Abstract: The invention relates to the use of esters of hydroxycarboxylic acids with alkoxylated fatty alcohols as solubilizers for perfume oils in water. These esters not only have a strong solubilizing effect on water-insoluble perfume oils, they are also capable of dispersing calcium ions.

Abstract: Compositions, which can be used in cosmetic applications, comprising: (a) at least one wax selected from the group consisting of dialkyl(ene) alkoxy ethers corresponding to formula (I): R1—(OCnH2n)x—O—(CmH2mO)y—R2??(I) in which R1 and R2 independently of one another represent alkyl and/or alkylene groups containing 16 to 36 carbon atoms, n and m independently of one another represent numbers of 2 to 4 and x and y independently of one another represent numbers of 0 to 10, the sum of x and y being a number of 1 to 10; and dialkyl(ene) carbonates corresponding to formula (II): R3O—CO—OR4??(II) in which R3 and R4 independently of one another represent optionally hydroxyfunctionalized alkyl and/or alkenyl groups containing 16 to 36 carbon atoms, and mixtures thereof; (b) at least one silicone; (c) at least one amphoteric and/or zwitterionic surfactant; and (d) at least one cationic polymer.

Abstract: The invention is an apparatus and process for batch rectification or reaction with batch distillation. The apparatus is a rectifying column alone or mounted on a batch reactor. The rectifying column having a collector for the downflowing column liquid arranged to collect liquid flowing down the column and a valve arrangement to direct the flow selectively away from the column or to the column at a time when downflowing product is being removed from the column. The column is operated at total reflux until the product reaches a required purity then the liquid flow from the collector is directed away from the column and the product recovered.