Silicone material obtained by a reaction between:—at least one organopolysiloxane (A) that has a molar mass of less than 70,000 g/mol, preferably less than 50,000 g/mol, and contains siloxyl units I.1 and I.2; and—at least one organic compound (B) carrying at least two carboxylic acid groups and having no unsaturation.








Y
a

⁢

Z
b
1

⁢

SiO


4
-

(

a
+
b

)


2






(

I
⁢
.1

)







Z
c
2

⁢

SiO


4
-
c

2






(

I
⁢
.2

)