Elastic blocks and process for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 5, 2003
Grant Date -
Feb 7, 2002
app pub date -
May 12, 2000
filing date -
Aug 5, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elastic block, which is adapted to be paved on an underlying base for absorbing impacts, includes a laminate composed of a powdery rubber-containing layer and a vulcanized rubber layer underlying the powdery rubber-containing layer, the powdery rubber-containing layer being a compression molded layer composed of a mixture comprising elastic chips having the particle size of 0.5 to 10 mm and a resin binder, the vulcanized rubber layer being a vulcanized molding of an unvulcanized rubber layer, wherein the elastic chips are fixedly bonded to one another with the resin binder and the powdery rubber-containing layer is adhered to the vulcanized rubber layer when the mixture layer and the unvulcanized rubber layer are subjected to pressurization and vulcanization.
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