Abstract: An aqueous drilling fluid used in drilling wells through subterranean formations having a pH of between about 7 and about 12 and a viscosity of from about 20 to about 80 sec (Marsch cone) which is prepared by admixing fresh water, brine or seawater with about 0.02 lb to about 2.5 lb per barrel, based on polymer actives, of one or more anionic dispersion polymers, wherein the anionic dispersion polymers are composed of about 2 to about 98 mole percent of one or more anionic monomers and from about 98 to about 2 mole percent of one or more nonionic monomers and wherein the anionic dispersion polymers have a RSV of from about 10 to about 50 dL/g, a method of drilling a well bore through a subterranean formation and a method of viscosifying an aqueous drilling fluid.

Abstract: This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred, and to use of the water-soluble cross-linked polymers as flocculating agents.

Abstract: A cosmetically acceptable composition for treating hair, skin and nails comprising from about 0.001 to about 25 weight percent, based on polymer solids, of a stable dispersion in an aqueous salt solution of a cationic, anionic or nonionic polymer having a weight average molecular weight of from about 10,000 to about 50,000,000 and a method of treating hair, skin or nails are disclosed.

Abstract: An aqueous drilling fluid used in drilling wells through subterranean formations having a pH of between about 7 and about 12 and a viscosity of from about 20 to about 80 sec (Marsch cone) which is prepared by admixing fresh water, brine or seawater with about 0.02 lb to about 2.5 lb per barrel, based on polymer actives, of one or more anionic dispersion polymers, wherein the anionic dispersion polymers are composed of about 2 to about 98 mole percent of one or more anionic monomers and from about 98 to about 2 mole percent of one or more nonionic monomers and wherein the anionic dispersion polymers have a RSV of from about 10 to about 50 dL/g, a method of drilling a well bore through a subterranean formation and a method of viscosifying an aqueous drilling fluid.

Abstract: This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred, and to use of the water-soluble cross-linked polymers as flocculating agents.

Abstract: A cosmetically acceptable composition for treating hair, skin and nails comprising from about 0.001 to about 25 weight percent, based on polymer solids, of a stable dispersion in an aqueous salt solution of a cationic, anionic or nonionic polymer having a weight average molecular weight of from about 10,000 to about 50,000,000 and a method of treating hair, skin or nails are disclosed.

Abstract: This invention is directed to a method of improving retention and drainage performance in a papermaking process comprising adding to the furnish an effective amount of a low molecular weight water-soluble cationic dispersion polymer prepared by polymerizing one or more cationic monomers and one or more nonionic monomers and one or more chain transfer agents under free radical forming conditions in an aqueous solution of an anionic salt in the presence of a stabilizer polymer, wherein the cationic dispersion has a cationic charge of from about 10 mole percent to about 80 mole percent and an RSV of from about 0.2 dl/g to about 6 dl/g.

Abstract: This invention is directed to a method of clarifying water comprising adding to the water an effective clarifying amount of a low molecular weight water-soluble cationic dispersion polymer prepared by polymerizing one or more cationic monomers and one or more nonionic monomers and one or more chain transfer agents under free radical forming conditions in an aqueous solution of an anionic salt in the presence of a stabilizer polymer, wherein the cationic dispersion has a cationic charge of from about 1.0 mole percent to about 75 mole percent and an RSV of from about 0.2 dl/g to about 6 dl/g.

Abstract: This invention is directed to a method of dewatering animal farm waste water comprising: (1) adding an effective amount of a cationic dispersion polymer having an RSV of at least 24, the dispersion polymer prepared by polymerizing under free radical forming conditions in an aqueous solution of a water-soluble salt in the presence of one or more particle stabilizing polymers (i) from about 20 to about 90 mole percent nonionic monomers and (ii) from about 10 to about 80 mole percent of cationic monomers wherein the cationic monomers are selected from at least one hydrophilic cationic monomer and at least one hydrophobic cationic monomer and wherein less than 50 percent of the cationic monomers on a molar basis are hydrophobic monomers, (2) mixing the waste water and the cationic dispersion polymer to form a mixture of water and flocculated solids and (3) separating the flocculated solids from the water.

Abstract: A method is provided for modifying the rheology of a slurry of a mineral-containing solid material and water by adding a low molecular weight sulfonate-containing polymer to the slurry. The polymer preferably comprises acrylamide, acrylic acid and acrylamidomethyl sulfonate. The inventive method has applications in the nickel ore, cobalt ore, precious metals ore, copper ore, taconite, mineral sands, coal and bauxite industries.

Abstract: The invention provides novel cationic flocculant dispersion polymers that can be utilized in the methods disclosed herein. This invention also provides methods for detecting cationic flocculants wherein said flocculants may be made via a dispersion process, a latex process or a dry polymer process. The flocculants are used to flocculate solids from liquid components of an industrial food process. The detection method involves the use of monoclonal antibodies to determine the presence or concentration of the cationic flocculants in the liquids.

Abstract: The invention is a method for clarifying, dewatering or improving retention and drainage of industrial waste water or paper furnish with an effective amount of at least one dispersion of a water soluble cationic polymer flocculant wherein the improvement comprises the addition of said polymer which has a concentration of at least twenty five percent to said waste water or paper furnish. The industrial waste is preferably food processing waste water, oily waste water, paper mill waste water and inorganic contaminated waste water. The paper furnish may be an aqueous cellulosic suspension.