Title:
MANUFACTURE OF EXPANSIBLE SPHERICAL HOLLOW BODY CONSISTING OF ALKALI SILICATE METAL AND CURING AGENT AND SPHERICAL HOLLOW BODY
Document Type and Number:
Japanese Patent JPS59225734
Kind Code:
A
Abstract:
Hollow, spherical bodies of solidified alkali metal silicates having the general formula M2O:x.SiO2 where M is an alkali metal and x has a value greater than 3.6 and less than 12, said hollow bodies having an external diameter of from 1 to 5 mm, shell thickness of from 0.2 to 0.6 mm, a water content of from 10% to 30% by weight and a solids content of at least 70% by weight, the M2O content of the shell of said hollow bodies being greater internally and less toward the exterior surface, as well as the process of producing said hollow, spherical bodies of solidified alkali metal silicate. The hollow spheres are expandable resulting in the formation of foam spheres having a loose surface. The hollow spheres are useful to give a uniform filling of narrow cavities and in the covering of liquids by floatable, optionally surface-active silicate-containing materials.
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Inventors:
BUINFURIITO BUIHIERUHAUSU
KURISUTEIINE SHIYUREEDAA
KURISUTEIINE SHIYUREEDAA
Application Number:
JP7591184A
Publication Date:
December 18, 1984
Filing Date:
April 17, 1984
Export Citation:
Assignee:
HENKEL KGAA
International Classes:
B01J13/02; C01B33/32; C04B14/04; C04B18/02; C04B30/00; (IPC1-7): B01J13/02; C04B31/02
Attorney, Agent or Firm:
Toshio Yano