Merck Patent Gmbh

Guenter Hauke

Leticia Garcia Diez

Volker Hilarius

Michael Ukelis

Edgar Boehm

Rudolf Rhein

Andreas Beirau

Sebastien Marie

Michael Haeberl

Holger Jost

Guenter Brenner

Thomas Gensert

Hans Muntermann

Michael Roemer

Nils Oldenburg

Laetizia Garcia Diez

Martin Wichmann

The invention relates to a method for printing a surface () with a fluid which contains an organic semiconductor material. The fluid is transported from a storage container () through a supply line () to a printing head (), which can be moved over the surface (), and printed onto the surface () by the printing head (). At least one part of the fluid which is transported through the supply line () to the printing head () is returned to the storage container () via a return line (), wherein a fluid circuit is formed, and the fluid in the fluid circuit flows through a cleaning device () with which the fluid is cleaned. The fluid returned to the storage container () flows around and surrounds the fluid being transported in the supply line () to the printing head () at least in some regions. During the printing process, the storage container () is arranged in a fixed location at a distance to the surface (), and the printing head () which is connected to the storage container () via a flexible supply line () and a flexible return line () is moved over the surface () for printing purposes.

Method and device for printing a surface with a fluid

In the case of a method for filling a transportation container () with a fluid, the fluid in a purification circuit () is conveyed multiple times through the purification installation (), and by way of a contamination-measurement installation () a key contamination indicator of a fluid-specimen quantity in the purification circuit () is determined, wherein a filling procedure of the transportation container () with the fluid is terminated only once the key contamination indicator undershoots a first threshold value. The fluid-specimen quantity that is provided for determining the key contamination indicator may be diverted from the purification circuit (), be infed to the contamination-measurement installation (), and upon determining the key contamination indicator be returned to the purification circuit (). In a container-purification step, a container-fluid quantity from the purification circuit () that has previously been introduced into the transportation container () may be again retrieved from the transportation container () and be returned to the purification circuit (). A key contamination indicator of that container-fluid quantity that has been retrieved from the transportation container () may be determined by the contamination-measurement installation (), and the filling procedure of the transportation container () with the fluid may be terminated only once the key contamination indicator undershoots a third threshold value.

Method and filling device for filling a transport container with a fluid

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

Purification device for a liquid-crystal mixture

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

Filling device and use thereof for dispensing a fluid

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Muehltal, Germany

Guenter Hauke