Protective sealing composition in molded form
AssigneeHollister Incorporated
InventorWagdi W. Habib
Life of this patent
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Abstract
Protective sealing compositions in the form of molded rings or sheets, which comprise gelled mixtures of water-absorbing particulate hydrocolloid gum and non-toxic liquid polyhydroxy alcohol are provided with increased resistance to the drained fluid (viz. urine or intestinal fluids) by incorporating a small amount of colloidal silica. Fumed silica is preferred. By limiting the amount of silica added appreciable reductions in the wet tack and/or dry tack of the composition can be avoided. The compositions can be used with ostomy devices, wound drainage devices, and incontinence devices.
Claims10
A protective sealing composition in the form of a molded gelled ring, sheet, or the like, said composition comprising essentially a gelled mixture of gellable, water-absorbing, particulate hydrocolloid gum and a non-toxic liquid polyhydroxy alcohol, wherein the improvement comprises having dispersed in said composition an amount of fumed silica within the range from 0.1 to 4.0% by weight, said amount of fumed silica being effective to increase appreciably the mechanical endurance of said sealing composition when exposed to urine or intestinal fluid.
A protective sealing composition in the form of a molded gelled ring, sheet, or the like said composition comprising essentially a gelled mixture of karaya gum powder and a non-toxic liquid polyhydroxy alcohol, wherein the improvement comprises having dispersed in said composition an amount of fumed silica within the range from 0.1 to 4.0% by weight, said amount of fumed silica being effective to increase appreciably the mechanical endurance of said sealing composition when exposed to urine or intestinal fluid.
A protective sealing composition in the form of a molded gelled ring, sheet, or the like, said composition comprising essentially a gelled mixture of a gellable, water-absorbing, particulate hydrocolloid and a non-toxic liquid polyhydroxy alcohol, wherein the improvement comprises having dispersed in said composition an amount of fumed silica within the range from 0.1 to 4.0% by weight together with from 2 to 15% by weight of sodium carboxymethylcellulose, said amount of fumed silica being effective to increase appreciably the mechanical endurance of said sealing composition when exposed to urine or intestinal fluid.
A protective sealing composition in the form of a molded gelled ring, sheet, or the like, said composition being composed essentially of a gelled mixture of karaya gum powder and glycerin, wherein the improvement comprises having dispersed in said composition an amount of from 0.1 to 1.5% by weight of fumed silica together with 3 to 8% by weight of sodium carboxymethylcellulose, said amount of fumed silica being effective to increase appreciably the mechanical endurance of said sealing composition when exposed to urine or intestinal fluid.
Dependencies are inferred from the claim text.