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| Number | Title | Issue Date |
| 4239043 | Absorbent means for catamenial devices The object of the invention is to provide an improved absorbent means that can be used in a catamenial device. The improved absorptive means comrpises a foam means having an absorbency improvement means at least arrayed on the surface of the foam means wh... | 12/16/1980 |
| 4232673 | Method for collecting and processing body fluids Methods for purposes such as obtaining information pertaining to human beings or other animals having body cavities wherein fluids from which desired information can be derived are at least temporarily present. A means for collecting a body fluid is intro... | 11/11/1980 |
| 4232674 | Liquid absorption devices A liquid absorbent device such as a diaper, sanitary towel or tampon includes one or more layers of a material with capillarity and carries an absorbent deposit in a predetermined pattern, for example parallel stripes, to leave uncovered areas for capilla... | 11/11/1980 |
| 4226237 | Layered absorbent structure A product is provided for absorbing body fluid that has the property of retaining a greater proportion of absorbent fluid in an interior layer. The product includes an absorbent element having a plurality of absorbent layers including a first layer compri... | 10/07/1980 |
| 4222381 | Menstrual tampon In a menstrual tampon comprising one or more webs 1, rolled up in several layers around each other, of moisture-absorbing material, a pull string 2 is anchored and extends out of the tampon. This string is laid around the web 1 in at least two consecutive... | 09/16/1980 |
| 4217900 | Menstruation tampon A menstruation tampon of wadding of cotton or rayon staple fibers with a treatment for increased absorbency by addition of a hydrophilic agent including fibers treated with said hydrophilic agent, in the form of a rolled tampon having the improvement wher... | 08/19/1980 |
| 4215692 | Absorbent structure An absorbent structure is provided comprising peat moss in combination with mechanical wood pulp, said wood pulp having a Canadian Standard Freeness of from about 30-600 and present in the ratios, by weight of wood pulp to peat moss, of greater than about... | 08/05/1980 |
| 4212301 | Digital tampon A digital tampon of unitary construction made of absorbent material capable of being compressed to self-sustaining form. A portion of the material is compressed to a rod-like shape to provide a rigid central support for the remaining relatively uncompress... | 07/15/1980 |
| 4211225 | Tampon with a collapsible and invertible shroud A tampon designed for catamenial or medical use which includes a collapsible and invertible shroud (13) affixed to the front or inserted end (17) of the main tampon body (12). The shroud has an inner layer (15), adjacent to the main tampon body, fabricate... | 07/08/1980 |
| 4200101 | Catamenial tampon A catamenial tampon shaped to be fitted easily into the vagina and be withdrawn therefrom without discomfort notwithstanding deep radial expansion of it's insert end prior to insertion. The disclosure is also concerned with the method of fabricating one e... | 04/29/1980 |
| 4182328 | Dispensing instrument and method A fluid dispensing instrument and method for placing a drug material into the canals of the Fallopian tubes of a female. The instrument has a housing carrying a piston and cylinder assembly. An elongated flexible tubular probe attached to the housing carr... | 01/08/1980 |
| 4175561 | Feminine hygienic pads with improved absorption Feminine Hygienic Pads with improved absorption properties for use in the interlabial space in the area of the female urethral meatus and vaginal meatus for absorbing urine and other undesirable exudations comprising an elongated fibrous pad base of cylin... | 11/27/1979 |
| 4169004 | Water frangible end seal for hydro-dissociative agglomerate tampon In a tampon having an absorbent body which is an agglomerate of pieces of absorbent foam, said agglomerate being held together by an overwrap, the improvement wherein said overwrap is provided with a water frangible end seal formed exclusively of said ove... | 09/25/1979 |
| 4169121 | Absorbent material for aqueous physiological fluids and process for its production An absorbent material is provided having exceptional fluid suction and holding power for aqueous physiological fluids, and which is thus especially adaptable for use as tampons, sanitary napkins, baby diapers, hospital pads and the like. The material cons... | 09/25/1979 |
| 4165743 | Regenerated cellulose fibers containing alkali metal or ammonium salt of a copolymer of an alkyl vinyl ether and ethylene dicarboxylic acid or anhydride and a process for making them An alloyed regenerated cellulose fiber containing an alkali metal or ammonium salt of a copolymer of an alkyl vinyl ether and an ethylene dicarboxylic acid or anhydride is prepared by a process wherein the copolymer is mixed with a viscose solution and th... | 08/28/1979 |
| 4136697 | Fibers of high fluid-holding capacity Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having polyvinylpyrrolidone dispersed therein. The polyvinylpyrrolidone may be present in combination ... | 01/30/1979 |
| 4108180 | Reusable tampon A reusable tampon device including a body of flexible, dry compressible cellular sponge material such as polyurethane foam which is capable of absorbing body fluids such as menses and having an outer covering completely enclosing said body and comprising ... | 08/22/1978 |
| 4105033 | Powdered grafted cellulose A selected powdery form of a graft copolymer containing hydrophilic chains provides a highly moisture-absorbent media which is suitable for use in absorbent bodies, particularly those used for absorbing body exudates such as catamenial devices, diapers, w... | 08/08/1978 |
| 4096289 | Electrostatic deposition of swellable, modified cellulose ether on water wet hydrophilic substrate Process for the transformation of comminuted and modified cellulose ether swellable with water, into a material that may easily be further processed and may thus be used without difficulty in particular in the production of hygienic pads, napkins, bandage... | 06/20/1978 |
| 4096312 | Deposition of swellable, modified cellulose ether on water wet hydrophilic substrate Process for the transformation of comminuted cellulose ether, which has been rendered at least largely water-insoluble by modification but is still highly swellable with water, into an easily workable material, comprising wetting a hydrophilic support web... | 06/20/1978 |
| 4088132 | Hydrophilic polyurethane foams for use in catamenial devices A hydrophilic polyurethane foam for use in a catamenial device such as a tampon is disclosed which can be compressed to less than about 50 percent of its original dry volume, stored in such condition for an extended period of time, and later rapidly re-ex... | 05/09/1978 |
| 4084591 | Water dispersible absorber for blood and the like Novel absorber for the blood and the like, particularly a tampon for menses, which is made of the filaments of a lower alkyl or a lower hydroxyalkyl substituted cellulose ether. The absorber is insoluble in the blood and the like when it is used, but it i... | 04/18/1978 |
| 4077409 | Encapsulated catamenial device A catamenial device such as a tampon which comprises a segment of a rapidly reexpandable hydrophilic polymeric foam held in compression to less than 50 percent of its original dry volume and a constraining means holding said segment in compression which i... | 03/07/1978 |
| 4077408 | Catamenial device employing polymeric constraining means A catamenial device such as a tampon which comprises a segment of a rapidly re-expandable hydrophilic polymeric foam held in compression to less than 50 percent of its original dry volume and a constraining means holding said segment in compression which ... | 03/07/1978 |
| 4063558 | Article and method for making high fluid-holding fiber mass Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having alkali metal salts of alginic acid uniformly dispersed therein.... | 12/20/1977 |
| 4061145 | Absorbent foam articles and method of manufacture Foams (as for example polyurethane foam) catamenial tampons which have been treated with surfactant. Catamenial tampons of this invention exhibit improved humid expansion characteristics. In a preferred embodiment, the catamenial tampons comprise particle... | 12/06/1977 |
| 4058124 | Disposable absorbent articles containing particulate, free-flowing, insoluble swellable polymers Particulate, free-flowing, insoluble swellable polymers are provided which are comprised of a mixture of an insoluble, swellable hydrogel and inert filler. The mixtures are free-flowing powders or granules which can absorb many times their weight of water... | 11/15/1977 |
| 4056103 | Wrapper structure for tampons containing superabsorbent material An improved wrapper structure for tampons containing superabsorbent material. The wrapper provides the used tampon with a fluid-lubricated surface to ease withdrawal. The wrapper is a fluid-permeable web material having a saline fluid retention capacity s... | 11/01/1977 |
| 4044766 | Compressed catamenial tampons with improved capabilities for absorbing menstrual fluids This invention is directed to a compressed catamenial tampon made up of a mass of absorbent fibers having intermixed therein a quantity of carboxymethylcellulose fibers containing free-acid carboxyl radicals and characterized by a high capacity for absorb... | 08/30/1977 |
| 4037601 | Process for preparing sterilized feminine hygiene articles of non-woven and woven textures A process for preparing sterilized hot melt adhesive bonded articles is disclosed comprising applying to one surface of an adhesive, such as a hot melt adhesive film, a blend of polypropylene, a tackifying hydrocarbon resin, and a diluent, pressing the su... | 07/26/1977 |
| 4027673 | Digitally insertable tampon In a tampon comprising an absorptive relatively non-compressible core surrounded by a transmissive foam jacket, the foam jacket is formed into a skirt extending from the lower end of the core to define an opening to receive the finger of the user for digi... | 06/07/1977 |
| 4026292 | Tampon having a mensesphilic foam treated with a liquid lubricant Improving the handling characteristics of flexible, resilient, particulate polyurethane foam by adding a small quantity of liquid lubricant to the surface of the foam to prevent clumping. Applying as little as about 0.5 percent to about 20 percent by weig... | 05/31/1977 |
| 4020841 | Catamenial tampon A catamenial tampon comprising an elongated core of conventional highly absorbent fibrous material enclosed along its sides and posterior ends by a sheath of non-absorbent, resilient and thus compressible foam material whereby the storage capacity of the ... | 05/03/1977 |
| 4020271 | Crosslinked phosphonoalkyl cellulose and absorbent devices incorporating same Alkali metal and ammonium salts of crosslinked phosphonoalkyl cellulose are described which have a phosphorous content of from about 1.5% to about 4.0% by weight and a degree of crosslinking sufficient to make the modified cellulose salts essentially inso... | 04/26/1977 |
| 4018225 | Catamenial tampon The present invention is concerned with catamenial tampons which comprise means for preventing by-pass but yet are readily removable. Generally the tampons are hollow cones of absorbable material with a withdrawal cord attached to the apex and an unfurlab... | 04/19/1977 |
| 3999549 | Catamenial tampon having fluid transmissive and resilient outer sheath A catamenial tampon comprising an elongated core of conventional highly absorbent fibrous material which is relatively incompressible and enclosed by a sheath of open-celled resilient foam. The foam transmits by capillary action, fluids from the exterior ... | 12/28/1976 |
| 3995636 | Constrained catamenial device employing adhesive coating A catamenial device such as a tampon which comprises a segment of a rapidly re-expandable hydrophilic polymeric foam held in compression to less than 50 percent of its original dry volume and a constraining means holding said segment in compression which ... | 12/07/1976 |
| 3994298 | Foam aggregate catamenial tampon Foams (as for example polyurethane foam) catamenial tampons which have been treated with surfactant. Catamenial tampons of this invention exhibit improved humid expansion characteristics. In a preferred embodiment, the catamenial tampons comprise particle... | 11/30/1976 |
| 3993551 | Process for cocrosslinking water soluble polymers and products thereof Poly(ethylene oxide) and at least one other water soluble polymer are conveniently cocrosslinked by exposing aqueous systems of the polymers to high energy irradiation. The resulting products are insoluble hydrophilic gels which can contain or when dried ... | 11/23/1976 |
| 3993552 | Process for cocrosslinking water soluble polymers and products thereof Poly(ethylene oxide) and at least one other water soluble polymer are conveniently cocrosslinked by exposing aqueous systems of the polymers to high energy irradiation. The resulting products are insoluble hydrophilic gels which can contain or when dried ... | 11/23/1976 |
