Self-adhesive addition-crosslinking silicone compositions

A self-adhesive addition-crosslinking silicone composition comprising

• (A) 100 parts by weight of at least one diorganopolysiloxane of the formula (1)
• R1aR2bSiO(4-a-b)/2 (1)
• in which
• R1 is hydroxyl radical or a monovalent, optionally halogen-substituted C1-20 hydrocarbon radical optionally containing O, N, S or P atoms, and being free from aliphatically unsaturated groups,
• R2 is a monovalent, aliphatically unsaturated, optionally halogen-substituted C2-10 hydrocarbon radical optionally containing O, N, S or P atoms,
• b is from 0.0003 to 2,
• with the provisos that 1.5<(a+b)≦3.0, that per molecule there are on average at least two aliphatically unsaturated radicals R2, and that the viscosity of the diorganopolysiloxanes (A) as determined at 25° C. is 1 mPa·s to 40,000 Pa·s,
• (B) 1-5 parts by weight of at least one organohydropolysiloxane of the formula (2)
• R3cR4dR5eHfSiO(4-c-d-2e-f)/2 (2)
• where
• R3 is a monovalent aliphatically saturated C1-10 hydrocarbon radical,
• R4 (a) is an optionally halogen-substituted monovalent C6-20 hydrocarbon radical which contains at least one aromatic C6 ring, and/or
• (b) is a halogen-substituted, saturated monovalent C2-20 hydrocarbon radical optionally containing O or N atoms,
• R5 is an optionally halogen-substituted C6-24 hydrocarbon radical optionally containing O, N, S or P atoms which is divalent and is Si-bonded at both ends,
• c and f are positive numbers, and
• d and e are zero or a positive number,
• with the provisos that d and e cannot simultaneously be zero, that the viscosity of the organohydropolysiloxane (B) as determined at 25° C. is 5 mPa·s to 5 Pa·s, and the organohydrogensiloxane (B) contains per molecule 5 to 18 SiH groups and less than 12 mol percent phenyl groups,
• (C) 0.1 to 3 parts by weight of at least one organohydrooligosiloxane of the formula (3),
• (R6HSiO)n (3),
• where
• R6 is a monovalent, optionally halogen-substituted C1-10 hydrocarbon radical, and
• n is 4, 5, 6, 7, or 8,
• (D) 1×10−5 to 1×10−2 parts by weight of at least one hydrosilylation catalyst.