Engineered earthen recreational and sport surface
US8889777B2 · kind B2 · utility
0Cited by
9References
19Claims
0Family size
Inventors
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition for use as a sport or recreational surface includes about 88 to 90 percent by weight of a sand blend that is formed of at least three different sands mixed together, the sand blend including a first sand that is represents a majority by weight of the sand blend and has a clay/silt content of at least 1% by weight; about 5-7 percent by weight of a hydrocarbon wax; at least about 2 percent by weight of polymeric material; and at least about 3 percent by weight of rubber, the percentage by weight of each ingredient being based on the total weight of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.