Abstract: Phosphate esters including polymers are produced by mixing polyols, such as glycerol, with phosphoric acid material followed by heating under reduced pressure in the presence of inorganic base to temperatures of from about 135.degree. to 165.degree. C. By maintaining reactants under subatmospheric conditions, water is removed as formed. The products have utility as scale suppressant additives to water used in heat exchange and cooling tower applications.

Abstract: A method for the preparation of quaternary modified acrylamide polymers is disclosed. Applicable to both solutions of acrylamide polymer and to water-in-oil emulsions of finely divided acrylamide polymer, the method involves reacting the acrylamide with a secondary amine formaldehyde adduct followed by quaternization with an alkylating agent and then, stabilization. The composition of these polymers is also disclosed.

Abstract: Phosphate esters including polymers are produced by mixing polyols, such as glycerol, with phosphoric acid material followed by heating under reduced pressures in the presence of inorganic base to temperatures of from about 135.degree. to 165.degree. C. By maintaining reactants under subatmospheric conditions, water is removed as formed. The products have utility as scale suppressant additives to water used in heat exchange and cooling tower applications.

Abstract: A process for the production of water-soluble polyamine polymers by condensation reaction from ethylene dichloride and ammonia under pressure of 4-10 atmospheres which is conducted in two stages:1. reacting ethylene dichloride and ammonia at a temperature of about 110.degree.-120.degree. C and at a pH of 9.0-10.0 for 1-3 hours in the presence of a first amount of alkali metal hydroxide to produce a polyamine reaction mixture; and2. thereafter adding to said polyamine reaction mixture a second equal amount of alkali metal hydroxide wherein the total of the first and second amounts is equivalent to about 150% based on the equivalent weight of the available chlorine present and continuing heating the reaction mixture for about 8-12 hours at about 102.degree.-112.degree. C to produce a polyamine condensate polymer product of increased linear characteristics and thereafter quaternizing the product with methyl chloride.

Abstract: An automatic document handler adapted to register a document against a registration edge on the exposure platen of a reproduction machine, a pivotable baffle being provided to prevent documents from overriding the registration edge during the registration process.

Abstract: A process for recovering oil from subterranean oil-bearing formations which entails the use of a water treating medium. The water treating medium comprises an acrylamide-acrylic acid copolymer formed by hydrolyzing a water-in-oil emulsion containing from 2-75% by weight of finely divided acrylamide polymer to the extent that between 0.8 and about 67% of the amide groups originally present in the acrylamide polymer are converted into carboxyl groups.

Abstract: Water soluble ionic polymers are prepared by reacting an ionic formaldehyde adduct containing cationic groups with a water-in-oil emulsion which contains dispersed therein a finely divided water soluble vinyl addition polymer.

Abstract: This invention relates to sealing small leaks in oil containers such as tankers, underground storage tanks, and the like, by plugging the orifice of the leak utilizing water-soluble polymers which have been dispersed in a water-in-oil emulsion wherein the oil is the continuous phase.The active sealant consists of small densely packed spheres of the water-soluble polymers which have an effective size of about 0.5-500 microns. The dosage on an oil-wet surface is about 3-15 percent based on the weight of the oil present and may alternatively be measured as about 10-1000 ppm of polymer spheres applied to the orifice.

Abstract: Removal of organic impurities from a dilute solution of aqueous acrylamide is achieved byA. vacuum stripping of the aqueous acrylamide at > 25.degree. to 50.degree. C to concentrate the aqueous solution to about 80% acrylamide;B. cooling to about 25.degree. C to produce a slurry of acrylamide crystals;C. centrifuging the acrylamide crystals to express mother liquor and forming a crystal cake of acrylamide crystals;D. washing the crystal cake with water wash to produce an aqueous rinse liquor; andE. recycling the mother liquor and rinse liquor to vacuum stripping, step (a). The recycling of mother liquor from step (c) and rinse liquor from step (d) is effected n times where n = 4-20.This purifying process serves to remove certain nonvolatile and non-ionic organic impurities from the acrylamide monomer which are principally trieneamide together with small amounts of valeramide-.DELTA.-1:3-diene and .delta.-cyano-valeramide-.DELTA.-ene.

Abstract: A method for the preparation of quaternary modified acrylamide polymers is disclosed. Applicable to both solutions of acrylamide polymer and to water-in-oil emulsions of finely divided acrylamide polymer, the method involves reacting the acrylamide with a secondary amine formaldehyde adduct followed by quaternization with an alkylating agent and then, stabilization. The composition of these polymers is also disclosed.

Abstract: A method for coagulating synthetic rubber latices using an epichlorohydrin-dimethylamine copolymer.

Abstract: Oil-in-water type emulsions of bis trichloromethyl sulfone which can be made from dimethyl sulfide and sodium hypochlorite. Emulsification is achieved by using the by-product aqueous brine solution from the formation reaction thereby avoiding the ecological problem of brine waste disposal and resulting in a simple one-pot type emulsion preparation procedure. The technique is also particularly well adapted to making mixed biocide concentrate formulations containing emulsified bis trichloromethyl sulfone.

Abstract: A process for preparing both cationic and anionic acrylamide polymers through the reaction of a formaldehyde-secondary amine or formaldehyde-sulfurous acid adduct with a water-in-oil emulsion of finely divided acrylamide polymer. The resulting products are further characterized in that they can be inverted easily into aqueous solution. Compositions produced by the invention are also disclosed.

Abstract: Novel ionene polymers are formed by the Mannich reaction of an aromatic molcule having an electron withdrawing group with a lower aliphatic aldehyde and a lower aliphatic secondary amine followed by polymerizing the Manniched derivative by the use of chain extenders from the group of di-functional condensation monomers consisting of epihalohydrins and 1,4-dihalobutene-2. Additionally, the polymers may be prepared by substituting some or all of the secondary amines above with a primary amine and quaternizing the resultant polymers formed to increase the molecular weight of the product.The products of this invention have utility as polymers useful for water clarification and as emulsion breakers for water-in-oil or oil-in-water emulsions.These polymers and their quaternary salts have also a special utility here as an electroconductive coating which, when applied to paper specially as a substrate, produce an electroconductive surface adapted for electrographic printing.