Abstract: Oral compositions containing phytic acid or a physiologically acceptable salt thereof, a cationic antimicrobial compound and a compatibilizing agent are disclosed for controlling dental calculus, dental plaque, gingivitis, periodontitis and/or oral malodor.

Abstract: An oral composition for suppressing mouth odors comprising from about 0.001 to about 10 percent by weight of a copper salt and from about 0.001 to about 10 percent by weight phytic acid or a physiologically acceptable salt thereof. A cationic antimicrobial compound is added to the oral composition to aid in the prevention of plaque formation and gingivitis provided the oral composition contains from about 0.01 to about 20 percent by weight of a compatibilizing agent.

Abstract: High purity ethylenediaminetetra(methylenephosphonic acid) and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetra(methylenephosphonic acid) are prepared by dissolving the aminomethylenephosphonic acid in an aqueous base, acidifying with a mineral acid at an elevated temperature to precipitate the crystals, maintaining the solution at an elevated temperature for a period of time sufficient to assure crystallization, cooling to a lower temperature and maintaining at that temperature for a time sufficient to precipitate the crystals and filtering the resulting crystals at that temperature, washing the crystals with water and recovering the desired high purity aminophosphonic acid. The ethylenediaminetetra(methylenephosphonic acid) is obtained in a purer state during its synthesis if the crystals are filtered hot without prior cooling.

Abstract: Cement compositions having better and longer lasting workability have been made by adding to said compositions a polymer or copolymer of a hydroxyalkyl(meth)acrylate, e.g. hydroxyethyl acrylate or methacrylate. Further improvement is achieved by adding a water reducer, e.g. sulfonated polystyrene, and an antifoam agent, e.g. a polyalkylenepolyol.

Abstract: Sulfonated copolymers of styrene alpha-methylstyrene are added to cement compositions to improve the workability and strength characteristics of the concrete, mortar or grout product derived therefrom.

Abstract: This invention relates to a corrosion inhibiting composition for ferrous metals and its alloys in gas conditioning service using aqueous monoethanolamine to scrub carbon dioxide containing oxygen. The corrosion inhibiting composition includes a thiourea-amine-formaldehyde based polymer and, in the preferred embodiment, also includes a cupric ion producing material.

Abstract: This invention relates to a corrosion inhibiting composition for ferrous metals and its alloys in gas conditioning service using aqueous monoethanolamine to scrub carbon dioxide. The corrosion inhibiting composition includes a thiourea-amine-formaldehyde based polymer and, in the preferred embodiment, also includes a nickel ion producing material.