Crosslinkable materials based on organyloxysilane-terminated polymers

A composition, comprising:

• (A) 100 parts by weight of one or more silane-crosslinking polymers (A1) of the formula
• R2—O-Z1-O—CO—NH—(CH2)—SiRa(OR1)3-a (I)
• and/or
• polymers (A2) of the formula
• R4—O-Z2-O—CO—NH—(CH2)3—Si(OR3)3 (II),
• where
• Z1 denotes divalent polymer radicals which are free from C-bonded hydroxyl groups,
• Z2 denotes divalent polymer radicals which are free from C-bonded hydroxyl groups,
• R are identical or different and represent monovalent, SiC-bonded, optionally substituted hydrocarbyl radicals,
• R1 are identical or different and represent hydrogen or monovalent, optionally substituted hydrocarbyl radicals,
• R3 are identical or different and represent hydrogen or monovalent, optionally substituted hydrocarbyl radicals,
• R2 are identical or different and represent monovalent, optionally substituted hydrocarbyl radicals,
• R4 are identical or different and represent monovalent, optionally substituted hydrocarbyl radicals, and
• a is 0 or 1,
• (B) 0 to 300 parts by weight of one or more silane-crosslinking polymers having at least two end groups of the formula
• —SiR7c(OR8)3-c (III),
• where
• R7 are identical or different and represent monovalent, SiC-bonded, optionally substituted hydrocarbyl radicals,
• R8 are identical or different and represents hydrogen or monovalent, optionally substituted hydrocarbyl radicals, and
• c is 0, 1 or 2,
• and also
• (C) 20 to 400 parts by weight of a tackifier resin, wherein tackifier resin (C) comprises at least one compound selected from the group consisting of
• (C1) phenol-modified terpene resins,
• (C2) hydrocarbon resins,
• (C3) rosins,
• (C4) acrylic ester resins, and
• mixtures thereof.