Abstract: A drag reducing composition comprising at least one non-polyalphaolefin polymer having an average particle size in the range of from about 5 to about 800 micrometers. The non-polyalphaolefin polymer can initially be formed via emulsion polymerization. The initial polymer particles can then be at least partially consolidated and then reduced in size and suspended in a carrier fluid. The resulting drag reducing composition can be added to a hydrocarbon-containing fluid to decrease the pressure drop associated with the turbulent flow of the hydrocarbon-containing fluid through a conduit.

Abstract: The invention is a method of treating, restoring or sealing a surface comprising applying an emulsion comprising a latex polymer, a cationic emulsifier, and optionally a recycling agent to the surface to wet the surface and depositing a surface treatment layer on the surface, wherein the depositing step occurs while the surface is wetted. The invention also includes a surface pretreatment composition comprising water, at least one acrylic latex polymer, an aromatic recycling agent, and at least one cationic emulsifier. Furthermore, the invention includes the surface resulting from the application of the emulsion used in the invention and concentrated emulsions for use with the surface treatment composition.

Abstract: A method for containing at least a portion of radioisotopes, radionuclides, heavy metal or combination thereof contaminating a substrate wherein a containment composition is applied to the substrate. The ingredients within the containment composition interact with the contaminants on the surface of the substrate until the containment composition has polymerized to a water insoluble form containing at least a portion of the contaminates enmeshed therein. The dried composition is removed from the contaminated surface removing with the composition at least a portion of the contaminate.

Abstract: The present invention provides a method for manufacturing polymeric nano-structures (nano-shells), wherein the nano-structures are hollow and respond to a temperature change by reversibly changing their volume, and the method comprises the steps of providing a polymer forming supramolecular structures when dispersed in a liquid environment, dispersing the polymer in a liquid environment to form the supramolecular structures and crosslinking the supramolecular structures, where the crosslinking occurs with the structures, whereby the nano-shells are obtained. The nano-structures manufactured according to the present invention are useful in sequestering, transporting, or scavenging hydrophobic or hydrophilic materials.

Abstract: Polymerized drug delivery devices are described. Additionally, methods are described for producing and for using polymerized particles for use as drug delivery devices.

Abstract: A thermally activated pressure sensitive adhesive is provided and a substrate includes the thermally activated pressure sensitive adhesive applied to one side of thereof. A method and system for include forming a pressure sensitive adhesive coated substrate using a thermally activated pressure sensitive adhesive coated substrate.

Abstract: A capsulated colorant including a colorant and a polymer resin which is coated on the colorant and has a cross-linked structure, a method of preparing the capsulated colorant, and an ink composition including the capsulated colorant. By adjusting the extent of cross-linking of the colorant on which the polymer having a cross-linked structure is coated, a capsulated colorant having a cross-linking of larger extent and a capsulated colorant having a cross-linking of smaller extent are obtained. By using an ink composition including the capsulated colorant having a larger cross-linked extent, characteristics of excellent waterfastness, lighffastness, rubfastness and optical density can be realized. In addition, by using the ink composition including the capsulated colorant having a smaller cross-linked extent, images with excellent durability and printed gloss can be realized.

Abstract: What are described are polyvinyl ester dispersions which are prepared in a multistage process and have a low content of polymerized acids or acid anhydrides. They can be obtained by a multistage process in which a polyvinyl ester dispersion is obtained in a first stage, monomers in dissolved or pure form are added to the reaction mixture in a second stage and then the polymerization is started again. The polymer dispersions obtained in this way are notable for a low coagulum content and for increased tensile strengths of the films formed therefrom.

Abstract: Paint systems, in accordance with exemplary embodiments, of the present invention include a foundation base component and a top coat component. The foundation base component is tinted to match the top coat component to provide both the desired amount of hiding of colors or markings on the substrate to which the paint system is applied, and to enhance the brightness and hue of the color of the paint system. Furthermore, in another innovative aspect of the present invention, the foundation base component comprises at least one low molecular weight polymer that undergoes self-crosslinking at ambient conditions during and after paint drying. The low molecular weight polymer penetrates various substrates, including chalky surfaces, to provide improved adhesion. Moreover, because the low molecular weight polymer is self-crosslinking at ambient conditions, the polymer enhances the performance of dried paints, including improving mechanical strength, tannin block properties, and weatherability.

Abstract: Process for preparing a pressure sensitive adhesive having enhanced resistance to water-whitening comprising the steps of: (a) forming a mixture in water of (i) a polymerization initiator which produces radicals by a thermal decomposition and (ii) a water-dispersible polymerizable surfactant with a terminal allyl amine moiety; polyoxyalkylene-1-(allyloxymethyl)alkyl ether sulfate salt(s) and/or mixtures thereof, (b) forming a polymerizable aqueous pre-emulsion comprising (i) a hydrophobic monomer mixture comprising at least one alkyl (meth)acrylate ester of a C1-4 alcohol and at least one styrenic monomer, (ii) one or more hydrophilic monomer(s), and (iii) of at least one partially hydrophilic monomer(s) selected from N-vinyl pyrrolidone; alkyl (meth)acrylate esters of methanol or ethanol; and/or mixtures thereof, the pre-emulsion further comprising surfactant, (c) contacting the pre-emulsion with the water mixture; and (d) continuously adding said pre-emulsion to said mixture to polymerize said pre-emulsion

Abstract: The present invention discloses a process for hydrogenating a latex of a low molecular weight functionalized, unsaturated elastomer to produce a latex of a hydrogenated, low molecular weight, low gel, functionalized elastomer, said process comprising hydrogenating the low molecular weight, functionalized, unsaturated elastomer in the presence of (1) an oxidant selected from the group consisting of oxygen and hydroperoxides, (2) a reducing agent selected from the group consisting of hydrazine and hydrazine hydrates, and (3) a metal ion activator, wherein a hydroxylamine is added to the latex of the low molecular weight, functionalized, unsaturated elastomer or to the latex of the hydrogenated, low molecular weight, functionalized elastomer prior, during, or subsequent to the hydrogenation to produce the latex of the hydrogenated low molecular weight, low gel, functionalized elastomer.

Abstract: A hollow particles-containing liquid composition which comprises: (A) crosslinked hollow particles having particle diameters of 0.4 ?m or more and containing 40 mass % or more of a toluene insoluble, in an amount of 5 to 70 mass %, (B) a reactive diluent (B1) and/or an organic solvent (B2) in an amount of 95 to 30 mass % [the total mass of the crosslinked hollow particles (A) and the reactive diluent (B1) and/or the organic solvent (B2) is 100 mass %], and (C) a dispersing agent in an amount of 0 to 30 parts by mass relative to 100 parts by mass of the total of the crosslinked hollow particles (A) and the reactive diluent (B1) and/or the organic solvent (B2). There are provided a hollow particles-containing liquid composition which is low in foreign matter content and can give a high haze, a process for production thereof, and an optical article.

Abstract: Disclosed are Pickering emulsions, related aqueous dispersions, and methods for their preparation, both of which include the use of a water insoluble promoter. Also disclosed are coatings and particle networks formed therefrom.

Abstract: The present invention relates to ink compositions. More particularly, the ink compositions contain the basic ingredients of pigment inks for inkjet applications. Those ingredients are pigment dispersions, humectants, surfactants/penetrants, biocide, and balance water. In addition to these ingredients, the ink compositions of the present invention contain from about 2.5% to about 7.5% of a latex binder emulsion. The latex binder emulsions include all types of polyacrylates such as polyacrylates, polymethacrylates, and styrene-acrylates or methacrylates wherein the glass transition temperature is greater than 50° C. and the particle size of the polymer emulsion is under 500 nm. Using of the high Tg latex polymer emulsions described herein allows a high pigment load, but without negatively influencing jetting.

Abstract: The present invention is drawn to a method of preparing anti-oxidant-modified latex particulates, ink-jet inks, and coating compositions. The present invention is also drawn to related latexes and ink-jet inks. The method can include steps of generating an emulsion with a hydrophilic continuous phase and a hydrophobic discontinuous phase, wherein the hydrophobic discontinuous phase includes monomers for polymerization, at least one monomer being modified by an anti-oxidant moiety; and polymerizing the monomers in the hydrophobic discontinuous phase using a biocatalytic polymerization process.

Abstract: A composition for artificial stone includes an acrylic resin, sponge particles in an amount of about 0.001 ppwa to about 50 ppwa, filler in an amount of about 100 ppwa to about 300 ppwa, and a polymerization initiator in an amount of about 0.1 to about 10 ppwa.

Abstract: An electrode binder composition comprising at least one metal chelate compound and at least one fluoropolymer. The binder composition used in a battery electrode improves the cohesion of the powdered active electrode material as well as the adhesion strength between the active material layer and the metallic current collector. The invention further relates to battery electrodes containing the binder composition for lithium ion secondary batteries and electric double layer capacitors.

Abstract: A process for producing an emulsion pressure-sensitive adhesive comprises (co)polymerizing a main monomer in the presence of a protective colloid, the protective colloid being an acrylic copolymer comprising (A-1) at least one hydrophilic monomer selected from the group consisting of acrylamide, methacrylamide, hydroxyethyl acrylate and hydroxyethyl methacrylate and (B-1) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-1) and whose alkyl group has 4 to 18 carbon atoms, or (A-2) a hydrophilic monomer being acrylic acid and/or methacrylic acid and (B-2) an alkyl (meth)acrylate that is copolymerizable with the hydrophilic monomer (A-2) and whose alkyl group has 4 to 9 carbon atoms; the hydrophilic monomer and the alkyl (meth)acrylate being copolymerized in a weight ratio in the range of 40-70:60-30; the acrylic copolymer having a weight-average molecular weight in the range of 500 to 50000.

Abstract: An aqueous dispersion of polymeric particles and process for making the aqueous dispersion are disclosed. The polymeric particles have at least one ethylenically unsaturated monomer and a copolymerized macromer with a number average molecular weight of between 1,000 and 50,000 and a cloud point in water of between 25° C. and 90° C.

Abstract: The present invention provides aqueous amphiphilic emulsion copolymer compositions comprising one or more aqueous phase copolymer, a residue of one or more hydrophilic chain transfer agent, and a residue of one or more hydrophobic chain transfer agent, as well as methods of making such copolymers in water or an aqueous liquid by copolymerizing a monomer component of from 20 to 80 wt. %, based on the weight of the monomer component, of a hydrophilic group-containing monomer and the remainder of a copolymerizable ethylenically unsaturated monomer or prepolymer in the presence of a mixed chain transfer agent component comprising a hydrophilic chain transfer agent, such as 3-mercaptopropionic acid, and a hydrophobic chain transfer agent, such as N-dodecyl mercaptan. The aqueous amphiphilic emulsion copolymers of the present invention are storage stable and exhibit excellent viscosity control even in high solids compositions, e.g. from 50 to 80 wt. % of the composition.

Abstract: A flame-retardant molding composition that includes an epoxy resin, melamine cyanurate, and one or more hydrated metal salts capable of liberating water when heated. The hydrated metal salt may include one or more compounds selected from metal borate salts, Group IIB oxides, and polyhydroxides of one or more elements selected from Group IIA elements and Group IIIB elements. The molding composition may be used to coat an electrical or electronic device by heating the molding composition to a temperature sufficient to cure the molding composition and form a polymer on the surface of the device. Electrical and electronic devices formed by the method are also disclosed.

Abstract: The present invention relates to new water-dilutable or water-soluble blocked polyisocyanates which allow the preparation of bakeable one-component (1K) polyurethane coating materials which exhibit rapid initial physical drying, exhibit reduced thermal yellowing and lead to haze-free coatings, to a process for preparing them, and to their use.

Abstract: A method for reducing the amount of residual monomer in aqueous polymer dispersions by aftertreatment with an initiator system comprises aftertreating the aqueous polymer dispersion with addition of an initiator system essentially comprising a) from 0.001 to 5% by weight, based on the total monomer amount used to prepare the polymer dispersion, of an inorganic salt of persulfuric acid, b) from 0.005 to 5% by weight, based on the total monomer amount used to prepare the polymer dispersion, of a methyl ketone, and c) optionally, catalytic amounts of a metal ion which is able to exist in a plurality of valence states.

Abstract: The invention relates to methods for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymer dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerization, possibly following the addition of a water-soluble salt, and, after polymerisation, a water-soluble acid is added to the water-soluble and/or water-swellable polymer A obtained in this way, where the acid is added in quantities of 0.1 to 5% by weight and the salt in quantities of up to a maximum of 3% by weight, each referred to the total dispersion, and the total quantity of salt and acid amounts to a maximum of 5% by weight, referred to the total dispersion.

Abstract: The invention relates to new, aqueous secondary copolymer dispersions, to a process for preparing them and to their use for producing high-grade coatings, especially for wood. The dispersions comprise a copolymer (P) synthesized from a mixture of free-radically polymerizable monomers (M) comprising (M1) cycloaliphatic esters of acrylic and/or methylacrylic acid and also (M2) vinyl esters of aliphatic carboxylic acids.

Abstract: This invention relates to a polymer precursor dispersion for use in making a polymer that is a solid at room temperature and further relates to a method of making same where the dispersion comprises a polymer precursor comprising an addition monomer, a condensation monomer, a prepolymer, or a polymer modifier and 0.01 to 50 weight percent of a micropulp having a volume average length of from 0.01 to 100 micrometers.

Abstract: An aqueous thermosetting primer composition includes a polyurethane polymer, an acrylic polymer polymerized in a wax having crosslinkable functionality, and a crosslinking component that is reactive with the wax and at least one of the polyurethane polymer and the acrylic polymer. The polyurethane polymer has a glass transition temperature of 0° C. or less. The acrylic polymer has a glass transition temperature that is at least about 20° C. higher than the glass transition temperature of polyurethane resin. The invention further provides a composite coating having as a primer layer a cured layer of the primer composition of the invention and having at least one topcoat layer.

Abstract: The present invention has for its object to provide an emulsion polymer resin composition adapted to give a coating film having an excellent appearance in terms of gloss, image sharpness, and apparent thickness, be satisfactory in curability and storage stability, contribute to cost reduction, express satisfactory coating film properties such as hardness, high impact resistance, scratch resistance, acid rain resistance, and weather resistance, and be conducive to a reduced VOC level, a curable composition comprising the above emulsion polymer resin composition and a crosslinking agent, and a cured coating film formed from the above curable composition. The present invention is an emulsion polymer resin composition which contains a hydroxyl group and a functional group reactive with the hydroxyl group within the same particle and has a weight average molecular weight of not less than 10000 but not more than 500000.

Abstract: A description is given of an optionally fluorinated polyurethane-polymer hybrid dispersion with enhanced surface properties (low critical surface tensions ?c and very high contact angles ?) which is obtainable by a) preparing a dispersion component (binder) based on an aqueous solution or dispersion of an optionally hydroxy- and/or amino-functional polyurethane-polymer hybrid having optionally fluorinated side chains and, if desired, b) subsequently reacting the dispersion component from stage a) with a crosslinker component (D). The polyurethane-polymer hybrid dispersion of the invention can be prepared in solvent-free or low-solvent fashion and with high solids content and requires only a very low level of stabilizing groups.

Abstract: A composition containing (i) an anti-microbial agent that comprises a polymeric biguanide, either alone or in combination with at least one other microbiologically active component and (ii) a basic co-polymer of the Formula (1): [A]m-[B]n-[D]yq.

Abstract: The invention relates to composite particles comprising a hydrophobic polymer core and inorganic nanoparticles. Said hydrophobic polymer forms a polymer matrix inside which the inorganic nanoparticles are stabilized and distributed in a relatively homogenous manner. Said particles are at least partially surrounded by an amphophilic copolymer comprising a hydrophobic part and a hydrophilic part, said hydrophobic part being at least partially immobilized in the polymer matrix. The inventor also relates to the preparation method thereof, the conjugates comprising such particles and a ligand and the use of same in reactants and therapeutic compositions.

Abstract: A composition containing (i) an anti-microbial agent that comprises a polymeric biguanide, either alone or in combination with at least one other microbiologically active component and (ii) an amphoteric co-polymer of the Formula (1):

Abstract: A process for preparing copolymer dispersions that includes subjecting A) one or more vinyl monomer mixtures containing a) OH-free (meth)acrylic esters and/or vinylaromatics, b) hydroxy-functional vinyl monomers and/or hydroxy-functional (meth)acrylic esters, c) ionic and/or potentially ionic monomers capable of free-radical copolymerization, and d)optionally further monomers, other than the compounds of components a)–c), capable of free-radical copolymerization; to free-radical polymerization in the presence of e) compounds according to formula (I) where R1 is an aliphatic, araliphatic or aromatic radical having 1 to 18 carbon atoms, R2 is H or CH3, R3, R4 are identical or different aliphatc radicals having 1 to 7 carbon atoms and n is 1 to 4; and subsequently dispersing the resultant copolymer B) before or after addition of a neutralizing agent C) in water. The resulting dispersions can be used to coat substrates.

Abstract: A liquid concentrate of mineral fillers including an aqueous or organic solvent, mineral fillers useful for making paints, with a dry extract of mineral fillers not less than 65%, and a grafted copolymer of: 1) 5 to 40 wt. %, preferably 15 to 35 wt. %, more preferably 20 to 30 wt. % of anchoring sequences of a linear copolymer formed from at least two different monomer units including: a first ethylene monomer unit of at least a basic nitrogenous group, and a second unsaturated ethylene monomer unit of an aromatic group, preferably a phenyl, with the weight content of the first monomer units relative to th second monomer units is from 40 to 60 wt. %, preferably about 50 wt. %; 2) 25 to 90 wt. %, preferably 40 to 80 wt. %, more preferably 50 to 70 wt. % of organo-soluble hydrophobic sequences to disperse the particles in a polar medium; and 3) 5 to 70 wt. %, preferably 15 to 30 wt. %, more preferably 10 to 20 wt. % of hydrophilic sequences of a water-soluble polymer.

Abstract: In this invention, an aqueous dispersion is provided to improve the oil and water repellency of materials. The aqueous dispersion comprises a polymer, at least one water dispersible polyester, and water; wherein the polymer comprises the repeating units from at least one fluoroalkyl monomer and optionally, at least one ethylenically unsaturated monomer. This invention also provides an article coated with the aqueous dispersion.

Abstract: Superabsorbent material treated to resist damage when subjected to an Absorbent Product Processing Simulation Test, which simulates the mechanical damage that occurs during current commercial diaper manufacturing processes. The treated superabsorbent material has a centrifuge retention capacity of about 15 grams or greater of 0.9 weight percent sodium chloride per gram of the superabsorbent material and a gel bed permeability (GBP) at 0 psi swell pressure on pre-screened particles of about 200 (×10?9 cm2) or greater. After subjecting the treated superabsorbent material to the Absorbent Product Processing Simulation Test, the treated superabsorbent may exhibit minimal reduction in GBP of pre-screened or un-screened particles at 0 psi or at 0.3 psi swell pressure, as well as possibly exhibiting minimal reduction in average particle size diameter (PSD).

Abstract: This invention discloses, as an article of manufacture, a capsule having a hollow interior and an enclosing wall, referred to as a membrane. The membrane is not soluble in water, but is permeable to water or an aqueous solution. The membrane is comprised of a first material and can also include a second material. When the membrane is comprised of the first material and the second material, then it is referred to as a composite material wherein the first material forms sporting matrix having the second material fixed in the matrix. The first material is a urethane/vinyl hybrid polymer and is not soluble in, reactive with or a solvent for the second material. The second material is a particulate solid, different from the first material, and is not soluble in, reactive with or a solvent for the first material.

Abstract: A process is provided to produce an aqueous dispersion wherein the aqueous dispersion enhances the water and oil repellency of materials. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; and 2) polymerizing the pre-emulsion in a polymerization zone in the presence of an initiator to produce the aqueous dispersion. In another embodiment, a process to produce an aqueous dispersion is provided. The process comprises: 1) contacting at least one fluoroalkyl monomer, at least one water-dispersible polyester, water, and optionally an ethylenically unsaturated monomer to form a pre-emulsion; 2) shearing the pre-emulsion to produce a mini-emulsion; and 3) polymerizing the miniemulsion in a polymerization zone to produce the aqueous dispersion.

Abstract: Excellent water repellency and Oil repellency are imparted to a textile by a method including (1) preparing a treatment liquid comprising a water- and oil-repellent agent, (2) adjusting pH of the treatment liquid to at most 7, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the water- and oil-repellent agent comprises at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer and a fluorine-containing low molecular weight compound, and the water- and oil-repellent agent or the treatment liquid contains a cationic emulsifier and/or a salt.

Abstract: Provided are a leather-like sheet fabricated by infiltrating an aqueous resin dispersion (A) into a fibrous substrate, which satisfies a requirement (I) that the aqueous resin dispersion, (A) comprises essentially a main resin (a) stabilized with a surfactant, a polymer (b) having a polyoxyethylene group in its side chains, and a surfactant (c), a requirement (II) that the main resin (a) comprises an urethane resin (a1) and/or an urethane-acrylic composite resin (a2), and the resin skeleton contains from 1 to 10 mmols of a carboxyl group per 100 g of the resin, a requirement (III) that the polymer (b) is obtained through polymerization of a polyoxyethylene group-having ethylenic unsaturated monomer (b1) and any other ethylenic unsaturated monomer (b2) in a ratio by mass (b1)/(b2)=60/40 to 100/0, and a requirement (IV) that the percentage, % by mass (?) of the polyoxyethylene group in the polymer (b) and the number of mols (?) of the amino group per gram of the polymer (b) satisfy 35??+?×20000?60; and an indus

Abstract: An aqueous resin dispersion useful as a primer capable of providing plastics products, in particular polyolefin plastics products, with good coatability characteristics. A thermocrosslinkable resin dispersion having a continuous phase having an aqueous medium and a dispersed phase distributed therein, the dispersed phase having particles (I) of a resin component and particles (II) of a crosslinking agent as separately dispersed from the particles (I), the resin component having, as an essential constituent thereof, a modified polyolefin resin (a) or a mixture thereof with a vinyl resin (b), the resin (a) having a number average molecular weight of at least 1,500 and having at least one functional group species selected from the group of carboxyl, hydroxyl, mercapto, amino, isocyanate and carbodiimide groups, the resin (b) having a number average molecular weight of 700 to 40,000 and a glass transition temperature of ?65 to 40° C.

Abstract: The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with the proviso that the composition has a viscosity of greater than about 10 Pa·s.

Abstract: An aqueous polymer blend composition containing particles of a first polymer and particles of a second polymer with preferred molecular weight ranges is provided. Coatings prepared from the aqueous polymer blend composition may be employed as coatings which have water whitening resistance and provide resistance to efflorescence to cementitious substrates, such as roof tiles. A method of preparing a coated cementitious substrate with the aqueous polymer blend composition and an article containing the coated cementitious substrate are also provided.

Abstract: Compounds of formula (I): [in which: R1 represents a direct bond, an oxygen atom, a group >CH2, a sulphur atom, a group >C?O, a group —(CH2)2— or a group of formula —N—Ra, where Ra is hydrogen or an alkyl; R4, R5, R6 and R7 are each hydrogen or various groups or atoms; R8, R9, R10 and R11 are each hydrogen, hydroxy, or alkyl; or R9 and R11 form a fused ring system with the benzene rings to which they are attached; R12 is a direct bond, oxygen atom or methylene; and X? is an anion; and esters thereof] are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.

Abstract: A latex having a reduced amount of 4-phenylcyclohexene is obtainable by reacting A) 30–90% by weight of at least one ethylenically unsaturated monomer; B) 70–10% by weight of a diene; C) 1–10% by weight of ?,?-unsaturated carboxylic acids, carboxylic acid nitriles, carboxylic acid amides, or mixtures thereof; and D) an auxiliary, an additive or mixtures thereof. The reaction follows a gradient regime for components A and B.

Abstract: An aqueous polymer dispersion prepared by free-radical polymerization of vinyl acetate in the presence of at least one ionic emulsifier, at least one free-radical initiator and at least one protective colloid, wherein the polymerization is carried out in the presence of a polymerization regulator and wherein the ratio by weight of protective colloid to ionic emulsifier is at least 4:1 and wherein the ratio by weight of vinyl acetate monomer to protective colloid is between 19:1 and 4:1.

Abstract: A paper coating slip containing a mineral pigment and an aqueous polymer dispersion as a binder, wherein the polymer dispersion is obtainable by emulsion polymerization of ethylenically unsaturated compounds (monomers) and the paper coating slip gels at above 35° C., i.e. the viscosity of the paper coating slip at from 35 to 60° C. is at least twice the viscosity at 30° C.

Abstract: The present invention relates to a process for the manufacture of PVDF homopolymer or copolymer by radical polymerization of vinylidene fluoride (VDF), and optionally of a comonomer, in aqueous dispersion and in the presence of a transfer agent, of a persulphate as radical initiator, optionally of a surface-active additive and optionally of a paraffin wax, in which: a) an aqueous PVDF dispersion is obtained, b) the dispersion from stage a) is washed, optionally after having been coagulated, to lower the proportion of possible surfactant in the PVDF to below 300 ppm, this proportion being expressed with respect to the dried PVDF, c) sodium acetate and optionally a potassium alkylsulphonate are added to the dispersion washed in b), d) the dispersion from stage c) is dried by any means to recover the PVDF powder comprising sodium acetate and optionally a potassium alkylsulphonate.

Abstract: A water-soluble resin composition comprising a water-soluble resin and a colorant, which copolymer has a weight average molecular weight of at least 8,000 and is prepared by polymerizing an ethylenically unsaturated carboxylic acid monomer and a monomer copolymerizable therewith in the presence of an alcoholic hydroxyl group-containing water-soluble high polymer or a copolymerizable surface active agent to give a copolymer having an acid value in the range of 5 to 120 and then neutralizing the thus-obtained copolymer with a basic, exhibits a reduced viscosity change when it is stored for a long period, and is useful as an aqueous ink capable of giving an image having good dot reproducibility and good abrasion resistance.

Abstract: To provide an aqueous emulsion composition which has high adhesion strength for a wide variety of materials including molded products and affords sufficient wettability even for the object to be adhesive bonded of low surface polarity so that it can develop sufficient adhesiveness and whose emulsion is stable so satisfactorily as to provide good mechanical stability and storage stability, and to provide an adherent composition comprising the aqueous emulsion composition, at least ethylene-vinyl acetate copolymer or modified resin thereof, photo polymerization initiator, and unsaturated ethylenic monomer are mixed and dissolved or dispersed, to prepare oil drop component, followed by emulsifying the oil drop component in water by using a surface-active agent, whereby an aqueous emulsion composition, in which micelles each encapsulating at least the ethylene-vinyl acetate copolymer or modified resin thereof, the photo polymerization initiator and unsaturated ethylenic monomer are dispersed in water, is prepared