Abstract: An apparatus and process for recovering a desired gas such as xenon difluoride, xenon, argon, helium or neon, from the effluent of a chemical process reactor that utilizes such gases alone or in a gas mixture or in a molecule that becomes decomposed wherein the chemical process reactor uses a sequence of different gas composition not all of which contain the desired gas and the desired gas is captured and recovered substantially only during the time the desired gas is in the effluent.

Abstract: An apparatus and process for recovering a desired gas such as xenon difluoride, xenon, argon, helium or neon, from the effluent of a chemical process reactor that utilizes such gases alone or in a gas mixture or in a molecule that becomes decomposed wherein the chemical process reactor uses a sequence of different gas composition not all of which contain the desired gas and the desired gas is captured and recovered substantially only during the time the desired gas is in the effluent.

Abstract: Certain synthetically prepared biopolymers are useful as peptizers in the preparation of photographic silver halide emulsions and elements. Such materials can be used as either nucleation or growth peptizers in place of common peptizing colloids, such as gelatins. The biopolymers can be prepared using recombinant or chemical synthetic methods and designed to have a particular affinity (either high or low) for silver ions. Thus, they can be used to control silver halide grain morphology in the emulsions.

Abstract: Improved sensitivity and reduced minimum density are provided by an emulsion in which high bromide tabular grains exhibit an average thickness of less than 0.07 .mu.m and have latent image forming reduction chemical sensitization sites and adsorbed spectral sensitizing dye on their surfaces. The tabular grains contain a dopant capable of forming shallow electron trapping sites, and the spectral sensitizing dye exhibits an oxidation potential more positive than 1.2 volts. A photographic element is disclosed which locates the emulsion in a layer overlying a minus blue recording emulsion layer. Exceptionally sharp images are formed in the minus blue recording emulsion layer when in the overlying emulsion layer greater than 97 percent of the total projected area of the silver halide grains having an equivalent circular diameter of at least 0.2 .mu.m is accounted for by tabular grains having an average equivalent circular diameter of at least 0.7 .mu.m.

Abstract: A process for preparing a thin tabular grain silver halide emulsion comprised of silver halide grains which have a halide content of at least 50 mole percent bromide, wherein tabular grains of less than 0.15 micrometers in thickness and having an aspect ratio of greater than 8 account for greater than 50 percent of the total grain projected area, comprises the steps of nucleating the silver halide grains with a gelatino-peptizer or with the use of certain synthetic polymers that serve as effective nucleation peptizers and then growing the silver halide grains with the use of either a gelatino-peptizer or certain synthetic polymers that serve as effective growth peptizers.

Abstract: A flexible and nonbrittle negative-working photoresist composition comprises a polymeric binder, a photoinitiator composition, and a polymerizable cyclohexyleneoxyalkyl acrylate monomer characterized by the structural formula: ##STR1## wherein R is H or CH.sub.3,a is an integer of from 1 to 10 andb is 1 or 2.

Abstract: A laminate, adapted for manufacturing frames of metal beam leads that are bonded to integrated circuit chips, comprises(a) a flexible metal strip,(b) a layer of a first resist adhered to one surface of the metal strip, and(c) a layer of a second resist adhered to the opposite surface of the metal strip,the second resist being a negative-working resist comprising(1) a polymeric binder,(2) a photopolymerizable monomer mixture, and(3) a photoinitiator composition. The negative-working resist exhibits excellent flexibility and adhesion to the metal and superior performance during high temperature processing, whereby it serves effectively as a support for the beam leads.

Abstract: A method for making an electronic component, for example, a motor coil. The method comprises the steps of forming a plurality of conductive layers and interconnecting the layers to provide an electrically conductive path between the layers. In order to form interconnections between the layers which have a low electrical resistance and which can be formed in a high-speed automated process, a conductive paste is applied to one of the conductive layers and the layers are superposed to form the interconnections.

Abstract: Photographic elements and diffusion transfer assemblages are described which contain a novel polymeric mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;B represents recurring units derived from a monomer containing at least two ethylenically unsaturated groups;QN.sup..sym. represents a moiety containing a quaternized nitrogen group;R.sup.1 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of A;R.sup.2 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of QN.sup..sym.

Abstract: Photographic element and diffusion transfer assemblages are described which contain a novel mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;R represents hydrogen or methyl;each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;X.sup..crclbar. represents an anion;w is from about 0 to about 25 mole percent;x is from about 30 to about 90 mole percent;y is from about 8 to about 65 mole percent;andz is from about 2 to about 9 mole percent.

Abstract: Photographic elements, diffusion transfer assemblages and processes are described wherein a dye image-receiving layer comprising a poly(vinylimidazole) mordant is employed in a nonmordanting, water-permeable polymeric vehicle. The polymeric vehicle comprises recurring units derived from a hydroxyalkyl acrylate ester, and/or an N-hydroxyalkylacrylamide, and/or an N-alkylacrylamide. Image sharpness is thereby improved, especially under conditions of high temperature and humidity.