摘要:
Improved aqueous bleaching solutions formed by reacting a bleach activator having a perhydrolysis selectivity coefficient of 5 or greater and a low-pH perhydrolysis-efficiency coefficient of 0.15 or higher are provided. More specifically, the invention relates to bleaching solutions which provide enhanced cleaning/bleaching benefits though the selection of bleach activators at mildly alkaline washing solutions or in the presence of reduced-levels of hydrogen peroxide.
摘要:
Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK.sub.a above 13 and with advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
摘要:
Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom,, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK.sub.a above 13 and with advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
摘要:
Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular neutral or anionically charged substituted bleach activators are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits through the selection of perhydrolysis-selective bleach activators having specific leaving groups with a conjugate acid pK.sub.a above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
摘要:
Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK.sub.a above 13 and with advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
摘要:
Improved cleaning and/or bleaching compositions including fabric laundry and bleaching compositions, automatic dishwashing compositions, hard surface cleaners, bleach additives and the like, suitable for domestic use, comprising improved bleach activators having particular alpha-modified lactam leaving groups leading to improved in-use performance of bleaching agents such as perborate even under wash conditions less alkaline than those typically encountered or when hydrogen peroxide source is at low levels in a cleaning operation. A preferred class of activators are N-acyl-3-morpholinone compounds with benzoyl being a preferred acyl group and N-Benzoyl-3-oxomorpholine being a highly preferred activator.
摘要:
Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular neutral or anionically charged substituted bleach activators are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits through the selection of perhydrolysis-selective bleach activators having specific leaving groups with a conjugate acid pK.sub.a above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
摘要:
High quality acyl lactam imides are prepared by reacting an acyl lactam of the formula ##STR1## where 5 carbon atoms and an acylating acid of the formula R'CO.sub.2 H or by reacting a lactam, an anhydride of the formula (RCO).sub.2 O where R is 1 to 5 carbon atoms and an acylating acid, preferably in the presence of a base catalyst. The process affords acyl lactam imides in high yield and at lower reaction temperatures by providing for the removal of volatile carboxylic acid by-products under vacuum or by the use of a stripping gas. The acyl lactam imides are particularly suited for use as bleach activators in detergent compositions.
摘要:
The present invention relates to acylated citrate esters to be used as peracid precursors in a bleaching or a disinfecting operation. The present invention encompasses the use of these acylated citrate esters, granular or liquid compositions comprising the acylated citrate esters. Activating compositions are described as well as activated bleaching compositions.
摘要:
Laundry detergents and bleaching systems comprise acyl valerolactam bleach activators. The bleach activators are effective under mixed soil conditions, especially mixtures of hydrophobic and hydrophilic soils and stains.