ANTISTATIC AGENT FOR FIBER GLASS AND METHOD FOR ITS PREPARING Russian patent published in 2007 - IPC C07C211/63 C07C209/12 C09K3/16 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of 50-60% aqueous solution of quaternary ammonium salt of the formula: [(CH₃)₂-N-(CH₂-CH=CHCl)₂]⁺Cl^- or [(CH₃CH₂)₂-N-(CH₂-CH=CHCl)₂ ⁺Cl^- and its using as an antistatic agent for fiber glass. Method involves interaction of a cleared waste in manufacturing allyl chloride containing 30-50 wt.-% of 1,3-dichloropropenes, 30-60 wt.-% of 1,2-dichloropropane and 3-5 wt.-% of 1,2,3-trichloropropane with dimethylamine at temperature 5°C or with diethylamine at temperature 50°C and in the mole ratio 1,3-dichloropropene to amine = 1.0:(1.0-1.1) followed by addition of stoichiometric amount of NaOH taken as 25-30% solution to reaction mass. Then tertiary amine chlorides-containing organic phase is separated and stoichiometric amount of 1,3-dichloropropene is added to organic phase followed by holding the prepared solution at temperature 70-80°C for 4-5 h and addition of desalted water to obtain 50-60% aqueous solution of the corresponding quaternary salt. This solution is settled and organic phase containing mainly 1,2-dichloropropane and 1,2,3-trichloropropane is separated. Method provides preparing a novel and relatively inexpensive antistatic agent and to utilize waste in manufacturing allyl chloride.

EFFECT: improved method of synthesis and preparing.

2 cl, 1 tbl, 3 ex