Cross-linkable compositions based on organyloxysilane-terminated polymers

A crosslinkable composition comprising:

• (A) 100 parts by weight of compound(s) of the formula:
• Y—[(CR12)b—SiRa(OR2)3-a]x (I),
• wherein
• Y is an x-valent polymer radical bonded via nitrogen, oxygen, sulfur, or carbon,
• R each are identical or different monovalent, optionally substituted, SiC-bonded hydrocarbon radicals,
• R1 each are identical or different, and are a hydrogen or a monovalent, optionally substituted hydrocarbon radical optionally bonded to the carbon atom via nitrogen, phosphorus, oxygen, sulfur, or a carbonyl group,
• R2 each are identical or different, and are a hydrogen or a monovalent, optionally substituted hydrocarbon radical,
• x is an integer from 1 to 10,
• a is identical or different and is 0, 1, or 2, and
• b is identical or different and is an integer from 1 to 10;
• (B) 0.1 to 30 parts by weight of organosilicon compound(s) comprising units of the formula:
• DSi(OR3)dR4eO(3-d-e)/2 (II),
• wherein
• D is a monovalent, SiC-bonded radical containing basic nitrogen,
• R3 each are identical or different, and are a hydrogen or an optionally substituted hydrocarbon radical,
• R4 each are identical or different unsubstituted or halogen-substituted, SiC-bonded alkyl radicals having 1 to 8 carbon atoms,
• d is 0, 1, 2, or 3, and
• e is 0, 1, 2, or 3,
• wherein the sum total of d+e≦3 and at least one radical (OR3) is present per molecule;
• (C) 0.1 to 30 parts by weight of organosilicon compound(s) comprising units of the formula:
• ESi(OR5)gR6hO(3-g-h)/2 (III),
• wherein
• E each are identical or different monovalent, SiC-bonded radicals having an epoxy function,
• R5 each are identical or different, and are a hydrogen or an optionally substituted hydrocarbon radical,
• R6 each are identical or different unsubstituted or halogen-substituted, SiC-bonded alkyl radicals having 1 to 8 carbon atoms,
• g is 0, 1, 2, or 3, and
• h is 0, 1, 2, or 3,
• wherein the sum total of g+h≦3 and at least one radical (OR5) is present per molecule,
• with the proviso that at least 15% of all of the Si atoms in the components (B) and (C) belong to units of the formulae (II) or (III), wherein e or h is 1;
• and at least one component selected from the components:
• (D) 0.1 to 30 parts by weight of alkoxysilane(s) different from the components (B) and (C), and
• (E) 1 to 500 parts by weight of silicone resin(s) different from the components (B) and (C), comprising units of the formula:
• R7i(R8O)jSiO(4-i-j)/2 (IV),
• wherein
• R7 each are identical or different, and are a hydrogen or a monovalent, SiC-bonded, optionally substituted hydrocarbon radical,
• R8 each are identical or different, and are a hydrogen or a monovalent, optionally substituted hydrocarbon radical,
• i is 0, 1, 2, or 3, and
• j is 0, 1, 2, or 3,
• with the proviso that the sum total of i+j≦3 and in at least 50% of the units of the formula (IV) i is 0 or 1.