Patent ID: 11912828
Assignee: SHIN-ETSU CHEMICAL CO., LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 14:
15. The method according to claim 13, further comprising steps of hydrolyzing, in the presence of an acid catalyst, a mixture of one or more selected from organosilicon compounds represented by the following formula (20) or (21) and one or more selected from a hydrolyzable silane represented by the following formula (24), a partial hydrolysis condensate of the hydrolyzable silane and a metal salt of the hydrolyzable silane and, then, dropwise adding one or more selected from hydrosilyl group-containing organosilicon compounds represented by the following formula (22) or (23):

R13SiOSiR13  (20)

R13SiX1  (21)

HpR1(3-p)SiOSiR1(3-p)Hp  (22)

HpR1(3-p)SiX2  (23)

SiX34  (24), wherein R1 is as defined above, X1, X2 and X3 are, independently of each other, a hydrolyzable functional group and p is an integer of 1≤p≤3;, to obtain the hydrosilyl group-containing organosilicone resin represented by the formula (13).