Dual curing composition and use thereof

A single-component, dual curing composition which is liquid at room temperature and can be cross-linked by actinic radiation and by moisture, consisting of

• (A) 5 to 80 parts by weight of at least one alpha-(alkoxy)silane compound having one to four alpha-(alkoxy)silane groups, but with the exception of polyolefins substituted with alpha-(alkoxy)silane groups;
• (B) 5 to 80 parts by weight of at least one radiation-curing compound having 1-5 radiation-induced, radically polymerizable groups, whereby components (A) and (B) are present as separate compounds;
• (C) 0.01 to 20 parts by weight of at least one photoinitiator for radical polymerization;
• (D) 0.001 to 20 parts by weight of at least one catalyst for silane curing by moisture, selected from the group consisting of inorganic and organic acids, aliphatic primary, secondary and tertiary monoamines, diamines and polyamines, amidines, aldimines, ketimines, enamines, oxazolidines and the heavy metal-containing metallo-organic compounds, and mixtures thereof;
• (E) 0 to 70 parts by weight of at least one modifier, selected from the group consisting of fillers, dyes, pigments, fluorescents, stabilizers, moisture scavengers, accelerators, bonding agents, cross-linkers, plasticizers, wetting agents, thixotropic agents, thinners, flexibilizers, polymeric thickeners, flame retardants, corrosion inhibitors, softeners and tackifiers, alone or in combination with each other;
• and
• (F) 0 to 30 parts by weight of a silane-based modifier of general formula (III)
• wherein
• R5 is a linear or branched polymeric backbone with a valency of two to nine, such as a polyether, polyamide, polyester, polycarbonate, polyurethane, polyurea or polyacrylate,
• each R6 is, independently, a monovalent residue selected from the group consisting of linear, branched or cyclic, saturated, unsaturated and aromatic hydrocarbons which optionally can be halogen-substituted or interrupted by 1 to 3 heteroatoms,
• each R7 is, independently, hydrogen or a monovalent residue selected from the group consisting of linear, branched or cyclic, saturated, unsaturated and aromatic hydrocarbons which optionally can be halogen-substituted or interrupted by 1 to 3 heteroatoms,
• A is a heteroatom-containing residue having a valency of 2 or 3 which is bound by a heteroatom, such as oxygen, nitrogen or sulfur to the group —(CH2)x—SiR6n(OR7)(3-n),
• n is equal to 0-2
• q is equal to 2-9 and
• x is equal to 2-5
• wherein the sum of all parts by weight is 100.