摘要:
A CURABLE SURFACE COATING COMPOSITION COMPRISING AN UNSATURATED POLYESTER RESIN, NATURAL WAS PARTICLES AND FLOCK WHICH IS MIXED WITH A CURING CATALYST SUCH AS METHYL ETHYL KETONE PEROXIDE AND POURED OR SPRAYED AS A THIN LAYER ONTO A CONCRETE, WOOD OR METAL SUBSTRATE AND ALLOWED TO CURE. THE CURED COATINGS ARE WATERPROOF, STRONGLY BONDED TO THE SUBSTRATE AND HAVE A LOW COEFFICIENT OF FRICTION, MAKING THEM IDEAL FOR USE AS ARTIFICIAL SKATING SURFACES.
摘要:
A ''''one-shot'''' mould for forming natural ice rinks is provided. It includes a pair of sheets of synthetic thermoplastic material, e.g. polyethylene, whose peripheral edges are sealed together. The bottom of the two sheets is water-tight and can conform to the shape of an irregular surface. The top has a water inlet aperture, and preferably also more holes to permit the escape of entrapped air as water fills the enclosure.
摘要:
An improved ice skating rink utilizing a refrigerated gas as a means for freezing and keeping frozen a surface which may be utilized for ice skating. The refrigerated gas is supplied to a plenum which is disposed beneath the skating surface.