Abstract: A reaction product (A) which can be prepared by reaction, under free radical conditions, of at least one monomer (a) capable of free radical reaction, in the presence of at least one free radical initiator and of a radical of the formula (III) where R1 to R3, in each case independently of one another, are hydrogen, methyl or a radical-stabilizing and/or bulky group selected from an unsubstituted or substituted, linear or branched alkyl of two or more carbon atoms, cycloalkyl, alcohol, ether, polyether, amine, aralkyl radical, a substituted or unsubstituted aromatic, heterocyclic or olefinic hydrocarbon, a halogen atom, a substituted or unsubstituted, linear or branched alkenyl or alkynyl group, —C(O)R5, —C(O)OR5, —CR5R6—O—R7, —O—C(O)R5, —CN, —O—CN, —S—CN, —O—C?NR5, —S—C?NR5, —O—CR5R6—CR7R8NR9R10, —N?C?O, —C?NR5, —CR5R6-Hal, —C(S)R5, —CR5R6—P(O)R7R8, —CR5R6—PR7R8, —CR5R6—NR7R8, —CR5R6(OR7)(OR8), —CR5R6(OR7)(NR8), —CR5R6(NR7)(NR8), an anhydride, acetal or ketal group, —SO2R5, an amidine group, —NR5C(S)NR6,

Abstract: Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) a hydrophobic monomer mixture of at least one alkyl acrylate or alkyl methacrylate ester of an alcohol wherein the alkyl portion of the alcohol is linear or branched and contains at least 4 carbon atoms, and at least one styrenic monomer, wherein the styrenic monomer is up to about 30 wt. % of the total hydrophobic monomer mixture, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt.

Abstract: An aqueous dispersion obtained by hydrolysis/condensation and radical polymerization of a mixture containing (A) at least one selected from an organosilane, a hydrolyzate of the organosilane and a condensate of the organosilane, and (B) a radical polymerizable vinyl monomer, in an emulsified state.

Abstract: To provide a water- and oil-repellent composition excellent in durability and excellent in safety and preservation of the environment. A water- and oil-repellent composition which comprises (A) a polymer, (B) an aqueous medium and (C) a surfactant in a mass ratio of (A)/(B)/(C)=100/100-500/1-10, the polymer (A) containing a polymerization unit based on a (meth)acrylate having a polyfluoroalkyl group, a polymerization unit based on an alkyl(meth)acrylate having a C1-C12 alkyl group, a polymerization unit based on an alkyl(meth)acrylate having a C16-C22 alkyl group and a polymerization unit based on a specific compound having a blocked isocyanate group.

Abstract: Dispersions of hybrid polyurethane particles are made using miniemulsion techniques. An isocyanate-terminated prepolymer and a monomer are mixed and dispersed in an aqueous phase to form a dispersion of droplets. All droplets are polymerized and chain-extended in one step to form hybrid particles containing a polyurethane and a polymer of the monomer. This process provides a simple method of making hybrid particles, in which particle size and the number of particles is controlled in the mixing step. The hybrid particles often have a core-shell morphology, with the polyurethane being concentrated in the shell and the polymer being concentrated in the center of the particle.

Abstract: The present invention relates to light fast, aqueous, strippable coating compositions containing A) 40 to 90 wt. %, based on resin solids of A) and B), of aqueous polyurethane-polyureas and B) 10 to 60 wt. %, based on resin solids of A) and B), of polymers prepared from radically polymerizable monomers, wherein the percentages of A) and B) add up to 100, based on the weight of resin solids of A) and B). The present invention relates also to substrates coated with these strippable coating compositions. In addition, the present invention relates to the use of the stripped coatings as recycled material by mechanically comminuting the stripped coatings, optionally after cleaning, and then either pressing them in heatable presses to form sheets, or extruding them in an extruder to form endless thermoplastic threads, and then processing the resulting threads by known granulating methods to form cylindrical, spherical, lenticular or rhombic granules.

Abstract: A description is given of a polymer dispersion comprising i) polymer particles dispersed in an aqueous medium and composed of units of ethylenically unsaturated monomers, ii) a water-soluble polymeric polyelectrolyte which along a polymeric backbone carries a large number of ionic groups of uniform charge character or groups which can be ionized to such groups, and iii) an ionic surfactant which carries an ionic group having a charge character opposite to that of the polymeric polyelectrolyte, or a group which can be ionized to such a group. The polymer dispersion can be coagulated by simple dilution with water.

Abstract: A process for preparing hot-melt pressure-sensitive adhesives from aqueous dispersions based on polyacrylate, and pressure-sensitively adhesive articles produced therefrom, which comprises producing highly concentrated aqueous dispersions with polymer contents between 68% by weight and 87% by weight of gel-free, molecularly-dispersely meltable polymer particles with an at least bimodal size distribution in size ranges between 0.5 ?m and 1000 ?m Ø.

Abstract: A removable pressure-sensitive adhesive which, even when applied to metal sheets or to metallic members which have undergone a coating treatment, is inhibited from increasing in adhesive force with the lapse of time and can be easily removed therefrom and which has satisfactory weatherability and satisfactory pot life contains 100 parts by weight on a solid basis of an aqueous dispersion type acrylic copolymer obtained by polymerizing a monomer mixture in an aqueous medium in the presence of a nonionic surfactant and/or an anionic surfactant each having an ethylenic double bond and 0.1 to 3 parts by weight of a hindered-amine light stabilizer having a piperidine ring in which the nitrogen atom has a tertiary amine structure; and an adhesive sheet is produced with the adhesive.

Abstract: An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.

Abstract: This invention relates to novel carboxylic acid-modified vinylic polymeric compositions and the process for preparing them. In particular, the invention relates to novel carboxylic acid-modified vinylic polymeric compositions which exhibit properties that make them useful as support resins for producing polymer latices which can be employed in the formulation of various water-based coatings and inks, particularly flexographic inks. More particularly, these carboxylic acid-modified vinylic polymeric compositions are produced by the addition polymerization reaction of vinylic monomers in the presence of dimer acids, trimer acids, dimerized rosins, or mixtures thereof.

Abstract: The present invention relates to modified alkyd polymers and compositions thereof, in which the alkyd polymers are modified with polyol-containing latex compositions and/or diol-containing latex compositions. The invention further relates to compositions prepared from such modified alkyd compositions.

Abstract: An aqueous polymer dispersion, a process for preparing it, and substrates bound on the basis of it are described.

Abstract: An emulsion composition comprises a graft copolymerized emulsion obtained by adding a monomer or monomeric mixture containing at least 70% by weight of a (meth)acrylic monomer to an oil-in-water type emulsion containing an organopolysiloxane having an organic group containing a radical reactive group or SH group, and effecting emulsion graft polymerization of monomer to organopolysiloxane. The emulsion composition is capable of forming an elastic, flexible coating having weather resistance, water resistance, water repellency, adhesion and heat resistance and maintaining these properties over a long period of time, and thus suited for building materials.

Abstract: A polymer dispersion is prepared by copolymerization of from 20 to 70 parts by weight of a monomer mixture comprising a) from 2.5 to 100% by weight of one or more (meth)acrylates of monohydric, saturated C3-C8-alcohols as monomers A and b) from 0 to 97.5% by weight of one or more further ethylenically unsaturated monomers as monomers B in 100 parts by weight of an aqueous solution which contains from 5 to 35% by weight of a starch or of a starch derivative by emulsion polymerization in the presence of an initiator containing peroxide groups, by a process in which the initiator and monomers are metered in continuously and wherein, a first amount of initiator is metered in over a first feed period of from 5 to 60 minutes and a second amount of initiator is metered in over a second feed period of from 15 to 180 minutes, the first amount of initiator being greater than the second amount of initiator.

Abstract: Dual cure coating composition comprising resin solids, said resin solids being composed of (a) 30 to 90 wt. % of at least one hydroxy-functional polyester urethane having olefinic double bonds, (b) 0 to 60 wt. % of at least one binder other than the polyester urethane (a) and/or at least one reactive diluent, and (c) 10 to 50 wt.

Abstract: An aqueous dispersion of a segmental copolymer, wherein the aqueous dispersion has a Hard/Soft Balance Advantage value of at least 25% is disclosed. A method for preparing the aqueous dispersion of a segmental copolymer is also disclosed, as is a film produced thereby.

Abstract: A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at least one surfactant and of a seed of polymer particles with a diameter of between 200 and 450 nm. The seed particles represent from 5-25% by weight of the total weight of the monomer and seed. The polymerization is initiated by a mixed water-soluble/fat-soluble system. Also included are lattices obtained from this process.

Abstract: Water-swellable hot-melt adhesives based on a tackifying resin, a water-dispersible EVA wax, an ethylene/acrylic ester copolymer, a water-soluble homo- or co-polymer and a super absorber polymer powder having an average particle size of less than 80 &mgr;m display a clearly improved swelling behavior in comparison with the prior art. Furthermore, the swelling agent is significantly more homogeneously distributed in the matrix. Such hot-melt adhesives are suitable for ensuring longitudinal water impermeability in modern cable structures, as water-swellable jointing compounds in the building industry in the area of building conservation and restoration. Such hot-melt adhesives are further suitable for the manufacture of absorbent textile fabrics in the personal hygiene sector.

Abstract: Aqueous primary dispersions comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a diameter≦500 nm, preparable by free-radical microemulsion or miniemulsion polymerization of at least one olefinically unsaturated monomer (A) in the presence of at least one polyhydroxy-functionalized cyclic and/or acyclic alkare having from 9 to 16 carbon atoms in the molecule, and their use in automotive OEM finishing and refinishing, in furniture coating and in industrial coating, including coil coating, container coating and the coating of electrical components.

Abstract: The present invention elates to a vinyl acetate based polymer latex composition obtained by emulsion polymerization of: (a) polyvinyl alcohol, (c) a monomer mixture comprising vinyl acetate, and (d) optionally one or more additional co-monomer(s), in presence of (c) 0.0001-0.05 wt. % of a chain transfer agent, based on total monomer weight, said vinyl acetate based polymer latex composition having a weight average particle size ≧400 nm and a higher shear thinning factor than the vinyl acetate based polymer latex composition (a), (b) and (d) obtained in the absence of the chain transfer agent (c). According to one embodiment, emulsion polymerization is carried out in presence of 0.001 to 0.05 wt. % of a chain transfer agent selected from the group consisting of aldehydes and chain transfer agents having a similar chain transfer constant with regard to vinyl acetate as the monomer. According to another embodiment, emulsion polymerization is carried out in presence of 0.0001 to 0.01 wt.

Abstract: The invention is the use of a glycolic acid adduct of sodium sulfite as the reducing agent in the redox couple for polymerization of vinyl acetate polymer based emulsions for nonwoven binders which contain formaldehyde, primarily from the self-crosslinking co-monomer N-methylolacrylamide.

Abstract: A water-based resin dispersion, a method for producing the water-based resin dispersion, and its applications. The water-based resin dispersion of the invention is excellent in permeability, leveling property and chemical stability. The water-based resin dispersion is produced by causing reaction of macromonomer composition and a vinyl monomer in an aqueous medium. The macromonomer composition is obtained by polymerization of a monomer mixture in a temperature range between 160° C. and 350° C., wherein a monomer mixture contains, with respect to the total amount of all monomers provided for the production of the macromonomer composition, for example: a vinyl monomer having alkyl group in the &agr;-position at 10 to 80 weight %; a non-aromatic vinyl monomer having hydrogen atom in the &agr;-position at 90 weight % or less; and styrene at 30 weight % or less. The macromonomer composition includes a hydrophilic monomer unit and a hydrophobic monomer unit.

Abstract: The invention relates to aqueous polyurethane (PU)-polyacrylate (PAC) hybrid secondary dispersions and the aqueous two-component (2K) coating compositions produced therefrom, a process for their preparation and use.

Abstract: Provided is a polyvinyl ester resin emulsion which has high viscosity and has good water resistant adhesiveness, heat-resistant adhesiveness, hot water-resistant adhesiveness and storage stability, especially high-temperature storage stability, and which has good film-forming ability and is readily formed into transparent films. The emulsion is produced in a method of polymerizing a vinyl ester monomer in a mode of emulsion polymerization in the presence of a polyvinyl alcohol serving as protective colloid and in the presence of a water-insoluble, hydroxyl group-containing compound.

Abstract: Process for the preparation of protective colloid-stabilized aqueous dispersions.

Abstract: A coating composition which contains a polymeric complex between polyaniline and a polymeric ion. In addition to the said polymeric complex, the composition contains a water-dispersable binder. The composition is useful as a water-borne paint to be applied onto a metal substrate electrophoretically or non-electrophoretically.

Abstract: The present invention is generally directed to a polyaniline/high molecular weight polymeric sulfonic acid complex made by oxidative polymerization, and aqueous polyaniline dispersions, where the viscosity of the dispersion has been increased by the presence of the high molecular weight polymeric sulfonic acids during the polymerization process.

Abstract: An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite. The composites are prepared by mixing or dispersing carbon nanotubes in polymer emulsion using an energy source such as a Waring blender. The liquid in the mixture is then evaporated to obtain the composite comprising the polymer and the nanotubes.

Abstract: The use of a copolymer (A) preparable by free-radical polymerization of a) at least one olefinically unsaturated monomer and b) at least one olefinically unsaturated monomer different than the olefinically unsaturated monomer (a) and of the general formula I R1R2C═CR3R4  (I), in which the radicals R1, R2, R3 and R4 each independently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; in an aqueous medium, in a coating material used to produce surfacer coats and antistonechip primer coats.

Abstract: An aqueous polymer dispersion having a minimum film-forming temperature of below +65° C.

Abstract: A process for the synthesis of chlorotrifluoroethylene (PCTFE) (co)polymers, containing at least 80% by moles of CTFE, being the complement to 100 one or more fluorinated monomers, preferably the complement to 100 is formed of one or more perfluorinated monomers, characterized in that the reaction medium comprises (per)fluoropolyoxyalkylene microemulsions wherein the fluorinated surfactant is salified with sodium and/or potassium and an inorganic potassium and/or sodium initiator.

Abstract: Aqueous primary dispersion, substantially or completely devoid of volatile organic substances, method for the production thereof and use of the same Aqueous primary dispersion, substantially or entirely free of volatile organic compounds, and comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core/shell particles with a particle diameter ≦500 nm, preparable by free-radical micro- or miniemulsion polymerization of at least one olefinically unsaturated monomer in the presence of at least one hydrophobic additive and of at least one oligomeric polyester with a number-average molecular weight of from 150 to 1 500 daltons, a hydroxyl number of from 100 to 1 000 mg KOH/g, and an acid number <20 mg KOH/g and also a process for preparing it and its use as a coating material, adhesive or sealing compound or to prepare a coating material, an adhesive or a sealing compound.

Abstract: The invention relates to a method for producing an aqueous polymer dispersion by means of radically initiated aqueous emulsion polymerisation of at least one ethylenically unsaturated monomer in a polymerisation container comprising an external circuit leading away from said polymerisation container and back thereto.

Abstract: The invention relates to methods for manufacturing a water-in-water polymer dispersion containing polymer A and at least one polymeric dispersant B, according to which monomers, which are dispersed in an aqueous phase containing water-soluble dispersant B, are subjected to radical polymerisation, 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 0.5% 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: Solvent-free aqueous polyurethane-polyacrylate hybrid dispersions, a process for preparing them and their use for producing elastic coatings. The polyurethane-polyacrylate hybrid dispersions are obtained by preparing a hydrophilic or hydrophilicizable polyurethane by reacting isocyanate components with an equimolar amount of one or more diols or polyols, low molecular weight diols or polyols, and hydrophilic compounds having at least one NCO-reactive group, in the presence of ethylenically unsaturated monomers which are inert towards NCO groups. The resulting NCO-free polyurethane is dispersed in emulsion-polymerizing monomers.

Abstract: Aqueous water repellent coating compositions comprising admixtures of (i) water-based water repellent compositions and (ii) water-reducible film-forming polymers are disclosed.

Abstract: A glass article comprising a glass body having a surface and a water-soluble surface-protection film formed on the surface. The water-soluble surface-protection film is made of hydroxy acid or salt thereof. The hydroxy acid or the salt thereof is one or more kinds selected from the group consisting of citric acid, tartaric acid, malic acid, gluconic acid and salts thereof. An example of the glass body is a funnel part having an anode button for a CRT.

Abstract: The present invention provides for the production of stable aqueous dispersions of vinyl acetate-ethylene copolymers, preferably at high solids, i.e., greater than 65 wt %, preferably >70% which are useful as adhesives. The vinyl acetate-ethylene copolymer is comprised of polymerized units of vinyl acetate and ethylene in approximately 60-95 wt % and 5-40 wt % respectively. The copolymers are prepared by the emulsion copolymerization of vinyl acetate and ethylene monomers in the presence of a stabilizing system consisting essentially of (1) a poly(vinyl alcohol) which is 75-99+mole % hydrolyzed and has an average degree of polymerization ranging from 100-2200 and (2) a polyethylene glycol having a number average molecular weight of from 200 to 20,000.

Abstract: The overall performance of water-reducible polymer dispersions, more specifically alkyd dispersions, can be substantially improved by utilizing resins derived from acidolysis reaction products of polyalkylene terephthalates and polyalkylene naphthalates. According to this invention, polymer dispersions can be produced from low acid value polymers and yet have good water dispersibility. When an aqueous coating composition is formulated using the dispersion of this invention, a final coating is formed that has good hydrolytic stability, and when blended with a latex, exhibits improved gloss and wet adhesion.

Abstract: A composition of matter for surface sizing of paper and other cellulosic products. In particular, the composition is a styrene/acrylic acid ester copolymer latex made by emulsion copolymerization without surfactants.

Abstract: A water dispersible polyurethane dispersion suitable for use as a curable film-forming composition is provided wherein the dispersion comprises, in water, the reaction product of (i) an acrylic polyol having hydrophilic groups, (ii) a polyol hydrosilylation reaction product of an alkylpolysiloxane and an unsaturated hydroxyalkyl compound, and (iii) a polyisocyanate component. Preferably, the acrylic polyol comprises a copolymer containing aromatic groups and having a glass transition temperature of at least about 0° C.

Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising dispersed polymer particles of at least one addition polymer A1 obtainable by semicontinuous free-radical emulsion polymerization of ethylenically unsaturated monomers in the presence of an addition polymer A2 synthesized from

Abstract: The invention embraces basecoating compositions comprising as binder constituents (i) an acrylate dispersion having a content of from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate-containing monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid in the polymer, and (ii) a dispersion of a polymer which is obtainable by subjecting an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers to free-radical polymerization in the presence of a water-insoluble initiator or of a mixture of water-insoluble initiators and in an aqueous dispersion of a polyurethane resin which has a number-average molecular weight Mn of from 1000 to 30,000 daltons and comprises on average from 0.05 to 1.

Abstract: A pressure sensitive adhesive/cohesive exhibits excellent cohesive body properties, and other desirable features, even when exposed to heat and polysiloxane based lubricants, such as in a laser printer. The formulation comprises 100 parts by weight natural rubber (e.g. electrosterically stabilized natural rubber graft and block terpolymer), and expressed as percentages by weight of the rubber the following components: about 5-35% (e.g. about 28%) acrylate monomer or monomers (such as methyl methacrylate, cyclohexyl methacrylate, benzyl methacrylate, and/or isobornyl methacrylate); about 0.5-8% acrylic acid and/or about 1-10% 4-acetoxystyrene; about 0-20% ethyl hexyl acrylate; about 1-50% (e.g.

Abstract: A process for the preparation of an aqueous solution or dispersion containing a cationic polymer, which comprises the steps of: polymerizing a monomer including an N-vinyl-carboxylic acid amide represented by the general formula CH2═CHNHCOR, wherein R represents a hydrogen atom or methyl group, in an aqueous medium in the presence of either or both of a polyethylene glycol and polypropylene glycol; and then modifying the resulting polymer with an acid or base. Furthermore, an aqueous composition containing a cationic polymer, which comprises (A) a modified N-vinylcarboxylic acid amide polymer, (B) either or both of a polyethylene glycol and polypropylene glycol, and (C) water is disclosed.

Abstract: A resin composition of the present invention is obtainable by adding a photo-polymerization initiator (d) to a resin solution (a) containing a modified product of a thermoplastic resin (A). The modified product is prepared by conducting radical polymerization of the thermoplastic resin (A) with a (co)polymer (B) of a copolymerizable monomer (C) comprising a monomer having an &agr;,&bgr;-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(B) of 1/9 to 9/1, in an organic solvent, or by conducting polymerization of a copolymerizable monomer (C) comprising a monomer having an &agr;,&bgr;-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(C) of 1/9 to 9/1, in an organic solvent in the presence of the thermoplastic resin (A), and then conducting radical polymerization thereof.

Abstract: A method for making readily agglomeratable rubber latex is disclosed. The method that comprise emulsion polymerization of suitable monomers in the presence of an alkalipersulfate initiator and the optional presence of salt is based on the finding of the critical relationship between the amount of decomposed alkalipersulfate (W) and the particle size of the pre-agglomerated rubber particles (Do).

Abstract: The present invention relates to a method of forming porous particles comprising preparing a mixture of an organic phase and an aqueous phase comprising an unsaturated polyester, a water immiscible organic solvent, at least one organic-soluble ethylenically unsaturated monomer, and initiator, subjecting said mixture to high energy emulsification, initiating crosslinking of said polyester after emulsification, removing said water immiscible organic solvent to recover porous polyester particles.

Abstract: Described is a process for preparing aqueous polymer dispersions by at least two-stage free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers, comprising: