Heat-crosslinkable adhesive composition forming a heat-stable adhesive seal

Abstract

A heat-crosslinkable adhesive composition comprises a polymer (A) comprising at least one hydrolysable alkoxysilane group, a silylated copolymer tackifying resin (B′), a non-silylated tackifying resin (C), and a crosslinking catalyst (D). The silylated copolymer tackifying resin comprises a repeating unit (B′1) derived from a silylated olefin monomer, in particular from a silylated (meth)acrylate monomer, and one or more repeating units (B′2) derived from olefin or diolefin monomers included in a petroleum fraction obtained by cracking naphtha and chosen from a C5 fraction, a C9 fraction, dicyclopentadiene. A self-adhesive article comprises a support layer coated with a self-adhesive layer consisting of the heat-crosslinkable adhesive composition in the crosslinked state.

Dependencies are inferred from the claim text.