Abstract: Tobacco cut filler has an extremely high filling capacity. Tobacco cut filler is contacted with tap water under extraction conditions, and resulting aqueous tobacco extract is separated from the water insoluble extracted tobacco material. The extracted tobacco material is contacted with humectant, provided at a desired moisture level, and subjected to volume expansion conditions. Volume expanded extracted tobacco materials are used as smokable materials in cigarette manufacture.

Abstract: Polymers comprising pendant rearranged oxazoline and/or oxazine portions linked to a perfluorocarbon moiety having a perfluoroalkyl group are prepared. Such polymers can provide coating compositions which exhibit critical surface tensions of wetting of less than about 15 dynes/cm.

Abstract: Aqueous compositions containing a water-soluble amphoteric surfactant are effectively thickened without substantial loss in clarity by a suitable pH responsive, synthetic addition copolymeric thickener such as a copolymer of an .alpha., .beta.-ethylenically unsaturated carboxylic acid (e.g., methacrylic acid), a nonionic chain extender of an .alpha., .beta.-ethylenically unsaturated monomer (e.g., ethyl acrylate), and a nonionic vinyl surfactant ester (e.g., nonylphenoxy(polyethyleneoxy)ethyl methacrylate). Due to the ability of the copolymeric thickener to increase the viscosity of the amphoteric surfactant composition without substantially reducing the clarity thereof, the resulting thickened compositions are useful as shampoos, cleaning compounds and the like.

Abstract: The invention discloses a method for increasing the water capacity and air capacity of soil matrixes comprising modification of such soil matrixes with a water-absorbing laminate by positioning in the soil a mass of said laminate having a lightly cross-linked polyelectrolyte film with a layer of wicking substrates adhered to both sides of the absorbent film.