ORGANO-INORGANIC BINDING AGENT FOR OBTAINING COMPOSITE MATERIALS WITH REDUCED COMBUSTIBILITY (VERSIONS) Russian patent published in 2016 - IPC C09K21/10 C09K21/14 C08K3/38 C08K5/16 

FIELD: chemistry.

SUBSTANCE: claimed are three versions of organo-inorganic binding agents: 1 - obtained by thermal processing at 150-155°C of boric acid (BA) and polyethylenepolyamine (PEPA) mixture at ratio BA:PEPA = 70-80:30-20 wt %, which is characterised by temperature of softening 290-320°C and oxygen index not less than 90%, 2 - obtained by thermal processing at 220-225°C mixture of BA and imidazole at ratio BA:imidazole = 50-70:50-30 wt %, characterised by temperature of softening 380-400°C and oxygen index not less 88%, 3 - obtained by thermal processing at 245-250°C of BA and caprolactame (CL) mixture at ratio BA:CL = 59:36-37 wt % in presence of NaOH or H₃PO₄ as catalyst in quantity 4-5 wt %, which is characterised by temperature of softening 125-150°C and oxygen index not less than 45%.

EFFECT: binding agents are characterised by reduced combustibility and low quantity of volatile products of thermo-destruction.

3 cl, 2 dwg, 11 ex