Randomly embossed surface covering
AssigneeCongoleum Corporation
InventorsStanley J. Kaminski, Robert D. Mansolillo, Eugene A. Wilmer
Life of this patent
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Abstract
The process for producing a surface covering having a randomly embossed wear surface which comprises incorporating a blowing agent into a resinous composition, forming the resinous composition into a layer, heating to partially fuse the layer, printing a design on the surface of the layer, randomly distributing flakes of resinous composition containing an inhibitor for the blowing agent onto the printed surface of the layer, applying a clear wear layer thereto and heating the assembly to the decomposition temperature of the blowing agent.
Claims16
In a process for producing a wear resistant, multilayered resinous assembly on a base, said process comprising the steps of:
- forming into a layer a foamable resinous polymer composition containing a blowing agent;
- heating to gel said layer;
- printing a design on said layer with ink;
- applying a wear layer thereto, and;
- heating the resulting assembly to the decomposition temperature of said blowing agent;
- the improvement which comprises randomly distributing flakes of a resinous composition containing an inhibitor for said blowing agent onto the printed surface of the gelled foamable resinous polymer composition, applying a clear wear layer thereto, and heating the resulting assembly to effect the inhibition reaction and, thereafter, to decompose the blowing agent and fuse the resinous compositions so as to effect expansion at the sites of decomposition.
In a process for producing a wear resistant, multilayered assembly on a base, said process comprising the steps of:
- forming into a layer a foamable resinous polymer composition containing a blowing agent;
- applying an ink to portions of said layer;
- applying as a wear layer a preformed, non-fused, translucent sheet with thermoplastic decorative chips encompassed therein, and;
- heating the resulting assembly to the decomposition temperature of said blowing agent;
- the improvement which comprises replacing said thermoplastic decorative chips with flakes of a resinous composition containing an inhibitor for said blowing agent so as to prevent expansion of said foamable resinous polymer composition in the areas underneath said flakes.
Dependencies are inferred from the claim text.