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AssigneeArmstrong World Industries, Inc.
InventorsEdwin J. Quinn, Manuel A. Velez, Richard M. Ringer, Michael E. Buckwalter
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Vinyl heat welding rod for seam sealing vinyl resilient flooring, whether in sheet or tile form, are used to obtain a homogeneous, monolithic appearing surface. This rod is specifically made to duplicate the appearance of the flooring material. For a chip-image flooring structure, a sheet of multicolored chips having a similar, but different formulation from that of the flooring material is prepared and the sheet is cut into suitable strips, heat pressed in a rod mold, end adhered or further molded to form the desired length, and used as a vinyl heat welding rod for sealing seams in flooring. Thus, the chip pattern is evident in the seam area and does not appear different when compared to the adjacent surface.
A thermoplastic welding rod comprising a first plurality of thermoplastic particles and a second plurality of thermoplastic particles, the second plurality of thermoplastic particles having a color different than the color of the first plurality of thermoplastic particles, the first and second pluraltity of thermoplastic particles comprising about 18 to about 31 weight percent of plasticizer.
A thermoplastic welding rod comprising a first plurality of thermoplastic particles and a second plurality of thermosplastic particles, the second plurality of thermoplastic particles having a color different than the color of the first plurality of thermoplastic particles, the thermomlastic particles comprising an organic polymer, the polymer consisting essentially of polyvinyl chloride.
A surface covering comprising two thermoplastic sheets welded together with a thermoplastic welding rod, the welding rod comprising a first plurality of thermoplastic particies and a second plurality of thermoplastic particles, the second plurality of thermoplastic particles having a color different than the color of the first plurality of thermoplastic particles.
Dependencies are inferred from the claim text.