Abstract: Disclosed are ionomer compositions neutralized by a combination of cesium and potassium that have antistatic properties. Also disclosed are articles, including laminates and monolayer or multilayer structures comprising such compositions to which neither powders nor dusts easily adhere electrostatically.

Abstract: Regrind is mixed with at least one low density metallocene polyethylene to increase the amount of regrind that can be used in a thermoformed article.

Abstract: This invention relates to poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments, methods for making the same and end uses thereof.

Abstract: The present invention relates to novel molding compositions based on semicrystalline engineering thermoplastics which, in conventional processing techniques, give moldings with reduced surface gloss. A feature of the molding compositions is that they comprise, in a polymer matrix, if appropriate with the usual additives, polymer particles with a median size d50 of from 0.1 ?m to 100 ?m, and comprise at least one other incompatible or semicompatible polymer which has not been chemically crosslinked, and also, if appropriate, comprise salt-like additives. The invention further relates to moldings which are produced by means of conventional processing techniques, in particular via injection molding, from these matt-effect molding compositions.

Abstract: A polymer composition comprises (a) least 40 wt % (based upon the weight of the composition) of a cyclic olefin polymer comprising at least one acyclic olefin and at least 20 wt % of one or more cyclic olefins (based upon the weight of the cyclic olefin polymer), wherein at least a portion of the cyclic olefin polymer has a glass transition temperature of greater than 100° C.; (b) an acyclic olefin polymer modifier in an amount up to 40 wt % (based upon the weight of the composition); and (c) at least 10 wt % (based upon the weight of the composition) of one of more fillers. The polymer composition has a notched Izod impact resistance measured at 23° C. of greater than 100 J/m and a flexural modulus (1% secant method) of greater than 1400 MPa.

Abstract: This invention is a polyester resin composition comprising 100 parts by weight of a resin composition consisting of 60 to 95 wt % of (a) a polyester resin and 5 to 40 wt % of (b) an olefin-based resin, and 0.5 to 30 parts by weight of (c) one or more resins selected from polyphenylene sulfide resins and liquid crystal resins, wherein said olefin-based resin (b) is composed of (b-1) a functional group-containing olefin copolymer having at least one kind of functional groups selected from carboxylic acid groups, carboxylic anhydride groups, carboxylic ester groups, metal carboxylate groups and epoxy groups and (b-2) an ethylene/?-olefin copolymer obtained by copolymerizing ethylene and an a-olefin with 3 to 20 carbon atoms; and the polyester resin (a) forms a continuous phase, while the olefin-based resin (b) is dispersed as particles with an average particle size of 0.01 to 2 ?m in the composition.

Abstract: Disclosed are toughened poly(hydroxyalkanoic acid) resin compositions comprising poly(hydroxyalkanoic acid), such as polylactic acid, and an impact modifier comprising an ethylene copolymer made from monomers (a) ethylene; (b) one or more olefins of the formula CH2?C(R1)CO2R2, where R1 is hydrogen or an alkyl group with 2-8 carbon atoms and R2 is an alkyl group with 1-8 carbon atoms, such as methyl, ethyl, or butyl; and (c) one or more olefins of the formula CH2?C(R3)CO2R4, where R3 is hydrogen or an alkyl group with 1-6 carbon atoms, such as methyl, and R4 is glycidyl. The ethylene copolymer may further be made from carbon monoxide monomers. The compositions may further comprise one or more ethylene/acrylate and/or ethylene/vinyl ester polymers, ionomers, and cationic agents.

Abstract: The present invention provides fluoropolymer laminates having isotropic properties. For example, an embodiment in which multiple fluoropolymer sheets having a liquid crystalline polymer oriented in the fibrous state in the melt processible fluoropolymer are laminated, despite having the fibrous LCP oriented in one direction in each single extruded sheet, makes it possible to laminate in such a way as to compensate for their orientation directions, the laminate thereby becoming isotropic as regards physical properties. The laminates also have low linear coefficient of expansion and low thermal shrinkage as well as elevated tensile modulus and low dielectric constant.

Abstract: The invention relates to thermoplastic compositions comprising a polymer matrix and an additive which modifies the rheological behavior of the matrix in the molten state. The purpose of the invention is to provide a preferably non-reactive additive which can be dispersed in the matrix and which can be used to obtain a good compromise in terms of rheological properties/mechanical properties. According to the invention, the additive is a hyperbranched polymer which is functionalized by R<2> radicals, R<2> being a radical of the following type: substituted or non-substituted hydrocarbon, of the silicon type, linear or branched alkyl, aromatic, arylalkyl, alkylaryl or cycloaliphatic, which can comprise one or more unsaturations and/or one or more heteroatoms.

Abstract: Low-cure powder coating compositions are disclosed, comprising at least one epoxy-containing resin and/or at least one siloxane-containing resin, and at least one material having the structure wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is each R3 and R4 are independently alkyl or aryl groups having 1 to 8 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a—R2— when Z is nitrogen; a and b are integers; a is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin. The material can optionally be reacted with an acidic hydrogen-containing compound. Some compositions are curable without using crosslinking agents or accelerators.

Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

Abstract: A composition comprises a polyester-polycarbonate polymer comprising isophthalate-terephthalate-resorcinol ester units and carbonate units, a first polyester selected from poly(ethylene terephthalate), poly(ethylene isophthalate), or a combination thereof, and a second polyester comprising butylene terephthalate units, cyclohexanedimethylene terephthalate units, or a combination of cyclohexanedimethylene terephthalate units and ethylene terephthalate units. The composition can be extruded into pellets that are clear and colorless. The composition can further be molded into articles having a percent haze value less than or equal to 10 percent, and total luminous transmittance value of greater than or equal to 70 percent, measured in accordance with ASTM D1003-00. Also disclosed is a method for forming the compositions, and articles prepared therefrom.

Abstract: A composition comprises a polyester-polycarbonate polymer comprising isophthalate-terephthalate-resorcinol ester units and carbonate units, a first polyester comprising repeating units derived from cyclohexane dicarboxylic acid or a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof, and a second polyester comprising units derived from isophthalic and/or terephthalic acid and a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof. The composition can be extruded into pellets that are clear and colorless. The composition can further be molded into articles having a percent haze value less than or equal to 10 percent, and total luminous transmittance value of greater than or equal to 70 percent, measured in accordance with ASTM D1003-00. Also disclosed is a method for forming the compositions, and articles prepared therefrom.

Abstract: The invention provides heat-curable thixotropic mixtures containing carbamate and/or allophanate groups, including at least one oligomer and/or polymer containing at least one of carbamate and allophanate groups, and at least one thixotropic agent that is a urea derivative preparable by reacting at least one amine and/or water with at least one isocyanate in the presence of at least one amino resin. The invention further provides processes for preparing the mixtures and coating materials, adhesives and sealing compounds prepared from the mixtures.

Abstract: Provided herein is a PEA polymer blend and coatings or implantable devices formed therefrom. The PEA polymer blend is formed of a PEA polymer and a material capable of hydrogen bonding with the PEA. The PEA polymer blend can form a coating on an implantable device, one example of which is a stent. The coating can optionally include a biobeneficial material and/or optionally with a bioactive agent. The implantable device can be used to treat or prevent a disorder such as one of atherosclerosis, thrombosis, restenosis, hemorrhage, vascular dissection or perforation, vascular aneurysm, vulnerable plaque, chronic total occlusion, claudication, anastomotic proliferation for vein and artificial grafts, bile duct obstruction, ureter obstruction, tumor obstruction, and combinations thereof.

Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

Abstract: Toughened poly(lactic acid) resin compositions comprising poly(lactic acid) and an impact modifier comprising an ethylene copolymer made from monomers (a) ethylene; (b) one or more olefins of the formula CH2?C(R1)CO2R2, where R1 is hydrogen or an alkyl group with 2-8 carbon atoms and R2 is an alkyl group with 1-8 carbon atoms, such as methyl, ethyl, or butyl; and (c) one or more olefins of the formula CH2?C(R3)CO2R4, where R3 is hydrogen or an alkyl group with 1-6 carbon atoms, such as methyl, and R4 is glycidyl. The ethylene copolymer may further be made from carbon monoxide monomers. The compositions may further comprise one or more ethylene/acrylate and/or ethylene/vinyl ester polymers, ionomers, and cationic grafting agents.

Abstract: This invention relates to a blend of biodegradable polymers comprising: (A) about 5% to about 95% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0° C., (B) about 5% to about 95% by weight of at least one rigid biodegradable polymer (B) having a glass transition greater than about 10° C., and (C) about 0.25 to about 10 weight % of at least one compatibilizer (C), said percentages being based on the total weight of the polymer blend; where the polymer blend has a higher zero shear melt viscosity than polymers (A) and (B) separately.

Abstract: Toughened poly(lactic acid) resin compositions comprising poly(lactic acid) and an impact modifier comprising an ethylene copolymer made from monomers (a) ethylene; (b) one or more olefins of the formula CH2?C(R1)CO2R2, where R1 is hydrogen or an alkyl group with 2-8 carbon atoms and R2 is an alkyl group with 1-8 carbon atoms, such as methyl, ethyl, or butyl; and (c) one or more olefins of the formula CH2?C(R3)CO2R4, where R3 is hydrogen or an alkyl group with 1-6 carbon atoms, such as methyl, and R4 is glycidyl. The ethylene copolymer may further be made from carbon monoxide monomers. The compositions may further comprise one or more ethylene/acrylate and/or ethylene/vinyl ester polymers, ionomers, and cationic grafting agents.

Abstract: A resin composition for coating a metal sheet comprising a polyester resin (A) having an intrinsic viscosity of 0.5-2.0 dl/g, an elastomer resin (B) and a vinyl polymer (C) containing at least 1 wt % of a unit with a polar group, and having a structure wherein the elastomer resin (B) is finely dispersed in the polyester resin (A) and at least a portion of the elastomer resin (B) is capsulated by the vinyl polymer (C). Also, metal-sheet-coating resin films using the resin composition, resin-coated metal sheets coated with the resin film, and resin-coated metal containers made by molding the resin-coated metal sheets are disclosed.

Abstract: The present invention relates to compatible blends of, per se incompatible, thermoplastic molding compositions, to methods for the production thereof, and to the use of the blends according to the present invention to produce films, fibers and molded articles.

Abstract: Crystallizable polyester compositions containing an aliphatic polyamide crystallization nucleator exhibit controllable and adjustable crystallization rates upon cooling from the melt and are thermoformable in melt to mold processes.

Abstract: A process for preparing an RPET polymer blend component comprises providing a quantity of RPET flakes, comminuting the RPET flakes to prepare RPET particles having an average mean particle size from about 500 microns to about 5 microns, adding at least one specialty additive to the RPET particles, and mixing the RPET particles and specialty additive, to prepare a homogeneous blend of RPET carrier and specialty additive.

Abstract: A crystalline biodegradable resin composition obtained by annealing a composition comprising an aliphatic polyester and a modified elastomer.

Abstract: Disclosed are polymer compositions comprising: (A) a first component comprising about 1 to 99 percent by weight at least one polyester (A) comprising: (1) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixtures thereof, and (2) diol residues selected from the group consisting of 1,4 -cyclohexanedimethanol residues, ethylene glycol residues and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is less than 0.

Abstract: An antistatic film having an antistatic coating film on at least one surface of a polyester film, the antistatic coating film comprising a polymer having a polymerized unit represented by the following formula (1): wherein R1 and R2 each independently represent a hydrogen atom or a methyl group, R3 represents an alkylene group having 2 to 10 carbon atoms, R4 and R5 each independently represent an alkyl group having 1 to 5 carbon atoms, R6 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 2 to 10 carbon atoms, and Y? represents a halogen ion, a halogenated alkyl ion, a nitrate ion, a sulfate ion, an alkyl sulfate ion, a sulfonate ion or an alkyl sulfonate ion. The film is used in such applications requiring an antistatic property such as a protective film for a liquid crystal polarizing plate.

Abstract: A plastic composition including polymeric nanoparticles having a diameter of 1 to 100 nanometers, and a polymeric component. Also provided is a method for providing such a plastic composition.

Abstract: A thermosetting protective and/or decorative coating composition that includes a co-reactable solid, particulate mixture of a film-forming material that includes a copolymer containing functional groups and a crosslinking agent having at least two functional groups that are reactive with the functional groups in the copolymer. The film-forming material makes up from 20 to 95 wt. % and the crosslinking agent makes up from 5 to 80 wt. % of the composition. The composition is applied as a coating and cured, forming a bicontinuous morphology where the film-forming material and the crosslinking agent form separate phases resulting in a low gloss coating as indicated by a specular gloss measurement of not more than 10 gloss units measured at 60° with an appropriate instrument. A method of coating a substrate using the composition, substrates coated using the method, and a multi-component composite coating composition that includes the composition are disclosed.

Abstract: Low-cure powder coating compositions are disclosed, comprising at least one epoxy-containing resin and/or at least one siloxane-containing resin, and at least one material having the structure wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is each R3 and R4 are independently alkyl or aryl groups having 1 to 8 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a —R2— when Z is nitrogen; a and b are integers; a is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin. The material can optionally be reacted with an acidic hydrogen-containing compound. Some compositions are curable without using crosslinking agents or accelerators.

Abstract: A thermoplastic resin composition comprising a blend obtainable by blending 0.1 to 99% by weight of (a) a fluorine-containing polymer having a number-average molecular weight of 2000 to 1000000 and having hydroxy group or epoxy group at least at one of end portions of a main chain and side chain of the polymer, and 1 to 99.9% by weight of (b) a heat resisting thermoplastic resin having a crystalline melting point or glass transition temperature of not less than 150° C. The present invention can provide a composition comprising various heat resisting thermoplastic resins and a fluorine-containing polymer having a functional group which is capable of developing an affinity with said resins and forming a uniform dispersion.

Abstract: Method for making a solvent-containing coating material comprising 5 to 70% by weight of at least one mixture of substances (A). The mixture of substances is obtained by copolymerizing in at least one hydroxy-group containing reactive diluent a mixture (A1) of olefinically unsaturated monomers that contain a1) 1 to 90% by weight, based on mixture (A1), of at least one cycloaliphatic monomer and a2) 0 to 90% by weight, based on mixture (A1), of at least one hydroxy-group containing monomer. The coating material further contains 5 to 70% by weight of at least one hydroxy-group containing polyaddition resin (polyadduct) (B) with a Mn of 800 to 3,500 and 5 to 70% by weight of at least one cross-linking agent (C) for thermally cross-linking the material. The weight of A, B, and C are based on the solid content of the coating material.

Abstract: The present invention provides a low temperature curing coating powder composition comprising a mixture of a high gloss film-forming system and a low gloss film-forming system. Preferably, the high gloss film-forming system comprises a GMA (glycidyl methacrylate) resin, a curing agent, and a catalyst and forms a coating having a gloss greater than 80% measured at 60°. Preferably the low gloss film-forming system comprises a carboxyl terminated polyester, acrylic resin and a catalyst and forms a coating having a gloss less than 50% measured at 60°. The composition of the present invention provides coatings having a control gloss, which can range from a low to a high gloss and is useful for coating heat-sensitive substrates.

Abstract: A binder mixture comprises at least one polymer (A) with saturated main chain that is not a polyester and at least one polyester (B) with a saturated and/or unsaturated main chain, where (i) one of the two components (A) or (B) contains structural units I and/or II, or both components (A) and (B) contain structural units I and/or II, ?in which the index n is an integer from 1 to 10; and where (ii) at least polyester (B) that contains no structural units I and/or II contains maleic and/or fumaric esters incorporated in its main chain.

Abstract: A thermoplastic resin composition material 1 includes a resin portion (a) 2 made of a thermoplastic resin (A); elastomer portions (b) 3 made of a thermoplastic elastomer (B) having substantially no compatibility with the thermoplastic resin (A) and having a glass transition temperature of lower than or equal to ?40° C.; and polymer portions (c) 4 made of a high polymer (C) having substantially no compatibility with the thermoplastic resin (A) and the thermoplastic elastomer (B), having a glass transition temperature or crystallization temperature of lower than or equal to ?50° C., and having a viscosity at 40° C. of 0.1 to 200000 cP. The material has a structure in which the elastomer portions (b) 3 are dispersed in the resin portion (a) 2, and the polymer portions (c) 4 are dispersed in the elastomer portions (b) 3. Accordingly, low-temperature impact resistance can significantly be improved without deterioration in the other inherent excellent physical properties of the thermoplastic resin.

Abstract: The invention concerns thermoplastic polyesters (such as PET or PBT) comprising, by weight, the total being 100%: 60 to 99% of thermoplastic polyester; 1 to 40% of impact modifier comprising: (a) a core-shell copolymer (A), (b) an ethylene copolymer (B) selected among ethylene copolymers (B1) and an unsaturated carboxylic acid anhydride, ethylene copolymers (B2) and an unsaturated epoxy compound and mixtures thereof, (c) a copolymer (C) selected among ethylene copolymers (C1) and an alkyl (meth)acrylate, ethylene copolymers (C2) and (meth)acrylic acid optionally neutralised and mixtures thereof. The invention also concerns an impact modifying composition which can be added in thermoplastic polyesters to improve their shock-proof properties and comprising constituents (A), (B) and (C).

Abstract: A polymer blend for fabricating medical products having a first 1,2 polybutadiene present from about 1% to about 99% by weight of the blend and having a first melting point temperature; and a second 1,2 polybutadiene present from about 1% to about 99% by weight of the blend and having a second melting point temperature higher than the first melting point temperature.

Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

Abstract: Disclosed are certain novel polyester compositions particularly useful for shaping or forming into containers and similar shaped articles by thermoforming procedures. The polyester compositions comprise a thermoplastic polyester, an impact modifier and a polyester crystallization rate enhancing component selected from poly(tetramethylene terephthalate) homo- and co-polymers. The polyester compositions exhibit improved crystallization rates as compared to similar compositions not including impact modifier or compositions using other types of crystallization rate enhancing components such as polyolefin-based polymers.

Abstract: The present invention provides a method for preparing flexible thermoplastic compositions that may be used separately or combined with up to fifty percent thermoplastic scrap. One embodiment of the invention comprises creating a melt-blend of blending composition, up to 50% by weight thermoplastic scrap and up to 15% by weight poly(ethyl-co-vinyl) acetate wherein the blending composition comprises an impact polypropylene, impact modifier and plasticizer. The polypropylene, impact modifier and plasticizer are selected to meet requirements of flexible thermoplastic compositions useful in vehicle interiors. In another embodiment of the invention a random polypropylene is used.

Abstract: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.

Abstract: A powder coating composition includes an acid-functional polyester resin and a matting agent selected from styrene-maleic anhydride copolymers and acid-functional acrylic resins. The compositions provide low gloss finishes at low curing temperatures, as well as consistent gloss over a wide range of curing temperatures.

Abstract: The present invention is a hydrolytically modified, biodegradable polymer and a method of making a hydrolytically modifiable a biodegradable polymer. In a preferred embodiment, the invention is a method of grafting polar groups onto biodegradable polymers and modified biodegradable polymer compositions produced by the method. The polymer compositions are useful as components in flushable and degradable articles. Water-sensitive polymer blends and method of making those polymer blends are also disclosed.

Abstract: A polymeric composition and process for making the same suitable for injection molding processes and procedures containing an olefinic polymer component selected from at least one a group which includes polyalkylenes, copolymers of polyalkylenes and a non-olefinic thermoplastic. The non-olefinic and olefinic polymeric components are present in random orientable locations in the initial polymeric composition. When injection molded against a temperature gradient, the resulting workpiece composed of the composition has distinctive regions of elevated non-olefinic concentration proximate the outwardly oriented surface and distinctive regions of elevated olefinic polymeric concentration proximate to interior regions of the workpiece. The non-olefinic thermoplastic may be at least one of thermoplastic polyamides, thermoplastic polyolefins and thermoplastic polycarbonates.

Abstract: The present invention relates to a coating composition, a process for its preparation, and to its use for the production of textured coated surfaces on heat-resistant substrates, in which coating composition is based on hydroxyl group-containing binders, cross-linking agents and particular amine compounds.

Abstract: A composition comprising a thermoplastic polymer having incorporated therein a crosslinked phase derived from the reaction of: (A) a copolymer made from ethylene and an unsaturated epoxide, a polyolefin grafted with an unsaturated epoxide, or a product having two epoxide groups, (B) a copolymer made from ethylene and an unsaturated carboxylic acid anhydride, and (C) a copolymer made from an unsaturated carboxylic acid or an ?,?-aminocarboxylic acid.

Abstract: Hydroxyl group-containing polymers which comprise moieties of polyesters and of addition polymers formed from olefinically unsaturated monomers, the polyesters containing units from aliphatic cyclic or polycyclic dihydroxy or polyhydroxy compounds or diepoxy or polyepoxy compounds A and aliphatic cyclic dicarboxylic or polycarboxylic acids B and the addition polymers containing units from olefinically unsaturated alkyl esters G of aliphatic, linear, branched or cyclic olefinically unsaturated monocarboxylic and/or dicarboxylic acids, olefinically unsaturated hydroxyalkyl esters H of one of the acids specified under G, at least one further olefinically unsaturated monomer I selected from vinylaromatics, vinyl esters, halogenated monomers, unsaturated nitriles, amides or diamides of unsaturated monocarboxylic acids, vinyl ethers, and allyl ethers, and also, where appropriate, carboxylic acids J, selected from the monocarboxylic acids specified under G or dicarboxylic acids specified under G in unesterified or m

Abstract: The invention relates to a composition and article for reducing food deposit adhesion to cookware. More specifically this invention relates to a resin composition comprising a polysulfone or polyethersulfone resin having a glass transition temperature of at least 180° C., a fluorinated polyolefin, and a fatty acid amide. The invention also relates to an article comprising the composition.

Abstract: An extrudable composition comprising a major amount of a thermoplastic host polymer, a fluorocarbon polymer and a dendritic material wherein the extrudate demonstrates reduced levels of surface defects.

Abstract: The present invention relates to polyetheresteramides (B) containing polyamide blocks comprising dicarboxylic acid sulphonates either as polyamide-block chain limiters or combined with a diamine as one of the constituent monomers of the polyamide block, and the containing polyether blocks consisting essentially of alkylene oxide units. The invention also relates to polyetheresteramides (B) containing polyamide blocks of the polyamide oligomer type of low molecular mass or of the copolyamide type which comprise dicarboxylic acid sulphonates and containing polyether blocks which are adducts of alkylene oxide with an aromatic diol. The invention also relates to antistatic or breathable polymer compositions comprising a thermoplastic polymer (A) and at least one of the above polyetheresteramides (B).