| 摘要 |
PURPOSE:To reduce the wieght of a product by a method wherein as the material smaller in specific gravity than molten raw material is contained within glass fibers to equalize the density of the molten raw material to the apparent density of the glass fibers, the material of small specific gravity is dispersed uniformly in the molten raw material. CONSTITUTION:Material such as air or the like smaller in specific gravity than the molten raw material is contained within the glass fibers, the density of this molten raw material is equalized to the apparent density of the glass fibers and the glass is dispersed uniformly in said molten raw material and the glass fibers input and dispersed in the molten raw material does not deposit with time and changes into reaction injection material. |
