Abstract: Monochloromonofluorobenzene provides a reaction medium for chlorination of C.sub.2 -C.sub.8 olefin polymers which is inert to chlorination and does not function as a stratospheric ozone depleter.

Abstract: The viscosity of copolymers of a) ethylene, b) C.sub.1 -C.sub.8 acrylates, C.sub.1 -C.sub.8 methacrylates, or vinyl esters of C.sub.1 -C.sub.8 carboxylic acids, and c) at least one alpha, beta-unsaturated carboxylic acid of 3-12 carbon atoms selected from the group consisting of monocarboxylic acids, dicarboxylic acids, and monoesters of dicarboxylic acids is increased, while maintaining gel content at a level of less than 3%, by treatment with a mixture of an organic peroxide and a chromium (III) salt.

Abstract: The size of a digitally-stored image is modified as desired by expanding the source image data and adjusting the input to the output raster display device accordingly.

Abstract: The orthomode transducer between a circular waveguide and a coaxial cable consists of a circular waveguide section, into which two probes externally connected to coaxial connectors penetrate. The probe placed close to the input aperture of the waveguide is tuned by a screw and a metal plate belonging to the same axial plane and the other probe is tuned by a screw and a circular disc which closes the waveguide. The shapes of the plate and of the probes are such as to allow the best power coupling between the waveguide and the coaxial line over a wide operating band (10% of the mid-band frequency).

Abstract: Aramid block copolymers which contains blocks whose polymer chains are flexible, and blocks whose polymer chains are flexible in solution and in undrawn polymer, but relatively rigid in drawn polymer, are disclosed. The aramids are tough materials with high modulus and tensile strength. Also disclosed is a process for making such block copolymers. The copolymers are useful as fibers and films, for example in ropes and composites.

Abstract: Compounds which are inhibitors of cholesterol biosynthesis (by inhibiting de novo squalene biosynthesis), and thus are useful as hypocholesterolemic agents and antiatherosclerotic agents are provided which have the structure ##STR1## wherein m is 0, 1, 2 or 3; n is 0, 1, 2, 3 or 4;Y.sup.1 and Y.sup.2 are H or halogen;R.sup.2, R.sup.3 and R.sup.4 may be the same or different and are independently H, metal ion, C.sub.1 to C.sub.8 alkyl or C.sub.3 to C.sub.12 alkenyl;X is O, S, NH or NCH.sub.2 R.sup.15 wherein R.sup.15 is H or C.sub.1 to C.sub.5 alkyl; andR.sup.1 is R.sup.5 --Q.sup.1 --Q.sup.2 --Q.sup.3 -- wherein R.sup.5, Q.sup.1, Q.sup.2 and Q.sup.3 are as defined herein;and when m is o, X is other than S; and if m is o and X is 0, then n is 1, 2, 3 or 4; including all stereoisomers thereof.

Abstract: Excellent resolution and sensitivity in the patterning of resists utilized in device and mask manufacture is obtained with a specific composition. In particular this composition involves polymers having recurring pendant acid labile .alpha.-alkoxyalkyl carboxylic acid ester moieties in the presence of an acid generator activated by actinic radiation such as UV-visible, deep ultraviolet, e-beam and x-ray radiation.

Abstract: DNA sequences encoding herbicide metabolizing cytochrome P450 enzymes and iron-sulfur proteins that donate electrons to these enzymes, were introduced into plants and microorganisms rendering them able to produce the encoded gene products and to metabolize herbicides.

Abstract: A cartridge for use in a mixing, dispensing and purging apparatus of mutually reactive chemicals. The cartridge comprises a mixing assembly and purging rod. The mixing assembly includes a core member that is preferably deformable with an axial bore formed in it through which the purging rod reciprocates. The mixing assembly also includes a scraper assembly positioned within the mixing assembly. The scraper assembly includes two cup-shaped members positioned essentially in mirror image with each cup-shaped member including an aperture in its base through which the purging rod extends. An insert is positioned within both of the cup-shaped members and extends between the base of each cup-shaped members. The cup-shaped members and insert are designed to remove material built up on the reciprocating purging rod while keeping the rod aligned and preventing fluid flow through the scraper assembly. The scraper assembly thus alleviates the need for any solvent material.

Abstract: A motorized wheelbarrow employing a lightweight and small displacement engine and multi-speed transmission to drive the wheel of the wheelbarrow. The multi-speed transmission permits use of a lightweight and small displacement engine which has been set to operate at a constant predetermined peak power RPM so as to provide power to the wheelbarrow at both low and relatively high rates of speed.

Abstract: Aramid block copolymers which contains blocks which are crystalline and blocks that are noncrystalline after drawing and where polymer chains are flexible in solution and in undrawn polymer, but relatively rigid in drawn polymer, are disclosed. The aramids are tough materials with high modulus and tensile strength. Also disclosed is a process for making such block copolymers. The copolymers are useful as fibers and films, for example in ropes and composites.

Abstract: A method is provided for rehabilitating or restoring the vasorelaxant action of the endothelium impaired by atherosclerosis and/or hypercholesterolemia, thereby preventing arteriospasm in the coronary arteries using an angiotensin converting enzyme inhibitor such as captopril, fosinopril, ceranapril, enalapril or lisinopril, which may be administered by oral or parenteral dosage forms.

Abstract: A high speed data interface unit that is fully compatible with existing, trunked, land mobile voice transceivers is provided. Data rates of up to 4800 baud using bilevel modulation are achievable without the use of dedicated data transceivers, or the designation of a dedicated data channel. The data interface includes a microprocessor based modem having data pulse formation, data recovery, and pulse filtering circuits that optimize available channel bandwidth for communication of digital data.

Abstract: An on-line training neural network for process control system and method trains by retrieving training sets from the stream of process data. The neural network detects the availability of new training data, and constructs a training set by retrieving the corresponding input data. The neural network is trained using the training set. Over time, many training sets are presented to the neural network. When multiple presentations are needed to effectively train, a buffer of training sets is filled and updated as new training data becomes available. The size of the buffer is selected in accordance with the training needs of the neural network. Once the buffer is full, a new training set bumps the oldest training set off the top of the buffer stack. The training sets in the buffer stack can be presented one or more times each time a new training set is constructed.

Abstract: Novel compounds having the formula ##STR1## and its isomer ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and X are as defined herein. These compounds inhibit the action of angiotensin II and are useful, therefore, for example, an antihypertensive agents.

Abstract: The present invention relates to an apparatus for receiving, storing and dispensing a plurality of sheets of film in a plurality of sizes, particularly for use in automatic daylight film handling systems.

Abstract: A photopolymerizable printing element comprising a photopolymerizable layer and an elastomeric layer coated thereon wherein said elastomeric layer contains at least one thermoplastic, elastomeric block copolymer and at least one reaction product of an epoxide resin with a rosin derivative. The element produces flexographic printing plates having improved printing results with aqueous and alcoholic printing inks.

Abstract: A process for preparing images on a tonable, light-sensitive layer in which a transfer layer containing a toner and a core/shell polymer as a binder is used. The core polymer has a glass transition temperature above 50.degree. C. and the shell polymer has a glass transition temperature below 40.degree. C. Such transfer layers are used in proofing processes for high quality printing.

Abstract: A process for etching with an atomic force microscope using a two-dimensional metal chalcogenide as the substrate, is disclosed.

Abstract: The invention is directed to a process and apparatus for recovering refrigerant from a refrigeration purge stream wherein a gaseous purge stream containing a refrigerant and non-condensible gasses is countercurrently contacted with a high boiling point liquid which absorbs the refrigerant from the purge stream. Preferably a scrubbing column is used to effect countercurrent contact between the purge stream and the liquid stream.