Abstract: A surface of specific reactivity is formed by adsorbing a modified block polymeric surfactant of the Pluronic-type, i.e., containing pendant poly(ethylene oxide) blocks attached at an end to poly(propylene oxide) center blocks and with specifically reactive groups at the unattached ends of the poly(ethylene oxide) blocks, upon a hydrophobic surface.

Abstract: The present invention relates to a roll, comprising cemented carbide and cast iron, and a method for manufacture of the same. The roll may be used for hot or cold rolling. The barrel comprises one or several cemented carbide rings, east by centrifugal casting method into a roll body of an iron alloy. The casting alloy comprises an essentially graphitic east iron, which after the casting contains residual austenitc. This residual austenitc is transformed at subsequent heat treatment step (or steps) totally or partly to mainly bainite under volume increase, with the aim of reducing or totally eliminating the differential shrinkage between the east iron and the cemented carbide as a result from cooling after the casting. The central part of the roll body may alternatively consist of another alloy.

Abstract: A roll, comprising cemented carbide and cast iron. The roll may be used for hot or cold rolling. The barrel comprises one or several cemented carbide rings, cast by centrifugal casting method into a roll body of an iron alloy. The casting alloy comprises an essentially graphitic cast iron, which after the casting contains residual austenite. This residual austenite is transformed at subsequent heat treatment step (or steps) totally or partly to mainly bainite under volume increase, with the aim of reducing or totally eliminating the differential shrinkage between the cast iron and the cemented carbide as a result from cooling after the casting. The central part of the roll body may alternatively consist of another alloy.

Abstract: A pressing tool for use in the cavity of a press device for forming sheet metal parts around forming tools, the pressing tool including an upper tool part with flanges at the peripheral edges thereof and directed downwardly, a lower tool part with flanges at the peripheral edges thereof and directed upwardly, wall elements positioned within the respective flanges of the upper and lower tool parts to form a forming space, a forming tool positioned in the space on the lower tool part, and an elastomeric forming pad located in the forming space for forming a work piece around the forming tool.

Abstract: A method for producing products for separation, ion exchange or as basic material for the preparation of various derivatives designed for separation purposes and adsorption purposes by means of a polymer being activated with a reagent containing at least two bifunctional groups so that at least one of the reactive, functional groups in each molecule is bonded to the polymer while leaving a considerable amount of remaining groups unreacted but still reactive so that the activated polymer can be caused to react with thiosulphate after surplus reagent has been eliminated. The invention also relates to the produced products or their derivatives consisting of a water-soluble hydroxyl group or amino group containing polymer substituted with organic side-chains, each containing one or more thiosulphate groups or derivatives of such groups and the use of the products for purification of water, separation, immobilization of enzymes, etc.