ARTIFICIAL GRANULAR LUMP AND MANUFACTURE THEREOF
PURPOSE:To provide a novel artificial grain lump having excellent hydrophilic properties, comparatively large specific gravity and sufficient compressive resistance. CONSTITUTION:The ground product of a non-intumescent thermoplastic synthetic resin is heated and melted under the state in which it is...
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Zusammenfassung: | PURPOSE:To provide a novel artificial grain lump having excellent hydrophilic properties, comparatively large specific gravity and sufficient compressive resistance. CONSTITUTION:The ground product of a non-intumescent thermoplastic synthetic resin is heated and melted under the state in which it is mixed with soil, sand, an aggregate, etc., thus manufacturing artificial grain lumps. Said soil, sand, aggregate, etc., are dispersed or attached on the insides and surfaces of the artificial grain lumps obtained. There are fine air gaps among said soil, sand, aggregate, etc., and the resin. |
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