Abstract: A method for providing a casing (11) for a prefabricated column (1) of chromatography column material in order to manufacture a chromatography column, wherein the casing (11) is generated by additive manufacturing, includes the steps of rotating the column (1) of chromatography column material with respect to a casing material feed in a manner to successively cover a casing surface (8) of the chromatography column material along a contact area path (12), and of arranging an amount of flowable casing material (9) at a current contact area (7) along the contact area path (12) at the casing surface (8) of the column (1) of chromatography column material in order to generate the casing (11) for the chromatography column by successively adding the solidified amount of casing material (9) at the contact area (7).

Abstract: A switchable optical device including in this order a first substrate, a first conductive layer, a switchable layer, a second conductive layer and a second substrate, which device further contains one or both of the following: i) the first conductive layer contains a first contact zone and a second contact zone, wherein the first contact zone is electrically insulated from the second contact zone and the switchable optical device contains an electrical interconnect for electrically connecting the second contact zone of the first conductive layer the second conductive layer, ii) the switchable optical device contains at least one further sheet which is laminated to the first substrate and/or the second substrate, wherein first substrate, second substrate and the at least one further sheet have essentially the same thermal expansion coefficient. A switchable glazing unit containing at least one glass pane and at least one switchable optical device.

Abstract: A method for providing a casing (11) for a prefabricated column (1) of chromatography column material in order to manufacture a chromatography column, wherein the casing (11) is generated by additive manufacturing, includes the steps of rotating the column (1) of chromatography column material with respect to a casing material feed in a manner to successively cover a casing surface (8) of the chromatography column material along a contact area path (12), and of arranging an amount of flowable casing material (9) at a current contact area (7) along the contact area path (12) at the casing surface (8) of the column (1) of chromatography column material in order to generate the casing (11) for the chromatography column by successively adding the solidified amount of casing material (9) at the contact area (7).

Abstract: A purification device (1), for the purification of a liquid-crystal mixture, has a flow chamber (2) which has an inlet opening (3) and an outlet opening (4), arranged opposite the inlet opening, in order to be able to introduce the liquid-crystal mixture into the flow chamber (2) and discharge it from the latter, and at least one flow distribution element (5) which is arranged in the flow chamber (2) in the region of the inlet opening (3), and at least one filter element (6) which is arranged in the region of the outlet opening (4), where a length of the flow chamber (2) measured in the flow direction is at least a factor of 2 greater than a greatest internal dimension of the flow chamber (2) transverse to the flow direction.

Abstract: The invention relates to a filling device (1) for dispensing a fluid into at least one container, where the filling device (1) has a weighing system (2) and a filling-needle system (3). The weighing system (2) has a positioning device (4) which can be adapted to a container diameter and which may have an annular design. The weighing system (2) is arranged on an accommodation platform (7) which can be moved vertically by means of a linear unit. The filling-needle system (3) is arranged on a displacement unit in a position at a distance in the axial direction above the positioning device (4).

Abstract: A purification device (1), for the purification of a liquid-crystal mixture, has a flow chamber (2) which has an inlet opening (3) and an outlet opening (4), arranged opposite the inlet opening, in order to be able to introduce the liquid-crystal mixture into the flow chamber (2) and discharge it from the latter, and at least one flow distribution element (5) which is arranged in the flow chamber (2) in the region of the inlet opening (3), and at least one filter element (6) which is arranged in the region of the outlet opening (4), where a length of the flow chamber (2) measured in the flow direction is at least a factor of 2 greater than a greatest internal dimension of the flow chamber (2) transverse to the flow direction.

Abstract: The invention relates to a filling device (1) for dispensing a fluid into at least one container, where the filling device (1) has a weighing system (2) and a filling-needle system (3). The weighing system (2) has a positioning device (4) which can be adapted to a container diameter and which may have an annular design. The weighing system (2) is arranged on an accommodation platform (7) which can be moved vertically by means of a linear unit. The filling-needle system (3) is arranged on a displacement unit in a position at a distance in the axial direction above the positioning device (4).

Abstract: The present invention relates to a holder for monolithic sorbents in which a radial pressure can be exerted over the entire length of the sorbent by a conically tapering clamping tube.

Abstract: The invention relates to a method of preparing a birefringent marking by printing a polymerisable liquid crystal material onto at least one side of a substrate and polymerising the liquid crystal material, to a birefringent marking obtained by this method, and to the use of the birefringent marking for decorative, security, authentification and identification applications.

Abstract: The present invention relates to processes for the production of a structured surface on a substrate in which a substrate is introduced into a sol which has been set in vibration or a substrate which has been set in vibration is introduced into a sol which has optionally been set in vibration. The present invention likewise relates to substrates structured in this way and to the use thereof in optical applications.

Abstract: The present invention relates to processes for the structuring of surfaces of substrates in which a substrate is structured in a first step and, in a second step, coated by the sol-gel process for partial smoothing of the structuring, giving, in particular, a surface which scatters in a diffuse manner.

Abstract: In a method for the taking and analysis of samples from a microreaction system (3) having a suction line (9) arranged laterally alongside a discharge aperture (4) of the microreaction system (3), a reduced pressure is generated in the suction line (9) for the aspiration of substances exiting from the discharge aperture (4), causing the exiting substance stream to be divided into an aspirated substance stream and a free-falling substance stream, and one of the two divided substance streams is subsequently fed to an analytical device (10) for analysis. The reduced pressure in the suction line (9) can be influenced and thus the division of the exiting substance stream can be controlled as a function of a result of the analysis. Reaction parameters can also be pre-specified or controlled as a function of analytical results.

Abstract: The invention relates to a method in which a chiral liquid-crystal layer is brought into contact with an extraction medium (extractant) by coating or printing methods in such a way that diffusion of substances out of the liquid-crystal layer into the extractant occurs.

Abstract: The invention relates to flake-form effect pigments, characterised in that they consist of transparent or semitransparent materials and have a groove or grid structure, to processes for the production thereof, and to the use thereof.

Abstract: The invention relates to a method of preparing a birefringent marking by printing a polymerisable liquid crystal material onto at least one side of a substrate and polymerising the liquid crystal material, to a birefringent marking obtained by this method, and to the use of the birefringent marking for decorative, security, authentification and identification applications.