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

Claim 12:
13. A method for preparing the crosslinked organosilicone resin according to claim 1, comprising a step of hydrosilylating a hydrosilyl group-containing organosilicone resin represented by the following average composition formula (13) with at least one of terminal alkenyl group-containing compounds represented by the following formula (11), (12), (14), (15), (16), (17), (18) or (19), with the proviso that the compound (11) is essential, to obtain the crosslinked organosilicone resin represented by the average composition formula (1):

(R13SiO1/2)n1HpR13−pSiO1/2)a2+a3+a4(R12SiO3/2)b(R1SiO3/2)c(SiO4/2)d   (13), wherein R1 is, independently of each other, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and having no aliphatic unsaturated bond; a1, a2, a3, a4, b, c, and d satisfy the equations, 0<a1≤400, 0≤a2≤200, 0≤a3≤400, 0<a4≤50, 0≤b≤320, 0≤c≤320, 0<d≤1,000, and 0.5≤(a1+a2+a3+a4)/d≤1.5, and p is an integer of 1≤p≤3,, , wherein R4 is, independently of each other, a substituted or unsubstituted, monovalent hydrocarbon group having 1 to 30 carbon atoms and having no aliphatic unsaturated bond, e is an integer of 0≤e≤500, and k is an integer of 0≤k≤5,

CH2═CH—CfH2f—CH═CH2  (12), wherein f is an integer of 0≤f≤20,

CH2═CH—CmH2m—O—(C2H4O)g1(C3H6O)g2R5  (14), wherein R5 is an unsubstituted or substituted, monovalent hydrocarbon group having 1 to 30 carbon atoms or a hydrogen atom, and m, g1, and g2 are integers satisfying the equations, 0≤m≤15, 0≤g1≤200, 0≤g2<200 and 0<g1+g2≤200,

CH2═CH—CmH2m—O—(CH2CH(OH)CH2O)hR5  (15), wherein R5 is an unsubstituted or substituted, monovalent hydrocarbon group having 1 to 30 carbon atoms or a hydrogen atom; and m and h are integers satisfying 0≤m≤15 and 0<h≤5,

CH2═CH—C11H2n—(SiOR62)i—SiR63  (16)

CH2═CH—CnH2n—SiR6j1—(OSiR63)3−j1  (17)

CH2═CH—CnH2n—SiR6j1—(OSiR6j2(OSiR63)3−j2)3−j1  (18)

CH2═CH—CnH2n—SiR6j1—(OSiR6j2(OSiR6j3(OSiR63)3−j3)3−j2)3−j1  (19), wherein R6 is, independently of each other, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 30 carbon atoms and having no aliphatic unsaturated bond, n, i and j1 to j3 are integers satisfying the equations, 0≤n≤5, 0≤i≤500 and 0≤j1-3<2.