Cross-linkable masses based on organyl-oxysilane-terminated polymers

A moisture-curable composition comprising:

• (A) 100 parts by weight of at least one silane-crosslinking polymer of the formula
• (HO)x—Y—[O—CO—NH—(CR12)b—SiRa(OR2)3-a]2-x (I)
• where
• Y is a divalent polymer radical,
• R each, independently, is the same or different and is a monovalent, optionally substituted hydrocarbyl radical,
• R1 each, independently, is the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbyl radical,
• R2 each, independently, is may be the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbyl radical,
• x is 0 or 1,
• a each, independently, is the same or different and is 0, 1 or 2
• and
• b each, independently, is the same or different and is an integer from 1 to 10,
• with the proviso that component (A) includes less than 15 mol % of polymers of the formula (I) with x=1,
• and
• (B) 5 to 500 parts by weight of at least one silane-crosslinking polymer of the formula
• R6—O—Z—[O—CO—NH—(CR42)d—SiR3c(OR5)3-c]1-y[OH]y (II)
• where
• Z is a divalent polymer radical having no hydroxyl group,
• R3 each, independently, is the same or different and is a monovalent, optionally substituted hydrocarbyl radical,
• R4 each, independently, is the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbyl radical,
• R5 each, independently, is the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbyl radical,
• R6 each, independently, is monovalent, optionally substituted hydrocarbyl radical,
• y is 0 or 1,
• c each, independently, is the same or different and is 0, 1 or 2
• and
• d may be the same or different and is an integer from 1 to 10,
• (C) 0.1 to 10 parts by weight of organosilicon compounds containing nitrogen atoms not bonded to a carbonyl group;
• (D) 50 to 500 parts by weight of filler(s), and
• (I) 0.01 to 100 parts by weight of unreactive plasticizers,
• with the provisos that component (A) contains less than 10 mol % of polymers of the formula (I) with x=1, and that component (B) includes less than 10 mol % of polymers of the formula (II) with y=1.