36results about How to "Overcoming Volatile Problems" patented technology

The invention relates to a flame retardant tris[2-tris(2,3-dichloropropoxy)silicon-acyloxy-ethyl]isocyanurate compound and a preparation method thereof. The structure of the compound is represented by a formula shown in a drawing. The preparation method comprises the steps of reacting silicon tetrachloride with 2,3-dichloropropanol of a mole which is equal to that of silicon tetrachloride in an organic solvent at the temperature below 25 DEG C, then, dropwise adding an organic solution of trishydroxyethyl isocyanurate of a mole which is 1 / 3 that of silicon tetrachloride, reacting for 9-13 hours at the temperature of 80-95 DEG C, then, dropwise adding 2,3-dichloropropanol of a mole which is 2-3 times that of silicon tetrachloride, and carrying out heat-preservation reaction for 7-10 hours at the temperature of 80-95 DEG C; then, adding an acid binding agent, and carrying out heat preservation for 1 hour while stirring; purifying, thereby obtaining a product, namely the tris[2-tris(2,3-dichloropropoxy)silicon-acyloxy-ethyl]isocyanurate. The compound disclosed by the invention has high flame retarding efficacy and is suitable for serving as a flame retardant for materials, such as polyvinyl chloride, polyurethane, epoxy resin, unsaturated resin and the like, and the preparation method is simple and is low in cost, so that the industrial production is easy to realize.

The invention relates to a flame retardant tris(hydroxyethyl) isocyanurate trisilicate dichlorohydrin compound and a preparation method thereof. The compound has a structure shown in the specification, wherein m is an integer from 0 to 3. The preparation method comprises the following steps: dropwise adding epoxy chloropropane into an organic solution of silicon tetrachloride at a temperature being below 30 DEG C and reacting for 2 hours at 50 DEG C, wherein the molar mass of the epoxy chloropropane is 2 times that of the silicon tetrachloride; dropwise adding an organic solution of tris(hydroxyethyl) isocyanurate and reacting for 9-13 hours at 80-95 DEG C, wherein the molar mass of the organic solution of the tris(hydroxyethyl) isocyanurate is 1 / 3 that of the silicon tetrachloride; dropwise adding the epoxy chloropropane and reacting for 4-7 hours at 70-90 DEG C, wherein the molar mass of the epoxy chloropropane is 1-1.5 times that of the silicon tetrachloride; performing purification treatment to obtain the tris(hydroxyethyl) isocyanurate trisilicate dichlorohydrin. The flame retardant contains three flame retardant elements including silicon, nitrogen and chlorine, is suitable to be used as flame retardants of the materials such as polyvinyl chloride, polyurethane, epoxy resin and unsaturated resin, is high in synergistic flame retardant performance, simple in preparation process and low in cost, and can be easily put into industrial production.

The invention relates to a flame retardant ethylenedioxy dual-silicate propyl chloride and a preparation method thereof. The compound has a structure shown in the specification, wherein m is an integer from 0 to 3. The preparation method comprises the following steps: dropwise adding propylene epoxide into an organic solution of the silicon tetrachloride at a temperature being below 0 DEG C and reacting for 1 hour at 40 DEG C, wherein the molar mass of the propylene epoxide is 2 times that of the silicon tetrachloride; dropwise adding ethylene glycol and reacting for 6-9 hours at 55-75 DEG C, wherein the molar mass of the ethylene glycol is 0.5 time that of the silicon tetrachloride; cooling to the temperature being below 30 DEG C, dropwise adding the propylene epoxide and reacting for 4-7 hours at 60-80 DEG C, wherein the molar mass of the propylene epoxide is 1-1.5 times that of the silicon tetrachloride; performing purification treatment to obtain the flame retardant ethylenedioxy dual-silicate propyl chloride. The compound disclosed by the invention has high synergistic flame retardant performance of double elements of silicon and chloride, is suitable to be used as flame retardants of the materials such as polyvinyl chloride, polyurethane, epoxy resin and unsaturated resin, is simple in preparation process and low in cost, and can be put into industrial production easily.

The invention relates to a flame retardant tris(hydroxyethyl) isocyanurate trisilicate ethyl chloride compound and a preparation method thereof. The compound has a structure shown in the specification. The preparation method comprises the following steps: introducing ethylene oxide into an organic solution of the silicon tetrachloride at a temperature being below 0 DEG C and reacting for 1 hour at 30 DEG C, wherein the molar mass of the ethylene oxide is 2 times that of the silicon tetrachloride; dropwise adding an organic solution of tris(hydroxyethyl) isocyanurate and reacting for 7-10 hours at 70-85 DEG C, wherein the molar mass of the organic solution of tris(hydroxyethyl) isocyanurate is 1 / 3 that of the silicon tetrachloride; cooling to the temperature being below 30 DEG C, introducing the ethylene oxide and reacting for 3-6 hours at 35-50 DEG C, wherein the molar mass of the ethylene oxide is 1-1.5 times that of the silicon tetrachloride; performing purification to obtain the tris(hydroxyethyl) isocyanurate trisilicate ethyl chloride. The compound disclosed by the invention is suitable to be used as flame retardants of the materials such as polyvinyl chloride, polyurethane, epoxy resin and unsaturated resin, is high in synergistic flame retardant performance, simple in preparation process and low in cost, and can be put into industrial production easily.