Absorbent composite
May 28, 2013. 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 2750944 3670731 3901236 Water absorbing starch-acrylonitrile graft copolymers fumed silica or alumina modified to improve rate of absorption for physiological fluids Absorbent product containing flocculated clay mineral aggregates Two layer absorbent article with super water-absorbing polymer Absorbent article Method of making absorbent bearing products Sheet product containing sorbent particulate material Composite mixtures for improving gel strength of water absorbent gels InventorsAssigneeApplicationNo. 068288 filed on 05/28/1993US Classes:442/393, Including particulate material other than fiber428/357, COATED OR STRUCTUALLY DEFINED FLAKE, PARTICLE, CELL, STRAND, STRAND PORTION, ROD, FILAMENT, MACROSCOPIC FIBER OR MASS THEREOF428/359, Staple length fiber428/360, Plural and with bonded intersections only428/361, With coating or impregnation428/372, Including structurally defined particulate matter428/393, Cellulosic428/400, Surface characteristic604/365, Containing fiber or material bonding substance604/367, Containing particular materials, fibers, or particles604/368, Collagen or gelling material604/372, Synthetic resin604/374, Cellulose or cellulosic materials604/377Cotton or derivative thereofExaminersPrimary: Ryan, PatrickAssistant: Gray, J. M. Attorney, Agent or FirmForeign Patent References
International ClassB32B 005/16Foreign Application Priority Data1987-01-28 JPAbstractA liquid-absorbent composite comprises (a) a water-absorbent polymer, (b) a water-insoluble inorganic material and (c) a water-insoluble hydrophilic fibrous material at a weight ratio between (a), (b) and (c) in the range of 100:5-1200:5-1200. It is very useful as the absorbent component for a sanitary napkin and a medical pad.Field of SearchCellulosicArtificial fiber or filament Including structurally defined particulate matter Coating on discrete and individual rods, strands or filaments Including metal or compound thereof (excluding glass, ceramic and asbestos) COATED OR STRUCTUALLY DEFINED FLAKE, PARTICLE, CELL, STRAND, STRAND PORTION, ROD, FILAMENT, MACROSCOPIC FIBER OR MASS THEREOF Staple length fiber Plural and with bonded intersections only With coating or impregnation Coated or with bond, impregnation or core Coated Cellulose Vegetable shell, hull, or cob ingredient, e.g., nut shells, pits, etc. Containing particular materials, fibers, or particles Cellulose or cellulosic materials Cotton or derivative thereof Mask or stencil utilized PARTICLES, FLAKES, OR GRANULES COATED OR ENCAPSULATED SOLID PARTICLES OR FIBERS APPLIED Plural particulate materials applied | |
