46 words
A suspension for agricultural use as set forth in Claim 4 which contains, in addition to the biocidal fine powder, a compound selected from the group consisting of (i) and (ii): (i) Polyoxyalkylene-type nonionic surface active agent; (ii) Polyoxyalkylene alkyl (alkylaryl) ether phosphate or its salt.
References Cited (Backward Citations)
No citation records indexed.
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