Abstract: An apparatus and process for forming particles. A precursor material is provided to a rotor-stator construction and fed through apertures in the cylinder. The apertures are in intermittent fluid communication with the stator. A conveyor is provided beneath the cylinder. The conveyor has recesses and the recesses move in registration with the apertures in the cylinder. The precursor material is passed through the apertures and deposited in the recesses in an amount that overfills the recesses. The deposited precursor material is cooled to form a plurality of particles.

Abstract: An apparatus and process for forming particles. A precursor material is provided to a rotor-stator construction and fed through apertures in the cylinder. The apertures are in intermittent fluid communication with the stator. A conveyor is provided beneath the cylinder. The conveyor has recesses and the recesses move in registration with the apertures in the cylinder. The precursor material is passed through the apertures and deposited in the recesses in an amount that overfills the recesses. The deposited precursor material is cooled to form a plurality of particles.

Abstract: Disclosed are oral care compositions and methods for overall cleaning, whitening and preventing, reducing or removing surface deposited stains on natural teeth and dental prosthesis, the compositions comprising in an orally acceptable carrier at least 0.1% by weight of a water-soluble or water-dispersible copolymer prepared by copolymerizing one or a mixture of vinyl pyrrolidone (VP) monomers with one or a mixture of C1-C19 alkyl carboxylic acid (AC) C2-C12 alkenyl ester monomers. Preferably, the compositions further comprise one or a mixture of other oral care agents selected from a water soluble alkali metal or ammonium tripolyphosphate in an amount at least about 0.5% by weight of the composition, an abrasive, preferably a precipitated silica abrasive, in an amount at least about 6% by weight of the composition and a bleaching agent in an amount at least about 0.1% by weight of the composition.

Abstract: Disclosed are oral care compositions and methods for overall cleaning, whitening and preventing, reducing or removing surface deposited stains on natural teeth and dental prosthesis, the compositions comprising in an orally acceptable carrier at least 0.1% by weight of a water-soluble or water-dispersible copolymer prepared by copolymerizing one or a mixture of vinyl pyrrolidone (VP) monomers with one or a mixture of C1-C19 alkyl carboxylic acid (AC) C2-C12 alkenyl ester monomers. Preferably, the compositions further comprise one or a mixture of other oral care agents selected from a water soluble alkali metal or ammonium tripolyphosphate in an amount at least about 0.5% by weight of the composition, an abrasive, preferably a precipitated silica abrasive, in an amount at least about 6% by weight of the composition and a bleaching agent in an amount at least about 0.1% by weight of the composition.