138929results about "Thin material handling" patented technology

Ink refill systems are disclosed. In general, an ink source comprising a saturated zone and a tubarc porous microstructure for conducting ink from the saturated zone to an unsaturated zone are provided. The ink can be delivered from the saturated zone to the unsaturated zone through the tubarc porous microstructure, thereby permitting the ink to be harnessed for ink writing and / or printing through the unsaturated hydrodynamic flow of the ink from one zone of saturation or unsaturation to another.

The dissolution of dissolvable components in plural component polymer fibers is achieved by providing a polymer fiber including at least two sections, where at least one fiber section includes a dissolvable component. The rate at which at least part of the fiber dissolves is controlled by at least one of a fiber section having a non-round cross-sectional geometry, and at least two fiber sections including two different dissolvable components. In an exemplary embodiment, island-in-the-sea fibers are formed with non-round and elongated cross-sectional geometries. In another embodiment, sheath-core fibers are formed in which the sheath and core include different dissolvable components.

The present disclosure relates to compositions comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamideo-2-methyl-1-propane sulfonic acid. The present disclosure further relates to methods for preparing the copolymer compositions and shaped articles comprising the copolymers.

The invention relates to sutures and surgical staples useful in anastomoses. Various aspects of the invention include wound closure devices that use amphiphilic copolymer or parylene coatings to control the release rate of an agent, such as a drug or a biological material, polymerizing a solution containing monomers and the agent to form a coating, using multiple cycles of swelling a polymer with a solvent-agent solution to increase loading, microparticles carrying the agent, biodegradable surgical articles with amphiphilic copolymer coatings, and sutures or surgical staples the deliver a drug selected from the group consisting of triazolopyrimidine, paclitaxol, sirolimus, derivatives thereof, and analogs thereof to a wound site.

A fibrous web having a first surface and a second surface. The fibrous web has a first region and at least one discrete second region, the second region being a discontinuity on the second surface and being a tuft comprising a plurality of tufted fibers extending from the first surface. The tufted fibers define a distal portion, the distal portion comprising portions of the tufted fibers being bonded together. Bonding can be thermal melt-bonding. In another embodiment the second surface of the web can have non-intersecting or substantially continuous bonded regions, which also can be thermal melt-bonding.

A process for making a unitary fibrous structure comprises steps of: providing a fibrous web comprising a plurality of cellulosic fibers randomly distributed throughout the fibrous web and a plurality of synthetic fibers randomly distributed throughout the fibrous web; and causing co-joining of at least a portion of the synthetic fibers with the cellulosic fibers and the synthetic fibers, wherein the co-joining occurs in areas having a non-random and repeating pattern. A unitary fibrous structure comprises a plurality of cellulosic fibers randomly distributed throughout the fibrous structure, and a plurality of synthetic fibers distributed throughout the fibrous structure in a non-random repeating pattern. In another embodiment, a unitary fibrous structure comprises a plurality of cellulosic fibers randomly distributed throughout the fibrous structure, and a plurality of synthetic fibers randomly distributed throughout the fibrous structure, wherein at least a portion of the plurality of synthetic fibers comprises co-joined fibers, which are co-joined with the synthetic fibers and / or with the cellulosic fibers.

The present invention relates to soft surface coatings and absorbent articles comprising composite materials that are functionalized nanoparticles and in particular, metal-loaded nanoclays. In one embodiment, the metal is silver and the nanoparticle comprises a nanoclay. Silver ion is reduced to its neutral metal state (Ag0) and loaded onto the nanoclay.

The present invention provides novel microfluidic substrates and methods that are useful for performing biological, chemical and diagnostic assays. The substrates can include a plurality of electrically addressable, channel bearing fluidic modules integrally arranged such that a continuous channel is provided for flow of immiscible fluids.

A reflective element assembly for a variable reflectance vehicular mirror includes a front substrate having a transparent conductive coating disposed on a second surface, and a rear substrate having a third surface conductive coating disposed on its third surface and preferably, a fourth surface conductive coating disposed on its fourth surface. At least a portion of the third surface conductive coating may wrap around an edge portion of the rear substrate and at least a portion of the fourth surface conductive coating may wrap around at least a second portion of the perimeter edge so as to establish electrical continuity between the fourth surface conductive coating on the fourth surface and the third surface conductive coating on the third surface. The rear substrate may have a smaller dimension than the front substrate so as to provide an overhang region, preferably at the wraparound region.

The invention relates to a fiber strand (10) for an implantable supporting body (100) comprising at least two individual fibers (12). The at least two individual fibers (12) are each shorter in their longitudinal extent than the longitudinal extent (14) of the fiber strand, and in their transverse extent they are each thinner than the transverse extent (16) of the fiber strand.

The present invention provides a preparing method of carbon nanotube film structure, including following steps: providing a carbon nanotube array; adopting a pulling tool to acquire at least two carbon nanotube films from the carbon nanotube array; providing a fixed frame, forming a multiple-layer carbon nanotube film structure by overlap adhereing the carbon nanotube film in the fixed frame; and treating the multiple-layer carbon nanotube film by an organic solvent. The carbon nanotube film structure prepared by the method includes at least two layers overlapped and cross-over installed carbon nanotube film, which includes multiple carbon nanotube bundle end to end and arranged in the direction, the multiple-layer carbon nanotube film further includes millipore crosswise formed by multiple carbon nanotube bundles.

A hydraulic circuit may include a proportional control solenoid valve controlling hydraulic pressure such that an operating hydraulic pressure required by the friction member is supplied to the friction member; a supply hydraulic path connecting the proportional control solenoid valve with the friction member, and adapted to supply hydraulic pressure controlled by the proportional control solenoid valve to the friction member; and a switch valve disposed in the supply hydraulic path so as to selectively open / close the supply hydraulic path.

Coating compositions, methods and articles of manufacture comprising a nanoparticle system employing same to impart surface modifying benefits for all types of soft surfaces, and in some cases, hard surfaces, are disclosed. In some embodiments, dispersement of nanoparticles in a suitable carrier medium allows for the creation of coating compositions, methods and articles of manufacture that create multi-use benefits to the modified surfaces. These surface modifications can produce long lasting or semi-permanent multi-use benefits that, in some embodiments, may include at least one of the following improved surface properties: cleaning, wettability, liquid strike-through, comfort, stain resistance, soil removal, malodor control, modification of surface friction, reduced damage to abrasion and color enhancement, relative to the surfaces unmodified with such nanoparticle systems.

Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described.

This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.

A seal assembly adapted for use in conjunction with a trocar assembly includes a plurality of seal segments, each seal segment including a peripheral edge and a seam edge. Each seal segment further includes a first section and a second section with a vertical wall connecting the first section and the second section in such a way that the first section is displaced relative to the second section such that the first section of a first seal segment may be placed upon the second section of a second seal segment with the first sections of the first and second seal segments lying in the same plane and the second sections of the first and second seal segments lying in the same plane. The seal segments are assembled in an overlapping woven arrangement to provide a complete seal body without the need for a secondary seal.

The invention provides particle compositions having applications in nucleic acid analysis. Nucleic acid polymer particles of the invention allow polynucleotides to be attached throughout their volumes for higher loading capacities than those achievable solely with surface attachment. In one aspect, nucleic acid polymer particles of the invention comprise polyacrylamide particles with uniform size distributions having low coefficients of variations, which result in reduced particle-to-particle variation in analytical assays. Such particle compositions are used in various amplification reactions to make amplicon libraries from nucleic acid fragment libraries.