Antiperspirant compositions in the form of gel sticks, having acidic pH, and including an antiperspirant active, a gelling agent which comprises a dibenzylidene alditol, or mixture thereof, a hydroxy solvent for the gelling agent, and a 2-oxazolidinone derivative having a C.sub.1 -C.sub.4 alkyl radical substituted at the 3 position of the heterocyclic ring are disclosed.
A process for separating a first hydrocarbon, selected from the group consisting of aromatic hydrocarbons, cycloalkanes, cycloalkenes, cycloalkadienes and combinations thereof, from a close-boiling second hydrocarbon, selected from the group consisting of alkanes, alkenes, and alkadienes and combinations thereof, by extractive distillation of a hydrocarbon-containing fluid containing such hydrocarbons by using a solvent containing a 3-alkyl-substituted-2-oxazolidinone. Such aromatic hydrocarbons contain in the range of from about 6 to about 10 carbon atoms per molecule. Such cycloalkanes, cycloalkenes, cycloalkadienes, and close-boiling second hydrocarbon contain in the range of from about 4 to about 10 carbon atoms per molecule.
A firm solid antiperspirant composition having a continuous phase comprising water-immiscible liquid containing i) one or more gelating structurant materials which form a network of fibres within the liquid, and ii) a polymeric thickener which has an organic polymer backbone containing at least five monomer repeat units, which polymer has the ability to increase the viscosity of the water-immiscible liquid in the absence of the gelating structurant materials; and iii) an antiperspirant active dispersed in the continuous phase, said composition being free from or containing less than 3% by weight of a fatty alcohol that is solid at 20.degree. C.
Disclosed is a clear, antiperspirant material-containing, gel stick composition, containing an acidic antiperspirant material (e.g., an aluminum salt) and gelled with dibenzylidene sorbitol, the composition including a guanidine compound (for example, guanidine carbonate or aminoguanidine bicarbonate) as a stabilizing agent to reduce degradation of the gel and of the dibenzylidene sorbitol gelling agent. Also disclosed are continuous processes for forming the gel stick composition, wherein degradation of the dibenzylidene sorbitol gelling agent in the presence of the antiperspirant material is reduced.
A dispersion of dibenzylidene sorbitol acetal (DBS) in an organic liquid selected from alkylene glycols and polyalkylene glycols is provided wherein the DBS has a moisture content of greater than 2 wt. %, to inhibit the dispersion from gelling prematurely.
Personal treatment compositions including leave-on hair care compositions and leave-on skin care compositions, comprising from about 0.001% to about 50%, preferably from about 0.005% to about 6%, enduring perfume, are disclosed. The enduring perfume provides a lasting olfactory sensation thus minimizing the need to use large amounts.
