Abstract: A nonsilver photosensitive reproduction element for preparing negative tonable images which comprises a support bearing a layer of a photosensitive composition which comprises at least one thermoplastic binder, at least one thio compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are as defined, and at least one hexaarylbisimidazole compound as defined. Optionally plasticizers, stabilizers, etc. can be present in the photosensitive layer. The photosensitive element is useful in preparing negative tonable images.

Abstract: A polymer blend of(1) up to 40% by weight of a polymer of repeating units of -A- of hard acrylic segment and(2) at least 60% by weight of block polymer of the repeating units -A-B-A- wherein [A] is of a hard acrylic segment having a glass transition temperature of 25.degree. C. and above; and [B] is a segment of the formula ##STR1## where R is an alkylene group having 2-6 carbon atoms;R.sup.1 is aliphatic, cycloaliphatic or aromatic group;R.sup.2 is a polyester or a polyalkylene ether segment andn is from 0-10.The polymer is useful in coating compositions, in particular, coating compositions for flexible hydrocarbon rubber and polyvinyl chloride substrates used in automobiles and trucks.

Abstract: Film of a wholly aromatic polyamide, at least 85% of the repeating units of which are meta-phenylene isophthalamide units, which is undrawn and noncrystalline and which has improved impact strength. Such film is made by heat-treating film of the polyamide which is undrawn and noncrystalline at 400.degree. to 300.degree. C. for from 2 seconds to 2 minutes while maintaining the film at constant length and width or while permitting it to shrink by at most 20% in each of the length and width.

Abstract: A composite sheet structure of an aromatic polyamide fabric coated on both side with a 2-30 mil thick layer of a fluorosilicone rubber and having a dielectric constant of about 4-8 and a dissipation factor of about 0.015-0.030; the composite structure is useful as an insulating blanket that is used in a dielectric press to emboss laminates of thermoplastic polyurethane foam/short napped synthetic velour fabric used as upholstery for automobiles and trucks.

Abstract: A process of applying a yellowing resistant, durable antistatic soil release agent: ##STR1## wherein X is resin moiety having amino nitrogens and 4 to 6 methylenes, each methylene being attached to amino nitrogen and to the extent that any methylene groups are not attached they are attached to a --OCH.sub.3 group.Y.sub.1, Y.sub.2 or Y.sub.3 ;Y.sub.1 is O(C.sub.2 H.sub.4 O).sub.5-20 R.sub.1 ; R.sub.1 is C.sub.1-5 alkyl;Y.sub.2 is O(C.sub.2 H.sub.4 O).sub.5-88 R.sub.2 ; R.sub.2 is C.sub.6-20 alkyl;Y.sub.3 is ##STR2## R.sub.3 is C.sub.4-20 alkyl, C.sub.4-20 alkenyl or benzyl; R.sub.4 is C.sub.1-4 alkyl, A.sup..crclbar. is anion, each of m and n is at least 1 and their sum is 12 to 100;each of a and b is 0 to 2 and their sum is 0 to 2;c is 1 to 2;a plus b plus c is 1 to 4;said agent having HLB of 14.5 to 18.0, Brookfield viscosity (20 weight % aqueous solution viscosity at 20.degree. C.) of 0.250 to 16.000 pascal seconds, electrical resistivity (Keithley Log R) on polyester fabric (20.+-.2% RH, 23.+-.1.degree. C.

Abstract: A film processor having film transport rollers driven by a drive motor, a sensor for generating a signal representative of roller transport speed and a film density detector arrangement that includes a photodetector responsive to the intensity of a light source for generating a reference background level signal against which processed film is compared is characterized by a monitoring arrangement which periodically samples the photodetector output signal and adjusts a reference background level signal in accordance with fluctuations in the output of the scanner arrangement. To prevent the system from reacting to momentary perturbations in background level a moving weighted averaging technique is employed. The rate at which the reference background level signal is sampled is determined by the transport roller speed.

Abstract: A steroid formulation is provided which is preferably in the form of a lotion or cream and contains a steroid, such as halcinonide, a polyol vehicle therefor, such as polyethylene glycol, and dipotassium ethylenediaminetetraacetic acid which is soluble in the polyol vehicle and inhibits metal catalyzed degradation of the steroid.

Abstract: This invention relates to a centrifuge rotor of the swinging bucket type characterized in that the trunnion-receiving bores provided into the arms at the radial outward end thereof are arranged such that the axis of the bore provided into one surface of the arm lies above a horizontal plane through the arm and the axis of the bore provided on the other surface the arm lies below the arm and that the bores provided in confronting surfaces of adjacent arms lie on the same side of the horizontal plane.

Abstract: A frequency agile phase detector includes a digital frequency detector section connected to a hold-sample-hold phase detector section. The digital frequency detector develops control signals related to frequency differences between a reference periodic signal and a variable periodic signal. The control signal determines the amplitude of a voltage signal impressed across a first hold circuit. A sample signal acts to sample and transfer the sample voltage signal from the first to a second hold circuit so as to reduce phase differences between the reference and variable periodic signals. The detector is incorporated into a phase locked loop using the VCO output as the variable periodic signal so that acquisition and lockup of the loop is obtained even when the two periodic signals are decades apart. Additionally, the hold-sample-hold section aids in reducing the reference and sampling energy required which results in a spectrally pure output signal.

Abstract: The live roller conveyor includes multiple power transmission devices each mounted for movement between a retracted non-driving position and a position of driving relation between a friction drive wheel therein and at least one of the rollers. Each of the power transmission devices includes an assembly wherein the drive wheel and the driving sprocket therefor are rotationally mounted, and the main drive is a flexible drive chain, the driving run of which extends through the successive power transmission devices. A chain retaining member forming a part of each of the power transmission device assemblies holds the chain in driving engagement with the associated sprocket in all moved positions of the assembly, but has a separable connection with part of the associated assembly wherein the driving sprocket is supported in order to effect release of the sprocket from the chain.

Abstract: A mass memory for use with telecommunication equipment comprises a plurality of memory units associated with respective controllers. Each memory unit includes a command module, dialoguing with the associated controller, and a multiplicity of memory modules for the storage of respective information and redundancy bits of a number of data words, one bit of each word being written in an integrated charge-transfer circuit individually assigned thereto and being continuously recirculated when the memory unit is idle. The command module contains a corrective logic which includes a generator of redundancy bits and intervenes during reading and writing phases.

Abstract: A practice device for use in the practice of those sports involving the hurling or striking of a ball or other sport projectile toward a specified target. The device of the invention serves to safely arrest the flight of the projectile while informing the user of the exact point of impact of the projectile relative to a defined target zone. The target is a polymeric foam mat having a polymeric sheet bonded to its front face. The sheet removably carries target indicia. Apertures through the foam mat make up 40 to 50 percent of the total surface area of the mat. When a projectile strikes the sheet, an indentation, which lasts from 5 to 60 seconds, indicates the point of impact.

Abstract: A microprocessor associated with a PCM telecommunication network dialogues with remote data-handling components such as other microprocessors through message-interchange circuitry which includes a read/write memory having storage areas individually allocated to several PCM channels, one storage area serving to receive incoming messages destined for the local microprocessor while the remaining storage areas serve for the transmission of outgoing messages intended for respective remote components. A control unit, timed by signals from a synchronization extractor coupled to the network, communicates with the memory to detect state words written by the microprocessor into the memory to indicate the loaded or vacant condition of its storage areas.

Abstract: Radiolabeled steroid derivatives having the formula ##STR1## wherein St is a des-hydroxy steroid moiety of (i) a hydroxy steroid intended for radioimmunoassay or (ii) a hydroxy containing derivative of a steroid intended for radio-immunoassay, said derivative having a strong affinity for the antibodies of the steroid intended for radioimmunoassay; R is hydrogen or alkyl of 1 to 3 carbon atoms; n is 0, 1, 2, 3 or 4 and the asterisk (*) indicates tagging with a radioisotope, are useful as tracers in radioimmunoassays.

Abstract: An apparatus for packaging products such as dusty powders are provided. The apparatus is an enclosed housing (e.g., a glove box) with an open lower end and having two glove openings with gloves attached, an opening for attaching a waste disposal bag thereto, and an optional opening for attaching a bag for product samples. The glove box has means for securing a bag in a filling position around the lower end and has the discharge end of a product fill pipe extending into the open lower end. There are vacuum means for applying a vacuum to the inside of the glove box and for applying a vacuum from the inside through apertures circumferentially arranged around the lower edge of the glove box.

Abstract: Improved process for making an alkyl perfluoro(4,7-dioxa-5-methyl-8-fluoroformylnonanoate) from hexafluorpropylene oxide and either a monoalkyl difluoromalonyl fluoride or an alkyl perfloro(4-oxa-5-fluoroformylhexanoate) in the presence of fluoride ion catalyst which comprises carrying out the reaction in the presence of a medium consisting essentially of two aprotic liquids, one of the liquids in major proportion and being a poor solvent for methyl perfluoro(4-oxa-5-fluoroformylhexanoate), and the other liquid in minor proportion, being a good solvent for the same compound and being a solvent for the fluoride ion catalyst to the extent of at least 0.001% by weight at 20.degree. C. The product is an intermediate to a valuable fluorinated comonomer used for making fluorinated ion exchange resins.

Abstract: Cereal crops can be protected from damage caused by certain sulfonylurea herbicides by application of an antidotal compound selected from 1,8-naphthalic anhydride, .alpha.-(cyanomethoxyimino)benzacetonitrile, and N,N-diallyl-2,2-dichloroacetamide.

Abstract: An imaged element containing a polymeric relief or stencil image, in which the polymer contains crosslinkable moieties, is subjected to an image enlargement process by contacting the image with a solution containing a swelling agent for the image, and a crosslinking agent. The process is particularly useful in enlarging the half-tone image dot area of photopolymer litho masks wherein the half-tone image areas consist of hardened upper skins which rest on softer undervolumes having a lesser degree of polymerization or hardening.

Abstract: Self-supporting water-bearing explosive products, e.g., for use as primers and in blasting and seismic charges, contain discrete cells of an aqueous solution of an inorganic oxidizing salt and/or of an amine salt encapsulated by a crosslinked (thermoset) resin matrix. The products are sensitized by a dispersed solid high explosive and/or gas bubbles or voids. Preferred primers are sensitized by PETN and are rigid. The products are made by crosslinking a liquid polymer in the continuous phase of an emulsion which contains the aqueous solution as a discontinuous phase.

Abstract: Solvent-soluble polymeric esters and polymeric esterethers with radiation-crosslinkable ethylenic unsaturation in the linear polymeric structure, and recurring pendant hydroxyl groups, are derived from monomers which include diepoxides and monomers with at least one .alpha.,.beta.-unsaturated carboxylic acid group. These polymeric products react with cyclic anhydrides to form aqueous alkaline-soluble polymers which are useful as films for photomechanical processes, including lithographic applications and as photoresists.