Olefin polymers having associative groups, and adhesives containing same

摘要

The present invention relates to olefin polymers having associative groups containing nitrogen heterocyclic compounds, to hot-melt adhesives including such polymers, and to method for producing same. Specifically, the invention relates to a polymer comprising units from ethylene and from a monomer having associative groups, said monomer including a polymerizing reactive group and an associative group containing nitrogen heterocyclic compounds.

主权项

1. A hot-melt adhesive comprising a polymer and at least one tackifying resin, wherein the polymer comprises units resulting from ethylene and a monomer carrying associative groups, said monomer carrying associative groups comprising:
(i) a reactive group capable of polymerization, wherein the reactive group is selected from the group consisting of (meth)acrylate, N-monosubstituted (meth)acrylamide, N,N-disubstituted (meth)acrylamide, vinyl, allyl, and styryl groups; and (ii) an associative group comprising a nitrogenous heterocycle; said monomer carrying associative groups corresponding to the formula (1): where: R is T-(G)n- in which T is a reactive group capable of polymerization, wherein the reactive group is selected from the group consisting of (meth)acrylate, N-monosubstituted (meth)acrylamide, N,N-disubstituted (meth)acrylamide, vinyl, allyl, and styryl groups, n has the value 0 or 1 and G is a linear or branched C1-C24 alkylene chain optionally interrupted by one or more nitrogen atoms, R′ is a hydrogen atom, and A is an oxygen or sulfur atom.