Abstract: The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.

Abstract: A dispersion which contains particles of at least one intrinsically conductive polymer, wherein the particle size is on average (weight) less than 1 ?m, and which is characterized in that the dispersant is a liquid at room temperature, and a layer, film or sheet formed from this dispersion has a conductivity of >100 S/cm after removal of the dispersant.

Abstract: The invention further relates to multichromophores, which may be conjugated polymers, and methods, articles and compositions employing them as described herein. In some aspects, the invention relates to methods, articles and compositions for the detection and analysis of biomolecules in a sample. Provided assays include those determining the presence of a target biomolecule in a sample or its relative amount, or the assays may be quantitative or semi-quantitative. The methods can be performed on a substrate. The methods can be performed in an array format on a substrate, which can be a sensor. In some embodiments, detection assays are provided employing sensor biomolecules that do not comprise a fluorophore that can exchange energy with the cationic multichromophore.

Abstract: The disclosed is a biodegradable copolymer, an amphiphilic diblock copolymer, composed of a hydrophilic segment and a hydrophobic segment. The hydrophilic segment is an endcapped PEG or derivatives thereof. The hydrophilic segment is a random polymer polymerized of lactone or cyclic C3-C6 molecule and lactic acid/glycolic acid. There is no coupling agent between the hydrophilic and hydrophobic segments, and the biodegradable copolymer is formed by one-pot ring-opening polymerization. The biodegradable copolymer can be dissolved in water to form a thermosensitive material having a phase transfer temperature of 25 to 50° C., thereby being applied to biological activity factor delivery, tissue engineering, cell culture and biological glue.

Abstract: The present invention relates to a method of producing polymer dispersions having improved freeze-thaw stability, by adding a highly branched polymer to said dispersions, and also to the use of highly branched polymers for this purpose.

Abstract: The present invention is drawn to an aqueous emulsion composition. The composition includes an aqueous phase and a hydrophobic phase dispersed in the aqueous phase, which includes a plurality of hydrophobic monomers. The monomers are acid-functionalized and hydrophobic, with less than 10% solubility in water. In one aspect, the monomers can be aromatic. Such monomers can be polymerized with other monomers to form latex particulates. A latex can include latex particulates dispersed in an aqueous fluid medium. In one embodiment, latex particulates can include from about 0.1 wt % to about 25 wt % of polymerized hydrophobic acid-functionalized monomer, and at least one other polymerized film-forming monomer. The latex can be formulated as an ink-jet ink.

Abstract: The present invention relates to a method of producing a dispersion comprising a) mixing an aqueous dispersion of silanised colloidal silica particles with at least one organic compound containing at least two hydroxyl groups to provide an aqueous dispersion of silanised colloidal silica particles and said at least one organic compound, wherein the mixing is performed in the substantial absence of any monofunctional alcohol b) withdrawing water from the formed aqueous dispersion until the remainder of water in the dispersion is below about 10 wt %. The invention also relates to a dispersion obtainable therefrom and the use of the dispersion.

Abstract: An aqueous dispersion of polymeric particles and process for forming thereof is provided. The particles comprise a first polymer comprising, when dry, at least one void; and, substantially encapsulating the first polymer, at least one second polymer comprising, as polymerized units, at least one ethylenically unsaturated monomer.

Abstract: A method of curing a coating composition and a method of forming a cured coating on an automobile component are provided. The coating composition comprises a radical polymerizable compound and an organoborane-amine complex having an organoborane initiator, an amine blocking agent, and water. The method of curing the coating composition comprises the steps of combining the organoborane-amine complex, the radical polymerizable compound, and water to form the coating composition. Carbon dioxide is introduced into the coating composition or into a composition including at least one of the organoborane-amine complex, the radical polymerizable compound, and water prior to forming the coating composition. Carbonic acid is formed in situ within the coating composition through reaction of the water and carbon dioxide. The organoborane-amine complex is de-complexed with the carbonic acid thereby separating the organoborane initiator and the amine blocking agent.

Abstract: Disclosed are waterborne, radiation-curable coating compositions. These coating compositions include a water-dispersible polymer and a hydrophobic multi-functional ethylenically unsaturated compound. The compositions are characterized by being viscosity stable at elevated temperatures and alkaline conditions.

Abstract: A polymer network, comprises an interfacially polymerized reaction product derived from a surfactant monomer.

Abstract: The present invention relates to a process for preparing aqueous dispersions. The invention also relates to the formation of core-shell particles in aqueous dispersions. The core-shell particles are useful as impact-modifiers for poly(meth)acrylate moulding compositions.

Abstract: The UV-curable aqueous coating composition is characterized by using a UV-curable aqueous emulsion obtained by urethane reaction with a mixture including a poly-carbonate polyol or polyester polyol; an isocyanate compound; a urethane-reactive carboxylic acid; a UV-curable acrylic oligomer having 2 to 9 functional acrylate groups; a UV-curable acrylic monomer; and a urethane-reactive acrylate without an organic solvent. The aqueous composition provides good environmental acceptability and satisfactory film properties comparable to those of the prior oily UV-curable coating composition and, therefore, it is useful for coating various plastics.

Abstract: The present invention relates to a method for producing a porous resin particle having a functional group X, the method including: dissolving a radical polymerizable aromatic monovinyl monomer and a radical polymerizable aromatic divinyl monomer together with a polymerization initiator in an organic solvent to prepare a monomer solution, dispersing the monomer solution in water in the presence of a dispersion stabilizer to obtain a suspension polymerization reaction mixture, and performing a suspension copolymerization while adding, when 0 to 80% of the entire polymerization time of the suspension copolymerization is passed, a mercapto compound represented by the formula (I): HS—R—X??(I) in which R represents an alkylene group having a carbon number of 2 to 12, and the functional group X represents a functional group selected from a hydroxy group and a primary amino group, to the suspension polymerization reaction mixture; and the porous resin particle obtained by the method.

Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.

Abstract: The present invention provides a novel one-step process for preparing an aqueous polymer dispersion by the free radical aqueous emulsion polymerization comprising mixing at least water, a dispersant, and an oil-soluble initiator; raising a temperature from the starting to the end reaction temperature while metering at least ethylenically unsaturated monomers and a water-soluble initiator into a reaction vessel, conducting polymerization of the monomers in the presence of the water-soluble initiator at a temperature up to the end reaction temperature, and when the temperature has reached the end reaction temperature, conducting polymerization by the oil-soluble initiator. The oil-soluble initiator is inactive at the starting reaction temperature and becomes more active as a temperature approaches the end reaction temperature at which the oil-soluble initiator is fully active.

Abstract: A process for producing a solid dispersion comprising a resin and a functional compound dispersed therein, which comprises: kneading a powdery functional compound together with deionized water while gradually introducing the deionized water; adding a resin and, according to need, an additive to the mixture; subsequently heating and kneading the resultant mixture in a vessel which has an atmosphere causing the resin to soften at a temperature not higher than the boiling point of the deionized water and which has been tightly closed according to need so as to function like a pressure cooker to thereby disperse the functional compound into the softened resin; and kneading the resultant dispersion with heating at ordinary pressure or a reduced pressure to remove the water by vaporization.

Abstract: The present disclosure relates to a toner process comprising providing a resin miniemulsion comprising polymeric particles comprising at least one free radical polymerizable monomer compound and at least one alkylene anhydride; blending the miniemulsion with at least one colorant, at least one amine, and optionally at least one wax; heating the resulting mixture below or about equal to the glass transition temperature (Tg) of the resin emulsion; and heating the resulting mixture above or about equal to the glass transition temperature (Tg) of the resin emulsion.

Abstract: Size press compositions and methods for producing sized paper products, including liner board, are disclosed. The size press compositions contain at least one non-reactive cationic surface sizing agent, at least one reactive sizing agent, at least one promoter resin, at least one binder, and water. The at least one non-reactive cationic surface sizing agent may be a polymer in the form of a dispersion, an emulsion or a latex with a positive zeta potential below about pH 6. The at least one reactive sizing agent may be a dispersion, an emulsion or a latex including an alkyl ketene dimer or an alkyl succinic anhydride. The at least one promoter resin may be a polyaminoamide-epichlorohydrin resin or poly (dimethyldiallylammonium chloride).

Abstract: Polymer capsules from amphiphilic graft copolymers comprising reactive, hydrophobic polyolefin backbones, and hydrophilic poly(ethylene glycol) (PEG) grafts are produced by self-assembly of the polymers at the oil-water interface, and crosslinking the assembly with bis-cyclooctene PEG derivatives in conjunction with ring-open metathesis polymerization catalysts. The use of the graft copolymer architecture in capsule synthesis provides significant opportunities to tune both the surface properties, in terms of recognition, and the membrane properties, in terms of mechanical strength, encapsulation, and release.

Abstract: The present disclosure relates to a process for latex preparation comprising a first heating of a latomer mixture comprising at least one free radical polymerizable monomer to low conversion and then adding at least one alkylene anhydride; a second heating of the latomer mixture to low conversion; a third heating of the latomer mixture to form polymeric particles; and combining at least one amine with the polymeric particles.

Abstract: A process for making substantially uniform oligomeric droplets in an aqueous dispersion comprising preparing an aqueous emulsion of an emulsifying agent, at least one monomer, a chain transfer agent, and an initiator; and mixing the aqueous emulsion with a stabilizer and a plurality of seed particles.

Abstract: Polymeric fibers and methods of making the polymeric fibers are described. The polymeric fibers are crosslinked hydrogels or dried hydrogels that are prepared from a precursor composition that contains polymerizable material having an average number of ethylenically unsaturated groups per monomer molecule greater than 1.0. The polymeric fibers can contain an optional active agent.

Abstract: The present invention relates to a composition which is curable by radiation such as an ultraviolet ray or an electron beam. Specifically, the present invention relates to a curable composition which is useful for coatings and inks. The present invention provides a radiation curable composition that is highly cationically polymerizable and highly adhesive to substrates. A radiation curable composition of the present invention includes, as essential ingredients, a cationically polymerizable compound (a) represented by the following general formula 1 (wherein, R represents an alkyl group of 1 to 10 carbon atoms, R1 represents a hydrogen atom or a methyl group, n represents a number from 1 to 4, and m represents a number from 0 to 10); a cationic photoinitiator (b); and water (c).

Abstract: The present invention provides a thermosetting and photocurable coating composition obtained by incorporating a copolymer of a maleimide group-containing monomer with other monomer(s) or a specific maleimide compound into a composition comprising a hydroxyl-containing resin and a curing agent and optionally containing an unsaturated compound; and a method of forming a coating film using the coating composition.

Abstract: The invention further relates to polycationic multichromophores, which may be conjugated polymers, and methods, articles and compositions employing them as described herein. In some aspects, the invention relates to methods, articles and compositions for the detection and analysis of biomolecules in a sample. Provided assays include those determining the presence of a target biomolecule in a sample or its relative amount, or the assays may be quantitative or semi-quantitative. The methods can be performed on a substrate. The methods can be performed in an array format on a substrate, which can be a sensor. In some embodiments, detection assays are provided employing sensor biomolecules that do not comprise a fluorophore that can exchange energy with the cationic multichromophore.

Abstract: The present invention provides a medical adhesive and a medical adhesive tape or sheet superior in the fixing performance, particularly perspiration-resistant fixing, which shows low skin irritation and suitable adhesive strength. The present invention provides a medical adhesive containing a water-dispersed copolymer obtained by copolymerizing 100 parts by weight of a monomer mixture containing (meth)acrylic acid alkyl ester and 0.

Abstract: The present invention is drawn to a surfactant initiator. The surfactant initiator includes a first hydrophilic chemical group bonded to a first hydrophobic chemical group to form a first portion. A second portion is also included, made up of a second hydrophilic chemical group bonded to a second hydrophobic chemical group. A homolytic cleavable group chemically bonds the first and second portions. At least one of the first and second portions is configured to initiate free-radical polymerization upon separation of the homolytic cleavable group. Such surfactant initiators can be used to produce latex particulates and associated suspensions and inks.

Abstract: A pH-sensitive polymer which has cytotoxic or membranolytic properties at pH values below pH 6.5. Carriers for natural or synthetic biomolecules or active pharmaceutical ingredients using such a pH-sensitive polymer.

Abstract: A coated substrate comprises a substrate and a coating on at least one surface of the substrate. The coating comprises a prepolymer, polymer, or resin produced, for example, by the reaction of (i) an isocyanate (e.g., a polyisocyanate), (ii) an active hydrogen-terminated colorant, and optionally (iii) at least one reactant selected from the group consisting of chain extenders, polyols, internal surfactants, and combinations thereof. Polymer dispersions suitable for use in making such coated substrates comprise such a prepolymer, polymer, or resin.

Abstract: The present invention relates to a silicone hydrogel having at least about 20 weight % water, and formed from a reactive mixture comprising at least one non-reactive hydrophilic polymer and at least one symmetric, hydroxyl functionalized silicone monomer. Silicone hydrogels of the present invention may be formed from reaction mixtures which do not contain hydrophilic monomers.

Abstract: Polymer capsules from amphiphilic graft copolymers comprising reactive, hydrophobic polyolefin backbones, and hydrophilic poly(ethylene glycol) (PEG) grafts are produced by self-assembly of the polymers at the oil-water interface, and crosslinking the assembly with bis-cyclooctene PEG derivatives in conjunction with ring-open metathesis polymerization catalysts. The use of the graft copolymer architecture in capsule synthesis provides significant opportunities to tune both the surface properties, in terms of recognition, and the membrane properties, in terms of mechanical strength, encapsulation, and release.

Abstract: An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface includes a backing layer having first and second opposed major surfaces, and at least one edge, an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces, and a barrier inducing treatment on at least an edge surface of the masking article to contact the coating when the coating contacts the edge of the backing layer, thereby causing a barrier to form along the edge of the masking article that impedes the migration of the coating past the edge of the masking article beneath the masking article.

Abstract: A process for preparing an aqueous polymer dispersion using flush water.

Abstract: The invention provides a water resistant molding material that can be stably manufactured while being excellent in water resistance after dried, and a producing method for the water resistant molding material. The water resistant molding material comprises a binder resin containing a polyvinyl alcohol resin, a viscosity control agent, water and a filler, wherein the concentration of acetate ions is adjusted in the range from 500 to 12,000 ppm by blending, for example, an acetate ion controlling agent (such as NH4NO3, NaOH and KCl).

Abstract: Disclosed is a water-soluble, thermally polymerizable oxetane composition essentially comprising a water-soluble oxetane compound and a heteropolyacid. The water-soluble thermally polymerizable oxetane resin composition essentially comprises (A) a water-soluble oxetane compound and (B) at least one heteropolyacid compound selected from heteropolyacids and heteropolyacid salts. The water-soluble oxetane compound may contain one or more oxetane functional groups in the molecule and one or more alcoholic OH groups in the molecule. The heteropolyacids include phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, and silicomolybdic acid and mixtures thereof. The heteropolyacid salts include phosphotungstic acid salts, phosphomolybdic acid salts, silicotungstic acid salts, and silicomolybdic acid salts and mixtures thereof.

Abstract: Provided is a surface treatment method for a water-absorbent resin having excellent production efficiency, absorption capacity against pressure, fluid permeability or the like. Provided is a method for the surface treatment of a water-absorbent resin which comprises a) a step for mixing 0.1 to 20 parts by weight of an acid group-containing radically polymerizable compound and 5 to 20 parts by weight of water, relative to 100 parts by weight of a water-absorbent resin; and b) a step for polymerizing the acid group-containing radically polymerizable compound, wherein neutralization ratio of the acid group-containing radically polymerizable compound is 0 to 60% by mol, and is lower than neutralization ratio of the water-absorbent resin.

Abstract: This invention relates to dispersions and powders of micro gel particles, and more specifically, at least in some instances, dispersions of micro gel particles formed from crosslinked water-soluble or swellable polymers, and methods of preparing such micro gel particle dispersions. In one aspect, the invention provides a method of preparing synthetic micro gel particles, comprising forming a reaction mixture by dissolving or swelling a water-soluble or water-swellable unsaturated monomer, unsaturated crosslinking agent, and radical initiator in a common solvent that is substantially inert toward chain transfer reactions, wherein the monomer and the crosslinking agent polymerize to form crosslinked polymer micro gel particles that are insoluble or at most swellable in the common solvent.

Abstract: Drying is performed in a continuous fluidized bed having at least two drying rooms. Drying is performed after pulverization is performed between drying in a first drying room and drying in a second or subsequent room. Drying is performed in a continuous fluidized bed whose fluidized bed contains a heat transfer tube. The second or subsequent drying room has a higher drying temperature than the first drying room. Drying is performed with the drying temperature of the first drying room falling within a range of not less than 80° C. to not more than 200° C. and with the drying temperature of the second or subsequent drying room falling within a range of not less than 100° C. to not more than 220° C.

Abstract: A filler-containing an organic polymer dispersion is provided. The organic polymer of the dispersion is polymerized in the presence of particles of at least one filler. The ratio of the particle size of the filler particles to the particle size of the polymer particles is in the range of from 1.1:1 to 20:1.

Abstract: A method for removing a fluorinated carboxylic acid or salt thereof from an aqueous liquid by contacting the aqueous liquid with adsorbent particles. The fluorinated carboxylic acid or salt thereof is selected from the group consisting of partially fluorinated carboxylic acids or salts thereof and fully fluorinated carboxylic acids or salts thereof.

Abstract: An admixture comprises an aqueous composition of a) a copolymeric dispersing component, b) an antifoaming agent component, c) a surfactant component, and d) water. The components may be a blend or physically or chemically attached and result in a stable liquid system that can be used as a dispersing agent for a calcium sulfate compound containing construction chemicals composition.

Abstract: The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention.

Abstract: Aqueous polymer dispersions which are obtainable by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of free radical polymerization initiators and stabilizers, amphiphilic polymers which comprise one or more hydrophobic units (A) and one or more hydrophilic units (B) being used as the stabilizer before, during or after the polymerization, and the hydrophobic units (A) being formed from a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged doubled bonds, processes for the preparation of the aqueous polymer dispersions by polymerizing ethylenically unsaturated monomers in the presence of free radical initiators and said amphiphilic polymers, which are used before, during or after the polymerization, and the use of the resulting aqueous polymer dispersions as associative thickeners in paper coating slips, in textile production, as thickeners for textile print pastes, in the pharmaceutical and cosmetics sector, for

Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and fluorosurfactant having the formula (I) RfCH2OCF(CF3)C(O)OM??(I) wherein Rf is a linear or branched perfluoroalkyl group with 2 to 5 carbon atoms, and M is H, NH4, Li, Na, or K.

Abstract: A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), APEI intermediate, and combinations thereof that is used to make the APEI product. The method of treating the composition includes heating a composition that includes an adduct of a conjugate base and PEI, water, and the component at a temperature of from 158 to 338° F. for a period of at least three hours in the absence of additional water in order to substantially decompose the adduct in the composition. The aqueous solutions of APEI product thus made have Gardner color values of less than 6.

Abstract: Proposed is a liquid oligomer composition that contains a hydroxyamine adduct and a liquid reacting oligomer. The hydroxyamine adduct includes an epoxy-amine adduct, which contains at least one primary amine group that is a product of the reaction of an epoxy compound with at least one terminal oxyrane group and at least one amine that contains at least two primary amino groups. In order to form the epoxy-amine adduct, 1 to 15 moles of at least one amine are reacted per equivalent of the aforementioned epoxy compound. The composition also contains at least one compound with one or more terminal cyclocarbonate groups. A method of manufacturing a liquid oligomer composition on the basis of the above compounds is also proposed.

Abstract: The present invention relates to a process for postcrosslinking water-absorbing polymeric particles in the absence of oxidizing gases, to the water-absorbing polymers preparable by the process and to their use in hygiene articles and packaging materials.

Abstract: Polyolefin waxes bearing (meth)acrylate groups, process for preparing them and their use.

Abstract: The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.