Abstract: A device for replicating moist bacterial or other cell colonies including a rigid layer, a resilient backing layer secured to one side of the rigid layer and a cell colony transfer surface made from an open-cell, flexible foam which includes a hydrophilic material therein and which surface is absorbent, porous, compliant and exhibits less resilience than said backing layer.

Abstract: A Well Indicating Device which is useful in laboratory procedures for identifying, in a predetermined but variable sequence, wells of a plurality fo independent but interrelated substance-receiving wells, such as of a microtiter tray, which are subject of manipulation.

Abstract: A process for replacing an aromatic carbon-thallium bond with a carbon-oxygen bond. The process is particularly suitable for producing specific aromatic isomers by thallating an aromatic compound and replacing the thallium with a carboxylate group which can be further hydrolyzed if desired to form an aromatic hydroxyl compound.

Abstract: A device for replicating microbial or other cell colonies or aggregates comprises a layer of moisture absorbent material either in the form of a coherent film or comprising individual particles or a combination of film and particles, said layer being secured to a suitable handle forming element by means of which the device may be manipulated.

Abstract: Liquid mixtures of trialkylphosphine oxides, useful as antistats in thermoplastic polymers, are obtained by alkylating excess phosphine with a mixture of higher .alpha.-olefins to give a mixture of higher alkylated phosphines and unreacted phosphine and alkylating that mixture with a lower .alpha.-olefin. This method provides a larger percentage of higher alkyl groups and a lower percentage of lower alkyl groups compared to alkylating the phosphine with all of the mixed .alpha.-olefins in a single reaction. The shift in higher alkyl groups decreases the volatility of the trialkylphosphine mixture and is an advantage when preparing plastic compositions at higher formulation temperatures.

Abstract: Flame retardant polyphenylene ether resin compositions are described in which the flame retardant agent is a mixture (by weight) of the following:(a) about 1.5% to about 3.0% of: ##STR1## (b) about 15.0% to about 20.0% of: ##STR2## (c) about 23.0% to about 28.0% of: ##STR3## (d) about 47.0% to about 56.0% of: ##STR4## wherein R.sub.1 and R.sub.2 are each selected from the class consisting of hydrogen, methyl and ethyl, it being understood that when one of R.sub.1 and R.sub.2 is hydrogen the other is ethyl and when one of R.sub.1 and R.sub.2 is methyl the other is methyl, the resulting two methyl groups being in the 2,4-, 2,5-, 2,3-, 3,4- and 3,5-positions, it being further understood that the ethyl groups are almost entirely in the meta (m) and para (p) positions.

Abstract: This invention claims flame retardant polycarbonate resin compositions comprising an aromatic carbonate polymer and, as a novel flame retardant additive therefor, a phosphorus-containing polycarbonate composition produced by carrying out a polycarbonate condensation in which at least part of the diol compound is a bishydroxyalkylphosphine oxide. Also described are the novel flame retardants per se.

Abstract: A polyurethane elastomer product formed by curing a mixture of an NCO terminated urethane prepolymer and a polyhydroxyalkylphosphine oxide. The polyhydroxyalkyl phosphine curative is a compound of the class having the formula: ##STR1## wherein R is alkylene of 3 to 6 carbon atoms, R.sub.1 is alkyl of 2 to 10 carbon atoms, cycloalkyl of 6 to 12 carbon atoms and n is an integer of 2 to 3. Exemplary polyhydroxyalkyl phosphine curatives are (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.2 P(O)--C.sub.4 H.sub.9 --sec. and (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.3 P(O).

Abstract: Thermoplastic polymers, having antistatic properties, are obtained by incorporating in the polymers a liquid mixture of trialkylphosphine oxides.

Abstract: The invention is for a process for removing unalkylated anthraquinones from alkylated anthraquinone by forming a solution thereof, reducing the solution sufficiently so that at least part of the unalkylated anthraquinone is in the reduced form, and extracting the reduced solution in the absence of an oxidizing agent with an aqueous alkaline solution. The process is especially suited for removing anthraquinone from an alkylated anthraquinone for use in the manufacture of hydrogen peroxide by reducing and oxidizing a solution of the alkylated anthraquinone.

Abstract: Toiletry formulations including low molecular carrageenan extractives which are present in amounts effective to provide for substantivity to hair and skin keratin and provide for conditioning of hair and skin as a result of the water-binding capacity of such extractives.

Abstract: An electrophoresis medium, comprising a copolymer of acrylamide and an ethylenically unsaturated resin formed by replacing at least some of the hydroxyl hydrogens in a polysaccharide with an ethylenically unsaturated group, is described.

Abstract: The invention provides a process to increase the mol ratio of nuclearly hydrogenated working compound to the total working solution for the production of hydrogen peroxide by the cyclic reduction, oxidation, and extraction of an alkylated anthraquinone. The process produces the nuclearly hydrogenated working compound without producing substantial quantities of undesired by-products.

Abstract: Bleaching compositions consisting of an N-halo compound with a coating comprising a silicate bound, hydrated, soluble inorganic salt and an alkali metal salt of boric acid. The compositions exhibit decreased localized dye attack on colored fabrics and decreased fabric attack and are useful in fabric laundering either alone or when formulated with a laundry detergent.

Abstract: The invention provides a process to increase the mol ratio of nuclearly hydrogenated working compound to the total working compound in a make-up solution to be added to the working solution of an operating plant in producing hydrogen peroxide by the cyclic reduction, oxidation, and extraction of an alkylated anthraquinone. The process produces the nuclearly hydrogenated working compound in the make-up solution without producing substantial quantities of undesired by-products.

Abstract: A mixed phenyl/mesityl phosphate ester composition that is useful as a fire retardant additive, having a phosphorus content of from about 8.2% to about 8.4% is prepared by reacting with agitation at about 120.degree. C. to 130.degree. C. distilled still bottom phenols with phosphorus oxychloride in the presence of a Friedel-Crafts catalyst to form a reaction product containing a substantial quantity of monoaryl phosphodichloridate and diaryl phosphochloridate. This reaction product is then further reacted at an elevated temperature with sufficient phenol to form a triaryl phosphate ester mixture. The mixed phenyl/mesityl phosphate ester so obtained remains a liquid at room temperature over a substantial period of time.

Abstract: An electrophoresis medium, comprising a copolymer of acrylamide and an ethylenically unsaturated resin formed by replacing at least some of the hydroxyl hydrogens in a polysaccharide with an ethylenically unsaturated group, is described.

Abstract: Cyclic phosphine oxides of the formula: ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating an ethylenically unsaturated cyclic hydrocarbon with phosphine.The cyclic phosphine oxides are useful as flame retardants for styrene modified polyphenylene ether resins.

Abstract: A process of preparing a tertiary haloalkylphosphine oxide by reacting a tertiary hydroxyalkyl phosphine with hydrogen halide under acidic conditions is described.

Abstract: The invention provides a process to manufacture hydrogen peroxide by cyclically reducing, oxidizing, and extracting a working compound dissolved in an inert solvent, with solvent and/or energy from the effluent from the oxidation step being recovered thereby increasing the economically feasible temperature and pressure ranges of the oxidation step.