Abstract: The present invention includes photocurable, liquid polymers incorporating coumarin ester endgroups into their molecular structure, which polymers are crosslinked upon irradiation with ultraviolet light by photochemically allowed [2+2] cycloaddition reactions among the chain ends, and which crosslinked polymers are useful in the preparation of medical devices, tissue engineering scaffolds, drug delivery systems and, in particular, in vivo preparation of implants in an open surgical procedure or laproscopically.

Abstract: An apparatus and method, for use in a satellite-based communications network, for minimizing blocking of communication between the network and access terminals resulting from differences in the signal propagation delays for the access terminals due to their different locations within a coverage area serviced by a spot beam generated by a satellite in the network. The apparatus includes a spot beam segregator which segregates a coverage area of the spot beam into at least one coverage zone based on the maximum and minimum propagation delay experienced by access terminals within the coverage area of the spot beam. The apparatus further includes a carrier grouper which groups the carrier into a number of groups corresponding to the number of offset zones, and assigns each carrier group to a respective one of the coverage zones.

Abstract: An apparatus for delivering fluids at a precisely controlled rate which includes a fluid dispensing component having a fluid reservoir for containing the fluids to be delivered and a reservoir fill component which can be removably interconnected with the fluid dispensing component. The reservoir fill assembly is uniquely designed to accept a vial component of conventional construction which is factory filled with the medicinal fluid to be delivered to the patient. The dispenser component embodies a highly novel fluid flow indicator that provides a readily discernible visual indication of fluid flow status through the device.

Abstract: An apparatus for visually indicating fluid flow through a fluid system or apparatus such as a medical infusion device. The apparatus comprises a pair of thin, indicia bearing films disposed in an overlaying relationship. These films are shifted relative to each other by movement of mechanical actuators which are deflected solely by the pressure of the fluid within the fluid conduits of the system of the apparatus. The two films are stacked in closed proximity and are preferably constructed from a substantially transparent flexible material such as mylar. One surface of the inferior film is printed with a plurality of integrated symbols depicting various fluid flow conditions. The superior film functions as a mask over the inferior film and is printed with a pattern of diagonally extending, alternating clear and opaque stripes. The print ratio of the superior film permits viewing at any one time of only one of the symbols printed on the inferior film.

Abstract: Steel anticorrosion and lubricity composition consisting essentially of (a) a surfactant; (b) at least one neutralized alkyl phosphate in a surfactant:phosphate weight ratio in the range between 10:1 to 1:10, said phosphate having the general formula:(RO).sub.m --P--(O)--(OH).sub.nwherein R is an alkyl group having 4 to 20 carbon atoms; m is 1 or 2, and n is 3m; and optionally (c) 5 to 40 weight percent, based on the combined weight of said surfactant and said phosphate, of at least one carboxylic acid which has both a hydrophilic and a hydrophobic portion.

Abstract: Poly(1,4-benzodioxepin-2,5-(3-H)dione), poly(1,4-benzodioxepin-2,5-(3-H, 3-methyl)dione), and copolymers of 1,4-benzodioxepin-2,5-(3-H)dione or 1,4-benzodioxepin-2,5-(3-H, 3-methyl)dione and at least one of: a) glycolide, b) (L-)lactide, c) an alkylene carbonate, d) p-dioxanone, e) e-caprolactone, f) 1,4-dioxepan-2-one, or g) 1,5-dioxepan-2-one.Surgical devices prepared from the polymers and copolymers.

Abstract: Yellow to orange, disazo acid dyes which have excellent application and fastness properties on nylon fibers, do not change shade under basic conditions and have the formula ##STR1## wherein SO.sub.3 M is meta or para to the azo group, R.sub.1 is selected from H, CH.sub.3, OCH.sub.3 and Cl, R.sub.2 and R.sub.3 are independently selected from H, CH.sub.3 and OCH.sub.3, R.sub.4 and R.sub.5 are independently selected from H, Cl and CH.sub.3, but only one can be Cl, R.sub.6 is selected from CH.sub.3 and C.sub.2 H.sub.5 and M is, C.sub.1-4 alkylammonium and C.sub.1-2 alkanolammonium cations.

Abstract: Storage-stable, concentrated, aqueous, disazo acid dye solution consisting essentially of 10-25 weight % of the lithium or tri(2-hydroxyethyl)ammonium salt of ##SPC1##Wherein one of X and Y is H and the other is CH.sub.3 and R.sup.1 is CH.sub.2 CH.sub.2 OH, CH.sub.2 CH(CH.sub.3)OH or CH.sub.2 CH(C.sub.2 H.sub.5)OH, 5-25 weight % of N-methyl-2-pyrrolidone and the balance, to 100%, water.