Abstract: An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. There is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30% by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0° C. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.

Abstract: It is disclosed an over-coating agent for forming fine patterns which is applied to cover a substrate having photoresist patterns thereon and allowed to shrink under heat so that the spacing between adjacent photoresist patterns is lessened, with the applied film of the over-coating agent being removed to form fine patterns, further characterized by comprising a water-soluble polymer which contains a monomeric component and a dimeric component, wherein the total content of the monomeric component and the dimeric component in the water-soluble polymer is reduced to 10 mass % or less, and a method of forming fine patterns using the same. By the present invention, even in reducing the pattern size on a substrate having thereon patterns having different pitches, the heat shrinkage of the over-coating agent can be controlled, irrespective whether the pitch is dense or isolate, thus achieving the pattern size reduction.

Abstract: A polyphenylene ether resin composition obtainable by melt-mixing a polyphenylene ether (A) comprising a structural unit (a) represented by the following formula (1): (wherein R1 and R2 each independently represent a hydrogen atom, a halogen atom, an optionally substituted alkyl group, and the like), and/or a structural unit (b) represented by the following formula (2): (wherein R3 and R4 each independently represent a hydrogen atom, a halogen atom, an optionally substituted alkyl group, and the like), with a nitrogen compound (B) comprising at least one group selected from the group consisting of primary amino groups, secondary amino groups and tertiary amino groups in a single molecule thereof, wherein the polyphenylene ether (A) comprises 0.1% by mass or more and 1.5% by mass or less of at least one type of aromatic hydrocarbon (C) containing 7 or 8 carbon atoms.

Abstract: Fiberglass mats, binder compositions, and methods for making the same are provided. In at least one specific embodiment, the fiberglass mat can include a plurality of glass fibers and a binder composition that includes a copolymer and one or more amines. The copolymer can include one or more unsaturated carboxylic acids, one or more unsaturated carboxylic anhydrides, or a combination thereof, and one or more vinyl aromatic derived units. The binder composition can have a weight average molecular weight (Mw) of about 500 to about 180,000. The fiberglass mat can have a thickness ranging from about 10 mils to about 1,000 mils, an average dry tensile strength of at least 50 lbs/3 inch; and an average Elmendorf tear strength of at least 300 gf.

Abstract: An elastomeric thermoplastic non-vulcanized terpolymer composition formed from acrylonitrile, styrene, and liquid 1,3-butadiene is disclosed herein. The terpolymer can have from 20 percent by weight to 50 percent by weight of the acrylonitrile, from 0.5 percent by weight to 20 percent by weight of the styrene, and from 30 percent by weight to 79.5 percent by weight of the butadiene. The acrylonitrile can be cross-linked to the styrene. The thermoplastic non-vulcanized terpolymer can include fillers, UV stabilizers, and plasticizers. Also disclosed is an article formed by the elastomeric thermoplastic non-vulcanized terpolymer and a process for making the composition.

Abstract: Insulation compositions for electric power cables having a polyolefin base polymer and an additive comprising either low molecular weight wax or polyethylene glycol (PEG) and optionally further comprising one or more hindered amine light stabilizers, amine antioxidants and other antioxidant blends are disclosed. Also disclosed are insulation compositions comprising a C2 to C8 alpha olefin in combination with a polyethylene homopolymer together with, optionally, one or more hindered amine light stabilizer and a liquid cresol antioxidant.

Abstract: The invention pertains to the redistribution of cyclic and linear polysiloxanes by a method comprising contacting and heating a surfactant, wherein the surfactant is the salt of a protonated amine or a quaternary amine compound, an aqueous hydrochloric acid solution and a silicone, wherein the silicone is a silicon hydrolysate, D5, or DO. When the method of the invention is conducted with silicone hydrolysate, it eliminates the need to separate the silicone hydrolysate into its linear and cyclic constituents prior to redistribution.

Abstract: The present invention relates to pigment colorants and more directly to a pigment composition comprising a pigment treated with a water-dispersible polyester or polyesteramide polymer in the presence of added water. The invention also relates to a method grinding a mixture containing a pigment with a water-dispersible polyester or polyesteramide in the presence of added water.

Abstract: Disclosed herein is a composition for preparing a halogen-free flame retarding masterbatch with low phosphorous content. The flame retarding masterbatch includes a phosphorus-containing flame retardant in an amount of about 0.1-6 wt %, a sulfur-containing flame retardant in an amount of about 0.1-5 wt %, a tertiary or quaternary ammonium salt having tri- or tetra-functional groups in an amount of about 0.1-5 wt %, a thermoplastic polymer in an amount of about 79-99.6 wt %, and a dispersing agent in an amount of about 0.1-5 wt % in the composition.

Abstract: Methods for making a crosslinked elastomeric composition and articles made of the same are provided. In at least one specific embodiment, an elastomeric composition comprising at least one propylene-based polymer is blended with at least one component selected from the group consisting of multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, and allyl isocyanurate; and blended with at least one component selected from the group consisting of hindered phenols, phosphites, and hindered amines. The propylene-based polymer can include propylene derived units and one or more dienes, and have a triad tacticity of from 50% to 99% and a heat of fusion of less than 80 J/g. The blended composition can then be extruded and crosslinked. The extruded polymer can be crosslinked using electron beam radiation having an e-beam dose of about 100 KGy or less. The crosslinked polymers are particularly useful for making fibers and films.

Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.

Abstract: The present invention describes a process for preventing the formation of aldehydic contaminants in polyether polyols, polyester polyols or polyurethanes which comprises incorporating into said polyether polyols, polyester polyols or polyurethanes an effective amount of a) a phenolic antioxidant, b) one or more compounds selected from (i) aminic antioxidants, (ii) benzofuran-2-ones, and (iii) phosphites or phosphonites, or (iv) mixtures thereof.

Abstract: An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. In addition, there is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30% by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0° C. Furthermore, there is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.

Abstract: An object of the present invention is to provide a pressure-sensitive adhesive composition excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. In addition, there is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30% by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0° C. Furthermore, there is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.

Abstract: This invention relates to: (1) a transparent composite material comprising a cured product of a resin composition having from 60 to 90% by mass of a vinyl ester resin composition which has a vinyl ester resin being synthesized from an aliphatic epoxy compound and from 10 to 40% by mass of synthetic smectite that is organized with a quaternary ammonium salt and/or a quaternary phosphonium salt and has a number average particle diameter of from 10 to 300 nm and an aspect ratio of from 10 to 300, the composition being cured, (2) a method for producing the transparent composite material, wherein the raw material composition for the composite material before curing is cured with an electron beam (EB), an ultraviolet ray (UV) or heat, and (3) a display device and a substrate for a solar cell comprising the transparent composite material as a substrate.

Abstract: An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. There is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30% by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0° C. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.

Abstract: The present invention relates to the use, for stabilizing polymers, in particular polyolefins, with respect to exposure to UV radiation, of fine-particle polymer powders comprising at least one UV absorber. The present invention further relates to stabilizer mixtures for stabilizing polymers with respect to exposure to UV radiation, oxygen and heat, which, inter alia, comprise these polymer powders, and to a process for stabilizing polymers, in particular polyolefins, with respect to exposure to UV radiation, oxygen and heat, which comprises adding, to the polymers, in particular to the polyolefins, an effective amount of these stabilizers.

Abstract: An aqueous dispersion type fluorine-containing water- and oil-repellent composition containing a polymer of a perfluoroalkyl group-containing ethylenically unsaturated monomer dispersed in an aqueous medium. The composition also contains a nonionic surfactant having an HLB value of at most 11 and a cationic surfactant. A homopolymer of at least one monomer constituting the polymer has Tg of at most 50° C.

Abstract: Provided are a coating formation agent for pattern micro-fabrication, and a method for forming a micropattern using the same, which enables: suppression and/or control of variation of the micro-fabrication size without being accompanied by defect generation following the micro-fabrication process even in ultramicro-fabrication particularly on the order of no greater than 120 nm, or a micro-fabrication process of a resist pattern with an increased aspect ratio; maintainance of a favorable resist pattern configuration after the micro-fabrication process while keeping the desired micro-fabrication size; and also avoidance of defects resulting from development of bacteria and the like after application of the coating formation agent for pattern micro-fabrication.

Abstract: The present invention is method of manufacturing a wax dispersion. The method includes forming a solution of a solvent and a dispersant, the dispersant being a polymer of partially or fully hydrogenated styrene butadiene wherein the styrene to butadiene ratio is from 20 to 90. Wax is added to the solution to form a slurry. The particle size of the wax is reduced through communition of the slurry. The wax dispersion can be sued for the manufacture of toner particles.

Abstract: The composition for forming silica based coating of the invention comprises siloxane resin such as an alkoxysilane as component (a), a solvent such as an alcohol capable of dissolving the siloxane resin as component (b), an ammonium salt, etc. as component (c) and a thermal decomposing/volatile compound as component (d), wherein the stress of the coating obtained by heat treatment at 150° C./3 min is 10 MPa and the specific permittivity of the silica based coating obtained by final curing is less than 3.0. The composition for forming silica based coating according to the invention can form a silica based coating having low permittivity, excellent adhesion and sufficient mechanical strength.

Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.

Abstract: The present invention relates to an aqueous coating composition for coating a photoresist pattern, comprising a polymer comprising at least one unit with an alkylamino group, where the unit has a structure (1), where, R1 to R5 are independently selected from hydrogen and C1 to C6 alkyl, and W is C1 to C6 alkyl. The invention also relates to a process for imaging a photoresist layer using the present composition.

Abstract: The instant invention relates to styrene butadiene styrene based pressure sensitive adhesive compositions with improved photo-oxidation resistance containing N-methyl substituted sterically hindered amines as stabilizers. Further aspects of the invention are a process for the stabilization of butadiene based pressure sensitive adhesive compositions and the use of N-methyl substituted sterically hindered amines as stabilizers for styrene butadiene styrene based pressure sensitive adhesives.

Abstract: The present invention provides a welded article having improved weld line strength, said article comprising a resin composition wherein said resin composition comprises at least one polyphenylene ether, at least one poly(alkenylaromatic) compound and at least one polyalkyleneimine. In a preferred embodiment, the welded article has been manufactured using at least one of ultrasonic welding and vibration welding, e.g., linear friction welding and spin friction welding. In another preferred embodiment, the welded article has a peak weld line stress of at least 800 psi, preferably of at least 1000 psi.

Abstract: This invention relates to a silica reinforced rubber composition containing an ionic compound and article having a component thereof. The invention particularly relates to an article such as a rubber tire having a component of such rubber composition. Said ionic compound is composed of a combination of an organic cation moiety and an organic or inorganic anion moiety. Said ionic compound is desirably an ionically conductive ionic compound. The invention particularly relates to improvement of one or more physical properties of a rubber composition by an inclusion of such ionic compound and/or providing a path of least electrical resistance for a electrically resistive component of an article such as a tire by an inclusion in the rubber composition of said component of an ionically conductive ionic compound composed of a combination of an organic cation moiety and an organic or inorganic anion moiety.

Abstract: Boron is removed from an aqueous boron solution by contacting with the aqueous boron solution with a water-soluble cationic polyelectrolyte, and at least one of polyvinyl alcohol and anionic-modified polyvinyl alcohol under an alkaline condition, and then removing the generated coagulation.

Abstract: Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.

Abstract: The present invention provides a plastisol composition which combines low temperature baking property and storage stability which are comparable to those of the prior polyvinyl chloride plastisols and has a low-temperature flexibility. The plastisol composition according to the present invention comprises an acrylic plastisol consisting of a plasticizer having acrylic resin particles and a filler dispersed therein and therewith formulated a blocked urethane prepolymer wherein free isocyanate groups of a terminal isocyanate containing urethane prepolymers have been blocked or a blocked polyisocyanate compound and a latent curing agent which is particulate solid at normal temperature, has a melt point of 60° C. or higher, and is insoluble in the plasticizer at 40° C. or lower.

Abstract: Variable resistance PEDT/PSS buffer layers are provided for use in electroluminescent devices such as, e.g., OLEDs. In accordance with another embodiment, there are provided OLEDs comprising variable resistance PEDT/PSS buffer layers. In accordance with a further embodiment, methods have been developed for varying the conductivity of a PEDT/PSS layer cast from aqueous solution onto a substrate, by adding a co-solvent to the aqueous solution of PEDT/PSS prior to casting.

Abstract: The invention relates to anti-skinning agents containing mixtures of organic compounds (combinations of additives), whereby the organic compounds are selected from the groups of (a) organic hydroxylamines and (b) alkylamines and/or alkyl alkanolamines and also relates to compositions containing the combination, especially oxidatively drying paints or coating compositions and article coated with such oxidatively drying paints or coating compositions.

Abstract: Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.

Abstract: Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.

Abstract: The present invention provides a thermoplastic polymer composition mainly comprising a block copolymer prepared by extending, with a specific polyurethane component, the polymer chain of a block copolymer, which may be hydrogenated, having a polymer block of an aromatic vinyl compound and a polymer block of a conjugated diene. The thermoplastic polymer composition according to the present invention is excellent in handling properties and melt-moldability, because it shows non-tackiness. By using the thermoplastic polymer composition according to the present invention, a molded article having high qualities can be produced with good productivity.

Abstract: Ethylene polymer composites, concentrates and a process utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organically modified clay and may also contain a compatibilizng agent, depending on the base resin used.

Abstract: The invention provides a method for increasing the viscosity of C4–C7 isoolefin copolymers including halomethylstyrene derived units by mixing the copolymer with a hindered amine or phosphine of the structure R1 R2 R3 N or R1 R2 R3 P wherein R1, R2 and R3 are preferably lower and higher alkyl groups. The resulting ionically associated, amino or phosphine modified elastomers are used to prepare thermoplastic elastomer blend compositions, including dynamically vulcanized compositions, containing more finely dispersed elastomers which results in compositions having improved mechanical properties.

Abstract: The present invention relates to a stabilizer composition comprising a) at least one sterically hindered phenol, b) at least one phosphorus-containing secondary antioxidant, and c) at least one Leucine compound, wherein the weight ratio of component (a) to component (b) to component (c) is from 1:5:3 to 1:0,5:0,1 for the stabilization of polyolefine-based thermoplastic polymers against degradation, crosslinking and/or discoloration due to the exposure to heat and/or light, especially in the presence of oxygen.

Abstract: The present invention is a composition and a method of forming a composition, the composition comprising at least a halogenated elastomer and an amine or phosphine. An additional rubber component may be present in the composition of the invention. In one embodiment, the halogenated elastomer is a isoolefin copolymer comprising a halomethylstyrene derived unit. The amine or phosphine compound is represented by the formula (R1R2R3)Q, wherein Q is a Group 15 element, and wherein R1 is either hydrogen or a C4 to C30 hydrocarbyl group, R2 is either hydrogen or a C1 to C30 hydrocarbyl group; and R3 is either hydrogen or a C1 to C30 hydrocarbyl group provided that at least one of R1, R2 and R3 is not hydrogen.

Abstract: Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKa between about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKb between about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.

Abstract: An ion exchange fluorocarbon resin precursor composition obtained by removing liquid components from a mixed solution of a dispersion of an ion exchange fluorocarbon resin precursor and a dispersion of tetrafluoroethylene polymer (PTFE).

Abstract: A material comprising a heated mixture of (A) an olefin-unsaturated carboxylic acid copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylate copolymer, a metal ion neutralized product thereof, or a mixture thereof, (B) a polyurethane elastomer, and (C) an organic or inorganic basic compound has improved thermal stability, flow and moldability. Using the material, golf balls having good rebound are effectively manufactured.

Abstract: A one-step direct method of making a high molecular weight functionalized polyolefin aqueous emulsion is provided. In this one-step direct method, a functionalized polyolefin having a molecular weight of at least 10,000, a fatty acid, a base, a surfactant, and water are heated in a pressure reaction vessel to a temperature above the emulsification temperature of the polyolefin with agitation for a period of time sufficient to form an aqueous emulsion. This high molecular weight functionalized polyolefin aqueous emulsion can be added to a sizing composition and applied directly onto glass fibers in the glass fiber manufacturing process.

Abstract: A one-step direct method of making a high molecular weight functionalized polyolefin aqueous emulsion is provided. In this one-step direct method, a functionalized polyolefin having a molecular weight of at least 10,000, a fatty acid, a base, a surfactant, and water are heated in a pressure reaction vessel to a temperature above the emulsification temperature of the polyolefin with agitation for a period of time sufficient to form an aqueous emulsion. This high molecular weight functionalized polyolefin aqueous emulsion can be added to a sizing composition and applied directly onto glass fibers in the glass fiber manufacturing process.

Abstract: The thermal stability of a polymer is improved by blending, before melt processing, (1) a polymer selected from (a) olefin polymers, (b) polymers of vinyl-substituted aromatic compounds, (c) polymers of substituted acrylic esters, and (d) graft copolymers comprising a backbone of a propylene polymer material having a substituted acrylic ester graft polymerized thereto, and (2) about 0.1% to about 5% of at least one unsaturated aliphatic compound having a molecular weight of at least 200 and an iodine number of at least 10, e.g., soybean oil.

Abstract: Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula (I): [R—S(═O)m—CH2—CH(OH)—CH2]n—N(R1)2−n—R2, in which R is C4-C20alkyl, hydroxyl-substituted C4-C20alkyl; phenyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl, cyclohexyl or —(CH2)qCOOR3, and, if m is 0, R may additionally be (a); and, if n is 1 and R4 is hydrogen, R may additionally be R2—R1N—CH2—CH(OH)—CH2—S(═O)m—(CH2)x— or R2—R1N—CH2—CH(OH)—CH2—S(═O)m—CH2—CH2—(OCH2—CH2)y—, R1 is hydrogen, cyclohexyl or C3-C12alkyl, R2 is (b), R3 is C1-C18alkyl, R4 is hydrogen or —CH2—CH(OH)—CH2—S(═O)m—R, X is C1-C8alkyl, Y is C1-C8alkyl, m is 0 or 1, n is 1 or 2, q is 1 or 2, x is from 2 to 6, and y is 1 or 2.

Abstract: The invention concerns the use of a composition or premix based on volatile corrosion inhibitors comprising, in order to limit to a maximum the release and/or degradation of the volatile corrosion inhibitors when the composition or premix is being formed, either an efficient amount of a structuring agent consisting of at least one solid or pasty substance whereof the melting point ranges from 40 to 110° C. preferably from 50 to 90° C., or a liquid substance capable of forming, mixed with a mineral filler, a solid or pasty combination. The invention also concerns a composition based on volatile corrosion inhibitors comprising a composition based on volatile corrosion inhibitors comprising an efficient amount which contains an efficient amount of a solid structuring agent. The invention further concerns polymer based articles having as constituent said composition or premix; said article are useful for protecting metal parts against corrosion.

Abstract: Process for the hydrogenation of a polymer composed of conjugated diene monomer units and a nitrile group-containing monomer units, in which hydrogenation is carried out in the presence of hydrazine, and an oxidizing compound, with the hydrogenation being carried out in the presence of a antioxidant. It is preferred for NBR to be used as polymer.

Abstract: The present invention relates to methods for predispersing additives used in a compounding process, as well as to predispersed particles. More particularly, the present invention relates to methods for predispersing, particularly ground elastomers which are used as compounding ingredients for many applications, especially for the production of rubber or plastic materials such as tires.

Abstract: The invention concerns novel copolymers of the poly(styrene)-poly(ethylene-butylene)-poly(styrene) type wherein the central poly(ethylene-butylene) sequence has been modified by chemical grafting of hydrophilic groups to make them amphiphilic. The invention also concerns a method for preparing said novel amphiphilic copolymers and their use in particular as emulsifying agent or absorbent.

Abstract: The invention relates to silicone compositions which can be crosslinked to give elastomers and which comprises the constituents (A) from 20 to 99% by weight of polyorganosiloxane containing at least two alkenyl groups per molecule and having a viscosity at 25° C. of from 0.1 to 500,000 Pa.s, (B) from 1 to 80% by weight of non-reinforcing filler having a mean particle size of from 0.1 to 200 &mgr;m and a specific surface area of <100 m2/g, (C) a crosslinking component comprising (C1) an organic peroxide, or (C2) an organosilicon compound containing at least two SiH functions per molecule in combination with a hydrosilylation catalyst, and (D) a nitrogen compound which is selected from amino, ammonium and amido compounds and nitrogen-containing organosilicon compounds. The compositions exhibit improved thermal stability and resistance to oil at elevated temperatures.