Abstract: Composite inorganic articles are produced by bringing two separate inorganic slurries, each containing different ceramic materials, into contact with each other, simultaneously freezing the slurries while in contact with each other to form a unified frozen structure, thawing and drying the structure, and firing the unified structure.

Abstract: This invention relates to microbial methods and materials useful in the degradation of organic chemicals having toxic and obnoxious characteristics into innocuous materials compatible with the environment and to the process comprising identification, production and utilization of microorganisms for said purposes.

Abstract: This invention relates to microbial methods and materials useful in the degradation of organic chemicals having toxic and obnoxious characteristics into innocuous materials compatible with the environment and to the process comprising identification, production and utilization of microorganisms for said purposes.

Abstract: This invention relates to a new and novel brine system for use in electrolyzing salt to chlorine, caustic soda and hydrogen in chlor-alkali cells employing an ion exchange membrane and, more particularly, to the efficient use of brine as the raw material to be electrolyzed in chlor-alkali membrane cells. This invention also relates to a process for the conversion of a diaphragm cell and evaporator plant to one employing membrane type cells while still utilizing the existing brine treatment and caustic evaporation equipment and the resultant plant installations.

Abstract: This invention relates to polymer blends having improved hydrolytic stability, moldability, fire retardancy and dielectric strength which comprise, in admixture, (1) a linear aromatic polyester prepared from an aromatic dicarboxylic acid and bisphenol, and (2) polyphenylene sulfide. Such blends have a weight proportion of the polyphenylene sulfide in the range of above about 5 weight percent to less than about 60 weight percent, based on the admixture of the sulfide polymer and the polyester.

Abstract: The present invention relates to a novel organic compound, phenyl beta-chloro-alpha-hydroxy-beta-(3-trifluoromethylphenyl)ethyl ketone. This compound may be produced by:(a) condensing 3-trifluoromethylbenzaldehyde with acetophenone under basic conditions to form a substituted chalcone,(b) epoxidation of the substituted chalcone to produce the corresponding epoxide, and(c) converting the epoxide to a chlorohydrin, phenyl beta-chloro-alpha-hydroxy-beta-(3-trifluoromethylphenyl)ethyl ketone.

Abstract: Phenolic resin particles which are useful as friction particles for use in friction elements such as brake linings, clutch facings or other braking devices are produced by dispersing a liquid, heat curable phenolic resin in a paraffinic oil having a viscosity of at least about 1,000 SUS at 100.degree. F. at a temperature of about 100.degree. to about 175.degree. C. Preferred friction particles are prepared from phenolic resins containing benzylic ether linkages in the presence of hot oil or by other heating methods. Friction elements containing such particles are also described.

Abstract: The present invention provides a novel process for the production of methyl or ethyl ester of (3-trifluoromethylphenyl)-acetic acid. The process comprises the steps of:(a) converting (3-trifluoromethyl)-benzotrichloride to the corresponding benzoyl chloride,(b) cyanation of the benzoyl chloride to produce the corresponding benzoyl cyanide,(c) hydrolyzing the benzoyl cyanide to produce the corresponding keto-acid,(d) hydrogenating the keto-acid to produce (3-trifluoromethylphenyl)-alpha-hydroxyacetic acid,(e) hydrogenating (3-trifluoromethylphenyl)-alpha-hydroxyacetic acid in the presence of glacial acetic acid to produce the corresponding substituted acetic acid, and(f) esterifying the substituted acetic acid using an alcohol selected from the group consisting of methyl and ethyl to obtain the corresponding methyl or ethyl ester of (3-trifluoromethylphenyl)-acetic acid.

Abstract: The compound p-phenoxybenzotrichloride, useful as an intermediate in the preparation of various pesticides and monomers for the production of polyketone polymers, is prepared by the light-catalyzed reaction of p-phenoxytoluene with chlorine.

Abstract: Phenolic novolak resins are described which are structurally characterized as having from about 55% to about 90% of the available theoretical paraphenyl linkages in the resin chain bridged to a phenyl group. The resin compositions of this invention provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection or cold manifold molding processes, but can also be used in transfer, compression and injection molding processes.

Abstract: Phenolic novolak resins are described which provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection or cold manifold molding processes, but can also be used in transfer, compression and injection molding processes.

Abstract: An improved anode element for monopolar filter-press electrolysis cells comprises providing said anode element with an integral hollow member positioned above the upper surface of said anode element. Preferably, said hollow member is formed as an integral extension of the electrode frame, said hollow member having an outlet for withdrawing chlorine gas and being adapted to permit continuous fluid contact with said anode element, said hollow member being further adapted to provide sufficient hydrostatic pressure in said anode element for optimal liquid flow through the diaphragm over the entire operating cycle of the electrolysis cell.

Abstract: Phenolic novolak resins are described which are structurally characterized as having from about 55% to about 90% of the available theoretical paraphenyl linkages in the resin chain bridged to a phenyl group. The resin compositions of this invention provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection or cold manifold molding processes, but can also be used in transfer, compression and injection molding processes.

Abstract: An improved nozzle feed assembly is described. The assembly includes temperature-controlled member, preferably cylindrical in shape, having a closed end and an open end. The open end is fitted with standard threads to facilitate attachment of the nozzle member to the feed barrel of a conventional screw-type molding machine. The nozzle member has an internal temperature controlling means and a plurality of feed outlets positioned on the periphery of the nozzle member near the closed end. The temperature maintained in the nozzle member is sufficiently high to maintain the thermosetting molding material within the nozzle member in a plasticized state and sufficiently low that no substantial curing of the thermosetting molding material takes place. In an alternate mode, the assembly includes a sleeve member positioned around the periphery of the nozzle member and moveable to cover and uncover the feed outlets in the periphery of the nozzle member.

Abstract: A method is provided for reducing waste stream pollutants by the control and separation of color bodies, COD, BOD and other organics from inorganic chloride pollutants in the aqueous waste effluent of a cellulosic pulp bleaching process containing a sequential chlorination stage (D.sub.c) or mixture (D/C) stage followed by an extraction (E) or oxygen (O) stage, comprising, maintaining the conditions of the D.sub.

Abstract: A unitary filter press cell circuit is described. The circuit comprises a plurality of individual electrolytic cells mounted on a support structure positioned parallel to the longitudinal axis of the cell circuit. The longitudinal support structure is comprised of the electrolyte inlet conduits for the cell circuit and the electrolysis product outlet conduits for the cell circuit. The composite unit, cells and support structure, may be moved as a single unit, suitably by hoisting, facilitating the removal from service of a faulty circuit and the subsequent substitution with a replacement circuit. The longitudinal support structure is suitably comprised of conduits or headers for catholyte, anolyte, the anodic products and the cathodic products of the cells in the circuit. Although the conduits may be round or oval in cross-section, conduits of a rectangular cross-section are preferred.

Abstract: The invention relates to thermoplastic polymeric compositions comprising a linear aromatic polyester of a bisphenol and a dicarboxylic acid admixed with a minor proportion of a perfluoroalkenoxy surface active compound. These compositions which are suitable for use as film or molding compositions exhibit enhanced tensile strength on ageing without substantial detriment to other properties of the polyester.

Abstract: An improved transesterification process for preparation of a linear aromatic polyester comprising bisphenol and dicarboxylic acid monomer units terminated with a carboxylic acid ester groups derived from a long chain aliphatic monofunctional alcohol comprises as the improvement partially transesterifying a diaryl ester of the dicarboxylic acid with the alcohol prior to carrying out the transesterification polymerization reaction of said aryl ester and the bisphenol.

Abstract: A unitary frame and membrane assembly particularly useful in a filter press electrolytic cell arrangement is provided by the present invention. The assembly comprises a rigid, peripheral frame member having separable peripheral frame portions. A permselective membrane member is positioned between the separable peripheral frame portions, and the membrane member and frame portions are secured together to form a unitary frame and membrane assembly. The present assembly is adapted for use as the barrier component in electrolytic cells which utilize a separatory membrane barrier between the cell electrodes.

Abstract: This invention relates to a solid phenolic resin composition useful as a binder in the preparation of foundry sand cores and molds which comprises a solid novolac resin and a lubricant-containing solid resole resin wherein the lubricant is incorporated into the resole during the preparation of the solid resole. In a preferred binder composition, the resole component of the binder is prepared in the presence of an alkali metal catalyst and an amine catalyst. The invention also includes the process for preparing sand containing foundry cores and molds from the preferred binder composition and the sand foundry core and mold products of said process.