|Publication number||US3575782 A|
|Publication date||Apr 20, 1971|
|Filing date||May 19, 1967|
|Priority date||May 19, 1967|
|Also published as||DE1760436A1, DE1760436B2|
|Publication number||US 3575782 A, US 3575782A, US-A-3575782, US3575782 A, US3575782A|
|Inventors||Paul E Hansen|
|Original Assignee||Minnesota Mining & Mfg|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (178), Classifications (16)|
|External Links: USPTO, USPTO Assignment, Espacenet|
April 2, 3971 P. E. HANSEN 3,575,732
ELASTIC SHIRRED WEB PRODUCT Filed May 19, 1967 INVENTOR.
840; f. fi /v55 BY M F W Unite States 3,575,782 ELASTIC SHIRRED WEB PRODUCT Paul E. Hansen, North St. Paul, Minn, assignor to Minnesota Mining and Manufacturing Company, St. Paul, Minn.
Filed May 19, 1967, Ser. No. 639,689 Int. Cl. D8411 5/04 U.S. Cl. 161141 Claims ABSTRACT OF THE DISCLOSURE A covering material consists of partially extended spaced aligned elastic yarns sealed between two thin porous gathered non-woven fibrous webs, or between a web and a non-porous film, by means of a soft flexible polymeric coherent binder.
This invention relates to elastic web or sheet material and to methods of making the same. Elastic shirred or corrugated fabrics are described, as early as U.S. Pat. No. 22,038 as consisting of threads of india rubber stretched and bonded between two laminae of cloth and then permitted to retract thereby causing puckering or gathering of the fabric to provide the desired shirred effect. The rubber yans aeetaoinshdluwCMFM sirred effect. The rubber yarns are substantially completely retracted. The sheet is heavy and bulky and is only moderately porous. Cut edges must be prevented from raveling or separation by folding and cementing.
The present invention in one important aspect likewise involves the formation of a shirred or puckered fabriclike web or sheet material but distinguishes over the products of the prior art in a number of significant and unanticipated respects. The sheet is extremely thin yet surprisingly strong. Despite the high proportion of polymeric binder, the sheet remains high in porosity. It may be stretched sufficiently to overcome all puckering by simple hand pulling, and will then retract to its initial length and appearance upon release of tension. Surprisingly, it may be caused to undergo significant additional shrinkage under appropriate treatment, yet is dimensionally unchanged under normal storage and use conditions.
In one preferred form the product of the invention has utility as a self-adherent porous elastic bandage. In the usual widths of six inches or less the strip is easily stretched to any degree desired up to the full extensibility of the material, and when then wound about an injured member is found to conform fully and to be self-adherent. In applying a knee or ankle bandage, for example, the strip may be placed under minimum holding tension at the extremities and under much greater tension along the sprained or otherwise injured central section of the affected member. The bandage remains under tension 7 and firmly in place, yet does not adhere to the skin and is easily removed by stripping when desired.
In another form the product is non-adherent at noraml temperatures but may be sealed to itself under heat and pressure, thereby making possible the simplified preparation of shaped elastic coverings such for example as gloves, caps, or bags.
In the drawing,
FIG. 1 is a schematic representation showing the manufacture of the elastic sheet material, and
3,575,782 Patented Apr. 20, 1971 FIG. 2 is a representation in plan view of a portion of the product.
As shown in FIG. 1, elastic yarns 10 from a beam 11 are unwound under tension provided by a brake 12 and through a comb 14. Thin non-woven fibrous webs 15 and 17, from supply drums 16 and 18 respectively or di rectly from the forming machine if desired, are brought into contact with the yarns and with each other between squeeze rolls 19 and 20, the latter dipping into a pan 21 containing a fiuid binder mixture 22. The composite web passes directly into a drying oven 24 and thence between pull drums 25 and 26. The web next passes around idler roll 27, between heating platens 28 and 29, around pull drum 30 and idler roll 31, and is wound up to form stock roll 32.
Squeeze rolls 19 and rotate at a considerably greater surface speed than does beam 11, and the yarns 10 are accordingly stretched a corresponding amount. This stretch is maintained by operating pull drums and 26 and turn-around drum 27 at the same or slightly higher speed compared with rollers 19 and 20. Pull drum and windup drum 32, however, are again operated at a slower speed to permit shrinkage of the web as it passes between the heater plates 28 and 29. The composite web 34, which is smooth as it reaches the roll 27, becomes increasingly puckered or shirred as it passes through the heating zone, the result being further indicated in FIG. 2.
In an illustrative example, the yarns 10 are 820 denier Lycra spandex or linear polyurethane monofil'aments spaced six yarns per inch of width and each of webs 15 and 16 consists of 1%. denier staple rayon fibers of inch length, formed into a non-woven batt weighing approximately one-fourth ounce per square yard. Centrifuged natural rubber latex at 60% concentration serves as the fluid binder mixture 22, and the amount retained in the composite web is sufficient nearly to double the weight of the web after drying. The beam 11 has a surface speed of 7 feet per minute, whereas, the speed at rolls 19 and 20 is 30 ft./min., that at rolls 25, 26 and 27 is 32 ft./min., and that at rolls 30 and 32 is 20 ft./min.
The heat supplied by the platens 28 and 29 is sufficient to cause considerable fuming of the sheet material and to relax the structure sufficiently to permit the elastomeric yarns to retract and produce the desired degree of puckering or shirring as controlled by the speed of the pull drum 30. The temperature may be regulated by adjusting both the energy input to the platens and the distance between the platens and the web. In a typical installation for producing a web having a finished width of 32 inches before trimming, the electrically heated platens are each 15 inches high and inches wide, and are spaced between six and nine inches from the web. A thermometer placed adjacent the web between the platens registers about 200- 250 F. The duration of the heat treatment may be regulated, for a given length of platen, by adjusting the speed of travel of the web, sufficient time being provided to permit retraction of the web to the desired degree. The platens are maintained at a temperature sufficient to keep the web taut during the shrinking operation between rolls 27 and 30 at the speed indicated but not so high as to cause deterioration of the web as evidenced by excessive fuming and discoloration thereof. For most purposes the length of the relaxed web after retraction will be within the range of about one-third to about two-thirds the fully extended length. The elastic yarns are initially stretched to a length of about three to five times their fully relaxed length, and are permitted to relax only partially during the puckering step. Nevertheless the shirred product is dimensionally stable, the heat treatment serving to provide an effective degree of heat-setting or stabilizing, and neither shrinks nor expands when allowed to stand at normal temperatures and under no external stress; and it returns to such dimensions when first stretched and then permitted to retract. It is possible further to shrink the web, for example by at least an additional ten percent in the product made as above described, by further heating it sufficiently under stress-free or limited-stress conditions; but the structure obtained by shrinking to Within the approximate limits heretofore stated is found to provide a balance of properties best suited to the utility of the material for the purposes indicated and is greatly preferred. Thus the product when designed as an elastic self-adhering bandage may be resiliently extensible to a length of about 12 inches from a relaxed length of six or seven inches, whereas a product destined for the preparation of a cap, bowl cover, arm band, or similar article may be elastically stretched to as much as 20 or 21 inches from a relaxed length of seven inches.
In other illustrative examples the elastic yarn has been 1120 denier spandex elastic yarn or No. 70 rubber yarn, and the number of yarns has varied from two to eight per inch of width at the comb 40 and up to about 40% by weight of the total weight of the web, although preferably not exceeding about 8 ot 10 percent.
The thin fibrous matts are conveniently prepared on a garnetting machine or preferably on a Rando-Webber machine. Matts of polyester or rayon staple fibers or mixtures are preferred. The fibers are desirably of about 1 /2 denier and about to 1 /2 inch in length, and the matt is about A to /2 oz./sq. yd. or about 5-10 lb. per 320 sq. yd. These very thin matts are fragile and flimsy, but show surprising strength when combined in composite structures of the type and in the manner hereinabove indicated. Where the flimsiness of the untreated matt presents inordinate difficulties in handling, the matt as first formed may be reinforced by lightly treating with a compatible bonding agent. As an example, the reinforced matt may consist of 90 parts by weight of viscose rayon fibers and ten parts of polyethyl acrylate, the latter being applied at the forming machine by saturating with a dilute emulsion of the polymer, removing the excess between squeeze rolls, and drying in an oven.
Concentrated natural rubber latex is preferred as the impregnating and bonding or unifying medium where coherency between layers of the sheet product is desired. Other elastomers or blends of elastomers having similar properties may be used. The dried rubbery residue, although presenting a slightly tacky feel, does not adhere to the skin, but coherently bonds to itself with sufiicient force to hold the contacting layers together against reasonably high shearing stresses. For those applications in which bonding is to be achieved only at elevated temperatures, polymers such as polyethyl acrylate are substituted for the self-tacky rubbery polymers, a suitable commercially available material being Rhoplex Bl5 polyethyl acrylate dispersion. These impregnating and bonding materials may be used without further modification, but will ordinarily be blended with pigments or other visual modifiers. For products which are to be used as surgical wrappings or the like it is usually preferred to incorporate pigments of the type and in the amount required to produce a flesh color in the sheet product, an example being a mixture of 50 grams each of Kohnstamm Cosmetic Umber No. 1985 and Raw Sienna No. 2673 pigments in each ten gallons of the liquid latex. For decorative applications other color bodies may be substituted as desired.
An example of a sheet having particular utility as a c0- hesive bandage is made with four ends of 1120 denier spandex elastic yarn per inch of width, sandwiched between two non-woven fibrous webs each weighing A ounce per sq. yd. and containing of 1 /2 denier inch polyester fibers and 10% of polyethyl acrylate, the whole weighing 15 lbs./ 320 sq. yds. and being impregnated and held together with an additional 25 lbs/320 sq. yds. of lightly pigmented natural rubber. The sheet in shirred or puckered form has an apparent caliper of 20 mils, a yarn count of slightly more than five ends per inch width, and weighs lbs./ 320 sq. yds., whereas in fully stretched or extended form the caliper is 7 mils, the thickness in both instances being determined with a papermakers caliper having a pressure foot and anvil onehalf inch in diameter. The porosity reading, ice. the time required to pass 400 ml. of air through a sample one square inch in area in the Model 4118 Gurley Densometer, is six seconds.
For many applications a nonporous structure is preferred. Such materials, having the desirable stretchiness and retractability of the products hereinabove described but in addition being non-porous and water-repellent, and being capable of being coherently bonded to themselves under pressure applied either at room temperature or at elevated temperature, are particularly useful as waterresistant wrapping or bandaging materials or in the manufacture of elastic waterproof coverings such as bowl covers or shower caps. The substitution, for one of the porous webs 15 or 16, of a thin flexible film or foil, of which 0.4 mil polyethylene film or thin bright aluminum foil are illustrative, results in non-porous elastic webs having these desirable properties. The use of brightly colored, patterned, or reflective films or foils for such purposes provides a particularly attractive decorative elastic sheet material.
What is claimed is as follows:
1. A self-bonding elastic shirred web product comprising a series of spaced elastic yarns between coextensive thin webs of which at least one is a non-woven porous fibrous web, the whole being uniformly impregnated throughout and bonded together in a unified structure with a polymeric binder having a weight per unit area at least equal to the weight per unit area of said webs, said yarns being maintained under partial tension in said unified structure, said web product being resiliently extensible under hand pulling to the extent of at least about one-third of its length.
2. The product of claim 1 wherein each web is a nonwoven porous fibrous web.
3. The product of claim 2 wherein said web is coherently bondable at least at moderately elevated temperatures and is elastically extensible to at least about twice its relaxed length.
4. The product of claim 1 further characterized as being coherently bondable under pressure at normal room temperature and wherein said polymeric binder comprises natural latex rubber.
5. The product of claim 1 further characterized as being coherently bondable under heat and pressure and wherein said polymeric binder comprises a soft non-tacky synthetic polymer.
6. The product of claim 1 wherein said elastic yarns are uniformly spaced at about two to about eight yarns per inch width.
7. An article of manufacture comprising two segments of the elastic web product of claim 1 coherently bonded together along an overlapping marginal area.
8. The product of claim 1 wherein one of said thin Webs is a polymeric film.
'9. The product of claim 1 wherein one of said thin webs is a metal foil.
10. The product of claim 1 wherein one of said webs comprises a reflective film.
(References on following page) References Cited UNITED STATES PATENTS Solis 156161 Plechner 16177X 5 Scheuer 16177X Martin 161-76X Galligan et a1 161-76 ROW 156183 10 6 2,561,891 7/1951 Tucker 161Met. Foil 3,316,136 4/1967 Pufahl 156160 3,468,748 9/1968 Bassett 161-122 ROBERT F. BURNETT, Primary Examiner R. L. MAY, Assistant Examiner US. Cl. X.R.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3770541 *||Feb 12, 1971||Nov 6, 1973||Vera Fabrikker As||Method for producing tubes of reinforced setting plastic material|
|US3837338 *||Nov 24, 1972||Sep 24, 1974||Kendall & Co||Conformable nonwoven bandage|
|US3993818 *||Jun 2, 1975||Nov 23, 1976||United Technologies Corporation||Resin bonded composite articles and process for fabrication thereof|
|US4292360 *||Mar 5, 1980||Sep 29, 1981||Minnesota Mining And Manufacturing Company||Pressure sensitive adhesive tape|
|US4366814 *||Apr 6, 1981||Jan 4, 1983||Minnesota Mining And Manufacturing Company||Elastic bandage material|
|US4439391 *||Jan 7, 1981||Mar 27, 1984||International Paper Company||Polymeric sheets|
|US4543154 *||Nov 4, 1983||Sep 24, 1985||The Procter & Gamble Company||Method for severing a laminated web containing a dimensionally heat unstable layer to produce non-linear shirred edges|
|US4552795 *||Dec 27, 1983||Nov 12, 1985||Minnesota Mining And Manufacturing Co.||Inelastic, heat-elasticizable sheet material|
|US4563185 *||May 17, 1985||Jan 7, 1986||The Procter & Gamble Company||Disposable diaper having elasticized waistband with non-linear severed edge|
|US4640859 *||Sep 23, 1985||Feb 3, 1987||Minnesota Mining And Manufacturing Company||Inelastic, heat-elasticizable sheet material for diapers|
|US4663106 *||Aug 22, 1985||May 5, 1987||Kimberly-Clark Corporation||Formation of elasticized portions of disposable garments and other articles|
|US4749084 *||Nov 12, 1986||Jun 7, 1988||Minnesota Mining And Manufacturing Co.||Tamper-indicating package with randomly disposed filaments|
|US4879169 *||Apr 11, 1988||Nov 7, 1989||E. I. Du Pont De Nemours And Company||Quilted elastic composite fabric|
|US4944958 *||Apr 28, 1989||Jul 31, 1990||Karl Otto Braun Kg||Method of manufacturing a cohesive bandage|
|US4973513 *||Apr 4, 1990||Nov 27, 1990||Minnesota Mining And Manufacturing Company||Process for applying a release coating to a wet nonwoven backing and article|
|US4984584 *||May 8, 1990||Jan 15, 1991||Riker Laboratories, Inc.||High elastic modulus bandage|
|US5078138 *||Jun 6, 1990||Jan 7, 1992||Minnesota Mining And Manufacturing Company||Biomedical electrode construction having a non-woven material|
|US5143679 *||Feb 28, 1991||Sep 1, 1992||The Procter & Gamble Company||Method for sequentially stretching zero strain stretch laminate web to impart elasticity thereto without rupturing the web|
|US5156589 *||Oct 24, 1991||Oct 20, 1992||Karl Otto Braun Kg||Cohesive bandage|
|US5156793 *||Feb 28, 1991||Oct 20, 1992||The Procter & Gamble Company||Method for incrementally stretching zero strain stretch laminate web in a non-uniform manner to impart a varying degree of elasticity thereto|
|US5167897 *||Feb 28, 1991||Dec 1, 1992||The Procter & Gamble Company||Method for incrementally stretching a zero strain stretch laminate web to impart elasticity thereto|
|US5209801 *||Aug 6, 1991||May 11, 1993||Weyerhaeuser Company||Method of forming a disposable elastic structure|
|US5230701 *||Feb 25, 1992||Jul 27, 1993||Minnesota Mining And Manufacturing Company||Elastomeric adhesive and cohesive materials|
|US5232777 *||Sep 23, 1991||Aug 3, 1993||Minnesota Mining And Manufacturing Company||Elastic strand construction|
|US5249322 *||Aug 24, 1992||Oct 5, 1993||Louisville Bedding Co., Inc.||Fitted mattress cover and method of making same|
|US5366793 *||Apr 7, 1992||Nov 22, 1994||Kimberly Clark Co||Anisotropic nonwoven fibrous web|
|US5385775 *||Dec 9, 1991||Jan 31, 1995||Kimberly-Clark Corporation||Composite elastic material including an anisotropic elastic fibrous web and process to make the same|
|US5431644 *||Mar 31, 1993||Jul 11, 1995||Minnesota Mining And Manufacturing Company||Elastic strand construction|
|US5451219 *||Jul 28, 1993||Sep 19, 1995||Paragon Trade Brands, Inc.||Stretchable absorbent article|
|US5496603 *||May 16, 1995||Mar 5, 1996||Minnesota Mining And Manufacturing Company||Nonwoven sheet materials, tapes and methods|
|US5496605 *||Aug 18, 1995||Mar 5, 1996||Minnesota Mining And Manufacturing Company||Perforated roll of nonwoven surgical tape|
|US5499917 *||Dec 14, 1994||Mar 19, 1996||Minnesota Mining And Manufacturing Company||Dental isolation dam|
|US5503908 *||Jul 6, 1994||Apr 2, 1996||Kimberly-Clark Corporation||Self-adhesive nonwoven elastic compressible composite material|
|US5616387 *||Oct 16, 1995||Apr 1, 1997||Minnesota Mining And Manufacturing Company||Perforated roll of elastic wrap|
|US5623888 *||Jan 27, 1995||Apr 29, 1997||E. I. Du Pont De Nemours And Company||Bulky, stable nonwoven fabric|
|US5631073 *||Sep 16, 1996||May 20, 1997||Minnesota Mining And Manufacturing Company||Nonwoven sheet materials, tapes and methods|
|US5636393 *||Mar 2, 1995||Jun 10, 1997||Pillowtex Corporation||Mattress cover with inelastically stretchable skirt|
|US5679190 *||Jun 19, 1996||Oct 21, 1997||Minnesota Mining And Manufacturing Company||Method of making nonwoven sheet materials, tapes|
|US5762623 *||Jun 30, 1997||Jun 9, 1998||Andover Coated Products, Inc.||Elastic bandage|
|US5904710 *||Aug 21, 1997||May 18, 1999||The Procter & Gamble Company||Disposable elastic thermal body wrap|
|US5906637 *||Aug 21, 1997||May 25, 1999||The Procter & Gamble Company||Disposable elastic thermal uniaxial joint wrap|
|US5939339 *||Oct 4, 1996||Aug 17, 1999||3M Innovative Properties Company||Absorbent self adhering elastic bandage|
|US6057024 *||Oct 31, 1997||May 2, 2000||Kimberly-Clark Worldwide, Inc.||Composite elastic material with ribbon-shaped filaments|
|US6063473 *||Jun 11, 1996||May 16, 2000||Xymid L.L.C.||Abrasion-resistant composite sheet|
|US6064120 *||Aug 21, 1997||May 16, 2000||Micron Technology, Inc.||Apparatus and method for face-to-face connection of a die face to a substrate with polymer electrodes|
|US6074505 *||Jul 15, 1996||Jun 13, 2000||The Procter & Gamble Company||Structure and method of forming a laminate structure|
|US6093663 *||Mar 2, 1999||Jul 25, 2000||The Procter & Gamble Company||Structure and method of forming a laminate structure|
|US6156424 *||Oct 31, 1997||Dec 5, 2000||Andover Coated Products, Inc.||Cohesive products|
|US6245401||Mar 12, 1999||Jun 12, 2001||Kimberly-Clark Worldwide, Inc.||Segmented conformable breathable films|
|US6383958||Jun 18, 1999||May 7, 2002||David P. Swanson||Nonwoven sheets, adhesive articles, and methods for making the same|
|US6387471||Apr 15, 1999||May 14, 2002||Kimberly-Clark Worldwide, Inc.||Creep resistant composite elastic material with improved aesthetics, dimensional stability and inherent latency and method of producing same|
|US6503855||Nov 19, 1999||Jan 7, 2003||3M Innovative Properties Company||Laminated composites|
|US6547915||Feb 8, 2002||Apr 15, 2003||Kimberly-Clark Worldwide, Inc.||Creep resistant composite elastic material with improved aesthetics, dimensional stability and inherent latency and method of producing same|
|US6569139||Jun 22, 2000||May 27, 2003||Kimberly-Clark Worldwide, Inc.||Disposable absorbent underpants for containing body fluid|
|US6663584||Aug 27, 2001||Dec 16, 2003||Kimberly-Clark Worldwide Inc.||Elastic bandage|
|US6713415 *||Apr 12, 2001||Mar 30, 2004||E. I. Du Pont De Nemours And Company||Uniform stretchable fabric with flat surface appearance|
|US6833179||May 14, 2001||Dec 21, 2004||Kimberly-Clark Worldwide, Inc.||Targeted elastic laminate having zones of different basis weights|
|US6835256||Oct 29, 2002||Dec 28, 2004||3M Innovative Properties Company||Laminated composites|
|US6902796||Dec 28, 2001||Jun 7, 2005||Kimberly-Clark Worldwide, Inc.||Elastic strand bonded laminate|
|US6939334||Dec 19, 2001||Sep 6, 2005||Kimberly-Clark Worldwide, Inc.||Three dimensional profiling of an elastic hot melt pressure sensitive adhesive to provide areas of differential tension|
|US6964720||Mar 26, 2003||Nov 15, 2005||The Procter & Gamble Company||Elastomeric nonwoven laminates and process for producing same|
|US6967178||Dec 26, 2002||Nov 22, 2005||Kimberly-Clark Worldwide, Inc.||Elastic strand laminate|
|US6969441||May 14, 2001||Nov 29, 2005||Kimberly-Clark Worldwide, Inc.||Method and apparatus for producing laminated articles|
|US6978486||Dec 26, 2002||Dec 27, 2005||Kimberly-Clark Worldwide, Inc.||Garment including an elastomeric composite laminate|
|US6994763||Oct 23, 2003||Feb 7, 2006||Advanced Design Concept Gmbh||Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics|
|US6994904||May 2, 2001||Feb 7, 2006||3M Innovative Properties Company||Pressure sensitive adhesive fibers with a reinforcing material|
|US7015155||Jul 2, 2002||Mar 21, 2006||Kimberly-Clark Worldwide, Inc.||Elastomeric adhesive|
|US7028735||Jun 2, 2003||Apr 18, 2006||The Procter & Gamble Company||Method and apparatus for producing elastomeric nonwoven laminates|
|US7135213||Jul 31, 2003||Nov 14, 2006||3M Innovative Properties Company||Tearable elastic composite article and method of manufacture|
|US7150731||Sep 2, 2004||Dec 19, 2006||Kimberly-Clark Worldwide, Inc.||Disposable absorbent underpants|
|US7211531||Sep 13, 2005||May 1, 2007||The Procter & Gamble Company||Elastomeric nonwoven laminates and process for producing same|
|US7222654||Apr 30, 2004||May 29, 2007||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US7309522||Jul 8, 2004||Dec 18, 2007||Advanced Design Concepts Gmbh||Fibers made from block copolymer|
|US7316840||Jul 2, 2002||Jan 8, 2008||Kimberly-Clark Worldwide, Inc.||Strand-reinforced composite material|
|US7316842||Nov 4, 2003||Jan 8, 2008||Kimberly-Clark Worldwide, Inc.||High-viscosity elastomeric adhesive composition|
|US7344524||Aug 19, 2004||Mar 18, 2008||Kimberly-Clark Worldwide, Inc.||Disposable absorbent underpants|
|US7389804||Apr 17, 2007||Jun 24, 2008||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US7398570||Oct 2, 2006||Jul 15, 2008||Louisville Bedding Company||Mattress cover with fit enhancing composite end panels|
|US7476288||Mar 17, 2006||Jan 13, 2009||The Procter & Gamble Company||Method and apparatus for producing elastomeric nonwoven laminates|
|US7476438||Sep 10, 2004||Jan 13, 2009||Gorres Geoffrey H||Modified self-adherent wrap|
|US7601657||Dec 31, 2003||Oct 13, 2009||Kimberly-Clark Worldwide, Inc.||Single sided stretch bonded laminates, and methods of making same|
|US7683234||Aug 3, 2007||Mar 23, 2010||The Board Of Trustees Of The Leland Stanford Junior University||Devices and bandages for the treatment or prevention of scars and/or keloids and methods and kits therefor|
|US7695583||Apr 13, 2010||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US7758712||Jul 20, 2010||3M Innovative Properties Company||Tearable elastic composite article and method of manufacture|
|US7850809||Dec 14, 2010||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US7854716||Apr 5, 2006||Dec 21, 2010||3M Innovative Properties Company||Compression bandage system|
|US7923505||Nov 13, 2007||Apr 12, 2011||Kimberly-Clark Worldwide, Inc.||High-viscosity elastomeric adhesive composition|
|US7981231||Jul 19, 2011||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US8007614||Aug 27, 2010||Aug 30, 2011||The Procter & Gamble Company||Elastomeric nonwoven laminates and process for producing same|
|US8043984||Oct 25, 2011||Kimberly-Clark Worldwide, Inc.||Single sided stretch bonded laminates, and methods of making same|
|US8063263||Nov 22, 2011||The Board Of Trustees Of The Leland Stanford Junior University||Methods for the treatment or prevention of scars and/or keloids|
|US8114234||Jun 9, 2011||Feb 14, 2012||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US8168850||Jan 22, 2009||May 1, 2012||The Board Of Trustees Of The Leland Stanford Junior University||Methods for the treatment or prevention of scars and/or keloids|
|US8182457||May 14, 2001||May 22, 2012||Kimberly-Clark Worldwide, Inc.||Garment having an apparent elastic band|
|US8183428||Jan 22, 2009||May 22, 2012||The Board Of Trustees Of The Leland Stanford Junior University||Treatment or prevention of scars and/or keloids|
|US8389791||Mar 5, 2013||The Board Of Trustees Of The Leland Stanford Junior University||Treatment devices and methods with extending elements|
|US8395011||Dec 8, 2011||Mar 12, 2013||Neodyne Biosciences, Inc.||Segmented skin treatment systems and methods|
|US8403873||Nov 12, 2010||Mar 26, 2013||3M Innovative Properties Company||Compression bandage system|
|US8486210||Jan 17, 2012||Jul 16, 2013||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US8592640||Aug 11, 2010||Nov 26, 2013||Neodyne Biosciences, Inc.||Devices and methods for dressing applicators|
|US8674164||Apr 18, 2011||Mar 18, 2014||Neodyne Bioscience, Inc.||Segmented skin treatment systems and methods|
|US8721943||Dec 17, 2010||May 13, 2014||3M Innovative Properties Company||Process of making dimensionally stable nonwoven fibrous webs|
|US8858986||Jun 11, 2009||Oct 14, 2014||3M Innovative Properties Company||Biocompatible hydrophilic compositions|
|US9194065||Dec 17, 2010||Nov 24, 2015||3M Innovative Properties Company||Dimensionally stable nonwoven fibrous webs and methods of making and using the same|
|US9248048||Jan 6, 2012||Feb 2, 2016||Neodyne Biosciences, Inc.||Wound or skin treatment devices and methods|
|US9248049||Apr 18, 2011||Feb 2, 2016||The Board Of Trustees Of The Leland Stanford Junior University||Skin treatment devices and methods with pre-stressed configurations|
|US9248051||Mar 7, 2013||Feb 2, 2016||The Board Of Trustees Of The Leland Stanford Junior University||Skin treatment devices and methods with pre-stressed configurations|
|US20020104608 *||May 14, 2001||Aug 8, 2002||Welch Howard M.||Method and apparatus for producing laminated articles|
|US20030026967 *||May 2, 2001||Feb 6, 2003||Joseph Eugene G.||Pressure sensitive adhesive fibers with a reinforcing material|
|US20030104746 *||Oct 29, 2002||Jun 5, 2003||3M Innovative Properties Company||Laminated composites|
|US20030109842 *||Dec 12, 2001||Jun 12, 2003||Louis Raymond Gerard St.||Separated targeted elastic zone for improved process and product function|
|US20030114824 *||Dec 19, 2001||Jun 19, 2003||Odorzynski Thomas W.||Three dimensional profiling of an elastic hot melt pressure sensitive adhesive to provide areas of differential tension|
|US20030124331 *||Dec 28, 2001||Jul 3, 2003||Charles Morell||Elastic strand bonded laminate|
|US20040005834 *||Jul 2, 2002||Jan 8, 2004||Peiguang Zhou||Elastomeric adhesive|
|US20040005835 *||Dec 26, 2002||Jan 8, 2004||Peiguang Zhou||Elastic strand laminate|
|US20040006324 *||Dec 26, 2002||Jan 8, 2004||Peiguang Zhou||Garment including an elastomeric composite laminate|
|US20040019343 *||May 14, 2001||Jan 29, 2004||Olson Christopher Peter||Garment having an apparent elastic band|
|US20040116023 *||Dec 17, 2002||Jun 17, 2004||Lei Huang||Thermal wrap with elastic properties|
|US20040121683 *||Dec 20, 2002||Jun 24, 2004||Joy Jordan||Composite elastic material|
|US20040192140 *||Mar 26, 2003||Sep 30, 2004||The Procter & Gamble Company||Elastomeric nonwoven laminates and process for producing same|
|US20040214498 *||Oct 23, 2003||Oct 28, 2004||Webb Steven P.||Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics|
|US20040238105 *||Jun 2, 2003||Dec 2, 2004||The Procter & Gamble Company||Method and apparatus for producing elastomeric nonwoven laminates|
|US20050025937 *||Jul 31, 2003||Feb 3, 2005||3M Innovative Properties Company||Tearable elastic composite article and method of manufacture|
|US20050055001 *||Sep 2, 2004||Mar 10, 2005||Cazzato Tim Richard||Disposable absorbent underpants|
|US20050055005 *||Aug 19, 2004||Mar 10, 2005||Cazzato Tim Richard||Disposable absorbent underpants|
|US20050058816 *||Mar 25, 2004||Mar 17, 2005||Gorres Geoffrey H.||Camouflage self-adherent wrap|
|US20050084647 *||Oct 12, 2004||Apr 21, 2005||3M Innovative Properties Company||Laminated composites|
|US20050101739 *||Jul 8, 2004||May 12, 2005||Webb Steven P.||Fibers made from block copolymer|
|US20050142339 *||Dec 30, 2003||Jun 30, 2005||Price Cindy L.||Reinforced elastic laminate|
|US20050241773 *||Apr 30, 2004||Nov 3, 2005||The Procter & Gamble Company||Apparatus for producing elastomeric nonwoven laminates|
|US20060009104 *||Sep 13, 2005||Jan 12, 2006||Uwe Schneider||Elastomeric nonwoven laminates and process for producing same|
|US20060035055 *||Aug 10, 2004||Feb 16, 2006||The Procter & Gamble Company||Elastomeric nonwoven laminates and process for producing same|
|US20060082012 *||Dec 6, 2005||Apr 20, 2006||Bba Nonwovens Simpsonville||Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics|
|US20060084339 *||Dec 6, 2005||Apr 20, 2006||BBA Nonwovens Simpsonville,||Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics|
|US20060084342 *||Dec 6, 2005||Apr 20, 2006||BBA Nonwovens Simpsonville,||Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics|
|US20060121097 *||Nov 12, 2005||Jun 8, 2006||Lodge Richard W||Treatment articles capable of conforming to an underlying shape|
|US20060175001 *||Mar 17, 2006||Aug 10, 2006||Uwe Schneider||Method and apparatus for producing elastomeric nonwoven laminates|
|US20060228969 *||Apr 7, 2005||Oct 12, 2006||Erdman Edward P||Elastic laminate|
|US20060229544 *||Apr 5, 2006||Oct 12, 2006||3M Innovative Properties Company||Compression bandage system|
|US20070039681 *||Oct 30, 2006||Feb 22, 2007||3M Innovative Properties Company||Tearable elastic composite article and method of manufacture|
|US20070082569 *||Sep 10, 2004||Apr 12, 2007||Gorres Geoffrey H||Modified self-adherent wrap|
|US20070193678 *||Apr 17, 2007||Aug 23, 2007||Uwe Schneider||Apparatus for producing elastomeric nonwoven laminates|
|US20070299383 *||Jun 1, 2007||Dec 27, 2007||Andover Coated Products, Inc.||Foam layer cohesive articles and wound care bandages and methods of making and using same|
|US20080014386 *||Jun 1, 2007||Jan 17, 2008||Andover Healthcare, Inc.||Cohesive articles with a foam layer|
|US20080014387 *||Jun 1, 2007||Jan 17, 2008||Andover Healthcare, Inc.||Foam layer cohesive articles and wound care bandages and methods of making and using same|
|US20080033334 *||Aug 3, 2007||Feb 7, 2008||Gurtner Geoffrey C||Devices and bandages for the treatment or prevention of scars and/or keloids and methods and kits therefor|
|US20080078029 *||Oct 2, 2006||Apr 3, 2008||Louisville Bedding Company, Inc.||Mattress cover with fit enhancing composite end panels|
|US20080202665 *||May 9, 2008||Aug 28, 2008||Louisville Bedding Company, Inc||Method of imparting mattress gripping stretchability to a mattress cover|
|US20080210364 *||May 20, 2008||Sep 4, 2008||Uwe Schneider||Apparatus for Producing Elastomeric Nonwoven Laminates|
|US20080311338 *||Nov 30, 2005||Dec 18, 2008||3M Innovative Properties Company||Extensible Side Panel|
|US20090075042 *||Nov 30, 2007||Mar 19, 2009||Andover Healthcare, Inc.||Hand-tearable non-elastic tape|
|US20090131845 *||Jan 22, 2009||May 21, 2009||Gurtner Geoffrey C||Methods for the treatment or prevention or scars and/or keloids|
|US20090131846 *||Jan 22, 2009||May 21, 2009||Gurtner Geoffrey C||Treatment or prevention of scars and/or keloids|
|US20090163844 *||Jan 22, 2009||Jun 25, 2009||Gurtner Geoffrey C||Methods for the treatment or prevention of scars and/or keloids|
|US20100163162 *||Mar 8, 2010||Jul 1, 2010||Uwe Schneider||Apparatus for Producing Elastomeric Nonwoven Laminates|
|US20110030883 *||Aug 27, 2010||Feb 10, 2011||Uwe Schneider||Elastomeric Nonwoven Laminates and Process for Producing Same|
|US20110067797 *||Nov 24, 2010||Mar 24, 2011||Uwe Schneider||Apparatus for Producing Elastomeric Nonwoven Laminates|
|US20110071453 *||Mar 24, 2011||3M Innovative Property Company||Compression bandage system|
|US20110146694 *||Dec 17, 2008||Jun 23, 2011||Michael Fischer||Patient extremity drape|
|US20110151737 *||Jun 23, 2011||3M Innovative Properties Company||Dimensionally stable nonwoven fibrous webs and methods of making and using the same|
|US20110151738 *||Dec 17, 2010||Jun 23, 2011||3M Innovative Properties Company||Dimensionally stable nonwoven fibrous webs, melt blown fine fibers, and methods of making and using the same|
|US20110152738 *||Aug 11, 2010||Jun 23, 2011||Neodyne Biosciences, Inc.||Devices and methods for dressing applicators|
|US20110189463 *||Jun 11, 2009||Aug 4, 2011||Moore Eric M||Melt blown fine fibers and methods of manufacture|
|US20110232822 *||Sep 29, 2011||The Procter & Gamble Company||Apparatus for Producing Elastomeric Nonwoven Laminates|
|DE102005016246A1 *||Apr 8, 2005||Oct 12, 2006||Sandler Ag||Elastic, liquid-impermeable but gas-permeable, composite non-woven, useful e.g. in personal hygiene articles, comprises polypropylene fiber material penetrated by elastic layer of propylene-ethylene copolymer|
|DE102005016246B4 *||Apr 8, 2005||Dec 31, 2009||Sandler Ag||Elastischer Verbundvliesstoff und Verfahren zu dessen Herstellung|
|EP0330716A2 *||Mar 2, 1988||Sep 6, 1989||Ipf Interpatent + Franchise Aktiengesellschaft||Heat-shirring sheet structure and method and apparatus for its manufacture|
|EP2275062A2||Apr 5, 2006||Jan 19, 2011||3M Innovative Properties Company||Compression bandage system|
|EP2292198A2||Apr 5, 2006||Mar 9, 2011||3M Innovative Properties Company||Compression bandage system|
|EP2322124A1||Apr 5, 2006||May 18, 2011||3M Innovative Properties Company||Compression bandage system|
|WO1994024353A1 *||Apr 21, 1994||Oct 27, 1994||E.I. Du Pont De Nemours And Company||Bulky, stable nonwoven fabric|
|WO1995006449A1 *||Aug 31, 1994||Mar 9, 1995||Minnesota Mining And Manufacturing Company||Perforated roll of elastic wrap|
|WO1995015136A1 *||Nov 4, 1994||Jun 8, 1995||Minnesota Mining And Manufacturing Company||Process for applying a foamed coating to a medical adhesive tape|
|WO1997004154A1 *||May 24, 1996||Feb 6, 1997||Andover Coated Products Inc.||Elastic bandage|
|WO2012051479A1||Oct 14, 2011||Apr 19, 2012||3M Innovative Properties Company||Dimensionally stable nonwoven fibrous webs, and methods of making and using the same|
|WO2012158879A1||May 17, 2012||Nov 22, 2012||3M Innovative Properties Company||Tearable elastic composite articles|
|WO2015002786A1||Jun 25, 2014||Jan 8, 2015||3M Innovative Properties Company||Antimicrobial foams and methods of making same|
|WO2015094792A1||Dec 9, 2014||Jun 25, 2015||3M Innovative Properties Company||Viscoelastic medical article|
|U.S. Classification||442/329, 442/366, 602/77, 602/76, 428/465, 442/394|
|International Classification||B29C67/00, A61F13/02, B32B37/14|
|Cooperative Classification||A61F13/0273, B32B37/144, B32B2305/20, B29C67/0011|
|European Classification||B29C67/00D, A61F13/02H, B32B37/14B|