Abstract: An organic polymer comprising an organic polymer fragment and at least one S-alkylsilyl hydrocarbonthioate group or at least one S-alkylstannyl hydrocarbonthioate group bonded to the backbone of the organic polymer fragment through a C—Si covalent bond and their methods or production are provided. The organic polymer backbone can be derived from the anionic polymerization of monomers containing C—C unsaturation. The silicon or tin atom can be further bonded to two alkoxy groups, two hydrocarbon groups or to one alkoxy group and one hydrocarbon group.

Abstract: There is provided a vinyl alcohol-based polymer having an olefin in side chain, comprising 0.001 to 10 mol % of a structural unit represented by Formula (1) based on the total amount of structural units, wherein the total carbon number of X, R1, R2, R3 and R4 is 2 or more. The vinyl alcohol-based polymer having an olefin in side chain has excellent storage stability, good solubility in water or an organic solvent even after thermal treatment, and excellent reactivity to high energy beam.

Abstract: This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.

Abstract: A cured product that is reduced in warping and has high hardness can be obtained from an active energy ray-curable resin composition which uses a methacrylic acid ester polymer that has an acid value of 50 mg KOH/g or less and a transition metal content of 1 ppm or less, while containing 80% by mole or more of a polymer that has a double bond-terminated structure represented by formula (1). (In formula (1), R represents an alkyl group, a cycloalkyl group or an aryl group.

Abstract: The present invention provides a method for producing water-absorbent resin particles that has a low stirring load, and can produce water-absorbent resin particles having a particle diameter within a specific range, with high productivity. The method for producing water-absorbent resin particles comprises adding an ethylenically unsaturated monomer all at once to a hydrocarbon dispersion medium mixed with a surfactant to perform reversed phase suspension polymerization, wherein the reversed phase suspension polymerization is performed in one step, or two or more steps, the surfactant is at least one selected from the group consisting of polyoxyethylene alkyl ether phosphates, alkali metal salts of polyoxyethylene alkyl ether phosphates, and alkaline earth metal salts of polyoxyethylene alkyl ether phosphates, and the surfactant has an HLB of 9 to 15.

Abstract: Metal oxide having a surface onto which a multitude of individual polymers are grafted, each polymer comprising an addition polymer having a first and a second end, and a first moiety comprising a terminal phosphonate group, which first moiety is bonded to the first end, which phosphonate group attaches to the metal oxide surface in such a way that the multitude of the grafted polymers comprises at least one group of adjacent polymers that have a stretched chain conformation wherein the adjacent stretched chains have a substantially parallel orientation, such that the polymers within said group together form a brush structure. Method of grafting a multitude of individual polymers onto a surface of a metal oxide.

Abstract: The present invention relates to a method of preparing a vinyl chloride-based polymer, and more specifically, to a method comprising the steps of, (S1) preparing a mixture in which a first protective colloid auxiliary agent and a chain regulator are mixed; (S2) preparing a second protective colloid auxiliary agent including the chain regulator activated by stirring the mixture prepared in step (S1); and (S3) performing polymerization by adding a vinyl chloride-based monomer and a polymerization initiator in the presence of the second protective colloid auxiliary agent prepared in step (S2).

Abstract: A fast-bonding and long-lasting adhesive composition with a high viscosity for attaching eyelash/hair extension systems to human eyelash/hair, comprising: a cyanoacrylate monomer having a straight alkyl chain length of from 4 to 16 carbon atoms; an organic polymer thickening agent; an inorganic thickening agent; and a bonding accelerator, wherein the inorganic thickening agent does not separate from the composition.

Abstract: The invention relates to polymer particles in the form of filaments formed by block copolymers, as well as to the method for preparing same by means of controlled radical polymerization in emulsion in the presence of a specific living macroinitiator derived from a nitroxide. The invention is characterized in that the filamentous particles are obtained in a dispersed aqueous medium by means of the synthesis of said block copolymers, performed by heating the reaction medium at a temperature of 60 to 120° C., the final block copolymer containing between 10 and 50 mol. % of the macroinitiator which is water soluble and the hydrophobic monomer conversion rate being at least 50%. According to the invention, the weight ratio of hydrophilic fraction of the filamentous particles is less than 25 wt %.

Abstract: The present invention provides a one-part dental adhesive that exhibits excellent adhesive properties to both enamel and dentin and that has high storage stability and ambient-light stability. The present invention is a one-part dental adhesive including 1 to 30 weight % of a phosphoric acid group-containing monofunctional (meth)acrylate compound (a), 10 to 50 weight % of a water-soluble polymerizable monomer (b), 5 to 50 weight % of a hydrophobic crosslinkable (meth)acrylate compound (c), water (d), and a polymerization initiator (e). The water-soluble polymerizable monomer (b) includes a combination of a monofunctional (meth)acrylamide compound (b-1) having a particular structure and a water-soluble crosslinkable (meth)acrylic monomer (b-2). The weight ratio between the monofunctional (meth)acrylamide compound (b-1) and the water-soluble crosslinkable (meth)acrylic monomer (b-2) is 10:1 to 1:5.

Abstract: A compound has formula (I): wherein in formula (I), Z is a y valent C1-20 organic group, A1 and A2 are each independently ester containing or non-ester containing and are fluorinated or non-fluorinated, and are independently C1-40 alkylene, C3-40 cycloalkylene, C6-40 arylene, or C7-40 aralkylene, and A1 contains a nitrile, ester, or aryl substituent group alpha to the point of attachment with sulfur, L is a heteroatom or a single bond, X1 is a single bond, —O—, —S—, —C(?O)—O—, —O—C(?O)—, —O—C(?O)—O—, —C(?O)—NR—, —NR—C(?O)—, —NR—C(?O)—NR—, —S(?O)2—O—, —O—S(?O)2—O—, —NR—S(?O)2—, or —S(?O)2—NR, wherein R is H, C1-10 alkyl, C3-10 cycloalkyl or C6-10 aryl, Q? is an anionic group, G+ is a metallic or non-metallic cation, and y is an integer from 1 to 6. A polymer having end groups comprising the reaction product of the compound of formula (I), and a method of making a polymer, are also disclosed.

Abstract: A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.

Abstract: An intermediate compound for forming a RAFT agent is provided that can have the formula: where n is an integer from 1 to 20; m is an integer from 0 to 20; R1 is H, an alkyl group, or a cyano group; R2 is H, an alkyl group, or a cyano group; Y is OH, COOH, or NH2; and X is OH, COOH, NH2, a nitrobenzyl, benzyl, or para-methyl benzyl group. A RAFT agent is also provided that comprises a thiocarbonylthio-containing organic compound having a phosphonic end group. A method is also provided for forming a polymer chain on a surface of a nanoparticle utilizing the RAFT agent, along with nanoparticles and nanocomposites formed therefrom.

Abstract: A method of preparing a polymer, the method comprising: metalating an organophosphine compound in the substantial absence of monomer to form a metalated organophosphine; and introducing the metalated organophosphine to monomer including conjugated diene monomer to form a reactive polymer.

Abstract: Disclosed is a method for producing a nitrile rubber comprising adding 0.1 to 5 parts by weight of at least one phosphate emulsifier selected from the group consisting of monoalkyl ether phosphate (MAP) represented by the following Formula 1 and dialkyl ether phosphate (DAP) represented by the following Formula 2, with respect to 100 parts by weight of monomers constituting the nitrile rubber. The method minimizes mold contamination during molding of produced nitrile rubber, eliminates the necessity of any process of removing mold contaminants, improves production efficiency and thus reduces defect rates of final molded articles.

Abstract: The invention relates to a method for producing polyacrylate adhesive compounds with a narrow molar mass distribution by means of a radical polymerization and a subsequent increase of the molar masses by reacting with bis- or multi-dienyl compounds, in particular with ?,?-bis-dienyl compounds, in order to increase the cohesion in particular.

Abstract: A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.

Abstract: Provided is a polymerizable composition for providing a thin image-display device that does not exhibit display problems due to deformation of an image-display unit, allows high-brightness, high-contrast image display, and tolerates heat well. A polymerizable composition for forming a polymer layer interposed between an image-display unit in an image-display device and a light-transmitting protective part. Said polymerizable composition is characterized by containing the following: (1) a (meth)acryloyl group-containing compound that has a structural unit derived from a (poly)ester polyol and/or a structural unit derived from a (poly)carbonate polyol; (2) a (meth)acryloyl group-containing compound that has a C9+ hydrocarbon group; and (3) a photopolymerization initiator.

Abstract: Disclosed is use of catalysts for chain extension and/or cross-linking of oligomers or polymers comprising carbon-carbon triple bonds.

Abstract: The present invention relates to a method for the polymerization in an aqueous medium of monomers, and especially of fluoromonomers, using non-fluorinated surfactants; and the fluoropolymers formed therefrom. Specifically, the method of the polymerization uses one or more non-fluorinated surfactants selected from the group consisting of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid, and salts thereof. Additionally, the use of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid as surfactants in aqueous free radical polymerization is also novel.

Abstract: A random copolymer having a structure represented by the following Formula 1: wherein R is phosphonic acid, Me is a methyl group, x is a number of styrene units, and y is a number of methyl methacrylate units.

Abstract: The present invention relates to an innovative polymerization technique for (meth)acrylates and styrenes, in which the polymerization is initiated by isocyanates and special bases with imine structure and is activated/accelerated by addition of ionic liquids. With this new technique, which can be employed selectively, it is also possible to produce high molecular weight poly(meth)acrylates with in some cases narrow molecular weight distribution. The (meth)acrylate notation here denotes not only methacrylate, such as methyl methacrylate, ethyl methacrylate, etc., but also acrylate, such as methyl acrylate, ethyl acrylate, etc., for example, and also mixtures of both.

Abstract: Disclosed are catalyst compositions having an external electron donor which includes one or more of the following compositions: a phosphite, a phosphonite, a pyrophosphite, and/or a diphosphazane. Ziegler-Natta catalyst compositions containing the present external electron donor exhibit strong activity and produce propylene-based olefins with high isotacticity and high melt flow rate.

Abstract: Provided are compositions comprising a block copolymer of the following formula: [A]-B-[Q], wherein [A] is a polymer that has an affinity for a substrate; B is a linking group comprising an optionally-substituted, polyvalent linking group having a molecular weight of no more than 1000 g/mole; and [Q] comprises a semi-crosslinked, ungelled polymer derived from copolymerization of an ethylenically unsaturated monomer with a poly-functional ethylenically unsaturated monomer. Such block copolymers are cross-linked via the [Q] segment, but not macroscopically gelled. The [Q] segment is hydrophilic and has a degree of polymerization in the range of about 10 to about 10,000. The [A] segment is located on at least one terminal end of said block copolymer, comprises between about 1 and about 200 repeating units. The block copolymer is associated, via the linear substrate associative segment with a surface comprising at least one hydrophobic site, such as a silicone hydrogel.

Abstract: An improved process for polymerization of a fluorinated vinyl monomer to produce a fluorinated polymer is described. The polymerization process comprises the free radical polymerization of a fluorinated vinyl monomer in a biphasic reaction medium, which comprises an ionic liquid containing a fluorinated vinyl monomer and an aqueous solution comprising a water-soluble free radical initiator. The ionic liquid is used to store quantities of the vinyl monomer, due to the high solubility of the vinyl monomer in the ionic liquid, thereby reducing the pressure required for the polymerization.

Abstract: Disclosed are a production process of a dye polymer having a dye content of from 1 to 50 wt %, and the dye polymer and its use. The production process includes subjecting an addition-polymerizable monomer to living radical polymerization by using, as a polymerization initiator, a dye having a polymerization initiating group enabling the living radical polymerization. The dye polymer and a composition of the dye polymer and a pigment are useful as good coloring agents for various products or articles. The colored products or articles are high in transparency, and are provided with high added value. The dye polymer can also be used as a dispersant for pigments, thereby making it possible to afford pigment dispersions excellent in dispersion properties and dispersion stability.

Abstract: The method of making high-density polyethylene with titania-iron nanofillers involves mixing a TiO2/Fe titania-iron nanofiller with a vanadium (III) complex bearing salicylaldiminato ligands polymerization catalyst in a reactor. The reactor is then charged with toluene and heated to a temperature of about 30° C. Following heating, ethylene is fed into the reactor at a fixed pressure, and a methyl aluminum dichloride cocatalyst is added to initiate in situ polymerization. Polymerization is quenched to yield high-density polyethylene with titania-iron nanofillers, which is then washed and dried. Through the addition of a TiO2/Fe nanofiller, the molecular weight, the crystallinity and the melting temperature of high-density polyethylene are all increased, while the polydispersity index (PDI) is decreased.

Abstract: The invention relates to a mono-substituted phosphinic acid and to the use thereof as a regulator in radical polymerization. Such regulators do not result in the formation of poorly soluble salts, and in addition, the polymers produced with the regulators according to the invention are characterized by a uniform polymerization degree having a narrow size distribution. In addition, the invention relates to a method for producing such mono-substituted phosphinic acids.

Abstract: The invention relates to composition-gradient copolymers, comprising: repeat units resulting from the polymerization of at least one first monomer M1, the corresponding homopolymer of which exhibits a glass transition temperature Tg1 of less than 20° C., said repeat units representing from 15 to 40% by weight, with respect to the total weight of the copolymer; repeat units resulting from the polymerization of at least one second monomer M2, the corresponding homopolymer of which exhibits a glass transition temperature Tg2 of greater than 20° C., said repeat units representing from 45% to 65% by weight, with respect to the total weight of the copolymer; hydrophilic repeat units resulting from the polymerization of a least one third monomer M3, said repeat units representing from 10 to 25% by weight, with respect to the total weight of the copolymer.

Abstract: To prepare superabsorbents with a low residual monomer content, a salt of urea with an inorganic acid is added to the monomer mixture before or during the polymerization or to the polymer after the polymerization but before a heat treatment which follows the polymerization.

Abstract: Disclosed is use of catalysts for chain extension and/or cross-linking of oligomers or polymers comprising carbon-carbon triple bonds.

Abstract: Polyester compositions and functionalized polyester compositions are provided along with methods of making the compositions as well as methods of using the compositions, for example as a tissue engineering bioscaffold and as a drug-delivery vehicle.

Abstract: The invention relates to an improved process for preparing alkoxyamines resulting from ?-phosphorated nitroxides corresponding to the formula (I): by reaction with a halogenated derivative in the presence of an organometallic system. This process comprises carrying out the reaction in a water-miscible organic solvent and precipitating the alkoxyamine directly from the organic medium by adding an aqueous solution of a strong acid. These alkoxyamines can be used in particular as radical polymerizations initiators.

Abstract: Norbornene monomers with epoxy groups and polymer materials thereof are disclosed. The Norbornene monomers with epoxy groups are prepared by Diels-Alder reaction. The Norbornene monomers with epoxy groups are highly active for ring-opening-metathesis polymerization (ROMP), and the molecular weight and PDI value of the obtained polymers are controllable.

Abstract: The present invention relates to an improvement for gas-phase olefin polymerization process having relatively high bed bulk density. The improvement involves the use of mixed external electron donors when polymerizing propylene in a gas-phase reactor having a polymer bed with a bulk density greater than 128 kg/m3, optionally with one or more comonomers, wherein the mixed electron donor system comprises at least a first external electron donor and a second external electron donor, and wherein the first external electron donor is a carboxylate compound.

Abstract: Composition which contains polymerizable binder and an initiator according to the following Formula I: R1—X—O—O—[Y—O—O—-]nR2??(Formula I) and having a large through-curing depth and a sufficiently long processing time and which cures without the development of high temperatures.

Abstract: The present invention relates to isoolefin polymers and process for preparing the same. The present invention especially discloses a polymerization process for the cationic polymerization of isoolefin monomers in an aqueous reaction medium, and isoolefin polymers obtained by such process. In one embodiment, the present invention relates to a polymerization process for the cationic polymerization of isoolefin monomers in an aqueous reaction medium, and isoolefin polymers obtained therefrom. In another embodiment, the present invention relates to a dispersion polymerization process for the cationic copolymerization of isoolefins with conjugated or non-conjugated diolefins and/or vinyl aromatic compounds, and copolymers obtained therefrom.

Abstract: Preparation of homo- or copolymers, especially of high-reactivity isobutene homo- or copolymers with a number-average molecular weight Mn of 400 to 1 000 000, by polymerizing one or more ethylenically unsaturated monomers in the liquid phase in the presence of a dissolved, dispersed or supported catalyst complex based on a protic acid compound obtainable by reacting a reactive inorganic or organic pentavalent phosphorus compound with three equivalents of an organic alpha,beta-dihydroxy compound, for example a tris(oxalato)- or tris(ortho-phenylenedioxy)phosphoric acid stabilized by a dialkyl ether.

Abstract: A polysiloxane includes a structural unit in which a functional group represented by a general formula of (in the formula, each of R1, R2, and R3 is independently an alkyl group with a carbon number of 1 or more and 6 or less and m is an integer of 2 or more and 6 or less), an ester bond or an amide bond, a spacer, and a silicon atom are bonded sequentially.

Abstract: Provided is a low-cost, highly active, environmentally friendly living radical polymerization catalyst which does not require a radical initiator. An organic compound having an oxidation-reduction capability is used as a catalyst. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced. It is made possible to prevent adverse effects of using a radical initiator. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), etc.

Abstract: The present invention is directed to a UV curable coating composition, which includes one or more monomers, one or more multifunctional oligomers, one or more pigments, one or more photoinitiators, and volatile organic solvent. The coating composition can be used as a primer in repairing and refinishing automobiles. The coating composition provides short drying times and a cured coating that does not need to be wiped. A method of applying the coating composition is also provided.

Abstract: The object of the present invention is to provide an active energy ray-curable ink-jet printing ink, including: a coloring agent; a compound having an ethylenic double bond; and a photo-polymerization initiator, wherein the photo-polymerization initiator includes a compound represented by general formula (1): (wherein A represents any one of —O—, —CH2—, —CH(CH3)—, and —C(CH3)2—; and each of R1 and R2 independently represents a hydrogen atom, a methyl group, or a trimethylsilyl group), and an ?-aminoketone-based compound and/or an acyl phosphine oxide-based compound, and 40% by mass or more of the compound represented by general formula (1) is included with respect to the total photo-polymerization initiator.

Abstract: A process for producing copolymers of (meth)acrylates:(meth)acrylic acid amine complexes useful for hard surfaces having increased performance for stain resistance, oil and water repellency properties.

Abstract: Process for preparing an aqueous polymer composition using water-soluble free radical chain regulators.

Abstract: The present invention relates to a method for the polymerization of fluoromonomers using non-fluorinated alkyl phosphonate surfactants, and to the fluoropolymers formed thereby. Specifically, the method of the polymerization uses one or more alkyl phosphonic acids or salts thereof.

Abstract: An ?-(unsaturated alkoxyalkyl)acrylate composition is provided which enables an ?-(unsaturated alkoxyalkyl)acrylate product to be stored at a high purity for an extended period of time and can fully suppress problems such as coloration and gelation from arising during polymerization, and also a method of preparing ?-(unsaturated alkoxyalkyl)acrylate compositions for enabling to obtain industrially ?-(unsaturated alkoxyalkyl)acrylates safely in a high purity is also provided. The composition includes an ?-(unsaturated alkoxyalkyl)acrylate of a specific structure and an antioxidant, the content of the antioxidant being from 0.03 to 0.5 wt % per 100 wt % of the ?-(unsaturated alkoxyalkyl)acrylate.

Abstract: The present invention relates to the use of Styrenated Phenol Ethoxylates as surfactants in emulsion polymerization. The present invention further relates to the use of both anionic and nonionic Styrenated Phenol Ethoxylates in emulsion polymerization. Latexes with small average particle and narrow particle size distributions are obtained. Prepared latexes also have low coagulum levels and exhibit excellent mechanical and chemical stability.

Abstract: The use of nitroxides to control free radical cured resin systems used in the production of thermosetting materials such as in vacuum infusion, resin transfer molding and cured in place piping systems is disclosed. The invention could also be employed in other resin systems where control of kinetics would be desirable such as in adhesive formulations, in solid surface composites, and certain types of polyester casting resins.

Abstract: A method is provided for making nanoparticles, including the steps of: combining a hydrocarbon solvent and an aprotic, polar co-solvent, a mono-vinyl aromatic monomer, polymerization initiator, a solution stabilizer, and a first charge of a cross-linking agent. Subsequently, a second charge of cross-linking agent is added. The nanoparticles have an average diameter of 5 nanometers to about 10,000 nanometers. Spherical nanoparticles are also provided that include a cross-linking agent comprising 30% to 60% by weight of the combined weight of a mono-vinyl aromatic species and the cross-linking agent. The spherical nanoparticles also meet the following equation: 0.90?(D1/D2)?1.1 wherein D1 is a first diameter of a nanoparticle and D2 is a second diameter of the nanoparticle, and D1 and D2 intersect at right angles.

Abstract: The synthetic production of cis-1,4-polyisoprene and other cis-1,4-polydienes is achieved by adding isoprene or other diene monomers to a natural rubber latex or washed rubber particles and utilizing various allylic pyrophosphate compounds. The natural rubber latex or washed rubber particles inherently contain an enzyme catalyst and desirably divalent metal cofactors therein and the polymerization can occur over a relatively wide temperature range. The process is believed to be a living carbocationic polymerization. The in vitro produced natural rubber polymers can contain from about 5 to about 30,000 repeat units and are essentially free of non-enzyme catalysts. The invention can be utilized to synthesize polyisoprenoids and precursors to form terpenes, vitamins, steroids, alkaloids, and the like.