Abstract: A method is disclosed for controlling anionic trash and pitch deposition and treating coated broke which comprises the step of adding a polyammonium quaternary to a pulp and papermaking system. The polyammonium quaternary, which may be either branched or crosslinked, comprises at least one cationic monomer, preferably diallyldimethylammonium chloride, and at least one branching or crosslinking monomer, preferably N,N,N-triallylamine or N,N,N-triallylamine hydrochloride.

Abstract: Disclosed are the Rhodamine B esters of hydroxy C.sub.2 -C.sub.6 lower alkyl acrylates. Specifically, the hydroxy lower alkyl radical is a linear hydroxy lower alkyl radical having the hydroxy group attached to the terminal carbon atom. Also shown are copolymers of diallyldimetyl ammonium chloride which contains from 0.01-2 mole percent of these Rhodamine B esters and their use in treating industrial waters.

Abstract: Disclosed are the Rhodamine B esters of hydroxy C.sub.2 -C.sub.6 lower alkyl acrylates. Specifically, the hydroxy lower alkyl radical is a linear hydroxy lower alkyl radical having the hydroxy group attached to the terminal carbon atom. Also shown are copolymers of diallyldimetyl ammonium chloride which contains from 0.01-2 mole percent of these Rhodamine B esters and their use in treating industrial waters.

Abstract: The invention comprises a method of determining the concentration of a water soluble polymeric treating agent added to wastewater treatment system. The method comprises several steps including dosing the body of water with a predetermined concentration of a treating agent having a fluorescent tag covalently bonded to the treating agent, removing a sample of the water containing the tagged treating agent, analyzing the emissivity of the sample to measure the concentration of the treating agent in the sample and adjusting the concentration of the treating agent accordingly to fit within a predetermined concentration range.

Abstract: An improved process for the preparing a dispersions of water soluble cationic polymers in an aqueous salt solution is disclosed. The improvement comprises using as a polymeric dispersion stabilizer a water soluble hydrophobically associating copolymer of diallyldimethylammonium chloride and a monomer selected from the group consisting of: ##STR1## and alkyl esters of acrylic acid, where R.sub.1 is either hydrogen or CH.sub.3 ; R.sub.2 and R.sub.3 are each an alkyl group having 1 to 3 carbon atoms; A.sub.1 is either an oxygen atom or NH; B.sub.1 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group, Q is benzyl, or C.sub.6 -C.sub.20 alkyl, and X.sub.1.sup.- is an anionic counterion.

Abstract: The present invention provides a process for polymerizing diallyldialkyl ammonium compounds to produce polymers with increased molecular weight in which the polymerization is carried out in an aqueous medium containing an inorganic salt and a water soluble free radical initiator that does not react with the inorganic salt or the halide counterion of the diallyldialkyl ammonium halide compound to form a chain transfer or chain terminating agent.

Abstract: A method for concentrating coal tailings which comprises steps of: feeding the coal tailings to a thickener; treating the coal tailings with a hydrophobic polyelectrolyte copolymer coagulant which comprises diallyldimethylammonium chloride and a more hydrophobic monomer, the coagulant is added to the coal tailings in an amount between about 0.05 to about 0.25 lb/ton; treating the coal tailings with a flocculant in an amount between about 0.05 to about 0.25 lb/ton; discharging substantially concentrated tailing; and withdrawing substantially clarified liquid from the thickener.

Abstract: An aqueous dispersion of a fluorescent pigment comprising: a water insoluble polymer; fluorescent dye; emulsifiers; and water. The polymer comprises: a water insoluble vinyl monomer free of polar groups; vinyl nitrile; a vinyl monomer containing sulfonate groups; and a polar vinyl monomer from the group consisting of: polar acrylate esters; vinyl acetate; polar methacrylate esters and a substituted acrylamide containing hydroxyl or carboxylic ester groups. The invention also relates to a fluorescent pigment and method for preparing the dispersion and pigment.

Abstract: The present invention provides a process for polymerizing diallyldialkyl ammonium compounds to produce polymers with increased molecular weight in which the polymerization is carried out in an aqueous medium containing an inorganic salt and a water soluble free radical initiator that does not react with the inorganic salt or a counterion of the diallyldialkyl ammonium compound to form a chain transfer or chain terminating agent.

Abstract: An aqueous emulsion of a resin which contains a fluorescent dye comprising:______________________________________ INGREDIENTS % BY WEIGHT ______________________________________ A water insoluble 25-50 tetra polymer Fluorescent Dye .1-10 Anionic Emulsifier .2-10 Water Balance ______________________________________with the tetra polymer comprising: ______________________________________ INGREDIENTS % BY WEIGHT ______________________________________ A. A water insoluble vinyl 52-65 monomer free of polar groups. B. Acrylonitrile 25-35 C. A vinyl monomer containing 1.5-4.5 sulfonate groups. D. A polar vinyl 5-15 monomer from the group con- sisting of: 1. Polar acrylate esters 2. Vinyl acetate 3.

Abstract: Improved water absorbent polymers can be prepared by agglomerating acrylic acid gel polymer fines with small quantities of difunctional epoxides.

Abstract: A water-in-oil suspension polymerization process of the type comprising a process for preparing a water-insoluble polymer capable of absorbing water, aqueous salt solutions and blood, which utilizes as the suspending agent a cellulose ester or ether protective colloid, the improvement which comprises using as the protective colloid an oil-soluble, water-insoluble, polymeric surfactant instead of the cellulose derivatives, in an amount sufficient to stabilize the emulsion, said polymeric surfactant having the formula: ##STR1## wherein x is a whole number greater than about 5, the mole ratio of a:b is from 3:1 to 1:3, provided the HLB number is maintained at less than about 14, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen, alkyl (C.sub.1-16), aryl (C.sub.6-12), alkaryl (C.sub.7-12), and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are such that the surfactant is oil-soluble and water-insoluble.

Abstract: A vinyl polymer containing at least 1 mole percent of N-acetoacetylacrylamide monomer.

Abstract: Improved acrylic acid absorbency resins are made utilizing a chain transfer agent during the polymerization process.