ELECTRICALLY CONDUCTIVE COMPOSITION FOR EDUCATIONAL GAMES AND A METHOD OF FORMING ELECTRICALLY CONDUCTIVE TRACKS Russian patent published in 2021 - IPC C09D5/24 C09D7/61 C09D133/08 C08L33/08 C08K3/105 C08K3/24 A63H33/00 

FIELD: educational games.

SUBSTANCE: invention relates namely to an electrically conductive composition for educational games, made on the basis of a dispersion, in which the dispersion medium is water, and the dispersed phase are particles of film-forming polymers and a filler including particles of an electrically conductive material. In this case, the volume fractions of the substance and the sizes of particles entering the dispersed phase satisfy the conditions: V_p ≈ V_dp; V_fp ≤ 0,4V_dp; V_em ≈ (0,16÷0,4)V_dp; D_p > 6,464D_fc^max; D_fp^min > 6,464D_em, where V_dp is the volume fraction of the dispersed phase, V_p is the volume fraction of polymer particles, V_fp is the volume fraction of filler particles without an electrically conductive material, V_em is the volume fraction of electrically conductive material particles, D_p is the nominal diameter of polymer particles, D_fp^min is the minimum nominal diameter of filler particles without an electrically conductive material , D_fp^max is the maximum nominal diameter of the filler particles without an electrically conductive material, D_em is the nominal diameter of the electrically conductive material particles. A method for forming electrically conductive tracks is also proposed.

EFFECT: increased electrical conductivity by reduced porosity.

12 cl, 3 dwg, 1 ex