Starquartz Industries, Inc.

Christopher Warren

John A Simms

Grout compositions having a binder including water-borne polyurethane and a filler are described herein. An accelerator component is provided to control the rate of grout curing, thereby decreasing the time required between grout application and grout use. This result is achieved while providing sufficient time for grout application. Grout may be light-transmissive and include light-transmissive binder and filler.

Polyurethane-containing grouts

A multi-layer flooring tile having a porous base layer of rounded silica particles, supporting a resilient and stretchable flexible membrane layer which supports a top layer of aliphatic polymer, fine filler and quartz mineral. The top layer is coated with a clear polymer coating. The flexible membrane layer is formed directly on the base layer, forming a bond without adhesive and likewise the top layer is formed on the flexible membrane layer, bonding without adhesive as the layers cure simultaneously. The flooring tiles are to be installed in the manner of an ordinary tile floor and provide a multi-layer, chemical resistant, non-slip flooring system.

Flooring tile

A durable, stain resistant tile grout comprised of naturally rounded quartz particles and water-borne polyurethane. The naturally rounded quartz particles are permanently colored and encapsulated within the water-borne polyurethane, which remains transparent and shows the permanent color of the quartz particles.

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Columbus, MD, United States of America

Christopher Warren