| abstract |
PURPOSE: An anti-freeze for car engines, providing rust prevention and corrosion resistance, obtained by blending an anti-freeze consisting of a glycol, water and a corrosion inhibitor with a specific quarternary ammonium base (salt). n CONSTITUTION: An anti-freeze consisting of a glycol, water and a corrosion inhibitor is blended with a quaternary ammonium base (salt) shown by the formula (R 1 , R 2 , and R 3 are 1W4C alkyl; R' is 1W4C alkyl, or β-hydroxylethyl), to give the aimed anti-freeze. Choline, tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetra-n-propylammonium hydroxide, tetra-n-butylammonium hydroxide, etc. may be cited as the base. n COPYRIGHT: (C)1985,JPO&Japio |