Abstract: Provided is Miktoarm star polymers, which are provided either as an aqueous solution or as thin micro-flakes. Also provided is a process of making the star polymers thereof. These polymers bear short polyacrylic segment(s) and long buoyant sulfonated polymer segment(s), which were found to be effective as additives for cement slurry water retention and as a plasticizer.

Abstract: Treated substrates and methods of forming the same are provided. In an exemplary embodiment, a treated substrate includes lignocellulose and a polymer fixed to the lignocellulose to form the treated substrate. The polymer includes a succinic moiety that can reversibly change between a succinic anhydride and a succinic acid moiety. The treated substrate has a wet tensile index of about 3 newton meters per gram or less.

Abstract: The present compositions and methods relate to an interpenetrating polymer network (IPN) composition comprising a two-step polymerization. In a first step, a first inverse water-in-oil emulsion polymer is prepared and wherein a second inverse water-in-oil emulsion is combined with the first inverse water-in-oil emulsion and wherein polymerization of the second inverse water-in-oil emulsion is initiated in-situ with the first inverse water-in-oil emulsion polymer, producing a second inverse water-in-oil emulsion polymer that is physically interlaced or cross-linked with the first inverse water-in-oil emulsion creating an interpenetrating polymer network (IPN) composition.

Abstract: A method of treatment of an aqueous foamable medium, such as a process stream of a pulp and paper mill, the method comprising contacting the aqueous process stream with a defoaming agent comprising: a) at least one C12 to C40 Guerbet alcohol; and/or, b) at least one polyol ester.

Abstract: Heat sensitive recording material, recording sheets formed from heat sensitive recording material, and methods for forming images using heat sensitive recording material are provided. An exemplary heat sensitive recording material includes a color forming compound, a first non-phenolic color developer, and a second non-phenolic color developer.

Abstract: Foam formulations and methods for manufacturing paper products using foam formulations are provided. An exemplary method includes producing a foam of a gas, water, a dry strength agent, and a combination of foaming agents including an anionic sulfated/sulfonated surfactant and a polysorbate-type nonionic surfactant; applying the foam to a web; and processing the web to form the product.

Abstract: An aqueous composition includes water and a cationic polymeric resin having at least one reactive aldehyde group and formed from the reaction of glyoxal and a polymer. The polymer comprises at least one acrylamide repeating unit and at least one cationic repeating unit wherein a number of reactive aldehyde equivalents divided by a number of equivalents of residual glyoxal based on the total weight of the polymer is greater than about 1.2, wherein prior to reaction the polymer has greater than about 50 mole % acrylamide repeat units and from about 2 to about 30 mole % cationic repeating units, wherein greater than about 5 mole % of the acrylamide repeating units are converted to reactive aldehyde groups in the cationic polymer resin; and wherein the composition exhibits a viscosity gain of less than about 200%.

Abstract: A drainage-optimized additive composition for papermaking is disclosed. The composition comprises an aqueous media, a glyoxalated polyacrylamide (GPAM) resin, and an anionic polyacrylamide (APAM) resin. The GPAM resin has a weight average molecular weight (Mw) of at least about 5 MDa and a cationic monomer content of at least about 4 mol %. The APAM resin has a Mw of at least about 0.25 MDa, and an anionic monomer content up to about 25 mol %. A method of preparing the additive composition is also disclosed, and comprises preparing a cationic acrylamide (CPAM) prepolymer having a predetermined cationic monomer, selectively glyoxalating the CPAM prepolymer in aqueous media during glyoxalation to give the GPAM resin, and combining the GPAM and APAM resins. The method may be carried out in situ during a papermaking process (i.e., as an on-site method), and may be implemented in different forms during the process of forming paper.

Abstract: Provided is a method for the removal of salts and by-products from vinylamine-containing polymers. In particular, the method allows the removal of unwanted salts, by-products, spent initiators and short chain vinylamine-containing polymers while retaining the functional, higher molecular weight polymers that provide for desired product performance.

Abstract: An aqueous composition includes water and a cationic polymeric resin having at least one reactive aldehyde group and formed from the reaction of glyoxal and a polymer. The polymer comprises at least one acrylamide repeating unit and at least one cationic repeating unit wherein a number of reactive aldehyde equivalents divided by a number of equivalents of residual glyoxal based on the total weight of the polymer is greater than about 1.2, wherein prior to reaction the polymer has greater than about 50 mole % acrylamide repeat units and from about 2 to about 30 mole % cationic repeating units, wherein greater than about 5 mole % of the acrylamide repeating units are converted to reactive aldehyde groups in the cationic polymer resin; and wherein the composition exhibits a viscosity gain of less than about 200%.

Abstract: In a geothermal plant, alternately injecting an acid composition and a caustic composition removes or inhibits scale build-up.

Abstract: A cationic polyacrylamide (cPAM) and methods of making and using the same are disclosed. The cPAM comprises the radical polymerization reaction product of an acrylamide (AM) monomer, a cationic monomer, and, optionally, one or more additional ethylenically unsaturated monomer(s). A glyoxalated polyacrylamide (gPAM) resin is also disclosed, and comprises the reaction product of a glyoxalation agent and the cationic polyacrylamide (cPAM). An additive composition for papermaking is also disclosed, along with methods of preparing and using the same. The additive composition comprises an aqueous media and the glyoxalated polyacrylamide (gPAM) resin dispersed therein. The preparation methods provide for low product impurities at the cPAM, gPAM, and paper product stages.

Abstract: Compositions and methods that generally relates to treating a substrate and for improving adhesion of an image to a treated substrate and more particularly relates to systems and methods utilizing a combination of a poly tertiary amide, colloidal silica, and optionally a polymeric binder, for treating a substrate and for improving adhesion of an electrographic image to a treated substrate.

Abstract: Methods for producing final polymer A are provided that comprise the following steps: (A) providing a starting polymer V, the starting polymer V being obtainable by radical polymerization of the monomers (i), (ii), (iii), and (iv) as described herein in the amounts provided herein; and (B) hydrolyzing the provided starting polymer V under alkaline conditions to obtain the final polymer A, wherein the N—C(?O)R1 groups of formula (I) at least partially hydrolyze the monomers (i) polymerized into the starting polymer V to form primary amino groups. Certain final polymers A obtained are useful for a method for producing paper or cardboard comprising adding certain final polymers A to a first aqueous pulp suspension, dewatering the obtained second aqueous pulp suspension containing certain final polymers A on a water-permeable substrate to a wet paper structure, and further dewatering of the wet paper structure into a paper or cardboard.

Abstract: A method of suspending elemental sulfur in water includes the steps of providing water including elemental sulfur and hydrogen sulfide and adding from about 1 to about 100 parts by weight of a sulfur suspension additive to the water based on one million parts by weight of the water to suspend the elemental sulfur in the water. The sulfur suspension additive is chosen from an alkyldiphenyloxide disulfonate or salt thereof, a secondary alcohol ethoxylate, a non-ionic ethylene oxide and/or propylene oxide copolymer, and combinations thereof.

Abstract: An aqueous paper barrier coating and methods for improving barrier properties of packaging material are described. The packaging material includes a substrate with coatings to provide a packaging material having tailored moisture vapor transmission, oxygen permeation or transmission, oil and grease resistance, and light properties.

Abstract: This disclosure provides a method of improving gold recovery in a cyanide leaching circuit comprising a gold ore slurry. The method includes the step of providing a gold recovery additive chosen from polyacrylic acid, copolymers of acrylic acid and a sulfonated co-monomer, and combinations thereof, wherein the additive has a weight average molecular weight of from about 500 to about 10,000 g/mol. The method also includes the step of combining the gold recovery additive with the gold ore slurry in the cyanide leaching circuit, wherein the gold recovery additive is present in an amount of from about 10 to about 1000 g per ton of dry gold ore to improve the recovery of gold from the gold ore slurry.

Abstract: A method for digesting lignocellulosic material includes combining a lignocellulosic material comprising lignocellulosic biomass, a polymerized naphthalene sulfonate, a sodium xylene sulfonate, and a white liquor comprising sodium hydroxide and sodium sulfide to form a mixture. Further, the method includes heating the mixture to digest at least a portion of the lignocellulosic material.

Abstract: Provided is an alkyl ketone dimer emulsion and the preparation thereof. More particularly, described is a 3-component emulsion, which is easy to prepare using low emulsification ability—high shear speed capability equipment to prepare the AKD emulsion with excellent quality, high efficiency, and less preparation time.

Abstract: Compositions and methods for minimizing fouling and/or reducing the viscosity of black liquor in a Kraft pulping process are provided. An exemplary composition includes an anionic sulfate or sulfonate surfactant; an anionic sulfate or sulfonate dispersant; and a nonionic alkoxylated surfactant.