Special turf filler comprising silica particles
AssigneeU.S. Greentech, Inc.
InventorsCarl L. Huff, Randolph S. Reddick
Life of this patent
Estimating the term…
Abstract
An aggregate turf filler for use with the turf of athletic fields and landscaped areas which comprise crushed silica sand particles (SiO2) which are substantially round in shape and are sized to be between 12 and 40 mesh. An acrylic based sealer covering the outer surface of each of the silica sand particles. Finally, providing that the silica sand particles have a smooth outer surface, possess an angle of repose of less than 30°, repel water, resist compacting, present no damaging sharp edges when incorporated with the turf and are environmentally safe.
Claims19
An aggregate turf filler for use with the turf of athletic and landscaped areas said turf filler aggregate comprising:
- substantially round silica sand particles (SiO2) having an angle of repose of less than 30° and sized to be between 12 and 40 mesh;
- an acrylic polymer based sealer including mineral spirits, ethylenebenzene and xylene coating and sealing the outer surface of each of said silica sand particles;
- wherein,
- said silica sand particles resist mounding, repel water, resist compacting, present no damaging sharp edges when incorporated with said turf and are environmentally safe.
A method of producing an environmentally safe aggregate filler for use with athletic fields and landscaped area comprising:
- forming silica sand particles (SiO2) to be substantially round with an angle of repose of less than 30;
- sizing said silica sand particles to be in a range of between 12 and 40 mesh;
- providing a clear acrylic polymer based sealer and a natural colorant and blending said acrylic polymer based sealer and said colorant forming a colored acrylic polymer based sealer;
- coating said silica sand with said colored acrylic polymer based sealant forming said environmentally safe aggregate filler;
- and
- accumulating said coated aggregate filler for use within five mesh sizes.
The method of producing a decorative and environmentally safe aggregate filler including
- crushing silica sand into particles;
- screening said particles and selecting screened particles to be within five mesh sizes;
- providing an acrylic based sealer which includes mineral spirits, ethylbenzene and xylene and a natural colorant;
- blending said acrylic based sealer and said colorant at a ratio of between 0.5-1.5 part colorant, 1.5-2.5 part acrylic sealant;
- mixing said blended acrylic based sealer and colorant with said aggregate;
- and
- drying said coated and colored aggregate filler.
Dependencies are inferred from the claim text.