Elastic Surfaces for Sportsgrounds, Playgrounds and Footpaths

    公开(公告)号:GB1152825A

    公开(公告)日:1969-05-21

    申请号:GB4419566

    申请日:1966-10-04

    Applicant: BASF AG

    Abstract: 1,152,825. Sportsground surfacing. BADISCHE ANALIN- & SODA-FABRIK A.G. 4 Oct., 1966 [5 Oct., 1965], No. 44195/66. Heading E1G. A sportsground, playground or footpath comprises an elastic layer of particulate closedcell plastic 13 between a filter layer 12 and a covering layer 15. The elastic layer is preferably a homopolymer or copolymer of styrene or ethylene in spherical particles bound by bitumen, rubber, polyisobutylene, or copolymers of acrylic acid or vinyl chloride or vinylidene chloride or open-cell expanded plastic, such that the layer remains water permeable. The covering layer may be waterbound with a layer of cinders 14 below or asphalt and chippings. Where the covering layer is laid hot, a layer of chippings may be used as a heat insulator. Where it is desired to control the water content of the elastic surface, it may be placed in a trough, lined with a sheet 10 of polyisobutylene, having a base layer 11 of water-permeable dispersion bound rigid foam and an outlet pipe 17 with different water level maintaining stand pipes 19, 20, 21.

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