Patent ID: 8771451

Claim:
A method of making a paint roller comprising the steps of: helically winding a strip of material around a mandrel so as to form a helically wound strip; advancing the wound strip along the mandrel; extruding a polypropylene-based compound to form a smoothly flowing layer of adhesive, the polypropylene-based compound comprising (i) at least 5% but not more than 66% calcium carbonate by weight; and (ii) a polypropylene resin; applying the layer of adhesive onto an outer surface of the wound strip; helically wrapping a strip of composite cover material about the wound strip and over the layer of adhesive, the composite cover material having a backing with a thickness of about 10 to 40 mils and comprising (i) at least 25% but not more than 50% calcium carbonate by weight; and (ii) polypropylene-based elastomer; allowing the adhesive to cool, thereby bonding the strip of cover material to the wound strip.