LUBRICANT FOR GLASS FIBER Russian patent published in 1994 - IPC

FIELD: production and processing glass fiber. SUBSTANCE: lubricant contains, mass %: corn starch 5.5-6.35, polyvinyl alcohol 5/9 0.6-0.8, hydrogenated vegetable oil and hydrogenated fat 1.8-2.2, mixture of polyethylene esters of monooleate anhydrophosphates 0.2-0.3, aqueous dispersion of 1-(2-aminoethyl)-2-dentadecyl-2-dentadecyl- imidazoline 0.15--0.25, water to 100. Said lubricant additionally contains concentrated hydrochloric acid to hydrolyze starch, its quantity being 0.09-0.12 %. Proposed lubricant has coefficient of immigration 0.66-0.73, coefficient of friction 0.2-0.28, coefficient of compactness 8-13. EFFECT: improves desired product quality. 1 tbl