Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.


  1. Búsqueda avanzada de patentes
Número de publicaciónUS3016599 A
Tipo de publicaciónConcesión
Fecha de publicación16 Ene 1962
Fecha de presentación1 Jun 1954
Fecha de prioridad1 Jun 1954
Número de publicaciónUS 3016599 A, US 3016599A, US-A-3016599, US3016599 A, US3016599A
InventoresJr Robert W Perry
Cesionario originalDu Pont
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Microfiber and staple fiber batt
US 3016599 A
Resumen  disponible en
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

Jan. 16, 1962 R. w. PERRY, JR


BY Maw ATTORNEY States 3,016,509 MTCRQFEEER AND STAPLE FIBER BATT Robert W. Perry, .ha, Manchester, Tenn, assignor to E. I. tin Pont de Nemours and Company, Wilmington, DeL, a corporation of Delaware Filed June l, 1954, Ser. No. 433,600 1 @laim. (Cl. 2878) This invention relates to a method of uniformly mixing microfibers as defined hereinafter with conventional textile staple fibers from synthetic materials and the products made thereby.

In the manufacture of textile materials it often is desirable to mix staple fibers of different origin. Mixing procedures include carding, picking, and blowing the fiber mixtures or the components into an enclosure. These methods are satisfactory only as long as the component staple fibers have relatively similar physical dimensions and specific weights. As these property differences become more pronounced, homogeneity becomes more and more difficult to attain. Unduly long processing times are often necessary. Indeed when very great differences exist in the dimensions of the staple fibers to be mixed it sometimes becomes impossible to obtain homogeneity by conventional processes.

It is an object of the present invention to provide a method of producing homogeneous mixtures of manmade staple fibers wherein one of the fibers has extremely small dimensions compared with the other.

Another object is to provide a method for producing a homegeneous batt of textile staple fibers and microfibers.

A further object is to provide a high strength sheetlike material having very fine pores.

These and other objects will become apparent in the course of the following specification and claim.

By the term microfiber as used herein is meant a funicular structure having a diameter of about one micron or less. It may or may not possess molecular orientation along its longitudinal axis. Such a fiber may vary in length from a few microns to several inches.

Microfibers are produced by melting a synthetic linear polymer and applying a gaseous jet to a thin layer of the molten polymer. Fine droplets of the polymer are torn off this layer and at the same time attenuated to fine fibers having on an average a diameter of less than 1 micron. The fibers are cooled by the gas stream sulficiently to solidify and at the same time they are carried by the gas stream away from the source of production. Apparatus suitable for the production of such fiber is described in US. 2,508,462. The equipment is operated with a fine jet orifice and at very high jet velocities.

The objects of the present invention are accomplished by continuously feeding a gaseous stream bearing staple fiber into a gaseous stream containing freshly-formed microfiber and thereafter collecting the mixture.

The invention will be more readily understood by reference to the drawing.

The figure is a diagrammatic representation of the essential components and their relationship in the production in accordance with the present invention of a halt of a mixture of staple and very fine fibers.

Referring more particularly to the figure, a continuous tow it, of man-made material is fed over drive roll 2 into staple cutter 3. The staple cutter is fitted with a jet 4 into which a gas supply 5 leads so as to remove the staple substantially as rapidly as it is cut. The gas stream bearing the staple is directed by tube 6 to mesh with a jet of freshly formed microfiber. The microfiber is produced at microfiber jet 7 which is fed with polymer supply The gas borne mixed fibers 9 are deposited on a rotating drum 10 from which they are atlases Patented Jan. 16, 1962 removed by doctor knife 11 onto collecting screen 12. The formed batt 13 may thereafter be used as such or subjected to further treatment to produce strengthening ribs or the like.

Any fiber-forming polymeric material may be used for producing the microfibers provided that it can be heated to a temperature high enough above its melting or softening point to form a liquid melt without being substantially degraded before the gaseous jet is applied. Since many of the polymeric materials tend to decompose at elevated temperature, especially when exposed to air or other oxidizing gases it is often advantageous to blanket the melt with a non-oxidizing gas, for instance carbon dioxide, nitrogen, or superheated steam. The preferred polymers for microfiber production include the polyamides, for instance polyhexamethylene adipamide; the polyesters, for instance polyethylene terephthalate; the vinyl polymers, for instance polyvinyl chloride; and cellulose derivatives, for instance cellulose acetate. With many polymeric materials it may be of advantage to incorporate a solvent or plasticizer to lower the melting point sufiiciently for microfiber formation. Such solvent or plasticizer may be subsequently removed as by flashing off in the gas stream, which may be heated for this purpose.

The dimensions of the microfibers may widely vary within the previously defined limits depending upon the design of the apparatus employed and the conditions of its use. The nature of the polymer, the temperature of its melt, the velocity and temperature of the jetted gas and the like are variables which will affect the dimensions of the microfiber. The mixing process of the invention is of particular importance with microfibers which have a diameter below about 0.5 micron. Those with diameters as low as of a micron or even lower are suitable. Their length may vary from a few hundred microns to several inches. Usually they are not oriented in the sense of the term as it is used in the art. However, under certain conditions they sometimes show some molecular orientation. Both oriented and nonoriented microfibers are suitable for use in this invention. They may be in the form of single fibers or webs or the like. They may be of variable cross-section.

No method is known whereby formed and collected microfibers can be uniformly distributed among textile staple fibers. It is important therefore, that the microfiber be mixed with the staple fiber while each is susended in a gaseous stream. The fiber bearing streams must converge in such fashion that their jets are of suificiently high velocity to cause homogeneous mixing of the two different types of fibers through turbulence. In order to obtain a uniform and substantially homogeneous mixture of the two types of fibers it is neces sary to deliver the textile staple in a substantially continuous fashion. A very satisfactory way of uniformly delivering the staple fibers consists in cutting continuous fibers to the desired staple length and introducing them, e.g., with the help of a rapid gas stream, into the gas stream containing the microfibers as they are delivered from the nozzle. It is not feasible to collect them before they are introduced into the microfiber stream. Any conventional cutter system can be used which delivers the cut staple in one limited area at a very uniform rate. The cutter may be of the stationary or rotary type or of the oscillatory type. Apparatus as described in U.S. Patent 2,226,130 is suitable. The gas stream which carries the staple in a well dispersed form from the cutter may also be used for delivering the continuous filaments to the cutter. A cutter which provides about 1,000 cuts per minute gives satisfactory results. A cutter providing several thousand up to 3,000 or more cuts per minute is preferred.

The staple fiber suitable for use in the present invent-ionincludes any staplefiber or mixture of fibers produced from man-made materials for use in non-woven or woven textile materials. These fibers may be oriented or unoriented. They may be elastic. Their deniers may vary from as low as 1 to as high as 100 or above. The length of the single staple fiber may vary from a few millimeters to centimeters or more. Staple amenable to the process include those produced from regenerated cellulose, cellulose derivatives such as cellulose acetate, polycondensation products such as polyamides and polyesters and the polymers obtained by addition polymerization from ethylenically unsaturated low molecular compounds, for instance acrylonitrile, vinylidene chloride, vinyl chloride and copolymers thereof. Any desired microfiber can be mixed according to the present invention with any desired textile staple fiber.

Furthermore, two or more different staple fibers may be mixed with one or several diflerent micro-fibers. In this instance either the microfibers or also the textile staple used together may be different with respect to dimensions, physical properties and/or chemical composition.

The absolute velocity of either of the gas streams, i.e., that carrying the microfiber or that carrying the staple is not critical. Uniformity of product requires that the velocity in either gas stream be substantially constant during any particular operation. ln general the microfiber stream should have a velocity as high as possible to promote production and distribution of microfiber. The gas stream for the staple fiber must be of sufiicien-t magnitude to carry the staple from the cutting apparatus at least as far as the collecting screen.

The homogeneous fiber mixtures may be collected on a stationary screen-like surface in the form of loose felt-like batt. They are removed after they have attained the desired thickness and weight. Alternatively they may be collected in a continuous fashion on a rotating cylindrical, perforated surface or on a mo ving'perforated belt-like conveyor from which they may be removed either intermittently or continuously.

The batts of the homogeneous fiber mixture can be handled and/or after-treated in the conventional manner. Thus, they canbe pressed to form sheet-like structures. The mechanical strength and resistance of such structures is of the same order as that of sheets made from the same staple fibers alone. The presence of the staple fibers provides them with excellent dimensional stability which is of importance especially when the structures are employed in such uses as filtering, particularly of gases. The mechanical properties of the sheets prevent packing and clogging. At the same time the size of the pores is considerably smaller than those of sheets from the same staple fiber having no microfibers admixed. The pore size can easily be controlled by selecting microfibers with a smaller or greater diameter or by varying the proportion of microfiber and staple. Particles in a range of sizes of .01 to about 1 micron can be readily filtered from a gas stream. They are also very useful in a wide field of similar applications.

The mechanical strength of the sheet-like structures of the present invention can be increased using a potentially adhesive staple. By this is meant a staple which can be rendered temporarily adhesive by the use of heat, solvent, plasticizer or the like. After the batt is formed,

one or several components can be made adhesive and in this fashion a bond can be created to improve structural rigidity. When a solvent or plasticizer is used for rendering one or all of the batt components adhesive, materials which would deleteriously affect any component must be avoided. Increased stability may be attained by spot-bonding" leaving the greater portion of the batt highly porous. A preferred way of performing this 'is the application of a grid-like pattern wherein adhering components lie in narrow parallel lines to the surface. In the case of hexamethylene adiparnide staple and polyethylene terephthalate microfiber mixtures, nitric acid can be used as plasticiz'er for the polyamide. The bonding may also be accomplished by addition of a known adhesive, with or without subsequent curing. Among such materials may be mentioned rubber latex, phenOLformaldehyde resins,urea-formaldehyde resins, cellulose ac tate solutions and the like. In order to produce sheet structures with maximum strength according to this method it is of advantage to use textile staple, the average length of which is at least twice as long as the distance between adjacent lines of adherence.

Though generally the microfibers and staple fibers can be used in any desired ratio, mixtures containing between 25% and by weight of microfibers are preferred. The microfibers and the staple forming the new mixtures of this invention may be formed from the same material. However, those wherein the microfibers are from a mater-ial different than that of the staple fibers are preferred.

The new method permits the production of homogeneous mixtures of microfiber and staple in a convenient and controllable manner in any desired composition and ratio. Many other equivalent modifications will be apparent to those skilled in the art from a reading of the description above without a departure from the inventive concept.

What is claimed is:

A composition of matter comprising a butt of homogeneously mixed microfiber produced firom a synthetic linear polymer and staple, produced from a man-made continuous filament, said microfiber having an average diameter of less than about 1 micron and said staple fiber having a denier of at least 1, the mixture containing between 25 and 70% microfibers on a weight basis.

References Cited in the file of this patent UNITED STATES PATENTS 1,695,805 Gatti Dec. 18, 1928 1,928,699 Neal Oct. 3, 1933 2,181,043 Boeddinghaus Nov. 21, 1939 2,232,647 Zirkman Feb. 18, 1941 2,287,815 Modigliani June 30, 1942 2,336,797 Maxwell Dec. 14, 1943 2,357,392 Francis Sept. 5, 1944 2,370,365 Magill Feb. 27, 1945 2,477,000 Osborne July 26, 1949 2,496,665 Hermanson Feb. 7, 19.50 2,543,101 Francis Feb. 27, 1951 2,626,213 Novak Jan. 20, 1953 2,721,139 Arledter Oct. 18, 1955 2,731,679 Kennette et a1. Jan. 24, 1956 2,765,247 Graham Get. 2, 1956

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US1695805 *2 Feb 192818 Dic 1928Gatti Service IncWadding and bat
US1928699 *6 Oct 19313 Oct 1933Johns ManvilleMethod of making mineral wool mixture
US2181043 *8 Jul 193921 Nov 1939American Felt CoFelted fabric and method of making the same
US2232647 *20 May 193818 Feb 1941Charles Lachman Co IncTextile fabric
US2287815 *3 Mar 193930 Jun 1942Owens Corning Fiberglass CorpMethod of making mat of glass fibers
US2336797 *19 Jun 193914 Dic 1943Du PontFelted product
US2357392 *1 Mar 19415 Sep 1944Sylvania Ind CorpProcess for producing fibrous products
US2370365 *25 Jul 194227 Feb 1945Sears Roebuck & CoHeat insulating batt
US2477000 *22 Ago 194626 Jul 1949C H Dexter & Sons IncSynthetic fiber paper
US2496665 *10 Jun 19497 Feb 1950Hermanson William AComposite transparent sheet
US2543101 *20 Jul 194427 Feb 1951American Viscose CorpComposite fibrous products and method of making them
US2626213 *21 Dic 194820 Ene 1953Raybestos Manhattan IncAsbestos dispersions and method of forming same
US2721139 *27 Ago 195218 Oct 1955Hurlbut Paper CompanyPaper manufacture
US2731679 *3 Jun 195224 Ene 1956Chicopee Mfg CorpMethod of making nonwoven fabric
US2765247 *14 Abr 19532 Oct 1956Du PontNon-woven sheet material
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3167845 *19 Jul 19602 Feb 1965Du PontBulk yarn process and apparatus
US3168434 *1 Mar 19622 Feb 1965Acim Paper CorpPaper-backed mica
US3229008 *5 Dic 196111 Ene 1966Eastman Kodak CoProcess for producing a polypropylene fibrous product bonded with polyethylene
US3255508 *8 Oct 196414 Jun 1966Du PontApparatus for crimping textile yarn
US3271231 *15 Jun 19626 Sep 1966Armstrong Cork CoAir-laid, flexible, self-supporting sheet
US3382305 *29 Oct 19547 May 1968Du PontProcess for preparing oriented microfibers
US3413182 *21 Feb 196626 Nov 1968Kendall & CoPatterned non-woven fabrics comprising electrically-spun polymeric filaments
US3458387 *14 Jun 196629 Jul 1969Monsanto CoFlexible non-woven sheet material and method of making the same
US3521328 *23 Jun 196621 Jul 1970Du PontProcess for carding microcellular fibers
US3546063 *1 Mar 19688 Dic 1970Du PontMicrofibers and shaped structures containing microfibers
US3630823 *16 Sep 196928 Dic 1971Du PontCocarded blend of microcellular and conventional fibers
US3751767 *28 Ene 197114 Ago 1973Kendall & CoProcess for the formation of fibrous webs of staple fiber from continuous textile filaments
US3755064 *25 May 197128 Ago 1973NcrWater insoluble polymeric web structures and filaments containing encapsulated components
US3772136 *20 Abr 197113 Nov 1973Gen Mills IncFibrous products from thermoplastic polyamide polymers
US3790434 *15 Abr 19715 Feb 1974Japan Exlan Co LtdSynthetic fibers for artificial hair and production thereof
US3914501 *17 May 197321 Oct 1975Union Carbide CorpPorous products and processes therefor
US3916447 *24 Abr 19724 Nov 1975Kimberly Clark CoLow cost, absorbent, clinging, aqueous liquid barrier protective covering
US3953282 *6 May 197427 Abr 1976Mitsubishi Rayon Company LimitedProcess for manufacturing paper-like synthetic sheet
US4000967 *26 Jul 19734 Ene 1977Exxon Research And Engineering CompanyWettable non-woven structures and components thereof
US4041203 *4 Oct 19769 Ago 1977Kimberly-Clark CorporationNonwoven thermoplastic fabric
US4042740 *20 Sep 197416 Ago 1977Minnesota Mining And Manufacturing CompanyReinforced pillowed microfiber webs
US4100324 *19 Jul 197611 Jul 1978Kimberly-Clark CorporationNonwoven fabric and method of producing same
US4118531 *4 Nov 19773 Oct 1978Minnesota Mining And Manufacturing CompanyWeb of blended microfibers and crimped bulking fibers
US4205108 *12 May 197727 May 1980Firma Carl FreudenbergSurface finished fabric
US4215682 *6 Feb 19785 Ago 1980Minnesota Mining And Manufacturing CompanyMelt-blown fibrous electrets
US4224373 *26 Dic 197823 Sep 1980Owens-Corning Fiberglas CorporationFibrous product of non-woven glass fibers and method and apparatus for producing same
US4274914 *11 Oct 197923 Jun 1981Celanese CorporationFilter material
US4279979 *9 Nov 197821 Jul 1981The Dexter CorporationNonwoven fibrous substrate for battery separator
US4286977 *15 Oct 19791 Sep 1981Max KleinHigh efficiency particulate air filter
US4315721 *25 Sep 198016 Feb 1982American Can CompanyFibrous web structure and its manufacture
US4370289 *12 Dic 198025 Ene 1983American Can CompanyFibrous web structure and its manufacture
US4381274 *25 Ago 198026 Abr 1983Akzona IncorporatedProcess for the production of a multicomponent yarn composed of at least two synthetic polymer components
US4396366 *20 Sep 19822 Ago 1983Akzona IncorporatedDevice for the production of a multicomponent yarn composed of at least two synthetic polymer components
US4472541 *1 Oct 198218 Sep 1984The Bendix CorporationSecondary matrix reinforcement using carbon microfibers
US4493868 *17 Ene 198315 Ene 1985Kimberly-Clark CorporationHigh bulk bonding pattern and method
US4508775 *28 Dic 19832 Abr 1985Pall CorporationGas permeable composite structures
US4547420 *11 Oct 198315 Oct 1985Minnesota Mining And Manufacturing CompanyBicomponent fibers and webs made therefrom
US4564552 *5 Oct 198414 Ene 1986Pall CorporationGas permeable, water and oil resistant composite structure
US4588635 *26 Sep 198513 May 1986Albany International Corp.Synthetic down
US4623576 *22 Oct 198518 Nov 1986Kimberly-Clark CorporationLightweight nonwoven tissue and method of manufacture
US4642262 *9 Mar 198410 Feb 1987Dynamit Nobel AgMethod of making fibrids from thermoplastics
US4650481 *22 Feb 198517 Mar 1987Kimberly-Clark CorporationCrinkled, quilted absorbent pad
US4692368 *15 Oct 19868 Sep 1987Kimberly-Clark CorporationElastic spunlaced polyester-meltblown polyetherurethane laminate
US4713068 *31 Oct 198615 Dic 1987Kimberly-Clark CorporationBreathable clothlike barrier having controlled structure defensive composite
US4713069 *31 Oct 198615 Dic 1987Kimberly-Clark CorporationBaffle having zoned water vapor permeability
US4729371 *25 Sep 19868 Mar 1988Minnesota Mining And Manufacturing CompanyRespirator comprised of blown bicomponent fibers
US4758239 *31 Oct 198619 Jul 1988Kimberly-Clark CorporationBreathable barrier
US4762749 *2 Ago 19859 Ago 1988Owens-Corning Fiberglas CorporationFibrous polymer insulation
US4767825 *22 Dic 198630 Ago 1988Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4773903 *2 Jun 198727 Sep 1988The Procter & Gamble Co.Composite absorbent structures
US4777080 *15 Oct 198611 Oct 1988Kimberly-Clark CorporationElastic abrasion resistant laminate
US4781966 *15 Oct 19861 Nov 1988Kimberly-Clark CorporationSpunlaced polyester-meltblown polyetherester laminate
US4795668 *31 Jul 19873 Ene 1989Minnesota Mining And Manufacturing CompanyBicomponent fibers and webs made therefrom
US4801482 *15 Oct 198631 Ene 1989Kimberly-Clark CorporationElastic nonwoven pad
US4806598 *22 Dic 198621 Feb 1989Kimberly-Clark CorporationThermoplastic polymer blends and nonwoven webs prepared therefrom
US4813948 *1 Sep 198721 Mar 1989Minnesota Mining And Manufacturing CompanyMicrowebs and nonwoven materials containing microwebs
US4818600 *9 Dic 19874 Abr 1989Kimberly-Clark CorporationLatex coated breathable barrier
US4820577 *22 Dic 198611 Abr 1989Kimberly-Clark CorporationMeltblown superabsorbent thermoplastic compositions
US4833013 *2 May 198823 May 1989Owens-Corning Fiberglas CorporationFibrous polymer insulation
US4842924 *25 Ago 198627 Jun 1989Farris Richard JNovel compositions based on reinforcement with microfibrillar networks of rigid-rod polymers
US4847141 *26 Feb 198811 Jul 1989Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4855179 *29 Jul 19878 Ago 1989Arco Chemical Technology, Inc.Production of nonwoven fibrous articles
US4857251 *14 Abr 198815 Ago 1989Kimberly-Clark CorporationMethod of forming a nonwoven web from a surface-segregatable thermoplastic composition
US4865596 *1 Sep 198712 Sep 1989The Procter & Gamble CompanyComposite absorbent structures and absorbent articles containing such structures
US4882213 *29 Abr 198821 Nov 1989Weyerhaeuser CompanyAbsorbent article with tear line guide
US4885200 *29 Abr 19885 Dic 1989Weyerhaeuser CompanyInfant car seat liner
US4886697 *29 Abr 198812 Dic 1989Weyerhaeuser CompanyThermoplastic material containing absorbent pad or other article
US4891454 *29 Abr 19882 Ene 1990Weyerhaeuser CompanyInfant car seat liner
US4892769 *29 Abr 19889 Ene 1990Weyerhaeuser CompanyFire resistant thermoplastic material containing absorbent article
US4894280 *21 Dic 198716 Ene 1990Kimberly-Clark CorporationFlexible, tear resistant composite sheet material and a method for producing the same
US4900377 *29 Abr 198813 Feb 1990Weyerhaeuser CompanyMethod of making a limited life pad
US4921645 *4 Ene 19891 May 1990Minnesota Mining And Manufacturing CompanyProcess of forming microwebs and nonwoven materials containing microwebs
US4923454 *20 Ene 19888 May 1990The Procter & Gamble CompanyMicrofiber-containing absorbent structures and absorbent articles
US4961930 *29 Abr 19889 Oct 1990Weyerhaeuser CompanyPet pad of thermoplastic containing materials with insecticide
US4963638 *23 Feb 198916 Oct 1990Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4988560 *21 Dic 198729 Ene 1991Minnesota Mining And Manufacturing CompanyOriented melt-blown fibers, processes for making such fibers, and webs made from such fibers
US5037409 *12 Jul 19906 Ago 1991Kimberly-Clark CorporationAbsorbent article having a hydrophilic flow-modulating layer
US5085920 *30 Abr 19904 Feb 1992Kimberly-Clark CorporationNonwoven wipe having improved grease release
US5100435 *4 Dic 199031 Mar 1992Kimberly-Clark CorporationMeltblown nonwoven webs made from epoxy/pcl blends
US5102601 *19 Dic 19887 Abr 1992Farris Richard JProcess for fabricating novel compostes based on reinforcement with microfibrillar networks of rigid-rod polymers
US5141699 *16 Ene 199025 Ago 1992Minnesota Mining And Manufacturing CompanyProcess for making oriented melt-blown microfibers
US5145727 *26 Nov 19908 Sep 1992Kimberly-Clark CorporationMultilayer nonwoven composite structure
US5149576 *26 Nov 199022 Sep 1992Kimberly-Clark CorporationMultilayer nonwoven laminiferous structure
US5178931 *17 Jun 199212 Ene 1993Kimberly-Clark CorporationThree-layer nonwoven laminiferous structure
US5178932 *17 Jun 199212 Ene 1993Kimberly-Clark CorporationThree-layer nonwoven composite structure
US5192606 *11 Sep 19919 Mar 1993Kimberly-Clark CorporationAbsorbent article having a liner which exhibits improved softness and dryness, and provides for rapid uptake of liquid
US5244525 *20 Jul 199214 Sep 1993Kimberly-Clark CorporationMethods for bonding, cutting and printing polymeric materials using xerographic printing of IR absorbing material
US5244723 *3 Ene 199214 Sep 1993Kimberly-Clark CorporationFilaments, tow, and webs formed by hydraulic spinning
US5244947 *31 Dic 199114 Sep 1993Kimberly-Clark CorporationStabilization of polyolefin nonwoven webs against actinic radiation
US5283023 *3 Ene 19921 Feb 1994Kimberly-Clark CorporationMethod of imparting delayed wettability to a nonwoven web
US5295986 *15 Abr 199222 Mar 1994Kimberly-Clark CorporationNewborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears
US5300167 *11 Jun 19935 Abr 1994Kimberly-ClarkMethod of preparing a nonwoven web having delayed antimicrobial activity
US5342335 *22 Dic 199330 Ago 1994Kimberly-Clark CorporationNonwoven web of poly(vinyl alcohol) fibers
US5344862 *25 Oct 19916 Sep 1994Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5350620 *24 Ene 199227 Sep 1994Minnesota Mining And ManufacturingFiltration media comprising non-charged meltblown fibers and electrically charged staple fibers
US5364382 *17 Ene 199215 Nov 1994Kimberly-Clark CorporationAbsorbent structure having improved fluid surge management and product incorporating same
US5366453 *20 Ago 199322 Nov 1994Kimberly-Clark CorporationNewborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears
US5382703 *6 Nov 199217 Ene 1995Kimberly-Clark CorporationElectron beam-graftable compound and product from its use
US5413655 *6 Abr 19949 May 1995Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5429629 *5 Oct 19934 Jul 1995Kimberly-Clark CorporationAbsorbent structure having improved fluid surge management and product incorporating same
US5445785 *22 Dic 199329 Ago 1995Kimberly-Clark CorporationMethod of preparing a nonwoven web of poly(vinyl alcohol) fibers
US5451437 *21 Jun 199319 Sep 1995Minnesota Mining And Manufacturing CompanyMethod and article for protecting a container that holds a fluid
US5455074 *29 Dic 19923 Oct 1995Kimberly-Clark CorporationLaminating method and products made thereby
US5458822 *21 Jun 199317 Oct 1995Owens-Corning Fiberglas Technology, Inc.Method for manufacturing a mineral fiber product
US5489282 *15 Dic 19936 Feb 1996Kimberly-Clark CorporationNewborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears
US5490961 *21 Jun 199313 Feb 1996Owens-Corning Fiberglas Technology, Inc.Method for manufacturing a mineral fiber product
US5494855 *30 Nov 199427 Feb 1996Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5509915 *22 Jul 199323 Abr 1996Kimberly-Clark CorporationThin absorbent article having rapid uptake of liquid
US5516572 *18 Mar 199414 May 1996The Procter & Gamble CompanyLow rewet topsheet and disposable absorbent article
US5529596 *2 May 199425 Jun 1996Owens-Corning Fiberglas Technology, Inc.Method for making dual-glass fibers by causing one glass to flow around another glass as they are spun from a rotating spinner
US5547746 *22 Nov 199320 Ago 1996Kimberly-Clark CorporationHigh strength fine spunbound fiber and fabric
US5567372 *26 May 199422 Oct 1996Kimberly-Clark CorporationMethod for preparing a nonwoven web containing antimicrobial siloxane quaternary ammonium salts
US5569732 *25 May 199529 Oct 1996Kimberly-Clark CorporationAntimicrobial siloxane quaternary ammonium salts
US5578369 *25 May 199526 Nov 1996Kimberly-Clark CorporationLaminating method and products made thereby
US5582632 *11 May 199410 Dic 1996Kimberly-Clark CorporationCorona-assisted electrostatic filtration apparatus and method
US5582905 *22 Jun 199510 Dic 1996Beck; Martin H.Polyester insulation
US5595584 *29 Dic 199421 Ene 1997Owens Corning Fiberglas Technology, Inc.Method of alternate commingling of mineral fibers and organic fibers
US5601542 *25 Mar 199611 Feb 1997Kimberly-Clark CorporationAbsorbent composite
US5614132 *7 Jun 199525 Mar 1997Owens Corning Fiberglas Technology, Inc.Method for manufacturing a mineral fiber product
US5618622 *30 Jun 19958 Abr 1997Kimberly-Clark CorporationSurface-modified fibrous material as a filtration medium
US5620759 *22 May 199515 Abr 1997Minnesota Mining And Manufacturing CompanyContainer protected by a conformable sorbent sleeve
US5641822 *14 Abr 199524 Jun 1997Kimberly-Clark CorporationSurface-segregatable compositions and nonwoven webs prepared therefrom
US5656361 *23 Jul 199612 Ago 1997Kimberly-Clark Worldwide, Inc.Multiple application meltblown nonwoven wet wipe and method
US5667750 *14 Feb 199616 Sep 1997Kimberly-Clark CorporationProcess of making a nonwoven web
US5685873 *30 Mar 199411 Nov 1997Kimberly-Clark Worldwide, Inc.Disposable diaper having differentially stretchable ears with childproof fastening
US5688465 *13 May 199618 Nov 1997Kimberly-Clark Worldwide, Inc.Method of corona treating a hydrophobic sheet material
US5696191 *31 May 19959 Dic 1997Kimberly-Clark Worldwide, Inc.Surface-segregatable compositions and nonwoven webs prepared therefrom
US5697200 *22 May 199516 Dic 1997Minnesota Mining And Manufacturing CompanyMethod and article for protecting a container that holds a fluid
US5698294 *11 Oct 199616 Dic 1997Kimberly-Clark Worldwide, Inc.Sterilization wrap material
US5698481 *24 Oct 199616 Dic 1997Kimberly-Clark Worldwide, Inc.Sterilization wrap material
US5700531 *17 Nov 199523 Dic 1997Kimberly-Clark Worldwide, Inc.Pull-activated container
US5720832 *6 Jun 199524 Feb 1998Kimberly-Clark Ltd.Method of making a meltblown nonwoven web containing absorbent particles
US5733603 *5 Jun 199631 Mar 1998Kimberly-Clark CorporationSurface modification of hydrophobic polymer substrate
US5736475 *9 Abr 19977 Abr 1998Owens Corning Fiberglas Technology, Inc.Mineral fiber product containing polymeric material
US5738745 *27 Nov 199514 Abr 1998Kimberly-Clark Worldwide, Inc.Method of improving the photostability of polypropylene compositions
US5741564 *22 Jun 199521 Abr 1998Kimberly-Clark Worldwide, Inc.Stretch-activated container
US5744548 *30 Oct 199628 Abr 1998Kimberly-Clark Worldwide, Inc.Melt-extrudable thermoplastic polypropylene composition and nonwoven web prepared therefrom
US5773120 *28 Feb 199730 Jun 1998Kimberly-Clark Worldwide, Inc.Loop material for hook-and-loop fastening system
US5777010 *23 Jul 19967 Jul 1998Kimberly-Clark Worldwide, Inc.Melt-extrudable compositions containing antimicrobial siloxane quaternary ammonium salts
US5780369 *30 Jun 199714 Jul 1998Kimberly-Clark Worldwide, Inc.Saturated cellulosic substrate
US5800866 *6 Dic 19961 Sep 1998Kimberly-Clark Worldwide, Inc.Method of preparing small particle dispersions
US5801106 *10 May 19961 Sep 1998Kimberly-Clark Worldwide, Inc.Polymeric strands with high surface area or altered surface properties
US5803106 *21 Dic 19958 Sep 1998Kimberly-Clark Worldwide, Inc.Ultrasonic apparatus and method for increasing the flow rate of a liquid through an orifice
US5839608 *30 Ene 199724 Nov 1998Kimberly-Clark Worldwide, Inc.Stretch-activated container
US5841081 *21 Jun 199624 Nov 1998Minnesota Mining And Manufacturing CompanyMethod of attenuating sound, and acoustical insulation therefor
US5853641 *20 Abr 199829 Dic 1998Kimberly-Clark Worldwide, Inc.Method for preparing polyolefin fibers containing antimicrobial siloxane quarternary ammonium salts
US5853883 *20 Abr 199829 Dic 1998Kimberly-Clark Worldwide, Inc.Polyolefin fibers containing antimicrobial siloxane quaternary ammonium salts
US5854147 *20 Abr 199829 Dic 1998Kimberly-Clark Worldwide, Inc.Non-woven web containing antimicrobial siloxane quaternary ammonium salts
US5868153 *21 Dic 19959 Feb 1999Kimberly-Clark Worldwide, Inc.Ultrasonic liquid flow control apparatus and method
US5925712 *20 Oct 199720 Jul 1999Kimberly-Clark Worldwide, Inc.Fusible printable coating for durable images
US5932299 *22 Abr 19973 Ago 1999Katoot; Mohammad W.Method for modifying the surface of an object
US5962149 *20 Oct 19975 Oct 1999Kimberly-Clark Worldwide, Inc.Fusible printable coating for durable images
US5993943 *15 Jul 199230 Nov 19993M Innovative Properties CompanyOriented melt-blown fibers, processes for making such fibers and webs made from such fibers
US5998023 *9 Ene 19987 Dic 1999Kimberly-Clark Worldwide, Inc.Surface modification of hydrophobic polymer substrate
US6020277 *10 May 19961 Feb 2000Kimberly-Clark CorporationPolymeric strands with enhanced tensile strength, nonwoven webs including such strands, and methods for making same
US6033739 *5 Abr 19997 Mar 2000Kimberly-Clark Worldwide, Inc.Fusible printing coating for durable images
US6036467 *25 Nov 199714 Mar 2000Kimberly-Clark Worldwide, Inc.Apparatus for ultrasonically assisted melt extrusion of fibers
US6046378 *12 Mar 19974 Abr 2000Kimberly-Clark Worldwide, Inc.Wettable article
US6053424 *21 Dic 199525 Abr 2000Kimberly-Clark Worldwide, Inc.Apparatus and method for ultrasonically producing a spray of liquid
US6057256 *18 Dic 19872 May 20003M Innovative Properties CompanyWeb of biocomponent blown fibers
US6060410 *22 Abr 19989 May 2000Gillberg-Laforce; Gunilla ElsaCoating of a hydrophobic polymer substrate with a nonstoichiometric polyelectrolyte complex
US6120888 *30 Jun 199719 Sep 2000Kimberly-Clark Worldwide, Inc.Ink jet printable, saturated hydroentangled cellulosic substrate
US6162535 *6 Dic 199619 Dic 2000Kimberly-Clark Worldwide, Inc.Ferroelectric fibers and applications therefor
US624204110 Nov 19985 Jun 2001Mohammad W. KatootMethod and composition for modifying the surface of an object
US63152158 Feb 200013 Nov 2001Kimberly-Clark Worldwide, Inc.Apparatus and method for ultrasonically self-cleaning an orifice
US638026421 Dic 199530 Abr 2002Kimberly-Clark CorporationApparatus and method for emulsifying a pressurized multi-component liquid
US639521610 Ene 200028 May 2002Kimberly-Clark Worldwide, Inc.Method and apparatus for ultrasonically assisted melt extrusion of fibers
US640385825 Mar 199911 Jun 2002Kimberly-Clark Worldwide, Inc.Wettable article
US645041718 Sep 200017 Sep 2002Kimberly-Clark Worldwide Inc.Ultrasonic liquid fuel injection apparatus and method
US654370026 Jul 20018 Abr 2003Kimberly-Clark Worldwide, Inc.Ultrasonic unitized fuel injector with ceramic valve body
US6571960 *16 Abr 20013 Jun 2003Kimberly-Clark Worldwide, Inc.Faucet-mounted water filtration device
US657320527 Ene 20003 Jun 2003Kimberly-Clark Worldwide, Inc.Stable electret polymeric articles
US664617920 Dic 199611 Nov 2003Kimberly-Clark Worldwide, Inc.Absorbent composite
US66593651 Abr 20029 Dic 2003Kimberly-Clark Worldwide, Inc.Ultrasonic liquid fuel injection apparatus and method
US666302726 Jul 200116 Dic 2003Kimberly-Clark Worldwide, Inc.Unitized injector modified for ultrasonically stimulated operation
US675935628 Jun 19996 Jul 2004Kimberly-Clark Worldwide, Inc.Fibrous electret polymeric articles
US6827764 *25 Jul 20027 Dic 20043M Innovative Properties CompanyMolded filter element that contains thermally bonded staple fibers and electrically-charged microfibers
US684645020 Jun 200225 Ene 20053M Innovative Properties CompanyMethod for making a nonwoven web
US685855112 Mar 199922 Feb 2005Kimberly-Clark Worldwide, Inc.Ferroelectric fibers and applications therefor
US686102520 Jun 20021 Mar 20053M Innovative Properties CompanyAttenuating fluid manifold for meltblowing die
US688077011 Jul 200319 Abr 2005Kimberly-Clark Worldwide, Inc.Method of retrofitting an unitized injector for ultrasonically stimulated operation
US68939908 Abr 200317 May 2005Kimberly Clark Worldwide, Inc.Stable electret polymeric articles
US697210423 Dic 20036 Dic 2005Kimberly-Clark Worldwide, Inc.Meltblown die having a reduced size
US70189452 Jul 200228 Mar 2006Kimberly-Clark Worldwide, Inc.Composition and method for treating fibers and nonwoven substrates
US769090215 Jun 20076 Abr 20103M Innovative Properties CompanyNonwoven web forming apparatus
US798937122 Jun 20072 Ago 20113M Innovative Properties CompanyMeltblown fiber web with staple fibers
US798937222 Jun 20072 Ago 20113M Innovative Properties CompanyMolded respirator comprising meltblown fiber web with staple fibers
US823638529 Abr 20057 Ago 2012Kimberly Clark CorporationTreatment of substrates for improving ink adhesion to the substrates
US84960889 Nov 201130 Jul 2013Milliken & CompanyAcoustic composite
US20040113309 *5 Dic 200317 Jun 20043M Innovative Properties CompanyFibrous nonwoven webs
US20040121675 *23 Dic 200224 Jun 2004Kimberly-Clark Worklwide, Inc.Treatment of substrates for improving ink adhesion to the substrates
US20040121680 *23 Dic 200224 Jun 2004Kimberly-Clark Worldwide, Inc.Compositions and methods for treating lofty nonwoven substrates
US20050133971 *23 Dic 200323 Jun 2005Haynes Bryan D.Meltblown die having a reduced size
US20050136242 *22 Dic 200323 Jun 2005Kimberly-Clark Worldwide, Inc.Porous substrates having one side treated at a higher concentration and methods of treating porous substrates
US20050136773 *22 Dic 200323 Jun 2005Kimberly-Clark Worldwide, Inc.Treated nonwoven material
US20050161214 *25 Ene 200528 Jul 2005Morten MyhreRotationally locked wear sleeve for through-tubing drilling and completion
CN101688342B7 May 200831 Ago 20113M创新有限公司Meltblown fiber web with staple fibers
DE2402896A1 *22 Ene 197425 Jul 1974StamicarbonVerfahren und vorrichtung zur herstellung von polymerfasern
DE2735063A1 *1 Ago 19779 Feb 1978Minnesota Mining & MfgBahn aus mit gekrimpften lockerungsfasern vermischten mikrofasern
DE2747749A1 *21 Oct 197726 Abr 1979Kimberly Clark CoStrong absorbent nonwoven fabric - has thermoplastic polymer microfibrous matrix contg. entangled wood pulp fibres
DE3331226A1 *30 Ago 19838 Mar 1984Kimberly Clark CoUngewebtes wischtuch-laminat
DE3411515A1 *28 Mar 19844 Oct 1984Kimberly Clark CoWischer auf der basis von vliesmaterial
DE10302079A1 *21 Ene 20035 Ago 2004Corovin GmbhProcess and assembly to produce a bulk layer of synthetic fleece has a mechanical thread compression unit positioned between thread bundling unit and conical outlet
DE10302079B4 *21 Ene 200320 Abr 2006Corovin GmbhVorrichtung und Verfahren zur Herstellung von gekräuselten Spinnvliesfasern oder gekräuselten schmelzgeblasenen Vliesfilamenten aus geschmolzenem thermoplastischen Material
EP0080382A2 *24 Nov 19821 Jun 1983Kimberly-Clark LimitedMicrofibre web product
EP0080383A2 *24 Nov 19821 Jun 1983Kimberly-Clark LimitedMicrofibre web product
EP0156160A2 *24 Nov 19822 Oct 1985Kimberly-Clark LimitedMicrofibre web product
WO1983001965A1 *24 Nov 19829 Jun 1983Minto, Ahmad, MansoorMicrofibre web product
WO1996026013A1 *21 Feb 199629 Ago 1996James A Adamoli JrSpray technique for loose fill insulation
WO2001046029A25 Dic 200028 Jun 2001Kimberly Clark CoFiltering cap for bottled fluids
WO2004011123A2 *16 Jun 20035 Feb 20043M Innovative Properties CoMolded filter element that contains thermally bonded staple fibers and electrically-charged microfibers
WO2009002612A1 *7 May 200831 Dic 20083M Innovative Properties CoMeltblown fiber web with staple fibers
WO2009002614A1 *7 May 200831 Dic 20083M Innovative Properties CoMethod of making meltblown fiber web with staple fibers
Clasificación de EE.UU.428/338, 57/255, 162/157.3, 162/157.4, 264/122, 19/145.5, 19/304, 162/146, 428/359, 428/903, 425/82.1, 162/157.5, 264/115
Clasificación internacionalD04H1/56
Clasificación cooperativaY10S428/903, D04H1/56
Clasificación europeaD04H1/56