Abstract: A method of encapsulating an active comprising preparing a first mixture comprising the active, a compound that functions as a Michael donor, and a compound that functions as a Michael acceptor, preparing a second mixture comprising water and an emulsifier; preparing a reaction mixture by combining the first mixture, the second mixture, and a compound that functions as a Michael catalyst; agitating the reaction mixture; wherein the active has a water solubility of at most 0.5% (w/w) at 25° C.

Abstract: Disclosed are aqueous emulsion copolymerization processes for synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit. The copolymerization process is performed at temperatures of from about 55° C. to about 70° C. with at least one water soluble radical initiator, with preferred initiators including Na2S2O8, K2S2O8, (NH4)2S2O8, Fe2(S2O8)3, K2S2O8/FeSO4, (NH4)2S2O8/Fe2O4, and the like, as well as combinations thereof.

Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.

Abstract: A dispersion stabilizer for suspension polymerization of vinyl compounds comprising a vinyl alcohol polymer (A) which has a saponification degree of 30 mol % or more and less than 60 mol % and a viscosity-average polymerization degree (P) of more than 200 and less than 600, and has a terminal alkyl group having 6 to 18 carbon atoms, and in which a content of monomer units having an oxyalkylene group is 0.3 mol % or less and the relationship between the viscosity-average polymerization degree (P) and a modification rate (S) (mol %) of the alkyl group satisfies Formula (1). Thus, there can be provided a dispersion stabilizer for suspension polymerization with which, during suspension polymerization of vinyl compounds including vinyl chloride, even when it is used in a small amount, the absorbency of a plasticizer is high, resulting in easy processing and formation of coarse particles is little and the remaining monomer components can be easily removed. 50?S×P/1.

Abstract: Disclosed is a low VOC coating additive employing a water-dispersible polymer, a water insoluble plasticizer, cyclohexanedimethanol, and optionally an amphiphilic component. The additive can be added to a coating to improve at least one performance characteristics of the coating, such as, wet-edge time, open time, scrub resistance, wet adhesion, and water resistance.

Abstract: To provide a method for producing polymer particles from an acrylamide monomer by a normal phase suspension polymerization method, polymer particles, a packing material for a chromatography column using the particles, and a chromatography column. A method for producing polymer particles, comprising dispersing a monomer composition comprising a multifunctional monomer having a plurality of N-substituted acrylamide groups in an aqueous medium; and polymerizing the dispersed monomer composition.

Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.

Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.

Abstract: Polymeric particles are provided that have pores (i.e., free volume or voids). The polymeric particles can be used to store or deliver active agents that are adsorbed in the pores of the polymeric particles. In many embodiments, the active agents are hydrophobic. Reaction mixtures and methods of forming the polymeric particles from the reaction mixtures are also provided.

Abstract: A process for preparing a polymer in the form of an aqueous dispersion or a water-redispersible powder includes free-radically initiated heterophase polymerization of one or more ethylenically unsaturated monomers and optionally subsequent drying of the polymer dispersions obtained, wherein the polymerization is performed in a jet loop reactor.

Abstract: Disclosed is a water-absorbent resin particle in which the water-absorption rate of physiological saline is 1 second to 15 seconds, the median particle size is 100 ?m to 600 ?m, and the residual volatile component content is 1.5% by weight or less.

Abstract: The present invention provides a water-absorbent resin produced by a reversed-phase suspension polymerization method, which contains a small amount of a petroleum hydrocarbon dispersion medium remaining therein used in reversed-phase suspension polymerization, and thus reducing an odor originating from the petroleum hydrocarbon dispersion medium, when the water-absorbent resin absorbs water, and also which is suitable for use in hygienic materials; an absorbent material and an absorbent article. More particularly, the present invention provides a water-absorbent resin obtained by subjecting an aqueous solution of a water-soluble ethylenically unsaturated monomer to reversed-phase suspension polymerization in a petroleum hydrocarbon dispersion medium in the presence of a surfactant, wherein the amount of the petroleum hydrocarbon dispersion medium remaining in the water-absorbent resin is 2,000 ppm or less; and an absorbent material and an absorbent article using the same.

Abstract: Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, (a) from 30 to 60% by weight of at least one optionally substituted styrene, (b) from 1 to 60% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, being used as ethylenically unsaturated monomers and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol being used as the starch, the sum (a)+(b)+(c)+(d) being 100% and being based on the total solids content, and the polymerization being carried out in the presence of at least 0.

Abstract: A method of making polymer particles includes making an aqueous gel reaction mixture; forming an emulsion comprising dispersed aqueous phase micelles of gel reaction mixture in a continuous phase at a temperature less than about 10° C.; and performing a polymerization reaction in the micelles. Further, the emulsion comprises at least one polymerization initiator in the micelles of gel reaction mixture. The gel reaction mixture can be maintained at a temperature less than about 10° C. when it comprises the polymerization initiator.

Abstract: Providing a process for advantageously producing spherical particles of furfuryl alcohol resin using only furfuryl alcohol without using a harmful aldehyde as a starting material. In the process, furfuryl alcohol is subjected to a self-condensation reaction in the presence of an acid catalyst, whereby a fluidic condensation resin of furfuryl alcohol is obtained. The condensation resin of furfuryl alcohol is granulated and cured using water as a reaction medium in the presence of a dispersion stabilizer and an acid catalyst having a pKa of not more than 1.5, whereby spherical cured resin particles are formed.

Abstract: Biodegradable graft copolymers derived from a carbohydrate and at least one ?,?-unsaturated carboxylic acid derivative having superabsorbent properties are disclosed in addition to the substantially adiabatic polymerization process by which the graft copolymers are made. The methods disclosed can be carried out in a variety of currently available continuous commercial reactors. Polymerizations carried out with starch have surprisingly produced substantially quantitative yields of graft copolymer free of residual monomer produced as a moist copolymer. Product work-up typically involves an optional neutralization and drying.

Abstract: Object An object of the present invention is to provide a process for producing a water-absorbent resin by employing a reversed suspension polymerization method, by which a water-absorbent resin having a small particle size and a narrow particle size distribution can be produced. Means for Achieving the Object A process for producing a water-absorbent resin comprising subjecting a water-soluble ethylenically unsaturated monomer to a reversed phase suspension polymerization in a petroleum hydrocarbon dispersion medium containing a surfactant and a polymeric dispersion agent, wherein the polymeric dispersion agent is a polymeric protective colloid having a weight average molecular weight (Mw) of 2,000 to 15,000 and a molecular weight distribution (Mw/number average molecular weight (Mn)) of 3 to 50.

Abstract: A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and preferred cationic surfactants are volatile in coating or film casting operations involving drying and sintering of the dispersion.

Abstract: The present invention relates to a process for the production of polyvinyl chloride (PVC) having a median grain size of from 10 to 80 ?m by suspension polymerization of vinyl chloride, the process comprising the following process steps: (a) introduction of water, initiator(s), optionally one or more further adjuvants, and some of the vinyl chloride into a container as initial charge and mixing of the constituents; (b) dispersion, and addition of one or more suspension auxiliaries with continued dispersion; (c) heating of the mixture; (d) addition of the remaining vinyl chloride; and (e) working-up of the product.

Abstract: The invention provides a process for preparing vinyl acetate-ethylene copolymers by means of free-radically initiated emulsion polymerization of vinyl acetate and 18% to 34% by weight of ethylene, based on the total weight of the vinyl acetate and ethylene monomers, and, optionally, further comonomers, characterized in that polymerization takes place in the presence of at least one protective colloid and of 0.

Abstract: Hybrid copolymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: The present invention relates to an antireflective composition comprising a polymer, a thermal acid generator and optionally a crosslinking agent, where the polymer comprises at least one hydrophobic unit (1), at least one chromophore unit (2), at least one unit with a crosslinking site (3) and optionally a unit capable of crosslinking the polymer, where, R1 to R8 are independently selected from hydrogen and C1-C4 alkyl, W1 is a fully or partially fluorinated alkylene group, X is selected from F, H and OH; W2 comprises a chromophore group, and W3 Y comprises a crosslinking site. The invention also relates to a process for using the antireflective coating composition.

Abstract: Methods for removing safrole from a sample, molecular imprinted copolymers that bind safrole, and methods of making the same are provided.

Abstract: Hybrid copolymers for use as anti-scalant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: The invention relates to a polyHIPE material provided with high mechanical strength, which material comprises at least one N-alkenyltriazole monomer and a cross-linking monomer in a weight ratio of cross-linking monomer/N-alkenyltriazole monomer of 1/100 to 60/100. It also relates to a process and an emulsion allowing this emulsion to be prepared, and to an article formed in whole or in part of this material, and notably a catalyst support for heterogeneous catalysis, a particle filter, metal ion adsorbent, or gas sensor.

Abstract: A process for the polymerization of allylamine and its subsequent crosslinking in the presence of a dispersing agent.

Abstract: Hybrid copolymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: The present invention provides a lubricant composition for hot forming which makes it possible to provide lubricity at 80° C. or more without being peeled or washed by the roll cooling water, and which is easily washed under 40° C. without having water resistance. The lubricant composition for hot forming of the present invention comprises: a solid lubricant from 10 to 40% by mass; water-dispersible synthetic resin from 5 to 20% by mass; inorganic acid amine salt from 0.5 to 5% by mass; and water from 45 to 80% by mass.

Abstract: The present invention provides a method of preparing vinyl chloride polymer having excellent processability and high bulk density by the separate stepwise additions of vinyl chloride monomer during suspension polymerization.

Abstract: The present invention describes the synthesis of solvent soluble copolymers containing multiple unsaturations. These copolymers contain reactive vinyl groups, which can be further reacted in a second stage polymerization. The process involves copolymerization of a vinyl monomer with an inclusion complex of a monomer having multiple unsaturations and a cyclic macromolecular compound to yield soluble polymers. These polymers may be cast into films, membranes or may be converted in micro or nanoparticles and then crosslinked in a second step polymerization.

Abstract: The methods for producing macromolecule identifying polymers according to the present invention comprise the steps of polymerizing a starting monomer in an aqueous solution in the presence of a macromolecule, a crosslinking agent, and a radical polymerization initiator to produce a polymer containing the macromolecule in its interior; and removing the macromolecule from the polymer containing the macromolecule to thereby produce the macromolecule identifying polymer having a molecular imprint of the macromolecule. In this method, the crosslinker has a solubility in water at 25° C. of 100% by mass or higher.

Abstract: A method for polymerizing, in an aqueous medium, at least one fluorinated monomer in the presence of a non-copolymerizable, non-fluorinated surfactant. The surfactant is generally selected from a non-ionic surfactant, a primary anionic surfactant, or a combination thereof. Fluorinated surfactants are not utilized. The resulting partially fluorinated polymer in the aqueous medium is either a semi-crystalline polymer or a crystalline polymer.

Abstract: The present invention relates to molecularly imprinted polymers, methods for their preparation and use of said molecularly imprinted polymers in separation, chemical sensors, drug screening, catalysis and in regioselective and enantioselective synthesis.

Abstract: Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.

Abstract: An absorbent material formed at least in part of a cross-linked polymer. The absorbent material has a centrifuge retention capacity as determined by a Centrifuge Retention Capacity Test of at least about 20 g/g and a gel bed permeability under load as determined by a Gel Bed Permeability Under Load Test of at least about 300×10?9 cm2 or a free swell gel bed permeability as determined by a Free Swell Gel Bed Permeability Test of at least about 2,500×10?9 cm2. The cross-linked polymer may comprise either at least about 75 weight percent anionic polymer or at least about 75 weight percent cationic polymer. In one embodiment, the cross-linked polymer is surface treated with a water soluble non-cross-linked polymer having a potential for becoming charged opposite that of the cross-linked polymer.

Abstract: Hybrid copolymers for use as anti-scalant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and methylated cyclodextrins. The unsaturated site involved in the formation of the inclusion complex does not take part in the polymerization reaction. After cyclodextrin is recovered, the polymer containing multiple unsaturations can be further polymerized either by thermal and/or photochemical initiators to yield crosslinked polymers.

Abstract: The invention is directed to a microemulsion polymerization comprising adding a polymerization catalyst precursor, such as a transition metal complex in the higher of two accessible oxidation states, an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion. Radically polymerizable monomers and a reducing agent may then be added to the emulsion. The reducing agent converts the catalyst precursor to a catalyst for polymerization of the first monomer from the initiator. In certain embodiments the organic solvent may comprise radically polymerizable monomers. The aqueous solution may comprise a surfactant.

Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.

Abstract: Compositions comprising a cross-linked isocyanurate homopolymer or other cross-linked triazine homopolymers in the form of a microbead that is porous or non-porous; methods of making; and methods of using the compositions are disclosed.

Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.

Abstract: The present invention provides a star polymer which comprises a central core and three or more branches bonded to the central core, and has a weight average molecular weight of from 1,000 to 100,000, wherein at least one of the branches containing at least one repeating unit selected from the group consisting of the following repeating units (1), (2), (3), (4) and (9); and a process for producing the star polymer. The present invention also provides a chemically amplified positive resist composition comprising the star polymer and an acid generator.

Abstract: A terminating agent and a method for preparing an anionic polymer are provided. The terminating agent includes a carbohydrate, which is a solid substantially insoluble in a solvent and is used for terminating an anionic polymerization of a polymer. Another aspect of the method includes steps which provide an initiator for initiating an anionic polymerization, adding a terminating agent for terminating the anionic polymerization and forming a complex, wherein the terminating agent is a carbohydrate, and an alkali metal ion is removed by a solid-liquid separation process.

Abstract: A curable binder composition comprising an emulsion polymer, an extender and a hydryoxyamide.

Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.

Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.

Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.

Abstract: A process is described for producing homo-, co- and block copolymers by controlled radical polymerization in aqueous solution, wherein a monomer component (A) consisting of at least one radically polymerizable monomer, an initiator component (B) consisting of at least one radical initiator, a polysaccharide component (C) consisting of at least one cyclic polysaccharide (derivative) and a regulator component (D) consisting of at least one compound of the general formula (Ia) or/and (Ib) are reacted in the presence of water, in which R1 to R6 can each independently denote hydrogen, an optionally substituted C1–C20 alkyl residue, C3–C8 cycloalkyl residue, C7–C34 aralkyl residue or optionally an aromatic C6–C14 hydrocarbon residue and R2 and R5 can additionally denote polymer residues having an average molecular mass (number average) of 100 to 50,000 Daltons, and at least two but at most four of the residues R1 to R6 represent an aromatic hydrocarbon residue.

Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.

Abstract: Chemically cross-linked polymeric particles are formed using mechanical rather than chemical processes, facilitating production of small-diameter particles in a manner largely independent of the viscosity or density of the polymer. For example, an uncross-linked resin may be provided in particulate form, agglomerated, and compressed into a mass of a desired shape with a desired diameter, and subsequently cross-linked.