Abstract: A storage/dispensing assembly, e.g., a roll or stack, of non-woven pressure sensitive adhesive tape comprising one or more multilayer sheets of pressure sensitive adhesive tape arranged such that the adhesive layer in the assembly of an overlying non-woven pressure sensitive adhesive tape is in direct contact with the underlying nonwoven backing layer of non-woven pressure sensitive adhesive tape. The non-woven backing layer is formed at least in part of fibers having a denier of greater than 15 so as to decrease the level of fibers disengagement when an overlying nonwoven pressure sensitive adhesive tape is removed from the assembly.

Abstract: A high efficiency filtration medium comprised of a nonwoven filter web of electret charged fibers of a nonconductive thermoplastic resin having a resistivity greater than 10.sup.14 ohm-cm, preferably polypropylene. The nonwoven filter web has a basis weight (BW) of less than 60 grams/m.sup.2, an effective fiber diameter (EFD) of less than 5 microns and a penetration (PEN) of less than 0.03%, wherein the ratio);BW/(EFD.PEN)is greater than 200. The invention filter medium can be easily used in applications requiring HEPA performance at relatively low pressure drops.

Abstract: There is provided pressure-sensitive adhesive coated breathable nonwoven tape backing substrate where the nonwoven tape backing comprises a fibrous nonwoven web formed in part by multicomponent fibers having an adhesive component region. The multicomponent fibers are distributed throughout the width dimension of the nonwoven tape backing such that adhesive component region is exposed on both outer faces of the nonwoven tape backing. The adhesive component region is preferably a pressure-sensitive adhesive region formed by hot melt coextrusion of at least two components to form the multicomponent fibers.

Abstract: The present invention provides repositionable sheets having a backing and a layer of a nonwoven web thereon. The nonwoven web is prepared from fibers, which can be multilayer fibers, that include a pressure-sensitive adhesive composition.

Abstract: An ophthalmic surgical drape and a method of applying the drape to a patient. The ophthalmic surgical drape is made from a sheet having an aperture in the interior of the sheet, and at least two tear lines in the sheet extending from the aperture. The drape also has a field of skin compatible adhesive adjacent the aperture, with the field being traversed by the tear lines so as to divide the field into at least two portions. The drape may be provided in a folded condition in which tearing can be accomplished so as to divide the drape into two sections before the drape is unfolded. Also disclosed are two tear lines disposed along an oblique angle, and a method of applying the drape.

Abstract: A highly moisture vapor transmissive adhesive composite is disclosed comprising at least three layers, a polymeric backing layer, a high moisture vapor transmission layer, and a skin contacting adhesive layer. The high moisture vapor transmission layer may be made from a polymeric backing material, an adhesive material or both.

Abstract: There is provided an air delivery device and method of moving and filtering air. The air delivery device comprises a housing having an air inlet and an air outlet. Between the air inlet and the air outlet is located an air delivery fan having at least two rotating air moving elements, the rotating air moving elements intersects the flow of air between the air inlet and the air outlet and establishes a higher pressure zone at the air outlet relative to the air inlet. The air delivery fan further comprises at lest one filter element, having at least one upstream filter face and at least one downstream filter face, defining at least one primary flow channel, and rotating along the same axis of rotation as the air moving elements and preferably forming the air moving elements at least in part.

Abstract: There is provided a moving sorbent filter within an air delivery device. The air delivery device has a housing having an air inlet and an air outlet, between the air inlet and the air outlet is located an air delivery fan having at least two rotating air moving means. The rotating air moving means intersect the flow of air between the air inlet and the air outlet and establish a higher pressure zone at the air outlet relative to the air inlet. The air delivery fan further comprising a moving porous sorbent filter formed of at least one sorbent filter element. The sorbent filter has at least one air passage allowing substantially unimpeded airflow into and through the sorbent filter.

Abstract: A filtration system that rotates in conjunction with a blower wheel, and a method of attaching the same. The blower wheel typically has a plurality of fan blades arranged in a spaced relationship radially around a blower cavity to define a flow path extending radially outward from the blower cavity through the fan blades when the blower wheel is rotating. The filtration system includes a filter cartridge releasably attachable to the blower wheel in an engaged configuration. The filter cartridge includes a filter medium defining a generally center opening and a filter surface configured to be positioned generally adjacent to the fan blades and to extend across at least a portion of the flow path. In one embodiment, a plurality of flow passages extending through the filter medium.

Abstract: There is provided a cellulosic-based fiber granule with added non self-associating particulates or fibers. The resulting granule is free-flowing with a densified outer surface and is capable of removing substantially all oil or other fluids from a flat surface such as a floor. The granule is also capable of being incinerated by being formed substantially of organic materials. Cellulosic plant fibers form at least 10 percent up to 99 percent of the granule. There is also provided a method for forming the incineratable absorbent, free-flowing granules.

Abstract: A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Cs ions from aqueous solutions.

Abstract: The present invention provides fibers and products produced therefrom, including nonwoven webs and adhesive articles. The fibers, which can be multilayer fibers, include a pressure-sensitive adhesive composition comprising an acrylate copolymer comprising copolymerized monomers comprising at least one monofunctional alkyl (meth)acrylate monomer and at least one monofunctional free-radically copolymerizable reinforcing monomer having a homopolymer glass transition temperature higher than that of the alkyl (meth)acrylate monomer.

Abstract: An ophthalmic drape that can easily be adhered to both the upper and lower margins of the eye without requiring the use of separate instruments for cutting and adjusting. The drape includes a sheet of material with an aperture positioned away from the periphery of the sheet. The drape has two fields of skin compatible adhesive, one on one side of the sheet near the aperture, the other on the other side of the sheet near the periphery. Once the first field of skin compatible adhesive has been adhered to one of the patient's eyelids, the section of the drape supporting the second field of skin compatible adhesive can be folded upwards and doubled back on the drape. The second field of skin compatible adhesive, which had been side away from the patient before folding, is turned side towards the patient after folding. The second field of skin compatible adhesive is then conveniently positioned to be adhered to the remaining eyelid of the patient.

Abstract: A prelaminated composite tape in a stable roll from which a composite adhesive closure tape tab (20) for disposable articles can be cut, which comprises a support sheet (21) and a mechanical fastener (30), wherein the support sheet (21) has a fastening surface (22) with a bonding layer (24) and a back side surface (23) that is provided with means for increasing the static friction, whereby a first axial extending section (25) of the support sheet (21) has a patch (26) comprising a mechanical fastener (30) disposed on the bonding layer (24), and a second axial extending section (31) of the support sheet has an exposed bonding layer which is attached to the edge portion (14) of the disposable article (10) in the production process.

Abstract: A pharmaceutical suspension formulation suitable for aerosol administration having from 0.0025 to 0.1% w/w of micronized Formoterol, or an acid addition salt thereof, from 0.1 to 5.0% w/w ethanol, HFA 134a, HFA 227 or a mixture of HFA 227 and HFA 134a, and optionally a surfactant other than a monoacetylated or diacetylated monoglyceride, the formulation being further characterized in that it exhibits substantially no growth in particle size or change in crystal morphology of the drug over a prolonged period, is substantially and readily redispersible, and upon redispersion does not flocculate so quickly as to prevent reproducible dosing of the drug.

Abstract: A method and apparatus for capping a headed stem fasteners. The precursor web having a backing with a rear surface, a front surface, and a multiplicity of polymeric stems projecting distally from the front surface of the backing is fed into a variable nip between a heated member opposite a support surface. The support surface has a shape generally conforming to the contour of the heated member. The variable nip compressively engages the polymeric stems between the heated member and the support surface so that distal ends of the polymeric stems are deformed. The heated member can be a heated roll or a heated belt. The support surface may be a curved capping shoe or a belt shaped to create a particular nip profile.

Abstract: Group IV organometallic compounds, e.g. alkylsilane, or alkylsiloxane compounds, are used as chain transfer agent in the radical initiated polymerization of ethylenically unsaturated monomers, to give polymers comprising non-ionic end groups.

Abstract: A method for isolating an environmentally hazardous organic contaminant from a fluid utilizes a solid phase extraction medium comprises a PTFE fibril matrix, and sorptive particles enmeshed in said matrix comprising more than 30 and up to 100 weight percent of porous organic particles, and less than 70 to 0 weight percent of porous (organic-coated or uncoated) inorganic particles, the ratio of sorptive particles to PTFE being in the range of 40:1 to 1:4 by weight. The extraction medium is useful in pesticide, phenolics, and residue of explosives separations. The separations can be efficiently performed in a stacked disk format.