Synthetic turf having cooling layer
AssigneeSapturf, LLC
InventorsChristopher Tetrault, Phil M. Stricklen, Raymond A. Berard
Life of this patent
Estimating the term…
Abstract
The present invention describes a synthetic turf having super absorbent materials in order to keep the synthetic turf cooler than conventional synthetic turfs. The present invention also provides for synthetic turf infill cooling particles comprising a layer of water-absorbing material coating a foundation comprising a core substrate. In one embodiment, the cooling particle is comprised of a core particle or substrate, which is coated with a water-absorbing material. In one embodiment, the water-absorbing material is a super absorbent polymer.
Claims26
A synthetic turf infill cooling granule comprising:
- a core particle having an outer surface;
- and
- a superabsorbent polymer composition comprising:
- (a) one or more water-soluble polymers;
- and
- (b) one or more cross-linking agents;
- wherein the one or more water-soluble polymers comprise polymerizable unsaturated monomers with one or more acid functional groups;
- wherein from 5 to 30% of the acid groups on the one or more water-soluble polymers are crosslinked by the one or more crosslinking agents to form a superabsorbent polymer composition that is water-swellable and substantially water insoluble but capable of absorbing at least about 5 times its weight in water;
- wherein the superabsorbent polymer composition forms a coating over the outer surface of the core particle and comprises about 0.2% to about 10% by weight of the core particle;
- wherein the size of the coated particle has a median size that is within a range of about 5 to about 60 mesh;
- and
- wherein the core particle comprises a granular material selected from the group consisting of resilient particles, inelastic particles or combinations thereof.
A synthetic turf infill cooling granule comprising:
- a core particle having an outer surface;
- and
- a superabsorbent polymer composition comprising:
- (a) one or more water-soluble polymers;
- and
- (b) one or more cross-linking agents;
- wherein the water-soluble polymers comprise polymerizable unsaturated monomers with one or more free acid groups;
- wherein the water-soluble polymers is selected from the group consisting of polycarboxylic acids, polypeptides, polyanhydrides, polylactic acids, polyglycolic acids, acrylic latex dispersions, polyacrylic acid, copolymers of acrylic acid with acrylamide, acrylic esters and/or vinyl monomers, and mixtures thereof;
- wherein from 5 to 30% of the acid groups on the one or more water-soluble polymers are crosslinked by the one or more crosslinking agents to form a superabsorbent polymer composition that is water-swellable and substantially water insoluble but capable of absorbing at least about 5 times its weight in water;
- wherein the superabsorbent polymer composition forms a coating over the outer surface of the core particle and comprises about 0.2% to about 10% by weight of the core particle;
- wherein the size of the coated particle has a median size that is within a range of about 5 to about 60 mesh;
- and
- wherein the core particle comprises a granular material selected from the group consisting of resilient particles, inelastic particles or combinations thereof.
Dependencies are inferred from the claim text.