Patent ID: 8110280

Claim:
An adhesive blend comprising: (a) from about 50 to 99 parts by weight pressure sensitive adhesive; and (b) from about 1 to 50 parts by weight non-tacky, elastomeric microsphere comprising the reaction product of a mixture comprising: (1) from about 75 to 95 parts by weight alkyl(meth)acrylate comonomer having from about 1 to 14 carbon atoms; (2) up to about 25 parts by weight multifunctional (meth)acrylate crosslinker selected from the group consisting of di(meth)acrylates, tri(meth)acrylates, tetra(meth)acrylates, divinylbenzene, and combinations thereof; (3) from about 0.01 to 4.0 wt % initiator; and (4) from about 0.01 to 3 wt % polymeric stabilizer, wherein the parts by weight of component (b)(1) and (b)(2) equal 100 parts total, and (b)(3) and (b)(4) are wt % based on the total weight of components (b)(1) and (b)(2), wherein the pressure sensitive adhesive is selected from the group consisting of: (i) a blend of tacky microspheres and an adhesive binder comprising at least one acrylamide-based moiety, (ii) a water based tacky microsphere, (iii) a solvent based tacky microsphere; and combinations thereof.