Abstract: This invention relates to improved oral compositions for dental hygiene, and, in particular, to dental rinse and mouthwash formulations containing orthophosphates which upon application to the teeth remove and retard the development of dental plaque on dental surfaces.

Abstract: A water resistant, non-gummy, hygroscopic, flexible and pliable thin film containing a combination of a sunscreening agent and a 2-hydroxyethyl methacrylate homopolymer deposited on an epidermal surface, a stable emulsion from which the film can be made and a special process for the manufacture of the stable emulsion. The topical application of stable emulsions from which a water resistant, non-gummy, hygroscopic, flexible and pliable thin film of 2-hydroxyethyl methacrylate homopolymer in combination with a sunscreening agent is deposited on an epidermal surface. Special solvent combinations and emulsification techniques are described.

Abstract: A water resistant, non-gummy hygroscopic, flexible and pliable thin film of 2-hydroxyethyl methacrylate homopolymer deposited on an epidermal surface, a stable emulsion from which the film can be made and a special process for the manufacture of the stable emulsion, utilizing an ammonium salt of a long chain fatty acid as an emulsifying agent therein. The topical application of stable emulsions utilizing an ammonium salt of a long chain fatty acid as an emulsifying agent therein, from which a water resistant, non-gummy, hygoscopic, flexible and pliable thin film of 2-hydroxyethyl methacrylate homopolymer is deposited on an epidermal surface. Special solvent combinations and emulsification techniques are described.

Abstract: A skin protein precipitation potentiating lotion or cream utilizing aluminum acetate and the cationic surfactant salts of strong acids to promote the healing of damaged skin cells.

Abstract: A projector is described, of the type wherein a motor-driven sprocket wheel cyclically pulls a film frame-by-frame through a film gate, by applying a large accelerating voltage at the beginning of each cycle, followed by a decelerating voltage and a fine-positioning sequence, which assures that the film will lie close to the final position and be moving slowly at the beginning of the fine-positioning sequence. A determination is made as to whether the film has moved a predetermined distance by a predetermined time after the beginning of each cycle, and the accelerating voltage for the next cycle may be changed to cause such predetermined movement at that predetermined time for subsequent cycles.