Superabsorbent fibre flocks, methods for their production and application
Patent 5002814 Issued on March 26, 1991. Estimated Expiration Date: 
March 26, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 26, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3901236 3922455 Filling material and process for manufacturing same Absorbent material Reinforcing element and method of making the same Filling material Thermal insulator comprised of split and opened fibers and method for making same Absorbent article Patent #: 4721647 InventorsAssigneeApplicationNo. 130005 filed on 12/08/1987US Classes:428/85, PILE OR NAP TYPE SURFACE OR COMPONENT47/81, Fibrous wick210/242.4, With oil water sorption means210/502.1, Sorptive component containing210/504, With adhered coating or impregnant210/505, Including fibers428/6, PLUME428/86, Interlaminar428/90, Flock surface428/95, Particular backing structure or composition428/97, Composition of pile or adhesive428/369, Nonlinear (e.g., crimped, coiled, etc.)428/402, Particulate matter (e.g., sphere, flake, etc.)428/542.8, ARTICLE OF INTERMEDIATE SHAPE (E.G., BLANK, PARISON, PREFORM, ETC.)604/365, Containing fiber or material bonding substance604/370, Thermoplastic604/372, Synthetic resin604/376Carboxy-radical containingExaminersPrimary: Cannon, James C.Attorney, Agent or FirmForeign Patent References
International ClassesA61F 013/15A61F 013/46 B32B 005/16 B32B 005/30 Foreign Application Priority Data1986-12-08 DEAbstractThe invention relates to superabsorbent fibre flocks comprising a core of absorptive polymer wherein short polymer fibres have been embedded, such short polymer fibres protruding at least partially from the core. Such superabsorbent fibre flocks can be produced by binding absorbent polymer particles to each other and to the polymer fibres with the aid of a bonding agent and by grinding the fibre flocks thus obtained to the required particulate size. The superabsorbent fibre flocks according to the invention can be used to advantage in sanitary products, especially in baby diapers, menstrual pads and incontinence articles and have further application in separating water and aqueous components from hydrophobic liquids.Field of SearchPLUMEPILE OR NAP TYPE SURFACE OR COMPONENT Interlaminar Flock surface Particular backing structure or composition Composition of pile or adhesive Nonlinear (e.g., crimped, coiled, etc.) ARTICLE OF INTERMEDIATE SHAPE (E.G., BLANK, PARISON, PREFORM, ETC.) Particulate matter (e.g., sphere, flake, etc.) Fibrous wick Sorptive component containing With adhered coating or impregnant Including fibers | |
