Patent ID: 6841234

Claim:
An acrylic foam-like adhesive tape comprising: (a) a layer of an acrylic foam-like backing comprising (i) from about 88% to about 92% of an acrylic polymer comprising: from about 35% to about 45% of a first alkyl acrylate monomer having alkyl groups which contain from 4 to 12 carbon atoms, from about 30% to about 40% of a second alkyl acrylate monomer having alkyl groups which contain from 4 to 12 carbon atoms, from about 6% to about 10% of a first monoethylenically unsaturated polar copolymerizable monomer, and from about 1% to about 2% of a second monoethylenically unsaturated polar copolymerizable monomer; and (ii) from about 8% to about 12% of hollow glass microspheres dispersed evenly in said polymer; (b) a layer of a heat-activated adhesive disposed on one side of the backing, said heat-activated adhesive comprising a polyamide, a polyester, a polyolefin, a urethane, a polyurethane, a block copolymer, an elastomer, a block copolymer rubber, or a combination of the foregoing materials; and (c) a layer of pressure sensitive adhesive disposed on the other side of the backing opposite the layer of said heat-activated adhesive.