US 12,454,607 B2
Composite oxide particle material, method for producing same, filler, filler-containing slurry composition, and filler-containing resin composition
Keisuke Kurita, Miyoshi (JP); Nobutaka Tomita, Miyoshi (JP); and Yuki Arai, Miyoshi (JP)
Assigned to ADMATECHS CO., LTD., Miyoshi (JP)
Filed by ADMATECHS CO., LTD., Miyoshi (JP)
Filed on Jul. 31, 2024, as Appl. No. 18/790,034.
Application 18/790,034 is a continuation of application No. PCT/JP2022/008048, filed on Feb. 25, 2022.
Claims priority of application No. 2022-014092 (JP), filed on Feb. 1, 2022.
Prior Publication US 2024/0392110 A1, Nov. 28, 2024
Int. Cl. C08K 3/22 (2006.01); C01G 39/00 (2006.01); C08K 9/06 (2006.01); C09C 1/00 (2006.01); C09C 3/12 (2006.01)
CPC C08K 9/06 (2013.01) [C01G 39/006 (2013.01); C09C 1/0003 (2013.01); C09C 3/12 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2002/82 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01); C08K 2003/2255 (2013.01); C08K 2003/2296 (2013.01)] 16 Claims
 
1. A composite oxide particle material formed of a composite oxide of molybdenum and zinc, the composite oxide particle material having
an average particle diameter of 0.1 μm or more and 5.0 μm or less,
a BET specific surface area of 1 m2/g or more and 20 m2/g or less, and
an impurity concentration, which is a concentration of metal molybdenum, metal zinc, molybdenum oxide and/or zinc oxide, of 1 mass % or less and a circularity of 0.90 or more,
wherein the composite oxide particle material is produced by the method comprising continuously putting a particle raw material comprising metal molybdenum and metal zinc in a state of being dispersed in a carrier into flame in an oxidizing atmosphere, to burn the particle raw material, wherein a ratio (R/T) between: an oxygen amount R per unit time to be introduced into the oxidizing atmosphere; and an oxygen amount T per unit time necessary for completely oxidizing the particle raw material and a combustible gas is 1.2 or more.