Continuous solid state web coating process and webs produced thereby
AssigneeKoslow Technologies Corporation
InventorsEvan E. Koslow, Richard D. Kendrick, Gordon Spilkin
Life of this patent
Estimating the term…
Abstract
One or more particulate active agents are fused to the surface of a substrate web by mixing the particulate agents with a particulate binder having a particle size not exceeding an average diameter of approximately 40 microns and coating the composite mixture onto the surface of the substrate. Thereafter; the coated substrate is heated to a temperature equal to or greater than the Vicat softening temperature of the binder and compressed within the nip of a pair of pressure rolls to achieve fusion. If desired, a top layer may be placed upon the coated composite prior to the compression step. Also disclosed are various products manufactured by the process.
Claims15
A first substrate web having a first surface upon which is deposited a particulate iodinated resin and particles of a thermoplastic binder fused to both of said particulate resin and said first surface, wherein at least one of said substrate, said particulate iodinated resin, and said particles of a thermoplastic binder is treated with an antibacterial agent.
A composite structure comprising a first substrate having a first surface upon which is deposited particulate carbon and particles of a thermoplastic binder fused to both of said particulate carbon and said first surface, wherein at least one of said substrate, said particulate carbon, and said particles of a thermoplastic binder is treated with an antibacterial agent.
A first substrate web having a first surface upon which is deposited particulate sodium bicarbonate and particles of a thermoplastic binder fused to both of said particulate sodium bicarbonate and said first surface, wherein at least one of said substrate, said particulate sodium bicarbonate, and said particles of a thermoplastic binder is treated with an antibacterial agent.
A first substrate web having a first surface upon which is deposited particulate manganese oxide and particles of a thermoplastic binder fused to both of said particulate manganese oxide and said first surface, wherein at least one of said substrate, said particulate manganese oxide, and said particles of a thermoplastic binder is treated with an antibacterial agent.
A composite structure comprising a first substrate having a first surface upon which is deposited a particulate liquid absorbent and particles of a thermoplastic binder fused to both said particulate liquid absorbent and said first surface, wherein at least one of said substrate, said particulate liquid absorbent, and said particles of a thermoplastic binder is treated with an antibacterial agent.
Dependencies are inferred from the claim text.