Substitute ground surface material

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272 5, 252 88, 106 83, 106 84, 106229, 428403, 428404, 428407, A63J 300, A63K 100, C09K 318

Patent

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048528706

ABSTRACT:
The invention relates to a substitute soil material for laying as a sports surface for example a horse-race track. The material may be a sand or other fine granular material with a binder comprising a styrene-butadiene-styrene copolymer dispersed or dissolved in an oil which preferably is a soft grease at ordinary climatic temperatures. When laid, the surface may be maintained by periodic raking.

REFERENCES:
patent: 1600515 (1926-09-01), Secoy
patent: 3533953 (1970-10-01), Mills et al.
patent: 4452926 (1984-06-01), Matsushima et al.
patent: 4598019 (1986-07-01), Yokoyama
patent: 4792133 (1988-12-01), Hawkins et al.

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