US 12,109,335 B2
Composition for acoustic wave probe, silicone resin for acoustic wave probe, acoustic wave probe, ultrasound probe, acoustic wave measurement apparatus, ultrasound diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope
Yoshihiro Nakai, Kanagawa (JP); Shigeki Uehira, Kanagawa (JP); Taichi Kitagawa, Annaka (JP); and Nobuaki Matsumoto, Annaka (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP); and Shin-Etsu Chemical Co., Ltd., Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP); and Shin-Etsu Chemical Co., Ltd., Tokyo (JP)
Filed on Mar. 6, 2020, as Appl. No. 16/811,636.
Application 16/811,636 is a continuation of application No. PCT/JP2018/033195, filed on Sep. 7, 2018.
Claims priority of application No. 2017-174405 (JP), filed on Sep. 11, 2017.
Prior Publication US 2020/0206393 A1, Jul. 2, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 9/16 (2006.01); A61B 5/00 (2006.01); A61B 8/00 (2006.01); A61B 8/12 (2006.01); A61L 31/02 (2006.01); A61L 31/06 (2006.01); A61L 31/12 (2006.01); A61L 31/14 (2006.01); C08G 77/00 (2006.01); C08L 83/04 (2006.01); G01S 15/89 (2006.01); G10K 11/30 (2006.01)
CPC A61L 31/129 (2013.01) [A61B 5/0095 (2013.01); A61B 8/12 (2013.01); A61B 8/4444 (2013.01); A61L 31/028 (2013.01); A61L 31/06 (2013.01); A61L 31/128 (2013.01); A61L 31/14 (2013.01); C08G 77/70 (2013.01); C08L 83/04 (2013.01); G01S 15/8906 (2013.01); G10K 11/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01)] 19 Claims
 
1. A composition for an acoustic wave probe, comprising the following ingredients (A) to (D):
(A) a linear polysiloxane having a vinyl group;
(B) a linear polysiloxane having two or more Si—H groups in a molecular chain;
(C) a polysiloxane resin; and
(D) surface-treated silica particles having an average primary particle diameter ranging from 50 nm to less than 100 nm,
wherein the ingredient (D) has a truly spherical shape.