Abstract: In a method of recovering silver from an aqueous suspension, the suspension is admixed with a solution capable of converting silver halide to metallic silver to cause flocculation of the silver, the flocculated silver is separated from the aqueous phase, and the silver is recovered.

Abstract: A two-part socket unit for receiving and contacting a plug unit of a modular jack assembly of the type for fitting near an edge of a printed circuit board. The socket unit comprises an approximately rectangular housing having a bottom and top wall to which two side walls and a front and rear wall connect. The front wall is provided with an insertion aperture for the plug unit. In the housing resilient contact fingers extend for contacting the plug unit. The contact fingers extend directly or virtually directly in the housing connecting to the insertion aperture in the front wall. For fixing to the outside of the housing in front of the front wall, a panel is provided having a window which in the fitted state connects to the insertion aperture and contains latching means for latching the plug unit onto the socket unit. The panel has an essentially U-shaped cross-section of such size that the latching means lie at a distance from the front wall of the housing when the panel is fitted.

Abstract: The method of this invention obtains the underlying peak shapes of two signal spectrums whose ratios are representative of different species. The underlying peak shapes are fitted to the signal spectrums in a way that yield accurate ratios. The ratios are accurate even when the location of the peaks are not precisely known.

Abstract: A composition stabilized against thermal crosslinking and consequent reduction of its melt index, comprising a uniform dispersion of antimony oxide 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, carbon dioxide or sulfur dioxide; an organo-halogen fire-retardant; and a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such compositions are useful as adhesive layers in laminates used in packaging and building construction.

Abstract: A transfergrinder device for grinding a feed material. The transfergrinder device includes a grinding stator assembly and a grinding rotor assembly disposed generally axially concentric within the grinding stator assembly. The grinding stator assembly and grinding rotor assembly are maintained in generally spaced relationship from each other to define a grinding plane therebetween.

Abstract: A low-cost, high performance 1.times.N fiber optic coupler where N>16 is presented. The coupler has a GRIN lens having an first optic fiber aligned with the optical axis of the lens at one end of the lens. The first optic fiber ends in a microlens. At the other end of the GRIN lens a bundle of tapered second optic fibers is centered on the optical axis of the lens.

Abstract: A composition consisting essentially of 60.0-70.0 mol % TiO.sub.2, 14.3-20.0 mol % Nd.sub.2 O.sub.3, 11.0-16.7 mol % BaO, 1.0-8.0 mol % ZrO.sub.2 and 0.05-0.30 mol % CeO.sub.2. This composition is useful for forming densified ceramic dielectric bodies having a dielectric constant of at least 65 and which meet COG specifications, and multilayer capacitors that contain such dielectric bodies.

Abstract: A substantially twist-free multifilament polyamide yarn particularly suited for use in cut pile carpet and the process for making the yarn including impinging the yarn with saturated steam is disclosed. The filaments of the yarn are lightly bonded and the skin of the filaments is deoriented.

Abstract: A process for increasing the relative viscosity of a polyamide includes heating the polyamide in the presence of a base and a catalyst with the catalyst being at least one compound of the formula:X--(CH.sub.2).sub.n PO.sub.3 R.sub.2wherein X is 2-pyridyl, 4-morpholino, 1-pyrrolidino, 1-piperidino or R'.sub.2 --N-- wherein R' is an alkyl group having between 1 and 12 carbon atoms;n is an integer from 2 to 5; andR, being the same or different, is H or an alkyl group having between 1 and 12 carbon atoms.

Abstract: A security seal has a band mounting a protrusion at one end and a housing at the other end. The end of the protrusion may be first passed through apertures in a latch or closure and then may be inserted into, and held by gripping facilities within the housing. The portion of the protrusion extending away from the housing resides in the apertures and prevents operation of the latch or closure absent damage to or disintegration of the seal. Vibratory and oscillatory motion which occurs during shipping or handling of an item bearing the seal can cause the aperture walls to cut or saw through the protrusion, giving a false indication of tampering. A protective shroud is provided which surrounds the protrusion and is interposed between it and the apertures to prevent cutting or sawing of the protrusion.

Abstract: A pigment dispersant that is useful in a cathodic electrocoating composition is prepared by bringing into contact compound (i), an alkylene carbonate, with a compound (ii) of the structure: ##STR1## where R is and alkyl group having 8-24 carbon atoms, and bringing the resulting reaction product of (i) and (ii) into contact with a half blocked organic diisocyanate; this pigment dispersant has an advantage of allowing for the maximization of pigment to binder ratios and the minimization of volatile organic content (VOC) in electrocoating compositions.

Abstract: Allyl end-capped propylene terephthalate polyester oligomers are sulfonated in an aqueous system in the presence of a free radical initiator by a process in which only a part (about 15% to 40%) of the source of bisulfite is added at the start of the sulfonation step with the remainder being added later in that step, in such increments as will permit maintaining a clear single phase, to give sulfinate-containing sulfonated products, following which the sulfinate content is oxidized to give sulfonated end-capped propylene terephthalate polyester oligomers.

Abstract: A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of nonconductive, fiber-forming polymeric material and a minor amount of polystyrene, the combined fibers being drawn and co-bulked to produce an anti-static yarn. The conductive filaments used in this process have higher elongations to break, and carpets tufted from the yarns of the process show improved anti-static properties.

Abstract: A method for splitting the flow of a spin solution in a standard flash spinning process to increase sheet uniformity at increased flow rates. In one embodiment, the apparatus comprises a coarse mesh screen that is positioned within the pressure let-down zone of the spinneret assembly. The screen divides the solution flow into numerous individual sheet uniformity compared to sheets formed without the screen and at the same flow rate. The method produces nonwoven sheets having less ropiness and improved uniformity at relatively high solution flow rates.

Abstract: A segmented copolyetherester elastomer has soft segments formed from 60-95% poly(ethylene oxide) glycol and 40-45% of a second poly(alkylene oxide)glycol, preferably poly(tetramethylene oxide) glycol, and hard segments formed from terephthalic acid and ethylene glycol or 1,4-butane diol, the hard segments amounting to 8-20% of the elastomer weight. The elastomer can be molded into soft, elastic objects and can absorb water amounting to at least 100% of its dry weight.

Abstract: Heterocyclic pyrazoline carboxanilide insecticides including all geometric and stereoisomers thereof, as well as agricultural compositions containing them.

Abstract: A novel pharmaceutical composition and method is disclosed for the treatment of cardiovascular diseases, e.g. myocardial ischemia and/or arrhythmia. The method and composition include an effective amount of a compound of the formula ##STR1## wherein X, Y, R, R.sub.1, A, A', m, n, p, p' and B are as defined herein.

Abstract: An improved aqueous electrocoating composition that contains a catalyst for a curing the components of the electocoating composition of a blocked polyisocyanate and an epoxy amine adduct, wherein the catalyst is alkyl tin diacetyl acetonate, preferably, dibutol tin diacetyl acetonate.

Abstract: Azeotropic mixtures of dichloropentafluoropropane (HCFC-225) and trans-1,2-dichloroethylene (T-HCC-1130) with methanol or ethanol or isopropanol, are useful in solvent cleaning applications as refrigerants, aerosol propellants and polymer blowing agents.

Abstract: An improved process for the recovery of lactide or other dimeric cyclic ester from a gas stream containing the cyclic ester and such hydroxylic impurities as water and open-chain hydroxycarboxylic acids by scrubbing the gas stream with a nonpolar water-immiscible solvent at a temperature at which the cyclic ester is removed from the solvent and any water present in the gas stream is vaporized from the solvent. The cyclic ester is recovered from the solvent in a high state of optical purity.