Fatty acid esters composition of a polyglycerine, a process for the preparation thereof, a process for the preparation of a highly-purified fatty acid esters composition of a polyglycerine, a highly-purified fatty acid esters composition of a polyglycerine, an additive for food-stuffs, a resin composition, and a composition for cosmetic or detergents

A composition for tooth paste which comprises an abrasive, a caking material, a wetting agent, and a fatty acid esters composition of a polyglycerine or a highly-purified fatty acid esters composition of a polyglycerine, wherein

• said fatty acid esters composition of a polyglycerine contains more than 70% of a fatty acid monoester represented by general formula (1) described below:
• RCO—(OCH2CH(OH)CH2)n—OH (1)
• wherein R is an alkyl group, an alkenyl group, or a hydroxyl group-substituted alkyl group which has a carbon number ranging from 6 to 21, and n is an integer of at least 4 based on a peak area ratio detected using an ultraviolet ray absorption detector in a high performance liquid chromatographic analysis method;
• and
• said highly-purified fatty acid esters composition of a polyglycerine has an oxirane oxygen concentration of below 100 ppm, wherein said oxirane oxygen concentration is defined by the titration method defined in Cd. 9-57 of Journal of American Oil Chemists' Society, or has a ratio of below 0.01%, wherein said ratio is a peak area value of a chemical shift between 2.7 ppm and 2.8 ppm assigned by methylene proton derived from an oxirane group with respect to a peak area value of a chemical shift between 3.4 ppm and 4.4 ppm assigned by methylene proton and methine proton derived from a polyglycerine with a proton NMR.

A cleaning agent composition which comprises (a) a polycarboxylic acid ester of a monoglyceride or a salt thereof represented by the general formula (3)

• R1—COO—CH2—CHOZ1-CH2OZ2 (3)
• wherein R1 is an alkyl or alkenyl group having a carbon number ranging from 7 to 17, either Z1 or Z2is Z2 is a residual group of a polycarboxylic acid or salt thereof, and another hydrogen atom or a residual group of a polycarboxylic acid or a salt thereof, and (b) a fatty acid esters composition of a polyglycerine or a highly-purified fatty acid esters composition of a polyglycerine, (c) organic or inorganic builders, (d) fluidity improvers, and additionally (e) thickening agents, (f) perfumes, (g) coloring agents, (h) sterilizers, (i) enzymes and (j) anti-inflammatory agents;
• wherein
• said fatty acid esters composition of a polyglycerine contains more than 70% of a fatty acid monoester represented by general formula (1) described below:
• RCO—(OCH2CH(OH)CH2)n—OH (1)
• wherein R is an alkyl group an alkenyl group, or a hydroxyl group-substituted alkyl group which has a carbon number ranging from 6 to 21 and n is an integer of at least 4 based on a peak area ratio detected using an ultraviolet ray absorption detector in a high performance liquid chromatographic analysis method;
• and
• said highly-purified fatty acid esters composition of a polyglycerine has an oxirane oxygen concentration of below 100 ppm, wherein said oxirane oxygen concentration is defined by the titration method defined in Cd. 9-57 of Journal of American Oil Chemists' Society or has a ratio of below 0.01% wherein said ratio is a peak area value of a chemical shift between 2.7 ppm and 2.8 ppm assigned by methylene proton derived from an oxirane group with respect to a peak area value of a chemical shift between 3.4 ppm and 4.4 ppm assigned by methylene proton and methine proton derived from a polyglycerine with a proton NMR.