Nicotine-containing, controlled release composition and method
AssigneeCambrex Charles City, Inc.
InventorJohn A. Walling
Life of this patent
Estimating the term…
Loading patent…
AssigneeCambrex Charles City, Inc.
InventorJohn A. Walling
Estimating the term…
A nicotine product having a nicotine release rate of not less than 70% over a 10 minute period as well as a process to produce such product. Such product is produced by a process comprising the steps of (a) preparing an aqueous solution of an organic polyol; (b) mixing said aqueous solution of the organic polyol with a cation exchange resin selected from the group consisting of (i)—a methacrylic, weakly acidic type of resin containing carboxylic functional groups (ii)—polystyrene, strongly acidic type of resin containing sulfonic functional groups and (iii)—polystyrene, intermediate acidic type of resin containing phosphonic functional groups thereby forming a cation exchange resin mixture having some of its ion exchange sites partially blocked with said polyol; (c) admixing with said mixture of step (b) an aqueous solution of nicotine to form a nicotine-coated cation exchange resin admixture; and (d) removing water from said admixture. The nicotine composition having a nicotine release rate of not less than 70% over a 10 minute period results.
A nicotine containing product having a nicotine release rate of not less than 70% over a ten minute period produced by the process comprising the steps of (a) preparing an aqueous solution of an organic polyol (b) mixing said aqueous solution of the organic polyol with a cation exchange resin selected from the group consisting of (i)—a methacrylic, weakly acidic type of resin containing carboxylic functional groups (ii)—polystyrene, strongly acidic type of resin containing sulfonic functional groups and (iii)—polystyrene, intermediate acidic type of resin containing phosphonic functional groups thereby forming a cation exchange resin mixture having some of its ion exchange sites partially blocked with said polyol (c) admixing with said mixture of step (b) an aqueous solution comprising from about 50 mg to about 400 mg of nicotine per gram of said solution to form a nicotine-coated cation exchange resin admixture and (d) removing water from said admixture to produce said nicotine-containing product having a nicotine release rate of not less than 70% over a ten minute period.
A nicotine composition having a nicotine release rate of not less than 70% over a ten minute period comprising a cation exchange resin selected from the group consisting of (i)—a methacrylic, weakly acidic type of resin containing carboxylic functional groups (ii)—polystyrene, strongly acidic type of resin containing sulfonic functional groups and (iii)—polystyrene, intermediate acidic type of resin containing phosphonic functional groups, said cation exchange resin having some of its ion exchange sites partially blocked by an organic polyol and nicotine, the concentration of cation exchange resin to nicotine being from about 1 gram of ion exchange resin per 500 mg of nicotine to about 1 gram of ion exchange resin per 100 mg of nicotine.
Dependencies are inferred from the claim text.