Abstract: The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.

Abstract: The invention relates to the use of polyalkyl ester for reducing the temperature in a lubricating oil composition. The polyalkyl ester has a specific viscosity ?sp/c of between 5 and 30 ml/g, measured in chloroform at 25° C.

Abstract: The invention relates to lubricating oil formulations comprising copolymers or graft copolymers produced by radically polymerising polymerisable monomers and, in addition comprising long-chain ethylenically unsaturated compounds containing alkyl, in particular acrylate or methacrylate substitutes provided with hydrogen-bridge donator functions. The monomer exhibiting a hydrogen-bridge donator property is contained, according to said invention, in the polymer backbone or in graft side branches. Apart from the polymers containing monomers provided with hydrogen-bridge donator functions, said invention relates to polymers containing monomers simultaneously carrying donator and acceptor functions. It was found that the hydrogen-bridge donator functions of a polymer, in particular a simultaneous availability of the hydrogen-bridge donator and acceptor functions produce the positive effects on the anti-wear protection and on a detergency and dispersancy action.

Abstract: The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.

Abstract: The present invention relates to the use of comb polymers comprising, in the main chain, repeat units derived from polyolefin-based macromonomers with a molecular weight of at least 500 g/mol, and repeat units derived from low molecular weight monomers with a molecular weight less than 500 g/mol, for improving the load-bearing capacity of hydraulic fluids. Furthermore, the present invention describes new hydraulic fluids.

Abstract: The present invention relates to the use of comb polymers comprising, in the main chain, repeat units derived from polyolefin-based macromonomers with a molecular weight of at least 500 g/mol, and repeat units derived from low molecular weight monomers with a molecular weight less than 500 g/mol, for improving the load-bearing capacity of hydraulic fluids. Furthermore, the present invention describes new hydraulic fluids.

Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.

Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.

Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.

Abstract: (EN) The invention relates to the use of polyalkyl ester for reducing the temperature in a lubricating oil composition. The polyalkyl ester has a specific viscosity $g(h)sp/c of between 5 and 30 ml/g, measured in chloroform at 25° C.

Abstract: The invention relates to lubricating oil formulations comprising copolymers or graft copolymers produced by radically polymerising polymerisable monomers and, in addition comprising long-chain ethylenically unsaturated compounds containing alkyl, in particular acrylate or methacrylate substitutes provided with hydrogen-bridge donator functions. The monomer exhibiting a hydrogen-bridge donator property is contained, according to said invention, in the polymer backbone or in graft side branches. Apart from the polymers containing monomers provided with hydrogen-bridge donator functions, said invention relates to polymers containing monomers simultaneously carrying donator and acceptor functions. It was found that the hydrogen-bridge donator functions of a polymer, in particular a simultaneous availability of the hydrogen-bridge donator and acceptor functions produce the positive effects on the anti-wear protection and on a detergency and dispersancy action.

Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.

Abstract: What are disclosed are a method for making a concentrated emulsion of an olefin copolymer in a carrier medium suitable for use in oil additives, without previous dissolution of the olefin copolymers, by preparing a solution of an emulsifier of the typeA-X,wherein A represents a sequence or segment of an olefin copolymer, of hydrogenated polyisoprene, or of an hydrogenated butadiene/isoprene copolymer, and X represents a sequence or segment composed of polyacrylate and/or polymethacrylate, in a carrier medium which does not substantially dissolve the olefin copolymers but does dissolve the X sequences, and then emulsifying an olefin copolymer in the solution of the emulsifier in the carrier medium at a temperature from 40.degree. C. to 150.degree. C. with the use of shearing forces, as well as emulsions made by such a method.

Abstract: What are disclosed are concentrated emulsions of an olefin copolymer in a liquid carrier medium which does not dissolve the copolymer and, as an emulsifier, a graft or block copolymer of the formulaA--Y,wherein A represents a sequence or segment of an olefin copolymer, of hydrogenated polyisoprene, or of an hydrogenated butadiene/isoprene copolymer, and Y represents a sequence or segment, formed by the polymerization of vinyl monomers which essentially are not of the acrylate or methacrylate type, which is soluble in the carrier medium, as well as methods for making the same.

Abstract: What are disclosed are concentrated emulsions of an olefin copolymer in a liquid carrier medium which does not dissolve the copolymer and, as an emulsifier, a graft or block copolymer of the formulaA--Y,wherein A represents a sequence or segment of an olefin copolymer, of hydrogenated polyisoprene, or of an hydrogenated butadiene/isoprene copolymer, and Y represents a sequence or segment, formed by the polymerization of vinyl monomers which essentially are not of the acrylate or methacrylate type, which is soluble in the carrier medium, as well as methods for making the same.

Abstract: Water-swellable, cross-linked, bead copolymers of (A) an ethylenically unsaturated monomer having a carboxylic acid anhydride, glycidyl or succinimide group, (B) a comonomer having at least two radical-polymerizable carbon double bonds, and (C) a radical-polymerizable water-soluble comonomer are disclosed to be excellent carriers capable of bonding with biologically active substances such as enzymes, enzyme substrates, inhibitors, hormones, antibiotics, antigens, and peptides.