| abstract |
Particulate active ingredient-free component of detergent additive consists of (A) 20-70% of >=1 satd. fatty acid or fatty alcohol having m.pt. >30 degrees C, (B) 10-50% of at least one water-soluble polyglycol or non-ionic or anionic tenside and (C) 1-20% colloidal SiO2 and/or water-contg. Al silicate, pref. MgAl silicate with ribbon or tubular configuration of the silicate and aluminate gps, capable of swelling in water. Wt. ration (A) : (B) is 5 : 1 to 1 : 2 (3 : 1 to 1 : 1) and mixt. of (A) and (B) pref. has m.pt. > 38 degrees C. Used as additive contg. an active ingredient enhancing washing, bleaching or germicidal activity of powdery detergent compsn. Detergent additive (i) resists storage, e.g. active perborate content of detergent contg. tetraacetyl glycoluril (I), added as bleach activator in additive compsn., is improved from 1% to 85% after 4 weeks at 30 degrees C and 80% RH, w.r.t. control contg. (I) added to liquid concentrate before spraying; (ii) dissolves easily. |