Abstract: An electrophotographic printing plate precursor is disclosed, which is formed by forming a toner image on a photoconductive layer of an electrophotographic photoreceptor comprising at least a conductive support and a photoconductive layer and then by removing a non-image area on the photoconductive layer other than a toner-image area, wherein said photoconductive layer comprises at least (1) an organic photoconductive compound, (2) a binder resin which is dissolved or swelled in an alkaline solution, and (3) a phosphoric acid or an analogue thereof.

Abstract: A transparent dentifrice is provided wherein a cellulose derivative, typically CMC-Na, having a viscosity of 5 to 20 centipoises measured as 1% aqueous solution at 25.degree. C. is blended as a binding agent.

Abstract: In an oral composition comprising an amino compound, for example, tranexamic acid and .epsilon.-aminocaproic acid, a flavor, a surface-active agent, water, and optionally, a humectant, a binder, and an abrasive, the flavor is at least partially comprised of an aldehyde flavor compatible with the amino compound.

Abstract: In an oral composition comprising an amino compound, for example, tranexamic acid and .epsilon.-aminocaproic acid, a flavor, a surface-active agent, water, and optionally, a humectant, a binder, and an abrasive, the flavor is at least partially comprised of an aldehyde flavor compatible with the amino compound.

Abstract: An oral composition for preventing and remedying dentinal hypersensitivity which comprises containing therein aluminum and a carboxylate compound in solubilized state, with the molar ratio of the carboxylate compound to aluminum being lower than 6, and having a pH value higher than 5.

Abstract: A plastic container is filled with an antiseptic toothpaste composition comprising an aluminum oxide compound such as aluminum oxide trihydrate as a main abrasive and a polyhydric alcohol such as propylene glycol, sorbitol, etc. in an amount of 5 to 100 moles in fluoride-free systems or 4.0 to 100 moles in fluoride-containing systems per liter of water in the toothpaste composition.

Abstract: A dentifrice composition is disclosed which comprises 100-100,000 units per gram of the composition of dextranase and 20-90% by weight of the composition of an aluminum oxide compound having the formula:Al.sub.2 O.sub.3.nH.sub.2 Owherein n.gtoreq.0, with an average particle size of 1-50 microns as a main abrasive. Dextranase is maintained stable in the dentifrice composition and the composition itself is stable, subject to minimal aging discoloration.

Abstract: A plastics container having oxygen permeability of 3 cc/m.sup.2.day.atm or more is filled with an antiseptic toothpaste composition comprising an aluminum oxide compound such as aluminum oxide trihydrate as a main abrasive and a polyhydric alcohol such as propylene glycol, sorbitol, etc. in an amount of 5 to 100 moles in fluoride-free systems or 4.0 to 100 moles in fluoride-containing systems per liter of water in the toothpaste composition.

Abstract: A dextranase containing-oral composition is made more stable and has a good feeling to use by incorporating therein carvone and l-menthol together at a weight ratio of 1:9 to 8:2, preferably in a combined amount of 0.1 to 5% by weight of the composition. The composition may be a dentifrice composition.

Abstract: A stable dextranase-containing oral composition having a good feeling upon use is disclosed which comprises a dextranase enzyme produced by the genus Chaetomium, one of fungi, and a stabilizing amount of an admixture comprising water-soluble salts of alkyl sulfates having 10, 12, 14, and 16 carbon atoms in the alkyl chain in the following proportion:______________________________________ C.sub.10 --alkyl sulfate salt 0-20%, C.sub.12 --alkyl sulfate salt 50-80%, C.sub.14 --alkyl sulfate salt 10-30%, and C.sub.16 --alkyl sulfate salt 0-15%, ______________________________________based on the weight of the admixture.

Abstract: An oral composition containing tranexamic acid in which carvone is blended in an amount of 0.1 to 5% by weight and l-menthol may preferably be blended in an amount of 0.03 to 10% by weight. Carvone improves the bitterness inherent to the tranexamic acid-containing oral composition. The composition may preferably contain a mixed humectant of sorbitol and glycerin at a weight ratio of 1:9 to 6:4 and a binder, at least 60% by weight of the binder being an alkali metal salt of carboxymethyl cellulose.

Abstract: An oral composition contains as a surface-active agent 0.1 to 5% by weight of a fatty acid ester of a sugar alcohol selected from the group consisting of lactitol, maltitol, maltotriitol, maltotetraitol, maltopentaitol, maltohexaitol, maltoheptaitol and mixtures thereof. The ester has an acyl group with 8 to 20 carbon atoms such as lauroyl. The oral composition which may be applicable as toothpaste, toothpowder, mouthwashes and the like has a pleasant taste as well as a good foaming power.

Abstract: An oral composition effective in the prevention of tooth decay is prepared by combining dextranase and gelatin or peptone in a nontoxic vehicle.