US2833669A - Method of applying deodorising, disinfecting, fungicidal and bactericidal substances to carriers and in particular fibrous carrier substances - Google Patents

Method of applying deodorising, disinfecting, fungicidal and bactericidal substances to carriers and in particular fibrous carrier substances Download PDF

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US2833669A
US2833669A US542110A US54211055A US2833669A US 2833669 A US2833669 A US 2833669A US 542110 A US542110 A US 542110A US 54211055 A US54211055 A US 54211055A US 2833669 A US2833669 A US 2833669A
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web
substances
carrier
applying
chemically active
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US542110A
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Ziegler Josef
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Hakle-Werke Hans Klenk
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Hakle-Werke Hans Klenk
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N2300/00—Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48

Definitions

  • This invention relates to a method of applying deodorizing, disinfecting, fungicidal and bactericidalsubstances to carriers, particularly fibrous carrier webs, which are used for' industrial, hygienic, andv medical purposes, such as. paper, crepe paper, cellulose, cellulose wadding, and 'thelike materials.
  • alkyl-aryl-polyglycol ether is used as agent having an affinity to the fibrous carrier webs. Its concentration in the emulsion or suspension should be between 1 to 5% by weight.
  • surface e. g. finishing glues and/ or wetting agents which increase. the distribution on the web should be; admixed with the chemically active substance.
  • the active substance is first homogenized by stirring in the presence of wetting agents, surface glues and, if desired, a carrier substance.
  • the homogenized mixture is introduced into. a vessel and then in a: per se known manner applied onto the moving, wet, and therefore swollen carrier web by;
  • the invention consists in a method of applying chemically active e. g. deodorizing, disinfacting, fungicidal and bactericidal substances to fibrous carrier webs, such as for example paper, crepe paper, cellulose, cellulose wadding and the like materials, which substances are adapted to separate from the carrier web by light rubbing, wherein one or more of the chemically active substances is or are suspended or emulsified in agents having an afiinity to fibrous substances, and the suspension or emulsion is then applied to the carrier web in any manner known per se.
  • the suspension or emulsion may be applied cold or warm and by any methods known per se, e. g. spraying, immersion, or mixing.
  • the applied layer should be well distributed on the web and it is subsequently pressed into the open: pores of. the swollen web by means of a press roller; Dun'ng subsequent drying the dough-like chemically :activelayer forms azfilm andblocks the pores.
  • the layer may be applied to one or both sides of the carrier web; In this manner the following effects are obtained:
  • carrier web which; is easily rubbed off.
  • Migratingbacteria which. maybe present on the fibres of the web will be killed by contact with the active chemical.
  • a Carrier webs treated in this manner are thus provided with an effective, surface-active film which-'is easi ly-rubbed off.
  • the softness and absorption ability of the paper is determined by the glue.
  • glues Which do not penetrate the carrier Web are suitable e. g. surface glues such as finishing glues.
  • impregnated carrier is to be used for disinfecting purpose, it has been found that as active chemical hexachlorophenols and in particular hexachloro-dioxodiphenyl-m-ethane-2,2' dihydroxy-3,5,6,3',5',6' hexachloro-diphenyl-methane are advantageously used.
  • the method according to the invention enables disinfecting and other substances of the kind referred to which hitherto could not, or only inadequately be made to adhere to the carrier, to be applied firmly and uniformly to the carrier substance.
  • the active agents are easily removed from the carrier e. g. by light rubbing, resulting in their activation on the surface to be treated.
  • intermediate carriers which are inert withregard to the chemieally active substance are admixed therewith prior to the having anaflinity to fibrous substances is an alkylaryl polyglyool ether.
  • a method as claimed is claim 5, wherein the amount of alkylaryl polyglycol ether in the suspension or emulsion is 1 to 5% by weight.
  • hexachlorophenol is hexachloro-dioxo-diphenyl methane-2,2- dihydroxy-3,5,6,3',5',6 hexachloro-diphenyl methane.
  • wetting agent is a product of lipophilic or hydrophilic molecule colloids capable of spreading said emulsion over the surface of'said web without furthering a substantial impregnation of the latter.
  • a method of applying substances chemically active against microorganisms comprising at least one substance selected from the 'group'of deodorizing, disinfecting, fungicidal and bactericidal substances to the surfaces of a carrier web of paper-type fibrous material in such a manner that said substances remain separable from the web surface by light rubbing, comprising the steps of preparing a mixture of at least one of said chemically active substances in an agent having affinity to the fibrous material from which said carrier web is made, adding there to a finishing glue adhering to the surface, but non-penetrating into the interior of said web, and a wetting agent homogenizing said mixture to form an emulsion therefrom, swelling said carrier web by moistening the same, moving said web and spraying thereon continuously said emulsion so as to distribute the same evenly thereon as a doughlike chemically active layer, applyingpressure to said layer on said swelled web, thereby causing the layer to close the pores in said web, and subsequently drying said web, and layer to form

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Forests & Forestry (AREA)
  • Pest Control & Pesticides (AREA)
  • Animal Behavior & Ethology (AREA)
  • Agronomy & Crop Science (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Dentistry (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Paper (AREA)

Description

United States Patent Josef Ziegler,Mainz (Rhine), Germany, assignor to Hairle- Werke Hans Klenlr, Mainz -(RhineLGermany No Drawing. Application October 21 1955 Serial No. 542,110
Claims'priority, application Germany ct0ber,22 1-954 Claims. (Cl; 117- 60) This invention relates to a method of applying deodorizing, disinfecting, fungicidal and bactericidalsubstances to carriers, particularly fibrous carrier webs, which are used for' industrial, hygienic, andv medical purposes, such as. paper, crepe paper, cellulose, cellulose wadding, and 'thelike materials. I
The'impregnation of fibrous substances'with' various chemicals for the above purposes is known, The impregnation methods hitherto used suffer, however, from the disadvantage, as is e. g. the case with toilet paper, crepe paper and cellulose wadding that the chemicals incorporated in the carrier pores, do not have the desired effect when used, since the time'of application to e-. g. the body is too short to allow the disinfecting or thc'like agent adequately to become active. Moreover, a certain amount of moisture is usually required to be present in ice substances similar to those used as carriers e. g. specially prepared fibrous substances, and/or intermediate carrier substances of a different kind e. g. kieselguhr or the like, maybe admixed with the chemicals prior to the application to the carrier. These substances should have a suit.- able degree of fineness.
According to this invention it is immaterial whether one or a plurality of chemicals having different e. g. disinfecting and deodorizing propertiesare applied to the carrier substance surface at the same time.
It: is. preferredtouse such chemicals as are rubbed off easily on use and adhere then to the surface treated and are retained and thereby activated by themoisture present.
As agent having an affinity to the fibrous carrier webs preferably alkyl-aryl-polyglycol ether is used. Its concentration in the emulsion or suspension should be between 1 to 5% by weight.
Preferably surface e. g. finishing glues and/ or wetting agents which increase. the distribution on the web should be; admixed with the chemically active substance.
In a preferred embodiment of the invention the active substance: is first homogenized by stirring in the presence of wetting agents, surface glues and, if desired, a carrier substance. The homogenized mixture is introduced into. a vessel and then in a: per se known manner applied onto the moving, wet, and therefore swollen carrier web by;
order to dissolve and thus release theagentsincorporated paper or other carriers, are not absorbed, but remain adhering to the surface of the fibroussubstances and separate from their carrier as a line powder or fibrousfilm only whenused, e; g. on rubbing, and. adhere then m the place ofkthelbody to which theimpregn'ated material has been applied in the form of a thin filmor an extremely thin layer of powder. By means of the solubilizing action of the moisture of the body the active substances are retained and activated.
It has already been proposed to apply suitable powder layers to e. g. cellulose wadding and crepe paper, but the method of dry powdering the carrier substances is acco'mpanied by considerable and obvious disadvantages, which are founded in the production method itself, which in addition thereto is rather uneconomic. The dust present in the surrounding atmosphere during the manufacturing process may have an injurious effect on the health of the workmen, in particular if irritating and/or toxic chemicals are used. Finally, powder dust applied to the carrier by simple powdering is easily removed from its carrier by unsuitable storage or shipping, with the result that the products may be inactivated even before use.
With a view to overcoming the drawback of known methods, the invention consists in a method of applying chemically active e. g. deodorizing, disinfacting, fungicidal and bactericidal substances to fibrous carrier webs, such as for example paper, crepe paper, cellulose, cellulose wadding and the like materials, which substances are adapted to separate from the carrier web by light rubbing, wherein one or more of the chemically active substances is or are suspended or emulsified in agents having an afiinity to fibrous substances, and the suspension or emulsion is then applied to the carrier web in any manner known per se. The suspension or emulsion may be applied cold or warm and by any methods known per se, e. g. spraying, immersion, or mixing. If desired, fibrous means of rotating. rollers- The applied layer should be well distributed on the web and it is subsequently pressed into the open: pores of. the swollen web by means of a press roller; Dun'ng subsequent drying the dough-like chemically :activelayer forms azfilm andblocks the pores. The layermay be applied to one or both sides of the carrier web; In this manner the following effects are obtained:
(1) A uniform, chemically active film. isformed on. the
carrier: web which; is easily rubbed off.
(2:); The. pores .of the web are filled with the chemical and thereby blocked and closed.
.(3') Migratingbacteria which. maybe present on the fibres of the web will be killed by contact with the active chemical.
a Carrier webs treated: in this manner are thus provided with an effective, surface-active film which-'is easi ly-rubbed off.
In case a wetting agent with a surface tension which has a distributing effect is added to the active chemical, the eifect of the product is substantially increased.
The choice of surface glues is very important, since the closure of the pores and the rubbing off is dependent thereof.
In toilet paper, moreover, the softness and absorption ability of the paper is determined by the glue. All kinds of glues Which do not penetrate the carrier Web are suitable e. g. surface glues such as finishing glues.
As wetting agents products of the lipophilic or hydrophilic molecule colloids are suitable.
In case the impregnated carrier is to be used for disinfecting purpose, it has been found that as active chemical hexachlorophenols and in particular hexachloro-dioxodiphenyl-m-ethane-2,2' dihydroxy-3,5,6,3',5',6' hexachloro-diphenyl-methane are advantageously used.
The method according to the invention enables disinfecting and other substances of the kind referred to which hitherto could not, or only inadequately be made to adhere to the carrier, to be applied firmly and uniformly to the carrier substance. At the same time the active agents are easily removed from the carrier e. g. by light rubbing, resulting in their activation on the surface to be treated.
By using dispersion or suspension agents with an aflinity to fibrous substances, an increased adhesion of the active agentsto the carrier is obtained. Moreover, the stability of the final products and their storage capability is increased as contrasted to fibrous substances to which the active agents havebeen applied by simple powdering. A further important advantage is the complete absence of dust during the manufacture, so that injury to the health of the working staff is prevented. Moreover, no moisture is needed to release the active substances from the carrier substances. 1 What is claimed is:
-1. A method of :applying: substances chemically active againstmicroorganisms comprising at least one substance selected fromtbegroup of deodorizing, disinfecting, fungicidal and,bactericidallsubstances touthe surfaces of a carrier: web of paper-type'fibrous material in such a manner that said substances remain separable from the web surface by light rubbing, comprising the steps of preparinga mixtureof atleastjone ,of said chemically active ,a doughlike chemically active layer, applying pressure to said layer, on said swelledweb, thereby causing the layer 1 to close the pores in saidweb, and subsequently drying said web and layerto form'a surface film containing said chemically active'substances on said web,which film can easily berubbed off.
2. A method according to claim 1, wherein a finely dividedfibrous substance of the same material as said carrier web is admixed with the chemically active substance prior to the applicationtothe carrier web, so as to enhance the separability of said chemical active substance from said web.
3. A method as claimed in claim 1, wherein intermediate carriers which are inert withregard to the chemieally active substance are admixed therewith prior to the having anaflinity to fibrous substances is an alkylaryl polyglyool ether.
6. A method as claimed is claim 5, wherein the amount of alkylaryl polyglycol ether in the suspension or emulsion is 1 to 5% by weight.
7. A method as claimed in claim 1, wherein the chemically active substance is a hexachloro phenol.
8. A method as claimed in claim 7, wherein the hexachlorophenol is hexachloro-dioxo-diphenyl methane-2,2- dihydroxy-3,5,6,3',5',6 hexachloro-diphenyl methane.
9. A method a claimed in claim 1, wherein the wetting agent is a product of lipophilic or hydrophilic molecule colloids capable of spreading said emulsion over the surface of'said web without furthering a substantial impregnation of the latter.
10. A method of applying substances chemically active against microorganisms comprising at least one substance selected from the 'group'of deodorizing, disinfecting, fungicidal and bactericidal substances to the surfaces of a carrier web of paper-type fibrous material in such a manner that said substances remain separable from the web surface by light rubbing, comprising the steps of preparing a mixture of at least one of said chemically active substances in an agent having affinity to the fibrous material from which said carrier web is made, adding there to a finishing glue adhering to the surface, but non-penetrating into the interior of said web, and a wetting agent homogenizing said mixture to form an emulsion therefrom, swelling said carrier web by moistening the same, moving said web and spraying thereon continuously said emulsion so as to distribute the same evenly thereon as a doughlike chemically active layer, applyingpressure to said layer on said swelled web, thereby causing the layer to close the pores in said web, and subsequently drying said web, and layer to form a surface film containing said chemically active substances on said web, which film can easily berubbed off.
. References Cited in the file of this patent UNITED STATES PATENTS 2,436,673 Shelton Feb. 24, 1948

Claims (1)

1. A METHOD OF APPLYING SUBSTANCES CHEMICALLY ACTIVE AGAINST MICROORGANISMS COMPRISING AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP OF DEODORIZING, DISINFECTING, FUNGICIDAL AND BACTERICIDAL SUBSTANCES TO THE SURFACES OF A CARRIER WEB OF PAPER-TYPE FIBROUS MATERIAL IN SUCH A MANNER THAT SAID SUBSTANCES REMAIN SEPARABLE FROM THE WEB SURFACE BY LIGHT RUBBING, COMPRISING THE STEPS OF PREPARING A MIXTURE OF AT LEAST ONE OF SAID CHEMICALLY ACTIVE SUBSTANCES IN AN AGENT HAVING AFFINITY TO THE FIBROUS MATERIAL FROM WHICH SAID CARRIER WEB IS MADE, ADDING THERETO A FINISHING GLUE ADHERING TO THE SURFACE, BUT NON-PENETRATING INTO THE INTERIOR OF SAID WEB, AND A WETTING AGENT, HOMOGENIZING SAID MIXTURE TO FORM AN EMULSION THEREFROM, SWELLING SAID CARRIER WEB BY MOISTENING THE SAME, MOVING SAID WEB AND APPLYING THEREON CONTINUOUSLY SAID EMULSION SO AS TO DISTRIBUTE THE SAME EVENLY THEREON AS A DOUGHLIKE CHEMICALLY ACTIVE LAYER, APPLYING PRESSURE TO SAID LAYER ON SAID SWELLED WEB, THEREBY CAUSING THE LAYER TO CLOSE THE PORES IN SAID WEB, AND SUBSEQUENTLY DRYING SAID WEB AND LAYER TO FORM A SURFACE FILM CONTAINING SAID CHEMICALLY ACTIVE SUBSTANCES ON SAID WEB, WHICH FILM CAN EASILY BE RUBBED OFF.
US542110A 1954-10-22 1955-10-21 Method of applying deodorising, disinfecting, fungicidal and bactericidal substances to carriers and in particular fibrous carrier substances Expired - Lifetime US2833669A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093546A (en) * 1958-12-18 1963-06-11 Johnson & Johnson Absorbent product
US3138533A (en) * 1958-05-27 1964-06-23 Leo J Heim Sanitary tissues
US3194732A (en) * 1960-10-03 1965-07-13 Neuhauser Irene Assisting healing of skin-denuded areas on the body with dried non-fibrous egg-shellmembrane products and compositions therefor
US3196075A (en) * 1960-10-03 1965-07-20 Neuhauser Irene Assisting healing of skin-denuded areas on the human body with dried fibrous egg-shell membrane products and compositions therefor
US3544364A (en) * 1968-05-01 1970-12-01 Tenneco Chem Solid hydroxylated substrate treated with a prolonged odor releasing composition
US3567118A (en) * 1968-09-05 1971-03-02 Nat Patent Dev Corp Entrapped essences in dry composite fiber base products giving a strong fragrance when wet in water
US4199322A (en) * 1978-08-17 1980-04-22 The United States Of America As Represented By The Secretary Of Agriculture Antibacterial textile finishes utilizing zinc acetate and hydrogen peroxide
US4533435A (en) * 1984-06-07 1985-08-06 Microban Products Company Antimicrobial paper
US4834967A (en) * 1988-03-17 1989-05-30 Frank Locicero Method of removing ticks and leeches from mammals
US5242052A (en) * 1990-06-14 1993-09-07 Highland Supply Corporation Antimicrobial material and methods
US20040149409A1 (en) * 2003-01-21 2004-08-05 Fred Klimpl Antimicrobial paper
US20050154030A1 (en) * 2003-12-12 2005-07-14 Microban Products Company Antimicrobial composition
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786004A (en) * 1904-07-01 1905-03-28 Max Cohn Method of preparing dressings for bandages.
US1144291A (en) * 1912-06-12 1915-06-22 Albert G Mccaler Insole.
US2250480A (en) * 1939-03-18 1941-07-29 Burton T Bush Inc Dihydroxy hexachloro diphenyl methane and method of producing the same
US2334572A (en) * 1941-12-29 1943-11-16 Carborundum Co Manufacture of abrasive materials
US2349152A (en) * 1941-09-10 1944-05-16 American Cyanamid Co Impregnating gauze
US2436673A (en) * 1944-05-11 1948-02-24 Wm S Merrell Co Therapeutic peroxide composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786004A (en) * 1904-07-01 1905-03-28 Max Cohn Method of preparing dressings for bandages.
US1144291A (en) * 1912-06-12 1915-06-22 Albert G Mccaler Insole.
US2250480A (en) * 1939-03-18 1941-07-29 Burton T Bush Inc Dihydroxy hexachloro diphenyl methane and method of producing the same
US2349152A (en) * 1941-09-10 1944-05-16 American Cyanamid Co Impregnating gauze
US2334572A (en) * 1941-12-29 1943-11-16 Carborundum Co Manufacture of abrasive materials
US2436673A (en) * 1944-05-11 1948-02-24 Wm S Merrell Co Therapeutic peroxide composition

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138533A (en) * 1958-05-27 1964-06-23 Leo J Heim Sanitary tissues
US3093546A (en) * 1958-12-18 1963-06-11 Johnson & Johnson Absorbent product
US3194732A (en) * 1960-10-03 1965-07-13 Neuhauser Irene Assisting healing of skin-denuded areas on the body with dried non-fibrous egg-shellmembrane products and compositions therefor
US3196075A (en) * 1960-10-03 1965-07-20 Neuhauser Irene Assisting healing of skin-denuded areas on the human body with dried fibrous egg-shell membrane products and compositions therefor
US3544364A (en) * 1968-05-01 1970-12-01 Tenneco Chem Solid hydroxylated substrate treated with a prolonged odor releasing composition
US3567118A (en) * 1968-09-05 1971-03-02 Nat Patent Dev Corp Entrapped essences in dry composite fiber base products giving a strong fragrance when wet in water
US4199322A (en) * 1978-08-17 1980-04-22 The United States Of America As Represented By The Secretary Of Agriculture Antibacterial textile finishes utilizing zinc acetate and hydrogen peroxide
US4533435A (en) * 1984-06-07 1985-08-06 Microban Products Company Antimicrobial paper
US4834967A (en) * 1988-03-17 1989-05-30 Frank Locicero Method of removing ticks and leeches from mammals
US5242052A (en) * 1990-06-14 1993-09-07 Highland Supply Corporation Antimicrobial material and methods
US20040149409A1 (en) * 2003-01-21 2004-08-05 Fred Klimpl Antimicrobial paper
US6939442B2 (en) 2003-01-21 2005-09-06 Silverco Llc Antimicrobial paper
US20050199360A1 (en) * 2003-01-21 2005-09-15 Silverco Llc Antimicrobial paper
US20050154030A1 (en) * 2003-12-12 2005-07-14 Microban Products Company Antimicrobial composition
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
US8574683B2 (en) 2005-09-30 2013-11-05 Rayonier Trs Holdings, Inc. Method of making a pulp sheet of odor-inhibiting absorbent fibers

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