Abstract: A cell culture unit is disclosed herewith comprising a shell having two ends with an elongated chamber there between. A liquid and a gas perfusion port are located on each end. Liquid perfusion fibers are connected to the liquid perfusion ports and gas perfusion fibers are connected to the gas perfusion ports. These fibers thereby define an extracapillary and intracapillary space. The cell culture unit further comprises means for communicating with the intracapillary space of the gas perfusion fibers means for communicating with the intracapillary space of the liquid perfusion fibers, and means for communicating with the extracapillary space.

Abstract: A closure device for shrinkwraps comprising a high temperature-resistant, flame-resistant and dimensionally stable backing layer, a cross linked, high temperature-resistant, shear-resistant, and flame-resistant pressure sensitive adhesive applied to one surface of the backing layer; a heat-shrinkable film dimensionally smaller than the pressure sensitive adhesive layer positioned on the adhesive layer so as to maintain a peripheral area of exposed pressure sensitive adhesive; and an optional release liner applied so as to protect the exposed pressure sensitive adhesive layer from premature and unwanted contact prior to use.

Abstract: A dispenser for plurality of finger bandages comprising: (a) a release liner treated base sheet; (b) a plurality of individual wound dressings each comprising: (i) a backing; (ii) an adhesive layer on one surface thereof; (iii) a pad adapted for covering a wound disposed on the adhesive surface between opposed ends of the backing; (iv) a release liner covering one exposed adhesive surface and the pad, the other exposed adhesive surface is releasably attached to the release liner treated base sheets.

Abstract: Novel synthetic elastomer and/or natural rubber-based adhesive liquid coatings adapted for use as a primer coating for pipelines, which coatings include an amphipathic metal complexing reagent in an amount effective to provide protection against cathodic disbondment; and novel protective pipewrap systems including same.

Abstract: Novel duct tapes comprising a water-impermeable sheet backing carrying, in order, a cloth material and an adhesive layer, wherein the backing is embossed in order to lower the density and thereby render a duct tape of a given thickness more cost-effective.

Abstract: Novel adhesives for preparing metal foil adhesive tapes meeting Underwriter Laboratories requirements for use with rigid fiberglass air ducts, which adhesives comprise a self- (internally) crosslinked copolymer of: (1) from about 1.5 to about 2.5 parts by weight of at least one activated ester-containing vinyl monomer of Formula I (as defined hereinafter); (2) from about 11 to about 14 parts by weight of at least one ethylenically unsaturated carboxylic acid containing 3-5 carbon atoms; (3) from about 70 to about 80 parts by weight of at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1-14 carbon atoms; and (4) from about 6 to about 15 parts by weight of at least one vinyl ester of a saturated carboxylic acid.

Abstract: Novel processes for preparing a heat shrinkable film by first forming a polyolefinic film on a three-roll calender in which the second and third rolls rotate at about the same speed and the first roll rotates at a slower speed, the top roll is heated to a temperature above the melting point of the polyolefinic material, the middle roll is heated to an elevated temperature below its melting point, and the bottom roll is chilled relative thereto; thereafter subjecting one surface of the resulting film to irradiation from a low energy electron beam at a voltage such that the irradiation dose at the half-depth of the film is approximately one-half the dose at the irradiated surface and at a current to film surface speed ratio such that the surface dose would effect crosslinking sufficient to impart to said film a 100% modulus at 150.degree. C.

Abstract: A closure device for shrinkwraps comprising a high temperature-resistant, flame-resistant and dimensionally stable backing layer, a cross linked, high temperature-resistant, shear-resistant, and flame-resistant pressure sensitive adhesive applied to one surface of the backing layer; a heat-shrinkable film dimensionally smaller than the pressure sensitive adhesive layer positioned on the adhesive layer so as to maintain a peripheral area of exposed pressure sensitive adhesive; and an optional release liner applied so as to protect the exposed pressure sensitive adhesive layer from premature and unwanted contact prior to use.

Abstract: A blank for a roll of tape is disclosed which is constructed from a blank having a fold line so that it may be folded over and glued. Each side of the blank on either side of the fold line has a U-shaped aperture extending in the same direction. The two U-shaped apertures are positioned and dimensioned whereby they are in registry. The roll of tape is mounted on the folded blank in a manner that the portions between the U-shaped apertures are inserted each from opposite sides of the blank as it is folded whereby the portions are axially located with respect to the roll of tape.

Abstract: A process for making a model skin surface for testing adhesion of medical adhesive as a screening test and/or as an alternative to costly and highly variable human skin substrates including casting silicone rubber on human skin to produce a mold having human skin topography and pouring a water-swellable, water-soluble proteinaceous material along with a crosslinking agent and fatty acid constituent into the mold. The proteinaceous material crosslinks while in the mold and the water content of the material is adjustable to simulate varying moisture contents in human skin.

Abstract: Repulpable tapes, their composition and the process of making the same, which retain adhesion and tack over a wide range of humidity and temperature, are provided. The improved composition comprises the addition of 10 to 50 parts by weight of a partially to fully hydrogenated rosin and at least 1 part by weight of polyethylene glycol.

Abstract: Novel flame-retardant conformable adhesive tapes consisting essentially of: (1) a water-impermeable chlorinated polyethylene backing layer from about 1 to 3 mils thick; (2) an evenly tearable synthetic fiber cloth or scrim; (3) a flame-retardant adhesive layer, preferably a rubber-based adhesive; and (4) a thin tie coat layer between the backing and the scrim which, when applied as a molten mass, at least partially fills the interstices between the fibers of the scrim so as to provide surface contact with the underlying adhesive layer, the tie coat providing a strong bond at both the tie coat/backing interface and the tie coat/scrim and adhesive interfaces, thereby providing a laminar product possessing the desired anchorage and structural stability and integrity.The tape is particularly useful in wrapping irregular surfaces, e.g. as a wire harness wrap, where high conformability is essential to good adhesive contact.