| 摘要 |
PCT No. PCT/CH79/00150 Sec. 371 Date Jul. 30, 1980 Sec. 102(e) Date Jul. 28, 1980 PCT Filed Nov. 27, 1979 PCT Pub. No. WO80/01162 PCT Pub. Date Jun. 12, 1980. The blown granular glass consists of fragments of a blown glass element and comprises at least 100,000, preferably 1,000,000, per cm3 of bubbles approximately of the same size. It is obtained by grinding the race material into a flour; the flour is mixed into a hot gas by a blowing means; the mixture is blown into a flat base furnace in an amount of blown glass; this amount is cooled after blowing and directly after cooling it is crushed into a granulated material.
|
