Abstract: Provided herein is a polyvinylbutyral (PVB) resin having a meso/racemic stereoisomer ratio of from about 2.5 to about 5.0. Further provided herein is a plasticized PVB composition comprising the PVB resin. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of the PVB composition, in addition to or in lieu of changing additives or otherwise manipulating the PVB composition.

Abstract: Disclosed herein is a polymeric composition comprising a polycarbonate polymer, a mineral filler, and a sulfonate salt. The sulfonate salt apparently forms a barrier between the polymer matrix and the mineral filler. The resulting composition has an improved balance of tensile modulus, impact strength, ductility, and flow properties.

Abstract: A pigmented latex composition having a solids content in a range from 60 wt % to 95 wt % includes a) an aqueous dispersion of a polymeric binder that is a copolymer including units of vinyl acetate, ethylene and at least one ethylenically unsaturated carboxylic acid or salt thereof, the polymeric binder constituting in a range from 10 wt % to 30 wt % of the composition; wherein vinyl acetate units constitute in a range of 70-95 wt % of the polymeric binder, ethylene units constitute in a range of 5-30 wt % of the polymeric binder and ethylenically unsaturated carboxylic acid units constitute in a range from 0.75 wt % to 5 wt % of the polymeric binder; the aqueous dispersion of the polymeric binder is free of alkylphenol ethoxylate surfactants and phosphate ester surfactants; and the polymeric binder has a weight average particle size in a range from 0.1 ?m to 0.

Abstract: Color enhancing compositions for enhancing, changing and concealing the color of substrates to which the compositions are applied are provided. The compositions include chromatically selective scattering particles having small sizes and narrow size distributions. Inks, paints and other coatings made from the color enhancing compositions are also provided.

Abstract: A composition for coating paper includes at least one pigment selected from the group consisting of polymeric pigments, aluminosilicates, calcium carbonate, titanium dioxide, talc, barium sulfate, zinc oxide, aluminum trihydrate, amorphous silica and silicates; wherein the pigment is dispersed in an aqueous dispersion of a polymeric binder that is a copolymer of vinyl acetate, ethylene, at least one ethylenically unsaturated sulfonic acid or salt thereof and optionally one or more other monomers, wherein vinyl acetate units constitute in a range of 70-90 wt % of the polymeric binder and ethylene units constitute in a range of 10-30 wt % of the polymeric binder; and wherein the polymeric binder has a mean particle size in a range from 0.1 ?m to 0.

Abstract: The present invention provides a golf ball resin composition comprising (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer, (a-3) a ternary copolymer composed of an olefin, an ?,?-unsaturated carboxylic acid having 3 to 8 carbon atoms and an ?,?-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer; and (B) an anionic surfactant containing sulfur. The present invention further provides a golf ball comprising a constituting member formed from the above golf ball resin composition.

Abstract: The present invention provides a thermoplastic resin composition for cleaning, containing: (A) 100 parts by mass of polypropylene resin, (B) 0 to 50 parts by mass of a thermoplastic resin which is not compatible with the polypropylene resin of the component (A), (C) 0.5 to 50 parts by mass of a thermoplastic resin for making the polypropylene resin of the component (A) compatible with the thermoplastic resin of the component (B), and (D) 0.5 to 15 parts by mass of a surfactant.

Abstract: Disclosed is an aqueous effect basecoat material comprising at least one liquid-crystalline aqueous preparation (WZ) in fractions of 1% to 99% by weight, based on the aqueous basecoat material, at least one film-forming polymer (FP), and at least one effect pigment (EP).

Abstract: The invention relates to antistatic polymer compositions comprising a polymer substrate, a polyalkyleneethoxylate with a specific molecular weight and a salt. Further aspects are a process for preparing an antistatic polymer and the use of such a polyalkyleneethoxylate as antistatic agent in polymers, preferably together with a salt.

Abstract: Use of an talc being coated with an organo-metallic compound in a polymer composition to accomplish a headspace emission of all volatiles together of said polymer composition of equal or below 120 ?g/g.

Abstract: An adhesive composition for use in the manufacture of wood-based boards, wherein the adhesive composition is foamable and comprises a resin, a filler and a foaming agent without any cationic acrylamide copolymer. According to the invention, the adhesive composition contains 40-80 wt % resin, 5-30 wt % filler, 0-40 wt % solvent, and 0.1-10 wt % foaming agent, which has been selected from organic and/or inorganic surface-active sulfate, sulfonate, phosphate or phosphonate compounds or their derivatives or mixtures.

Abstract: [Problem to be Solved] There is provided automotive lamp peripheral parts excellent in the heat resistance, rigidity and fogging property. [Solution] The automotive lamp peripheral part according to the present invention is obtained from a resin composition containing 70% by mass or more of a polyphenylene ether (A), and has a haze value of a glass plate of 1.0% or less after the glass plate is subjected to a following fogging test using an apparatus according to ISO 6452: <Fogging test> 60 g of a pellet or a molded article obtained from the resin composition is put in a glass-made sample bottle; the sample bottle is covered with a glass plate as a lid, and heated at 170° C. for 24 hours to thereby generate fogging on the glass plate.

Abstract: The present invention is method for controlling the stereoisomerism of PVB resin as well as a PVB resin having a meso/racemic stereoisomer ratio of from about 2.5 to about 5.0. Manipulation of the PVB stereoisomer ratio can provide an additional method of controlling the physical properties of PVB, in addition to or in lieu of changing additives or manipulating the PVB composition.

Abstract: Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C.

Abstract: A polycarbonate resin composition that is enhanced in flame retardancy while maintaining transparency containing (A) a polycarbonate resin component containing from 10 to 90% by mass of (A-1) an aromatic polycarbonate resin containing a dihydroxybiphenyl as a part of a dihydric phenol, from 10 to 90% by mass of (A-2) an aromatic polycarbonate-polyorganosiloxane copolymer, and from 0 to 80% by mass of (A-3) an aromatic polycarbonate resin other than (A-1) and (A-2), and a molded product thereof. In the flame retardant polycarbonate resin composition, the content of the polyorganosiloxane in (A) is preferably from 0.3 to 1.6% by mass, and the composition may contain from 0.01 to 1 part by mass of (B) an organic metal salt per 100 parts by mass of (A).

Abstract: An aqueous dispersion of a copolymer with copolymerized units a) of at least one ethylenically unsaturated carboxylic acid, b) of at least one nonionic ethylenically unsaturated surfactant monomer, c) of at least one C1-C2-alkyl methacrylate, d) of at least one C2-C4-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0, is described. Following neutralization with alkali, the dispersion serves as associative thickener, in particular for liquid detergent and cleaner formulations. The thickeners are characterized by high transparency and high thickening effect coupled with high shear dilution.

Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.

Abstract: The present invention relates to flame-retardant compositions containing: A. 65 to 99.998 wt. % polycarbonate, B. 0.001 to 1 wt. % of an organic flame-retardant salt selected from the group consisting of alkali and alkaline-earth salts of aliphatic and aromatic sulfonic acid, sulfonamide and sulfonimide derivatives and mixtures thereof, and C. 0.001 to 1 wt. % of one or more bromine-containing flame-retardant additives, characterised in that that the overall composition contains 100 ppm to 1000 ppm bromine.

Abstract: The flame retardant polycarbonate resin composition of the present invention includes (A) a polycarbonate resin, (B) a rubber-modified vinyl-based graft copolymer, (C) a metal salt of sulfonic acid, and (D) an anti-drip agent including a fluorinated terpolymer. The polycarbonate resin composition of the present invention can have excellent flame retardancy, heat resistance, and mechanical strength, well-balanced mechanical properties such as impact resistance, heat resistance, and fine workability, and an excellent appearance characteristic. Therefore, it can be useful for fabrication of molded products such as electric household appliances, office appliances, electrical and electronic devices, and internal parts thereof.

Abstract: A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber.

Abstract: The present invention relates to an acrylic pressure-sensitive adhesive composition, and more particularly, to an acrylic pressure-sensitive adhesive composition, which comprises (a) 100 weight parts of an acrylic copolymer, (b) 0.001 to 30 weight parts of an antistatic agent; and (c) 0.01 to 10 weight parts of a corrosion inhibitor, thereby being optically transparent, causing durability and reliability not to change, and simultaneously improving antistatic performance and preventing generation of corrosion although the adhesive composition comes into contact with a metal surface.

Abstract: A process for making an aqueous dispersion of fluoropolymer particles by polymerizing in a first polymerization step at least one fluorinated monomer having an ionic group in an aqueous polymerization medium in the presence of initiator, the polymerizing providing dispersed particulate of fluorinated ionomer, and polymerizing in a second polymerization step at least one fluorinated monomer in the aqueous polymerization medium in the presence of the dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluoropolymer.

Abstract: A nickel-free sealing reagent comprises an alkyl sodium sulfonate compound, a dispersing agent, and a siloxane defoaming agent. A method of sealing an alloy comprises applying a nickel-free sealing reagent to the alloy, wherein the sealing agent comprises an alkyl sodium sulfonate compound, a dispersing agent, and a siloxane defoaming agent.

Abstract: A process for preparing a sulfonate terminated polyarylate comprises blending a polyarylate resin with an organic compound to form a reaction mixture, wherein the organic compound contains at least one aliphatic primary amine functional group and at least one other functional group selected from the group consisting of sulfonic acids, sulfonic acid salts, and mixtures thereof, and heating the reaction mixture to a temperature of 225 to 400° C. The temperature of heating is above the glass transition temperature of the polyarylate resin. Sulfonate terminated polyarylates and compositions prepared using the above process, and articles comprising the sulfonate terminated polyarylate compositions, are also disclosed.

Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A?] Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A? is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.

Abstract: Fine fluoropolymer powders substantially fluorinated surfactant free, in particular fluorinated ionic surfactants, preferably perfluorooctanoic acid or its salts, comprising an anionic polyelectrolyte.

Abstract: Polycarbonate compositions having an aromatic polycarbonate resin with 90% or greater fluoroalkylene carbonate end-groups are formed from a partially fluorinated alcohol or a partially fluorinated polymeric alcohol, and a bisphenol and a carbonate source using melt or interfacial polymerization methods. Copolymers and blends with a variety of other bisphenols and other thermoplastics are also described. The polycarbonate compositions show high water contact angles, fluorine enrichment on the surface layer of molded articles, and good flame retardant properties and are useful in a variety of applications including medical, automotive, telecommunication and weatherable applications.

Abstract: Barium sulfate-containing composites, to methods for producing the same and to the use of said composites.

Abstract: The current invention relates to water-swellable polymers at least partially comprised of sulfonic acid group containing monomers as additives for fire extinguishing water, which exhibits an elevated NaCl content, used in fire prevention and to combat fire.

Abstract: A composition is disclosed, comprising, based on the total weight of the composition, from 20 to 60 wt. % of a polyimide having a glass transition temperature above 180° C.; from 10 to 30 wt. % a polyester-polycarbonate copolymer; from 30 to 60 wt. % of a reinforcing filler; and at least two flame retardant additives selected from the group consisting of from 0.01 to 0.5 wt. % of a first sulfonate salt, from 0.01 to 0.5 wt. % of a second sulfonate salt, from 0.5 to 5 wt. % of a siloxane copolymer, and combinations thereof. An article molded from the composition attains an improved UL94 rating, as compared to an article molded from the same composition without the at least two flame retardant additives.

Abstract: A branched polycarbonate resin prepared from a divalent phenol, a carbonate precursor, a branching agent, and a chain terminating agent is provided, in which the branching agent is composed of a trisphenol compound represented by the general formula (I). The use of the branching agent brings about excellent washability and permits molding which barely suffers from sagging (blow down) of the melt or stringiness thereof and is accompanied with high melt tension and excellent moldability, thus enabling efficient production of good molded products at high productivity.

Abstract: A composite material includes a polymer matrix and a pigment dispersed in the polymer matrix. The pigment includes an alumina hydrate particulate material and a dye. The dye is covalently bonded to a surface of the alumina hydrate particulate material.

Abstract: The present technology generally relates to emulsion polymer latexes, particularly those used in pressure sensitive adhesives, paints and coatings. Surfactant compositions of the present technology for use in forming at least one emulsion polymer latex comprise at least one branched surfactant, at least one sterically bulky surfactant, or a mixture of branched and sterically bulky surfactants. One preferred surfactant composition comprises at least one alkoxylated polyaryl substituted aromatic compound or at least one alkoxylated polyalkyl substituted aromatic compound. Another preferred surfactant composition comprises a mixture of at least one branched-alkyl sulfate and at least one ethoxylated polystyrylphenol. Another preferred surfactant composition comprises at least one sulfated polystyrylphenol.

Abstract: A single-component high-temperature-curing reactive composition based on natural and/or synthetic elastomers having olefinic double bonds and on vulcanizing agents is provided. Such compositions contain at least one liquid polyene with a molecular weight between 400 and 80,000, preferably between 800 and 25,000; at least one block copolymer with at least one polyene block and at least one saturated block; and a vulcanizing system of sulfur and accelerators and/or quinone oximes, if applicable. Such high-temperature-curing reactive compositions are useful as single-component adhesives, sealant or coating compositions or sealing compounds in automobile body manufacture.

Abstract: Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use in a layer-by-layer process in which regions of a powder layer are selectively melted via introduction of electromagnetic energy.

Abstract: The present invention provides an aqueous emulsion having excellent polymerization stability and standing stability and a redispersible powder. Specifically, the present invention relates to an aqueous emulsion of a polymer obtained by polymerizing an acrylic monomer in the presence of a polyvinyl alcohol containing an acetoacetic ester group; wherein the polyvinyl alcohol containing an acetoacetic ester group has block character [?] of 0.3 to 0.6, hydrolysis degree of at least 97% by mol and acetoacetic esterification degree of 0.01 to 1.5% by mol, and the value obtained by dividing the maximum value by the minimum value of the respective average acetoacetic esterification degree for each of the polyvinyl alcohol containing an acetoacetic ester group separated by particle size of 44 to 74, 74 to 105, 105 to 177, 177 to 297, 297 to 500 and 500 to 1680 ?m is 1.0 to 3.0. Also, the present invention relates to a redispersible fiber obtained by drying the aqueous emulsion.

Abstract: The present invention provides a polymeric-type antistatic agent containing a polymer composition consisting of a polymeric-type antistatic agent containing a resin or/and an elastomer as a main component thereof; or/and a thermoplastic resin having a polar group or/and an elastomer having the polar group. At least one kind of an anion-containing salt, having a fluoro group and a sulfonyl group, is added to the polymer composition without intermediary of a medium consisting of a low-molecular-weight polyether-containing compound or a low-molecular-weight polar compound whose number-average molecular weight is not more than 5000. The present invention also provides a composition, for a conductive roller or the like, containing polymer components and the polymeric-type antistatic agent dispersed in the polymer components.

Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more additives selected from the group consisting of a) phenylalkyl-oxy-alkyl metal sulfonates of the formula b) alkyl-oxy-alkyl metal sulfonates of the formula c) polyethyleneoxy-alkyl metal sulfonates of the formula d) alkyl-polyethyleneoxy-alkyl metal sulfonates of the formula and e) alkyl-1,2-disulfonate metal sulfonates where m is 0, 1 or 2, n is an integer from 1 to 6, p is an integer from 1 to 16, R is alkyl of 1 to 24 carbon atoms and M is Na, K or Li. into a plurality of fibers or filaments and cooling the fibers or filaments.

Abstract: A process for producing a fire resistant polycarbonate composition comprises preparing an aqueous solution of a flame retardant salt; and compounding the aqueous solution of the flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition. The process reduces the level of haze, color and inclusions compared to fire resistant polycarbonate compositions compounded with the same flame retardant salt in solid form.

Abstract: A polyorganosiloxane emulsion composition characterized by comprising (A) a polyorganosiloxane, (B) an N-acylalkyl taurine and/or a salt thereof, and (C) water, the content of cyclic organosiloxane oligomers in said component (A) being within 3.5 wt. %, and a cosmetic raw material characterized by consisting of said polyorganosiloxane emulsion composition. The emulsion composition is characterized by superior cosmetic functionality in terms of moisture and smoothness.

Abstract: A method is disclosed for stabilizing a halogen-containing polymer wherein the method comprises adding to said polymer a thermally stabilizing amount of a mixture comprising at least one polyalkylene glycol and at least one metal salt of a strong acid selected from the group consisting of perchloric acid, trifluoroacetic acid, trifluoromethanesulfonic acid, alkylsulfuric acid, phosphotungstic acid, HPF6, HBF4, and HSbF6.

Abstract: The present invention provides a polymeric-type antistatic agent containing a polymer composition consisting of a polymeric-type antistatic agent containing a resin or/and an elastomer as a main component thereof; or/and a thermoplastic resin having a polar group or/and an elastomer having the polar group. At least one kind of an anion-containing salt, having a fluoro group and a sulfonyl group, is added to the polymer composition without intermediary of a medium consisting of a low-molecular-weight polyether-containing compound or a low-molecular-weight polar compound whose number-average molecular weight is not more than 5000. The present invention also provides a composition, for a conductive roller or the like, containing polymer components and the polymeric-type antistatic agent dispersed in the polymer components.

Abstract: Polyimide/metal laminates having a polyimide film and a metal layer laminated thereon, wherein the polyimide film contains titanium element and flexible print wiring boards with the use of the same are disclosed. The polyimide/metal laminates are excellent in adhesion under the ordinary conditions and, moreover, can sustain the adhesive strength at a high ratio after exposure to high temperature or high temperature and high humidity. Owing to these characteristics, these polyimide/metal laminates are appropriately usable in flexible print wiring boards, multi-layered print wiring boards, rigid flex wiring boards, tapes for TAP, semiconductor packages such as CFOs and multi chip modules (MCMs), magnetic recording films, coating films for aerospace materials and filmy resistance elements.

Abstract: The object of the present invention is to provide a flame-retardant thermoplastic resin composition, which comprises: 100 parts by weight of a thermoplastic resin (A), 0.1 to 30 parts by weight of a polyorganosiloxane-containing graft copolymer (B) obtained by polymerizing, in at least one stage, a monomer (B-3) comprising a polyfunctional monomer (B-2) containing at least two polymerizable unsaturated bonds within the molecule thereof, and/or a vinyl monomer (B-4) in the presence of polyorganosiloxane particles (B-1), 0.0005 to 5 parts by weight of at least one metal salt (C) selected from the group consisting of alkali metal salts and bivalent or further polyvalent metal salts, and 0.05 to 2 parts by weight of a fluororesin (D).

Abstract: It has now been surprisingly found that addition of a phosphorous-containing oxy acid to a glass-filled polycarbonate composition substantially improves its fire retardant performance. Thus, the present invention provides a method for making a flame-retarded glass-filled polycarbonate resin comprising adding to the resin an effective flame-retardant amount of a phosphorous-containing oxy acid. Where appropriate, the melt strength of the polycarbonate is enhanced by the addition of an antidrip agent and the performance can be further enhanced by the addition of a flame retardant. Use of such a composition results in superior fire-retardant performance.

Abstract: The present invention provides a thermoplastic resin composition characterized by (1) having an excellent appearance even when it is extruded into a molded piece at a high output, (2) retaining its impact strength even after heat exposure, and (3) having less foreign matter generation at the time of production. According to the present invention, in a composition comprising a polyamide, a polyphenylene ether and a block copolymer, a mixture of a block copolymer having a number average molecular weight of less than 120,000 and a block copolymer having a number average molecular weight of 120,000 or more is used as the block copolymer.

Abstract: The invention relates to a process to make stabilized PVC wherein use is made of at least one compound of the formula wherein M is selected from the group consisting of alkali metals, alkali earth metals, Al, and transition elements, and R is selected from the group consisting of substituted, linear or branched, alkyl, cycloalkyl, aryl, alkaryl, and aralkyl moieties, the substituents comprising at least one or more electron-withdrawing groups, as a color stability booster.

Abstract: The invention relates to a thermoplastic composition comprising at least a copolymer of ethylene and an ?,?-unsaturated C3-C8 carboxylic acid, from about 10 to 99.9% neutralized with Lithium, and at least from about 0.01 wt % to about 2 wt % of a migrating antistatic agent. The invention also relates to films, sheet and molded articles comprising the above composition. The composition, film, sheet or molded article of the invention show good antistatic properties and preferably have a surface resistivity equal or less than 10E11. The composition, film, sheet or molded article of the invention can in particular be used as a protective transparent coating or layer on abrasion and scratch-exposed objects.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (1) wherein R1 is methyl or ethyl, R2, R3? and R4 are each independently of the others C6-C24alkyl or C6-C24alkenyl, m is a number from 0.3 to 1.0 and n is a number from 0 to (1.0 m), the compound being suitable for use as a pigment dispersant and rheology improver. Also claimed are modified pigments having that compound on their surface, and also pigment compositions and dispersions comprising that compound.

Abstract: The invention relates to a compound of the 1-aminoanthraquinone, anthanthrone, anthrapyrimidine, quinacridone, dioxazine, diketopyrrolopyrrole, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perinone, perylene, phthalocyanine, pyranthrone or thioindigo series, which compound has one or more sulfonate groups of formula (I) wherein R1 is methyl or ethyl, R2 is C6-C24alkyl, C6-C24alkenyl or C7-C24aralkyl, R3 and R4 are each independently of the other a chain consisting 1, 2 or 3 members, each member independently of any other(s) being (CH2))2O—, —(CH2)3O—, CH(CH3)CH2O—, —CH2CH(CH3)—O— or —CH2CH(CH2O—)O—and the chains being terminated by H, CH3, C2H5 ?or C(═O)CH3, m is a number from 0.3 to 1.0 and n is number from 0 to (1.0−m), the compound being suitable for use as a pigment dispersant and rheology improver.