Abstract: This invention concerns monosubstituted dithiooxamides, and a preferred class comprises those wherein the substituent is such that the resulting dithiooxamide derivative is substantially nonvolatile at about room temperature. Preferred materials are those for which when the monosubstituent dithiooxamide is complexed with a transition metal cation, the resulting polymer is substantially a dark, i.e., preferably blue or blue-black color. Carbonless paper constructions involving use of N-(monosubstituted)dithiooxamides to advantage are described.

Abstract: Cosmetic compositions are provided which have modifiable color characteristics. A single composition may be applied, and with the application of pressure, the color of the composition may be changed. The composition contains a first pigment and mircocapsules containing a second pigment. Upon rupture of the microcapsules, the coloration of the second pigment is added to the composition, altering its color characteristics.

Abstract: Microencapsulated materials are released by rupturing of an adhesive layer on a substrate containing the capsules.

Abstract: An article comprises sheet material which may be printed and having an adherent coating of microscopic, rupturable capsules in a binder on at least one surface thereof, the article being capable of undergoing plastic deformation and exhibiting:(a) a yield point on a stress-strain curve of less than 225 kg/cm.sup.2 (3200 psi) for a 127 micrometer (5 mil) thick material,(b) a difference in elongation at the yield point compared to the breaking point of at least 5.0 percent, and(c) an elongation at the yield point of less than 25 percent.

Abstract: Fragrance releasing appliques are provided which comprise a transparent or translucent substrate bearing microcapsules in a binder on one surface and an adhesive on the remaining surface.

Abstract: Carbonless imaging system containing transfer control agent to prevent undesirable back-transfer of image to transfer medium. The transfer control agent is selected from oxalic acid, phosphoric acid, or mixtures thereof. Transfer media and business forms are also described.

Abstract: Color-forming precursor compositions comprising a metal-complexing compound having a plurality of ligand groups and color-activating compositions comprising transition metal salts of oleophilic, organic acids are combined to form dark, permanent images on substrates. The methods and compositions are particularly useful for providing permanent fingerprints and other dermographs.

Abstract: The disclosed compounds are adducts of imidazole or derivatives thereof and sulfur dioxide. The adducts are apparently of the Lewis acid-Lewis base type, and are useful as latent curing agents for epoxide resins. The adducts are prepared by interacting the imidazole and sulfur dioxide under anhydrous conditions. Equimolar imidazole--SO.sub.2 adducts can serve as a source of sulfur dioxide at room temperature.

Abstract: The disclosed compounds are adducts of imidazole or derivatives thereof and sulfur dioxide. The adducts are apparently of the Lewis acid-Lewis base type, and are useful as latent curing agents for epoxide resins. The adducts are prepared by interacting the imidazole and sulfur dioxide under anhydrous conditions. Equimolar imidazole-SO.sub.2 adducts can serve as a source of sulfur dioxide at room temperature.

Abstract: Microencapsulated materials are released by rupturing of an adhesive layer on a substrate containing the capsules.