US 2017/0037282 A1 · ADHESIVES COMPRISING (METH)ALLYL CROSSLINKER AND METHODS

Abstract

Pressure sensitive adhesive compositions are described comprising polymerized units derived from alkyl (meth)acrylate monomer(s) and a crosslinking monomer comprising at least two terminal groups selected from allyl, methallyl, or combinations thereof. In one embodiment, the pressure sensitive adhesive composition is a syrup or the reaction product of a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer The syrup or the (meth)acrylic solute polymer comprises polymerized units derived from the cross-linking monomer. Also described are pressure sensitive adhesive articles and methods.

Claims20

Dependent claims

A pressure sensitive adhesive composition comprising the reaction product of 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, wherein the crosslinking monomer has the formula
(H2C═C(R1)(CH2)xZ
wherein
R1 is hydrogen or methyl,
Z is a heteratom or a multivalent linking group selected from the group consisting of alkylene, arylene, oxyalkylene, ester, ether, amide, amine, urethane, urea, carbonate, silane, or a combinations thereof, and x ranges from 2 to 6.

5 more elements

Dependencies are inferred from the claim text.

Adhesives comprising (meth)allyl crosslinker and methods

Life of this patent

Adhesives comprising (meth)allyl crosslinker and methods

Life of this patent

Abstract

Claims20