Abstract: Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the weight average molecular weight of the dispersed polymer is in a specified narrow range. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.

Abstract: Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the radical polymerization is performed in presence of a metal scavenger system comprising a metal scavenger and an acid. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.

Abstract: Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein step of subjecting the monomer composition is performed under controlled adiabatic conditions. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.

Abstract: Methods for manufacturing a polymer dispersion, polymer dispersions, and their use are provided herein. The methods of manufacturing the polymer dispersion comprise the steps of providing a reaction mixture in an aqueous medium comprising a polymeric dispersant and a monomer composition comprising radically polymerizable monomers, and subjecting the monomer composition in the reaction mixture to a radical polymerization to synthesize a dispersed polymer so as to form the polymer dispersion, wherein the ratio of the polymeric dispersant to the dispersed polymer in the polymer dispersion is in a specified narrow range. These polymer dispersions are designated as water-in-water (w/w) polymer dispersions.

Abstract: The present disclosure generally relates to dewatering aqueous sludge that is produced by waste water or sewage treatment facilities such as from municipal and industrial processes. The method includes treating an aqueous sludge with a cationic polyacrylamide terpolymer that includes an acrylamide; a first cationic monomer and a second cationic monomer that is different from the first monomer, and dewatering the treated aqueous sludge.

Abstract: Provided is a method of dewatering aqueous sludge that is produced by waste water or sewage treatment facilities, such as from industrial and municipal processes. The method includes treating an aqueous sludge with an associative and branching or cross-linked inverse emulsion cationic polymer, wherein the associative properties of the cationic polymer are provided by an emulsification surfactant(s) chosen from diblock and triblock polymeric surfactants and/or cross-linking agents.

Abstract: A method of producing a polymerized product through an inverse emulsion polymerization reaction. The current method includes introducing an ultraviolet (UV) light sensitive initiator into an inverse emulsion monomer formulation comprising monomers and irradiating the monomer formulation with an UV light source. A polymerized product is formed from polymerization of the monomers in the presence of the irradiated UV light sensitive initiator.

Abstract: The current process relates to an adiabatic gel polymerization process for the production of water-soluble polyelectrolytes using UV LED modules or a combination of a UV tube light sources and UV LED modules wherein the resulting polymer has increased throughput, lower residual monomer content as well as lower insolubles compared with current photoinitiated polymerization processes.

Abstract: A method of producing a polymerized product through an inverse emulsion polymerization reaction. The current method includes introducing an ultraviolet (UV) light sensitive initiator into an inverse emulsion monomer formulation comprising monomers and irradiating the monomer formulation with an UV light source. A polymerized product is formed from polymerization of the monomers in the presence of the irradiated UV light sensitive initiator.

Abstract: The current process relates to an adiabatic gel polymerization process for the production of water-soluble polyelectrolytes using UV LED modules or a combination of a UV tube light sources and UV LED modules wherein the resulting polymer has increased throughput, lower residual monomer content as well as lower insolubles compared with current photoinitiated polymerization processes.

Abstract: The invention relates to powdery, water-soluble, cationic polymer composition comprising at least two different cationic polymers, namely a first cationic polymer and a second cationic polymer, which differ in chemical nature and molecular weight, as well to a method for producing such powdery, water-soluble, cationic polymer composition, and to its use for promoting flocculation in solid-liquid separation, for example as a retention aid in paper manufacture, and in sludge dewatering/wastewater purification.

Abstract: A process for improving the rheological properties of an aqueous dispersion comprising adding a rheology modifier to the aqueous dispersion, and then adding a water soluble synthetic polymer flocculant to the aqueous dispersion. The rheology modifier may be selected from the group consisting of natural polymers, semi-natural polymers, synthetic materials and combinations thereof. The water soluble synthetic polymer flocculant may be selected from the group consisting of water soluble anionic polymers, cationic polymers, amphoteric polymers, nonionic polymers, and combinations thereof.

Abstract: The invention relates to powdery, water-soluble, cationic polymer composition comprising at least two different cationic polymers, namely a first cationic polymer and a second cationic polymer, which differ in chemical nature and molecular weight, as well to a method for producing such powdery, water-soluble, cationic polymer composition, and to its use for promoting flocculation in solid-liquid separation, for example as a retention aid in paper manufacture, and in sludge dewatering/wastewater purification.

Abstract: A process for improving the flow rate of an aqueous dispersion which comprises adding a natural polymer to said aqueous system and then adding a synthetic polymer to the aqueous system.

Abstract: The invention relates to an aqueous cleansing emulsion comprising a hydrophobic component H1 selected from the group consisting of the following categories: (i) aliphatic C10- or C15-terpene hydrocarbons; (ii) aliphatic C10- or C15-terpenoids; (iii) aliphatic C15-C40-hydrocarbons; and (iv) C6-C30-carboxylic acid C1-C30-alkyl esters. A hydrophobic component H2 selected from the group consisting of the following categories: (iii) aliphatic C15-C40-hydrocarbons; (iv) C6-C30-carboxylic acid C1-C30-alkyl esters; (v) aliphatic C6-C19-hydrocarbons; (vi) aromatic C10- or C15-terpenoids; (vii) aliphatic or aromatic C20-, C25-, C30- or C35-terpenoids; (viii) essential, animal or vegetable oils; and (ix) silicon oils. Furthermore, the emulsion contains an emulsifier E1 having a HLB value of 4±2; an emulsifier E2 having a HLB value of 9±2; and optionally, an emulsifier E3 having an HLB value of 16±4.

Abstract: A process for improving the rheological properties of an aqueous dispersion comprising adding a rheology modifier to the aqueous dispersion, and then adding a water soluble synthetic polymer flocculant to the aqueous dispersion. The rheology modifier may be selected from the group consisting of natural polymers, semi-natural polymers, synthetic materials and combinations thereof. The water soluble synthetic polymer flocculant may be selected from the group consisting of water soluble anionic polymers, cationic polymers, amphoteric polymers, nonionic polymers, and combinations thereof.

Abstract: A process for improving the flow rate of an aqueous dispersion which comprises adding a natural polymer to said aqueous system and then adding a synthetic polymer to the aqueous system.

Abstract: The invention relates to novel, stable bi-molecular cationic inverse emulsion polymers (W/O) with both different molecular weights and cationic activities that are assembled via an “in situ” emulsion polymerization of a high molecular weight cationic polymer in the presence of a low molecular weight polymer in the aqueous phase. The low molecular cationic polymer is produced in a pre-polymerization in solution. The novel, stable cationic water-in-oil emulsion is easy invertible and useful as flocculant, dewatering aid and retention aid in papermaking.

Abstract: The invention relates to water-in-water polymer dispersions containing cross-linked cationic polymers, methods for their preparation and their use. The water-in-water polymer dispersions are useful inter alia as flocculants, dewatering (drainage) aids and retention aids in papermaking.

Abstract: The invention relates to an aqueous cleansing emulsion comprising a hydrophobic component H1 selected from the group consisting of the following categories: (i) aliphatic C10- or C15-terpene hydrocarbons; (ii) aliphatic C10- or C15-terpenoids; (iii) aliphatic C15-C40-hydrocarbons; and (iv) C6-C30-carboxylic acid C1-C30-alkyl esters. A hydrophobic component H2 selected from the group consisting of the following categories: (iii) aliphatic C15-C40-hydrocarbons; (iv) C6-C30-carboxylic acid C1-C30-alkyl esters; (v) aliphatic C6-C19-hydrocarbons; (vi) aromatic C10- or C15-terpenoids; (vii) aliphatic or aromatic C20-, C25-, C30- or C35-terpenoids; (viii) essential, animal or vegetable oils; and (ix) silicon oils. Furthermore, the emulsion contains an emulsifier E1 having a HLB value of 4±2; an emulsifier E2 having a HLB value of 9±2; and optionally, an emulsifier E3 having an HLB value of 16±4.