Abstract: Process and apparatus for on-line determination and control of the Flow Behavior Index of a molten polymer stream are disclosed along with methods for using the Index as a means for monitoring and controlling polymer quality. In particular, the Index may be used to monitor and control on-line the levels of branching in the polymer and the polymer's molecular weight distribution.

Abstract: An ultracentrifuge rotor is characterized by a hub having radially outwardly extending curved spokes. The outer ends of the spokes are received in a groove defined on the inner peripheral surface of an annular rim. Sample carriers are affixed to the rim at circumferentially spaced locations defined between adjacent pairs of spokes. As the rotor rotates the disparity in physical properties between the hub and the rim as well as the flattening of the curvature of the spokes causes the hub to grow to an extent at least equal to that of the growth of the rim.

Abstract: A cold-water-swellable granular starch which affords aqueous solutions or dispersions having high-viscosity and/or excellent clarity is provided. In one embodiment, the granular starch is made cold-water swellable by contact with aqueous alcohol, then derivatized with an .alpha.-halocarboxylic acid, and then isolated under condition which inhibit esterification of the granular starch, e.g. high pH, to afford a starch that has excellent paste clarity. In other embodiments, the cold-water-swellable granular starch is crosslinked to afford a starch that has very high paste viscosity.

Abstract: A football fabricated of a specific injection molded thermoplastic polyester elastomer is described. A tethered football practice kicking aid, comprised of a tether, stakes and the described football with holes therein through which the tether is passed is also described. The injection molded thermoplastic polyester elastomer has a flexural modulus of 117 MPa [17,000 psi], a nominal durometer hardness of 470, a melt flow rate of 5.5 g/min., a melting point at peak of endotherm of 208.degree. C. and at the extrapolated end point of 225.degree. C., a compression set after 22 hours at 70.degree. C. [158.degree. F.] 2.8 MPa [400 psi] load of 2 and a specific gravity of 2.

Abstract: Apparatus for sampling potentially hazardous solid materials is provided. The apparatus includes sampler head mounted on a handle having an interior bore with a connector for connecting the interior bore to a source of vacuum. The sampler head of the apparatus of the invention includes a collector having a funnel-shaped wall which diverges away from the handle from a minor opening to a major opening. A separator plate is provided having an exterior surface oriented in the direction of divergence of the funnel-shaped wall and with an interior surface in communication with the interior bore of the handle. A cutter holder is mounted on the separator plate and extends into the collector with the cutter holder being generally centered with respect to the minor opening of the collector and the funnel-shaped wall. The apparatus further includes an elongate, removable cutter sleeve which is attachable at an attachment end to the cutter holder.

Abstract: A hermetically sealed combination ceramic and metal package for electronic components of an electronic device implantable in a living body, at least some of the components being adversely affected by high temperatures. The package comprises a ceramic sleeve and a metal band having substantially the same coefficients of linear thermal expansion. An annular end face of the sleeve butts against and hermetically seals to an annular end of the metal band. A header plate carrying a substrate upon which the components are mounted and a plurality of electrical connectors closes the open end of the sleeve and is hermetically sealed to the metal band.

Abstract: A composition stabilized against thermal crosslinking and consequent reduction of its melt index, consisting essentially of a uniform dispersion of alumina-coated titanium dioxide pigment in a blend of a matrix polymer which is a dipolymer of ethylene with an ethylenically unsaturated carboxylic acid or a terpolymer of ethylene with an ethylenically unsaturated carboxylic acid and with another ethylenically unsaturated comonomer, or with carbon dioxide or sulfur dioxide, with a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such compositions are useful in melt-fabricating white-pigmented articles such as, e.g., toothpaste tubes and condiment pouches.

Abstract: Carbon fibers having balanced properties comprising an ultra-high modulus greater than 100 Mpsi and a high tensile strength of greater than 500 kpsi. The carbon fibers are derived from a solvent fractionated pitch having a mesophase content of greater than 90% by weight and a quinoline insolubles content of less than 1% by weight. A crude pitch feed is sequentially heat soaked, solvent fractionated, and extruded to form as-spun fibers. The latter are stabilized or infusibilized and then carbonized by multistage heat treatments involving separate precarbonization, carbonization, and graphitization steps with an intermediate cooling step.

Abstract: This invention relates to a process for the hydrogenation of halogenated aromatic nitro compounds to the corresponding halogenated amines using a platinum catalyst in the presence of certain aminoalkyl ethers or alkanolamines. It relates in addition to halogenated aromatic amines containing an amount of such aminoalkyl ether or alkanolamine effective to stabilize said halogenated aromatic amine. The storage stabilizers and dehalogenation inhibitors contain a total of 2 to 6 carbon atoms and can be represented by the formula:R.sup.1 --(R.sup.2)--N--(CH.sub.2).sub.n --O--R.sup.3wherein R.sup.1 and R.sup.2 may be the same or different --H or --CH.sub.2 CH.sub.2 OH, n is an integer from 2 to 3, and R.sup.3 is either --H or --CH.sub.3.

Abstract: A process for halogen exchange fluorination by contacting a halocarbon having a replaceable halogen other than fluorine with KF.nHF wherein n is 0.5-3 to provide a fluorinated hydrocarbon having at least one more fluorine than the starting halocarbon and, optionally, regenerating the KF.nHF with additional HF, or in a continuous process, with excess HF in the feed.

Abstract: A system for stabilization of the coupling value between the transmitted radio signals resulting from cross polar discrimination, using the transmit power level control in radio link systems formed of several radio channels using multilevel QAM modulation. A first control signal is derived for each RF channel and a second control signal is derived for the adjacent channels. The first and second control signal are then combined to derive threshold signals. The threshold signals are multiplexed with station identification signals and this multiplexed signal is multiplexed with other service signals. The twice multiplexed signal is then inserted in the frame of a main information signal. The signal is demultiplexed to derive a remote transmit power control signal. The atmospheric precipitation condition is evaluated through statistical control of the bit error rate. A local transmit power control signal is derived.

Abstract: In a knife for a cutting tool with a pivotally oscillating drive, in particular for severing joint seals or insulations on glass panes, with the knife comprising a holding part for attachment to a drive shaft and a blade part, in order to make replacement more economical when the knife is worn, it is proposed that the blade part be exchangeably attached to the holding part.

Abstract: Described is a process for preparing a racemic or chiral aryloxypropanolamine (1) or arylethanolamine (2) of the formula ##STR1## wherein Ar is aryl, substituted aryl, heteroaryl, or aralkyl and R is alkyl, substituted alkyl, aralkyl, or WB wherein W is a straight or branched chain alkylene of from 1 to about 6 carbon atoms and wherein B is --NR.sub.2 COR.sub.3, --NR.sub.2 CONR.sub.3 R.sub.4, --NR.sub.2 SO.sub.2 R.sub.3, --NR.sub.2 SO.sub.2 NR.sub.3 R.sub.4, or --NR.sub.2 COOR.sub.5, where R.sub.2, R.sub.3, R.sub.4, and R.sub.5 may be the same or different and may be hydrogen, alkyl, alkoxyalkyl, alkoxyaryl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, or aralkyl, except that R.sub.3 and R.sub.5 are not hydrogen when B is --NR.sub.2 SO.sub.2 R.sub.3 or --NR.sub.3 COOR.sub.5, or R.sub.3 and R.sub.4 may together with N form a 5- to 7-membered heterocyclic group.The process can be used to prepare beta-blocking agents, useful in the treatment of cardiac conditions.

Abstract: Method of making tablets for active ingredient delivery by compressing a mixture of active ingredient and granular, high viscosity, fully hydrolyzed polyvinyl alcohol or copolymer of vinyl alcohol with methyl acrylate or methyl methacrylate. By use of a crystalline, heat treated polymer, a tablet providing quick active ingredient release is obtained. By using an amorphous, non-heat treated polymer a tablet providing prolonged active ingredient release is obtained. By using blends of crystalline and amorphous polymers, tablets having a range of active ingredient release characteristics can be obtained. The granular, high viscosity, fully hydrolyzed polymers provide flowability, compressibility and processing versatility advantages over conventional tablet binders.

Abstract: A process for halogen exchange fluorination by contacting a halocarbon having a replaceable halogen other than fluorine with CsF or RbF.multidot.nHF wherein n is 0.5-3 to provide a fluorinated hydrocarbon having at least one more fluorine than the starting halocarbon and, optionally, regenerating the MF.multidot.nHF with additional HF, or in a continuous process, with excess HF in the feed.

Abstract: A sensing-measuring device for the continuous determination of cavitation in dynamic pumps, consisting of an optical probe mounted in proximity to the suction nozzle of the dynamic pump, said probe comprising a light emitter and an optical sensor which are positioned inclined at an angle to each other in such a manner as to perfectly center on the leading edge of the blades.

Abstract: Blends of a major portion of ethylene vinyl alcohol copolymer (EVOH) and a minor portion of an amorphous polyamide and preferably also a semicrystalline nylon are disclosed. These blends may be formed into films or multilayer structures, which can be thermoformed into containers or other articles. The presence of the minor portion of amorphous polyamide permits thermoforming of the EVOH at lower temperatures without the formation of defects.

Abstract: N-oxide prodrug derivatives of 3-hydroxy morphinan and partial morphinan analgesics, agonist-antogonists, and narcotic antagonists are useful therapeutic entities which provide enhanced bioavailability of 3-hydroxy morphinans and partial morphinans from orally administered dosage forms.