Abstract: Apparatus for actuation of split locking nuts of a two platen injection molding machine. Each split locking nut has opposed mating nut halves movable in translation relative to a strain rod therebetween to selectably engage the strain rod. Mating nut halves of two split locking nuts are interconnected by connecting rods to define a pair of split nuts: a master split locking nut driven by an actuator; and a slave split locking nut to which motion is transferred by the connecting rods. Motion of a driven nut half of each master split locking nut is coupled to the opposed mating nut half by at least one coupling mechanism, each comprising a pivot arm and two pivot links interposed between the pivot arm and the opposed mating nut halves whereby translation of a driven nut half is coupled to effect equal and opposite translation of the opposed mating nut half.

Abstract: Apparatus for actuation of split locking nuts of a two platen injection molding machine. Each split locking nut has opposed mating nut halves movable in translation relative to a strain rod therebetween to selectably engage the strain rod. Mating nut halves of two split locking nuts are interconnected by connecting rods to define a pair of split nuts: a master split locking nut driven by an actuator; and a slave split locking nut to which motion is transferred by the connecting rods. Motion of a driven nut half of each master split locking nut is coupled to the opposed mating nut half by at least one coupling mechanism, each comprising a pivot arm and two pivot links interposed between the pivot arm and the opposed mating nut halves whereby translation of a driven nut half is coupled to effect equal and opposite translation of the opposed mating nut half.

Abstract: A client configuration tool configured to program a universal master control station to allow expansion of an existing oil field, monitoring and controlling of subsea/topside field equipment provided by multiple vendors, or combinations thereof.

Abstract: A method for controlling subsea components from multiple manufacturers, each having a proprietary communication interface. The method can include creating a graphical representation of a production system to be controlled by a universal master control station, setting control sequences for the system, creating a script for comprising control code for a universal master control station associated with subsea/topside equipment at a field, and configuring the universal master control station using the script.

Abstract: A system for controlling subsea components from multiple manufacturers, each having a proprietary communication interface. The system can include a client configuration processor. The client configuration processor can communicate with a client configuration data storage. The client configuration data storage can include a human machine interface client configuration tool and an engineering client configuration tool.

Abstract: Residues from the distillation of a toluene diamine phosgenation mixture are hydrolyzed by mixing them with water and subjecting the mixture to a temperature of 200-350 ° C. The hydrolysis is performed in the presence of a sufficient amount of a base to maintain the pressure in the reactor to no more than a predetermined operating level. The product mixture is then extracted to recover TDA, which can be recycled. This provides an efficient process whereby nearly quantitative conversion of the residues to TDA can be achieved.

Abstract: Residues from the distillation of a toluene diamine phosgenation mixture are hydrolyzed by mixing them with water and subjecting the mixture to a temperature of 200-350° C. The hydrolysis is performed in the presence of a sufficient amount of a base to maintain the pressure in the reactor to no more than a predetermined operating level. The product mixture is then extracted to recover TDA, which can be recycled. This provides an efficient process whereby nearly quantitative conversion of the residues to TDA can be achieved.

Abstract: The concentration of propenyl ethers in a hydroxy-functional polyether having oxypropylene units is reduced by a process including the step of contacting the polyether with an acid ion exchange resin for a time and at a temperature sufficient for the conversion of at least some of the propenyl ethers to propionaldehyde and in the presence of sufficient water for the conversion. Optionally, the polyether is treated with an epoxy compound in an amount sufficient to reduce the acidity of the polyol.

Abstract: Disclosed is a method for reducing hydrolyzable chloride in toluene diisocyanate (TDI) and, particularly, in TDI distillation bottoms, and polymers produced using the reduced hydrolyzable chloride bottoms. Crude TDI is heated, optionally in the presence of a solvent, to cause: (a) partial reflux, (b) partial reflux and fractionation, or (c) complete reflux and fractionation; under conditions sufficient to reduce hydrolyzable chloride. After distilling the crude TDI to form TDI monomer, the bottoms produced are thereby desirably reactive and viscosity-stable over a significant period of time. The treated bottoms can be reacted with compounds containing active hydrogen containing groups to form polyurethane, polyurea, and polyisocyanurate polymers, particularly foams.

Abstract: A process for reducing the amount of propenyl polyethers in hydroxy-functional polyethers comprising (1) contacting a neutral hydroxy-functional polyether, containing a propenyl polyether and water, and an acid catalyst soluble in the hydroxy-functional polyether under reaction conditions sufficient to convert at least a portion of the propenyl polyether to propionaldehyde; (2) contacting the product of step (1) and an epoxy compound to substantially scavenge the acid catalyst; and (3) stripping the product of step (2) to substantially remove the epoxy compound the the propionaldehyde.The resulting hydroxy-functional polyethers contain reduced amounts of propenyl polyethers and can therefore be used to prepare polyurethane foams having a reduced tendency to discoloration.

Abstract: Fluid streams containing hydrogen sulfide from a steam tubine or from a sour gas stream are contacted with an aqueous solution of a polyvalent metal chelate and a bisulfite whereby the hydrogen sulfide is converted to free sulfur and then to soluble sulfur compounds. The metal chelate is reduced to a lower oxidation state metal chelate and reduced metal chelate is subsequently oxidized with air back to the higher oxidation state and reused. The bisulfite is formed by combustion of a portion of the fluid stream and subsequent absorption of the sulfur dioxide formed thereby in a two-stage countercurrent scrubber operating at conditions favorable for high bisulfite and low sulfite formation and selective away from carbon dioxide absorption.

Abstract: Hydrogen sulfide is removed from gas streams containing it with or without carbon dioxide by contacting the gas feed stream with an aqueous liquid containing sulfide and bisulfide ions and having a pH in the range from 9 to 12 to remove a minor portion of the hydrogen sulfide and then removing the remainder with an aqueous liquid containing sulfide and bisulfide ions having a higher pH in the range from 11 to 13.5.