Patent ID: 8877955

Claim:
Aminosilane of formula (I) where R 1 and R 2 either each stand, independently of each other, for a monovalent hydrocarbon residue having 1-12 C atoms, or together they stand for a bivalent hydrocarbon residue having 4-12 C atoms, which is part of an optionally substituted carbocyclic ring having 5-8 C atoms; R 3 stands for a hydrogen atom or for an alkyl group or arylalkyl group or alkoxycarbonyl group each having 1-12 C atoms; and either R 4 stands for a monovalent aliphatic, cycloaliphatic or arylaliphatic residue having 1-20 C atoms, which optionally contains heteroatoms, and R 5 stands for a hydrogen atom or for a monovalent, aliphatic, cycloaliphatic or arylaliphatic residue having 1-20 C atoms, which optionally contains heteroatoms, or R 4 and R 5 together stand for a bivalent aliphatic residue having 3-30 C atoms, which is part of an optionally substituted heterocyclic ring having 5-8 atoms, wherein this ring optionally contains further heteroatoms, besides a nitrogen atom; R 6 stands for a linear or branched alkylene or cycloalkylene residue having 1-20 C atoms, optionally with aromatic portions, and optionally with one or more heteroatoms; R 7 stands for an alkyl group having 1-10 C atoms, which optionally comprises ether oxygen, and two OR 7 groups together can stand for a bivalent glycolate group which forms a ring with the silicon atom; R 8 stands for an alkyl group having 1-8 C atoms; and x stands for 0, 1 or 2.