# US 9,775,342 B2 · Powdery pesticidal composition

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- Number: US 9,775,342 B2
- Document ID: US9775342B2
- Status: Granted
- Kind: B2
- Application number: 12/439,701
- Filed: 2007-09-10
- Published: 2010-03-04
- Granted: 2017-10-03
- Earliest claimed: 2006-09-22
- Assignees: Sumitomo Chemical Company, Limited
- Applicants: Takatoshi Terada; Manabu Tagami
- Inventors: Takatoshi Terada; Manabu Tagami
- Web page: https://patentgrep.com/patent/US9775342B2

## CPC

- A01N 25/12: Powders or granules (A01N25/26 takes precedence)
- A01N 25/08: containing solids as carriers or diluents
- A01N 25/26: in coated particulate form
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

Disclosed is a powdery pesticidal composition which comprises a mixture of a coated pesticide comprising a powdery pesticide coated with a thermosetting resin and having a volume median diameter of 10 to 150 μm and a calcium carbonate micropowder having a bulk density of 0.6 g/ml or less, wherein the weight-based ratio of the coated pesticide to the calcium carbonate micropowder is 100:1 to 100:30. The powdery pesticidal composition has good fluidability.

## Claims

### Claim 1

A powdery pesticidal composition comprising a mixture of a coated pesticide having a volume median diameter of 10 to 150 μm in which a powdery agrichemical is coated with a themosetting resin, and a calcium carbonate micropowder having a bulk density of 0.6 g/ml or less, wherein the weight ratio of the coated pesticide to the calcium carbonate micropowder is in the range of 100:1 to 100:30.

### Claim 2 (depends on 1)

The powdery pesticidal composition according to claim 1, wherein the thermosetting resin is a polyurethane resin and/or a polyurea resin.

### Claim 3 (depends on 1, 2)

The powdery pesticidal composition according to claim 1 or 2, wherein the bulk density of the calcium carbonate micropowder is in the range of 0.01 to 0.3 g/ml.

### Claim 4

A method for improving flowability of a powdery coated pesticide which comprises adding a calcium carbonate micropowder having a bulk density of 0.6 g/ml or less to a powdery coated pesticide in which a powdery pesticide is coated with a thermosetting resin, in such an amount that the weight ratio of the powdery coated pesticide and the calcium carbonate micropowder is in the range of 100:1 to 100:30.