Adhesives comprising crosslinker with (meth)acrylate group and olefin group and methods

摘要

A pressure sensitive adhesive composition is described comprising at least 50 wt-% of polymerized units derived from alkyl meth(acrylate) monomer(s); and 0.2 to 15 wt-% of at least one cross-linking monomers comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted. In another embodiment, an adhesive composition is described comprising a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer comprising polymerized units derived from one or more alkyl (meth)acrylate monomers; wherein the syrup comprises at least one crosslinking monomer or the (meth)acrylic solute polymer comprises polymerized units derived from at least one crosslinking monomer, the crosslinking monomer comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted. In yet other embodiments, methods of preparing adhesive compositions are described.

主权项

1. A pressure sensitive adhesive composition comprising:
at least 50 wt-% of polymerized units derived from alkyl (meth)acrylate monomer(s) having a glass transition temperature no greater than 0° C.; and 0.2 to 15 wt-% of at least one crosslinking monomer comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being straight-chained or branched and optionally substituted; wherein the crosslinked composition is a pressure sensitive adhesive.