Mann+hummel Gmbh

Basf Aktiengesellschaft

Basf Se Corporation

Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Clap Co., Ltd.

Stefan Becker

Kai Hilarius

Joerg Menssen

Thomas Goetz

Joachim Pakusch

Wolfgang Heikamp

Oliver Steins

Karlheinz Münkel

Carsten Schippers

Chao Wu

Fulvio G Brunetti

Tobias Neumann

Klaus-Dieter Ruhland

Ludwig Voelkel

Karlheinz Muenkel

Emmanuel Martin

Klaus Müllen

Michael Heim

Duc Cuong Nguyen

Markus Kolczyk

Matthias Krieger

Rolf Gulden

Iori Doi

Andreas Stephan

Lysander Chrisstoffels

Jens Gutekunst

JunMin Lee

Stefanie Spilger

Wolfgang Hansch

Dieter Hannu Boeckh

Konrad Knoll

Bernhard Hauer

Marcus Guzmann

Rainer Dyllick-Brenzinger

Mario Rieger

Günter Oetter

Klaus Muellen

Klemens Dworatzek

Mi Zhou

Thomas Pfeiffer

Werner Blossey

Guenter Oetter

Norbert Wagner

Arno Boehm

Volker Braig

Manfred Winter

Konrad Roschmann

Daniel Kaelblein

Thomas Sieber

Steffen Ackermann

Michael Wolf

Kamesh R Vyakaranam

Thomas Weitz

Josef Rohrmeier

Andreas Pelz

Bernd Meyer-Roscher

Alexandre Terrenoire

Cordula Mock-Knoblauch

Christopher Kohl

Joerg Pastre

Robert Feuerhake

Marc Leduc

Markus Klumpe

Andreas Fechtenkoetter

Michael Gross

Christian Knoll

Frank A Reinhold

Lorenz Siggel

Jens Hartig

Werner Gauweiler

Susanne Petrovic

Bettina Wester

Ludwig Völkel

Maximilian Hemgesberg

Ralf Poh

Stephan Amthor

Thomas Petschl

Matthias Klüglein

Jordan Thomas Kopping

Oliver Luley

Wei Hsiang Lin

Giseok Lee

Dietmar Häring

Matthias Klueglein

Peter Biebricher

Michael Eustachi

Pramod Kakumanu Reddy

Andreas Fechtenkötter

Chongjun Jiao

Steffan Ackermann

Jens Hähn

Jan Zink

Szehui Chua

Arno Böhm

Yassine Maaradji

Joachim Stinzendörfer

Rolf Sanders

Raimond Praptana

Parmod Kakumanu Reddy

Raissa Nathania Santoso

The present invention relates to a process for the preparation of a top-gate, bottom-contact organic field effect transistor on a substrate, which organic field effect transistor comprises source and drain electrodes, a semiconducting layer, a cured first dielectric layer and a gate electrode, and which process comprises the steps of: i) applying a composition comprising an organic semiconducting material to form the semiconducting layer, ii) applying a composition comprising a first dielectric material and a crosslinking agent carrying at least two azide groups to form a first dielectric layer, iii) curing portions of the first dielectric layer by light treatment, iv) removing the uncured portions of the first dielectric layer, and v) removing the portions of the semiconducting layer that are not covered by the cured first dielectric layer, wherein the first dielectric material comprises a star-shaped polymer consisting of at least one polymer block A and at least two polymer blocks B, wherein each polymer block B is attached to the polymer block A, and wherein at least 60 mol % of the repeat units of polymer block B are selected from the group consisting of Formulas (1A), (1B), (1C), (1D), (1E) and (1F), wherein R, R, R, R, R, R, Rand Rare independently and at each occurrence H or C-C-alkyl.

Patterning method for preparing top-gate, bottom-contact organic field effect transistors

The present invention relates to a process for the preparation of a top-gate, bottom-contact organic field effect transistor on a substrate, which organic field effect transistor comprises source and drain electrodes, a semiconducting layer, a cured first dielectric layer and a gate electrode, and which process comprises the steps of: i) applying a composition comprising an organic semiconducting material to form the semiconducting layer, ii) applying a composition comprising a first dielectric material and a crosslinking agent carrying at least two azide groups to form a first dielectric layer, iii) curing portions of the first dielectric layer by light treatment, iv) removing the uncured portions of the first dielectric layer, and v) removing the portions of the semiconducting layer that are not covered by the cured first dielectric layer, wherein the first dielectric material comprises a star-shaped polymer consisting of at least one polymer block A and at least two polymer blocks B, wherein each polymer block B is attached to the polymer block A, and wherein at least 60 mol % of the repeat units of polymer block B are selected from the group consisting of Formulas (1A), (1B), (1C), (1D), (1E) and (1F), wherein R, R, R, R, R, R, Rand Rare independently and at each occurrence H or C-C-alkyl. 

The present invention relates to the use of a mono-azide compound for cross-linking polymer strands, wherein said mono-azide compound has a structure of the formula (I): (I), wherein Qand Qare each independently from another a halogen and wherein R, Rand Rare each independently from another any not comprising an azido moiety. Further, the present invention relates to a method for cross-linking polymer stands and to a cross-linked polymer composition obtainable from said method and an electronic device comprising such composition. 

Mono-azide compound for photo-induced cross-linking polymer strands

Polymers comprising at least one unit of formula (1) wherein n is 0 or 1, m and p are independently from each other 0, 1, 2, 3, 4, 5 or 6, provided that the sum of n, m and p is at least 2, and n and p are not 0 at the same time, Arand Arare independently from each other C-arylene or C-aryl, which may be substituted with 1 to 4 substituents independently selected from the group consisting of C-alkyl, C-alkenyl, C-alkynyl, C-cycloalkyl, C-aryl and 5 to 14 membered heteroaryl, and X, Xand Xare independently from each other and at each occurrence O or S, compositions comprising these polymers, and electronic devices comprising a layer formed from the compositions. Preferably, the electronic device is an organic field effect transistor and the layer is the dielectric layer. 

Ether-based polymers as photo-crosslinkable dielectrics

The present invention provides compounds of formula a process for their preparation, a solution comprising these compounds, a process for the preparation of a device using the solution, devices obtainable by the process and the use of the bis-azide-type compounds as cross-linkers.

Azide-based crosslinking agents

The present invention provides compounds of formula 1 wherein Xand Xare independently from each other O, S or Se, and an electronic device comprising the compounds as semiconducting material. 

Heteroacenes for organic electronics

Air filter

A filter element () for an air filter () has a tubular filter medium (), the annular cross-section of which encloses an interior () of the filter element and which has an inner wall () that adjoins the interior of the filter element and that extends in the form of at least one convex arch () and at least two concave arches (), the concave arch () being located between two convex arches () such that the interior () of the filter element has a constriction () in the area of the concave arch (), the constriction () being adjoined by two wide zones () of the interior of the filter element.

Air filter element, air filter housing and air filter system

A filter insert has a filter element with an end surface at an inlet side and an end surface at an outlet side that are spaced from one another in a main flow direction of the filter insert. A frame circumferentially extends about lateral sides of the filter element. An axial seal is supported on the frame and has a sealing direction in or opposite to the main flow direction. When inserted into a filter housing and contacting a sealing surface of the filter housing, the seal separates seal-tightly the inlet and outlet. The frame has on two opposite lateral sides of the filter element contact surfaces for clamping the filter insert by matching clamping elements. The contact surfaces are oriented opposite to the sealing direction and each have an individual profile of varying height extending along the two opposite lateral sides.

Filter insert and filter device

A filter housing () having a raw-side inlet () and a clean-side outlet () for media to be filtered and a forward-mounted part designed as a cyclone pre-separator () including at least one fastening region () of a first part () made substantially of plastic is fastened to the raw side, and a second part () braced between the first part () and the filter housing (). The fastening region () of the first part () is screwed to the filter housing () using metal fastening elements (), and&#x2014;at the upper side facing away from the filter housing () it has at least one pressing contour () for compensating for at least one dimension tolerance of the elements fastened together. The contour is substantially plastic material, which can be deformed by means of applying a force generated by the screwing together of the metal fastening elements (), in particular which can be melted.

Filter device

Filter element or air filter in the configuration of a multiple bellows filter with an increased efficiency for use in internal combustion engines, wherein a folded filter bellows is arranged radially inwardly of another folded filter bellows and the inner folded filter bellows has a greater or deeper fold depth than the outer folded filter bellows.

Efficiency-improved multiple bellows filter

Air filter having a preseparator with an optimized intake geometry, wherein an outflow geometry of a preseparator is matched to an intake geometry of a filter element.

Air filter with preseparator

An air filter system () includes a filter housing () with a filter element () received within the housing. A secondary housing is secured to and closing the filter housing. The secondary housing includes a locking element operable to engage the filter housing and the filter element. The filter element () includes at least one fastening element () wherein the locking element () of the secondary housing () engages the at least one fastening element () in such a way, when the filter element () is accommodated in the filter housing () and is disposed between the filter housing () and the secondary housing (), that the secondary housing () is detachably clamped to the filter housing ().

Air filter system and filter element

A filter device has a compact filter made of a filter material that is wound spirally. A star filter that is made of a filter material that has folds arranged in a star shape surrounds the compact filter. The filter device has a cylindrical shape. A fluid to be filtered passes the compact filter in an axial direction and the star filter in a radial direction. The filter device is exchangeable and is mounted in a filter housing such that the compact filter and the star filter have a common raw side and a common clean side that are separated from each other.

Growing community of inventors

Mannheim, Germany

Stefan Becker