US 12,428,538 B2
Modified fibrous wollastonite and method of producing the same
Hideki Yoshida, Tokushima (JP); Hirofumi Ooguri, Komatsushima (JP); and Yuji Akazawa, Tokushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Apr. 23, 2024, as Appl. No. 18/643,873.
Application 18/643,873 is a division of application No. 15/989,112, filed on May 24, 2018, granted, now 11,993,696.
Claims priority of application No. 2017-104814 (JP), filed on May 26, 2017.
Prior Publication US 2024/0270932 A1, Aug. 15, 2024
Int. Cl. C08K 3/34 (2006.01); C01B 33/24 (2006.01); C08K 7/10 (2006.01)
CPC C08K 3/34 (2013.01) [C01B 33/24 (2013.01); C08K 7/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fibrous wollastonite in which Al, Fe, and Si are detected by surface analysis by time-of-flight secondary ion mass spectrometry, with a detection intensity ratio of Fe to Si being less than 0.13, a detection intensity ratio of Al to Fe being 5 or more and 50 or less, and a detection intensity ratio of Al to Si being greater than 0.03 to less than 1.08,
wherein Al and Fe are impurities, and
wherein an average fiber length of the fibrous wollastonite is in a range of 3 μm to 100 μm.