GLASS MICROSPHERE Russian patent published in 2018 - IPC C03B19/00 

FIELD: manufacturing technology.

SUBSTANCE: proposed solution relates to glass microspheres, which can be used for blasting, for burn beds, as a filler (in the manufacture of polymers, cements, concrete, facing materials, mastics, putties, sealants, syntactic foams), for manufacture of retroreflective devices, for example, in systems for ensuring road safety and, in particular, when marking the surface of roads. For the production of retroreflective microspheres glass is used, the temperature range of which changes in viscosity in the range from 10⁴ Pa*s to 10⁸ Pa*s does not exceed 216 °C, and the surface tension is at least 335 mN/m.

EFFECT: technical result of the proposed solution is to improve the quality of the SMSG by increasing the content of spherical particles and the effectiveness of the retroreflection of the SMSG.

4 cl, 2 tbl