Abstract: A pair of pants with two waistbands includes pants defining a first waistband. A second waistband is made substantially of a material having elastic properties. A connector secures the bottom of the second waistband to the pants and enables movement of the second waistband between a hidden orientation in which it is substantially hidden behind the pants and an exposed orientation wherein it is substantially exposed above the first waistband.

Abstract: A catalyst for hardening unsaturated fatty acids obtained from the decomposition of fat is described, formed of an intimate mixture of titanium oxide and finely divided palladium metal, wherein the titanium oxide is pyrogenic titanium oxide obtained from titanium tetrachloride by flame hydrolysis.

Abstract: Mixed cyclic acrolein glycerol acetals can be obtained by reacting acrolein with glycerol in the presence of a solid acidic catalyst and by a distillation workup in a higher space-time yield and in very high selectivity in comparison to the state of the art if the reaction is carried out in the presence of the reaction mixture as solvent, which mixture consists essentially of acrolein, glycerol, cyclic acrolein glycerol acetals and water, and in the absence of heterogeneous solvents and, to the extent necessary, the reaction mixture freed of catalyst is compounded prior to being worked up by distillation with such an amount of pH-increasing substance that it exhibits a pH in a range of 4.5 to 7 in tenfold dilution with water. The reaction preferably takes place at 10.degree. to 30.degree. C. using strongly acidic organic or inorganic ion exchangers.