Water dispersible granules
AssigneeSumitomo Chemical Company, Limited
InventorsRie Takabe, Seiji Iuchi
Life of this patent
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Abstract
Water dispersible granules are provided containing (a) an agrochemical active ingredient that is solid at 25° C., (b) a polyoxyalkylene alkyl ether phosphate or its salt, (c) at least one anionic surfactant selected from the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates, and (d) lactose. The granules are water dispersible granules having good disintegrability and dispersibility in water and also having good storage stability. The water dispersible granules can be disintegrated and dispersed in a small amount of water. Accordingly, the water dispersible granules can be mixed with paste fertilizers to produce agrochemical-containing paste fertilizers, which can also be used in paddy fields and are useful water dispersible granules.
Claims21
Water dispersible granules, comprising:
- (a) an agrochemical active ingredient that is solid at 25° C.;
- (b) a polyoxyalkylene alkyl ether phosphate or its salt;
- (c) at least one anionic surfactant selected from the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates;
- and
- (d) lactose.
A method for producing water dispersible granules, comprising:
- adding water to a mixture containing:
- (a) an agrochemical active ingredient that is solid at 25° C.;
- (b) a polyoxyalkylene alkyl ether phosphate or its salt;
- (c) at least one anionic surfactant selected from the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates;
- and
- (d) lactose;
- kneading the mixture;
- and
- granulating the kneaded mixture by a wet extrusion granulation method.
An agrochemical-containing paste fertilizer, comprising:
- (a) an agrochemical active ingredient that is solid at 25° C.;
- (b) a polyoxyalkylene alkyl ether phosphate or its salt;
- (c) at least one anionic surfactant selected the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates;
- (d) lactose;
- and
- (e) a fertilizer ingredient.
An agrochemical-containing liquid fertilizer, comprising:
- (a) an agrochemical active ingredient that is solid at 25° C.;
- (b) a polyoxyalkylene alkyl ether phosphate or its salt;
- (b) a polyoxyalkylene alkyl ether phosphate or its salt;
- (c) at least one anionic surfactant selected the group consisting of arylsulfonates or their formaldehyde condensates, ligninsulfonates, and polycarboxylates;
- (d) lactose;
- and
- (e) a fertilizer ingredient.
Dependencies are inferred from the claim text.