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

Claim 13:
14. 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), one or more selected from hydrosilyl group-containing organosilicon compounds represented by the following formula (22) or (23) 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,

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;
adding a basic catalyst in an amount larger than molar equivalent to said acid catalyst to neutralize a reaction mixture and, then,
condensing the neutralized reaction mixture in the presence of the basic catalyst to obtain the hydrosilyl group-containing organosilicone resin represented by said formula (13).