Abstract: Method of preparing thiobiscarbamates by reacting nitrogen-containing heterocyclic base and sulfur monochloride or sulfur dichloride and reacting the resulting base-sulfur chloride adduct with carbamate to form thiobiscarbamates.

Abstract: N-[4-(tert-butyl)phenylsulfenyl]-N-alkylcarbamoyl fluoride compounds are useful as intermediates in the preparation of pesticidally active carbamoyloxime compounds.

Abstract: Process for treating anion exchange resins containing a major portion of weak-base groups in catalytically inactive salt form and a minor portion of strong-base groups in catalytically inactive salt form wherein the resin is contacted with an aqueous solution containing ammonium hydroxide and ammonium chloride.

Abstract: A method for increasing the sugar content of plants by applying to such plants an effective amount of a pyridyloxy-phenoxyalkane carboxylic acid or derivative thereof.

Abstract: Process for producing a 1-naphthyl carbamate by reacting 1-naphthyl with methyl isocyanate utilizing an anion exchange resin catalyst treated to convert weak-base groups to their catalytically active free amine form while maintaining any strong-base groups in their catalytically inactive salt form.

Abstract: A method for increasing the sugar content of plants by applying to such plants an effective amount of a phenoxy-phenoxyalkane carboxylic acid or derivative thereof.

Abstract: A reactor/separator device is provided for use in automated solid phase immunoassay. The device is a column, fitted at the bottom portion thereof with a water impermeable disc which can hold immunoabsorbents immobilized antisera, ion exchange resins and the like. When the contents of the column supported by the disc are brought into contact with an aqueous phase containing reagents or reactants by centrifugal force, a chemical reaction is initiated. After reaction, centrifugally applied pressure forces the aqueous phase through the filter disc making it water permeable and separating a desired component for subsequent analysis.

Abstract: Certain 2-oximino-tetrahydro-1,4-oxazin-3-one and 5-oximino-1,3-oxazolidin-4-one carbamate esters exhibit outstanding miticidal, insecticidal and nematodicial activity; certain 2-oximino-tetrahydro-1,4-oxazin-3-ones and 5-oximino-1,3-oxazolidin-4-ones are useful intermediates in the preparation of pesticidally active carbamate compounds.

Abstract: A method is disclosed for preparing carborane-siloxane polymers directly from carborane which comprises reacting and polymerizing a dilithio salt of a carborane with a bis-halo-ended siloxane. This novel method offers the advantage of eliminating the expensive and time-consuming preparation of certain monomer intermediates of carborane employed in the preparation of carborane-siloxane polymers.

Abstract: A process for the determination of serum inorganic phosphate utilizing a centrifugal analytical photometer. By optimizing the concentration of surfactant and surfactant media, the reaction rate is increased and the pretest mixing time reduced. The improved process is particularly useful for the rapid and accurate determination of inorganic phosphate in body fluids, such as blood serum.

Abstract: Elastomeric high molecular weight alternating and random block copolymers are disclosed which comprise blocks of a soft carborane-siloxane elastomer and blocks of a high performance rigid polymer. Methods for preparing such block copolymers are also disclosed. These copolymers exhibit the advantages of high temperature elastomers while allowing the use of conventional thermoplastic fabrication techniques.

Abstract: A predetermined mass comprising an acrylate salt and acrylamide is exposed to a controlled intensity and dose of ionizing radiation effecting simultaneous cross-linking and polymerization thereof to form a polyelectrolyte hydrogel. The resulting hydrogel is an insoluble hydrophilic copolymer which can contain or when dried absorb large quantities of aqueous fluids.

Abstract: Fine grain metal carbide powders are conveniently prepared from the corresponding metal oxide by heating in an atmosphere of methane in hydrogen. Sintered articles having a density approaching the theoretical density of the metal carbide itself can be fabricated from the powders by cold pressing, hot pressing or other techniques.

Abstract: A solid-phase radioimmunoassay support, useful in chromatographic columns, is provided in tablet form which upon contact with an antigen-antibody solution swells to conform to the column configuration. The tablet is more easily handled, stored, and transported than the known wet, chromatographic columns presently in use.

Abstract: Prosthetic devices, such as orthopedic, dental and maxillofacial prostheses, are provided which are composed of an inner load bearing, functional component and an outer foamed or sintered porous coating of selected bioengineering thermoplastics. The bioengineering thermoplastic coating is provided in regions where long-term bone fixation is desired by tissue ingrowth. The coatings offer substantial biomechanical advantages over any material system previously reported. Also provided, are anatomically shaped devices comprised totally of bioengineering thermoplastics with select porous areas; these devices include bone gap bridges, bone caps, and alveolar ridge augmentation implants.

Abstract: Flexible metal carbide fabrics are produced by a process that involves the steps of:(a) impregnating a preformed organic polymeric fabric with a solution of a metal compound;(b) heating the impregnated fabric to evolve volatile decomposition products and to leave a carbonaceous relic containing the metal in finely dispersed form; and(c) further heating the relic to 1000.degree.-2400.degree. C. in a non-oxidizing atmosphere to form the metal carbide. Boron carbide and silicon carbide fabrics produced by this process are attractive for high temperature structural applications.

Abstract: A rechargeable system is provided for the production of sterile, non-pyrogenic, isotonic solutions of radioisotopes such as sodium pertechnetate, which are useful as diagnostic agents in the medical field. A unique feature of the system is that transfer of the recharging supply of the parent isotope from the shipping shield to the generator contained in the generator shield can be effected with minimal exposure to radiation.

Abstract: The tetradecahydroundecaborate(-1) anion is synthesized from a metal borohydride by heating a suspension of the borohydride ion in a solvent, such as diglyme, with agitation at a temperature of from 85.degree. C. to about 135.degree. C. and adding an alkyl halide. The B.sub.11 H.sub.14.sup.- anion obtained is useful in the synthesis of decaborane, an intermediate in formation a carborane-based polymers.

Abstract: Adsorption columns are provided which can be utilized in radioimmunoassay systems, such as those involving the separation of antibody-antigen complexes from free antigens. The preparation of the columns includes the treatment of retaining substrate material to render it hydrophilic, preparation and degassing of the separation material and loading the column.

Abstract: Carborane-siloxane polymers are conveniently prepared by the polymerization of a carborane disilanol and either a silyl diamine, a ureido-silane, or a silyl dicarbamate. The resulting linear polymers are characterized by relatively high molecular weights and are elastomeric in nature. These gumstocks are compounded with suitable fillers and additives and fabricated into cured elastomeric articles. The carborane-siloxane elastomers exhibit excellent high temperature properties which render them especially useful for a wide variety of applications, such as gaskets, seals, wire and cable insulation and the like.